You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
5442 lines
206 KiB
5442 lines
206 KiB
|
|
|
|
// The Module object: Our interface to the outside world. We import
|
|
// and export values on it. There are various ways Module can be used:
|
|
// 1. Not defined. We create it here
|
|
// 2. A function parameter, function(Module) { ..generated code.. }
|
|
// 3. pre-run appended it, var Module = {}; ..generated code..
|
|
// 4. External script tag defines var Module.
|
|
// We need to check if Module already exists (e.g. case 3 above).
|
|
// Substitution will be replaced with actual code on later stage of the build,
|
|
// this way Closure Compiler will not mangle it (e.g. case 4. above).
|
|
// Note that if you want to run closure, and also to use Module
|
|
// after the generated code, you will need to define var Module = {};
|
|
// before the code. Then that object will be used in the code, and you
|
|
// can continue to use Module afterwards as well.
|
|
var Module = typeof Module != 'undefined' ? Module : {};
|
|
|
|
// See https://caniuse.com/mdn-javascript_builtins_object_assign
|
|
|
|
// --pre-jses are emitted after the Module integration code, so that they can
|
|
// refer to Module (if they choose; they can also define Module)
|
|
// {{PRE_JSES}}
|
|
|
|
// Sometimes an existing Module object exists with properties
|
|
// meant to overwrite the default module functionality. Here
|
|
// we collect those properties and reapply _after_ we configure
|
|
// the current environment's defaults to avoid having to be so
|
|
// defensive during initialization.
|
|
var moduleOverrides = Object.assign({}, Module);
|
|
|
|
var arguments_ = [];
|
|
var thisProgram = './this.program';
|
|
var quit_ = (status, toThrow) => {
|
|
throw toThrow;
|
|
};
|
|
|
|
// Determine the runtime environment we are in. You can customize this by
|
|
// setting the ENVIRONMENT setting at compile time (see settings.js).
|
|
|
|
// Attempt to auto-detect the environment
|
|
var ENVIRONMENT_IS_WEB = typeof window == 'object';
|
|
var ENVIRONMENT_IS_WORKER = typeof importScripts == 'function';
|
|
// N.b. Electron.js environment is simultaneously a NODE-environment, but
|
|
// also a web environment.
|
|
var ENVIRONMENT_IS_NODE = typeof process == 'object' && typeof process.versions == 'object' && typeof process.versions.node == 'string';
|
|
var ENVIRONMENT_IS_SHELL = !ENVIRONMENT_IS_WEB && !ENVIRONMENT_IS_NODE && !ENVIRONMENT_IS_WORKER;
|
|
|
|
if (Module['ENVIRONMENT']) {
|
|
throw new Error('Module.ENVIRONMENT has been deprecated. To force the environment, use the ENVIRONMENT compile-time option (for example, -s ENVIRONMENT=web or -s ENVIRONMENT=node)');
|
|
}
|
|
|
|
// `/` should be present at the end if `scriptDirectory` is not empty
|
|
var scriptDirectory = '';
|
|
function locateFile(path) {
|
|
if (Module['locateFile']) {
|
|
return Module['locateFile'](path, scriptDirectory);
|
|
}
|
|
return scriptDirectory + path;
|
|
}
|
|
|
|
// Hooks that are implemented differently in different runtime environments.
|
|
var read_,
|
|
readAsync,
|
|
readBinary,
|
|
setWindowTitle;
|
|
|
|
// Normally we don't log exceptions but instead let them bubble out the top
|
|
// level where the embedding environment (e.g. the browser) can handle
|
|
// them.
|
|
// However under v8 and node we sometimes exit the process direcly in which case
|
|
// its up to use us to log the exception before exiting.
|
|
// If we fix https://github.com/emscripten-core/emscripten/issues/15080
|
|
// this may no longer be needed under node.
|
|
function logExceptionOnExit(e) {
|
|
if (e instanceof ExitStatus) return;
|
|
let toLog = e;
|
|
if (e && typeof e == 'object' && e.stack) {
|
|
toLog = [e, e.stack];
|
|
}
|
|
err('exiting due to exception: ' + toLog);
|
|
}
|
|
|
|
var fs;
|
|
var nodePath;
|
|
var requireNodeFS;
|
|
|
|
if (ENVIRONMENT_IS_NODE) {
|
|
if (!(typeof process == 'object' && typeof require == 'function')) throw new Error('not compiled for this environment (did you build to HTML and try to run it not on the web, or set ENVIRONMENT to something - like node - and run it someplace else - like on the web?)');
|
|
if (ENVIRONMENT_IS_WORKER) {
|
|
scriptDirectory = require('path').dirname(scriptDirectory) + '/';
|
|
} else {
|
|
scriptDirectory = __dirname + '/';
|
|
}
|
|
|
|
// include: node_shell_read.js
|
|
|
|
|
|
requireNodeFS = () => {
|
|
// Use nodePath as the indicator for these not being initialized,
|
|
// since in some environments a global fs may have already been
|
|
// created.
|
|
if (!nodePath) {
|
|
fs = require('fs');
|
|
nodePath = require('path');
|
|
}
|
|
};
|
|
|
|
read_ = function shell_read(filename, binary) {
|
|
requireNodeFS();
|
|
filename = nodePath['normalize'](filename);
|
|
return fs.readFileSync(filename, binary ? undefined : 'utf8');
|
|
};
|
|
|
|
readBinary = (filename) => {
|
|
var ret = read_(filename, true);
|
|
if (!ret.buffer) {
|
|
ret = new Uint8Array(ret);
|
|
}
|
|
assert(ret.buffer);
|
|
return ret;
|
|
};
|
|
|
|
readAsync = (filename, onload, onerror) => {
|
|
requireNodeFS();
|
|
filename = nodePath['normalize'](filename);
|
|
fs.readFile(filename, function(err, data) {
|
|
if (err) onerror(err);
|
|
else onload(data.buffer);
|
|
});
|
|
};
|
|
|
|
// end include: node_shell_read.js
|
|
if (process['argv'].length > 1) {
|
|
thisProgram = process['argv'][1].replace(/\\/g, '/');
|
|
}
|
|
|
|
arguments_ = process['argv'].slice(2);
|
|
|
|
if (typeof module != 'undefined') {
|
|
module['exports'] = Module;
|
|
}
|
|
|
|
process['on']('uncaughtException', function(ex) {
|
|
// suppress ExitStatus exceptions from showing an error
|
|
if (!(ex instanceof ExitStatus)) {
|
|
throw ex;
|
|
}
|
|
});
|
|
|
|
// Without this older versions of node (< v15) will log unhandled rejections
|
|
// but return 0, which is not normally the desired behaviour. This is
|
|
// not be needed with node v15 and about because it is now the default
|
|
// behaviour:
|
|
// See https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode
|
|
process['on']('unhandledRejection', function(reason) { throw reason; });
|
|
|
|
quit_ = (status, toThrow) => {
|
|
if (keepRuntimeAlive()) {
|
|
process['exitCode'] = status;
|
|
throw toThrow;
|
|
}
|
|
logExceptionOnExit(toThrow);
|
|
process['exit'](status);
|
|
};
|
|
|
|
Module['inspect'] = function () { return '[Emscripten Module object]'; };
|
|
|
|
} else
|
|
if (ENVIRONMENT_IS_SHELL) {
|
|
|
|
if ((typeof process == 'object' && typeof require === 'function') || typeof window == 'object' || typeof importScripts == 'function') throw new Error('not compiled for this environment (did you build to HTML and try to run it not on the web, or set ENVIRONMENT to something - like node - and run it someplace else - like on the web?)');
|
|
|
|
if (typeof read != 'undefined') {
|
|
read_ = function shell_read(f) {
|
|
return read(f);
|
|
};
|
|
}
|
|
|
|
readBinary = function readBinary(f) {
|
|
let data;
|
|
if (typeof readbuffer == 'function') {
|
|
return new Uint8Array(readbuffer(f));
|
|
}
|
|
data = read(f, 'binary');
|
|
assert(typeof data == 'object');
|
|
return data;
|
|
};
|
|
|
|
readAsync = function readAsync(f, onload, onerror) {
|
|
setTimeout(() => onload(readBinary(f)), 0);
|
|
};
|
|
|
|
if (typeof scriptArgs != 'undefined') {
|
|
arguments_ = scriptArgs;
|
|
} else if (typeof arguments != 'undefined') {
|
|
arguments_ = arguments;
|
|
}
|
|
|
|
if (typeof quit == 'function') {
|
|
quit_ = (status, toThrow) => {
|
|
// Unlike node which has process.exitCode, d8 has no such mechanism. So we
|
|
// have no way to set the exit code and then let the program exit with
|
|
// that code when it naturally stops running (say, when all setTimeouts
|
|
// have completed). For that reason we must call `quit` - the only way to
|
|
// set the exit code - but quit also halts immediately, so we need to be
|
|
// careful of whether the runtime is alive or not, which is why this code
|
|
// path looks different than node. It also has the downside that it will
|
|
// halt the entire program when no code remains to run, which means this
|
|
// is not friendly for bundling this code into a larger codebase, and for
|
|
// that reason the "shell" environment is mainly useful for testing whole
|
|
// programs by themselves, basically.
|
|
if (runtimeKeepaliveCounter) {
|
|
throw toThrow;
|
|
}
|
|
logExceptionOnExit(toThrow);
|
|
quit(status);
|
|
};
|
|
}
|
|
|
|
if (typeof print != 'undefined') {
|
|
// Prefer to use print/printErr where they exist, as they usually work better.
|
|
if (typeof console == 'undefined') console = /** @type{!Console} */({});
|
|
console.log = /** @type{!function(this:Console, ...*): undefined} */ (print);
|
|
console.warn = console.error = /** @type{!function(this:Console, ...*): undefined} */ (typeof printErr != 'undefined' ? printErr : print);
|
|
}
|
|
|
|
} else
|
|
|
|
// Note that this includes Node.js workers when relevant (pthreads is enabled).
|
|
// Node.js workers are detected as a combination of ENVIRONMENT_IS_WORKER and
|
|
// ENVIRONMENT_IS_NODE.
|
|
if (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER) {
|
|
if (ENVIRONMENT_IS_WORKER) { // Check worker, not web, since window could be polyfilled
|
|
scriptDirectory = self.location.href;
|
|
} else if (typeof document != 'undefined' && document.currentScript) { // web
|
|
scriptDirectory = document.currentScript.src;
|
|
}
|
|
// blob urls look like blob:http://site.com/etc/etc and we cannot infer anything from them.
|
|
// otherwise, slice off the final part of the url to find the script directory.
|
|
// if scriptDirectory does not contain a slash, lastIndexOf will return -1,
|
|
// and scriptDirectory will correctly be replaced with an empty string.
|
|
// If scriptDirectory contains a query (starting with ?) or a fragment (starting with #),
|
|
// they are removed because they could contain a slash.
|
|
if (scriptDirectory.indexOf('blob:') !== 0) {
|
|
scriptDirectory = scriptDirectory.substr(0, scriptDirectory.replace(/[?#].*/, "").lastIndexOf('/')+1);
|
|
} else {
|
|
scriptDirectory = '';
|
|
}
|
|
|
|
if (!(typeof window == 'object' || typeof importScripts == 'function')) throw new Error('not compiled for this environment (did you build to HTML and try to run it not on the web, or set ENVIRONMENT to something - like node - and run it someplace else - like on the web?)');
|
|
|
|
// Differentiate the Web Worker from the Node Worker case, as reading must
|
|
// be done differently.
|
|
{
|
|
// include: web_or_worker_shell_read.js
|
|
|
|
|
|
read_ = (url) => {
|
|
var xhr = new XMLHttpRequest();
|
|
xhr.open('GET', url, false);
|
|
xhr.send(null);
|
|
return xhr.responseText;
|
|
}
|
|
|
|
if (ENVIRONMENT_IS_WORKER) {
|
|
readBinary = (url) => {
|
|
var xhr = new XMLHttpRequest();
|
|
xhr.open('GET', url, false);
|
|
xhr.responseType = 'arraybuffer';
|
|
xhr.send(null);
|
|
return new Uint8Array(/** @type{!ArrayBuffer} */(xhr.response));
|
|
};
|
|
}
|
|
|
|
readAsync = (url, onload, onerror) => {
|
|
var xhr = new XMLHttpRequest();
|
|
xhr.open('GET', url, true);
|
|
xhr.responseType = 'arraybuffer';
|
|
xhr.onload = () => {
|
|
if (xhr.status == 200 || (xhr.status == 0 && xhr.response)) { // file URLs can return 0
|
|
onload(xhr.response);
|
|
return;
|
|
}
|
|
onerror();
|
|
};
|
|
xhr.onerror = onerror;
|
|
xhr.send(null);
|
|
}
|
|
|
|
// end include: web_or_worker_shell_read.js
|
|
}
|
|
|
|
setWindowTitle = (title) => document.title = title;
|
|
} else
|
|
{
|
|
throw new Error('environment detection error');
|
|
}
|
|
|
|
var out = Module['print'] || console.log.bind(console);
|
|
var err = Module['printErr'] || console.warn.bind(console);
|
|
|
|
// Merge back in the overrides
|
|
Object.assign(Module, moduleOverrides);
|
|
// Free the object hierarchy contained in the overrides, this lets the GC
|
|
// reclaim data used e.g. in memoryInitializerRequest, which is a large typed array.
|
|
moduleOverrides = null;
|
|
checkIncomingModuleAPI();
|
|
|
|
// Emit code to handle expected values on the Module object. This applies Module.x
|
|
// to the proper local x. This has two benefits: first, we only emit it if it is
|
|
// expected to arrive, and second, by using a local everywhere else that can be
|
|
// minified.
|
|
|
|
if (Module['arguments']) arguments_ = Module['arguments'];legacyModuleProp('arguments', 'arguments_');
|
|
|
|
if (Module['thisProgram']) thisProgram = Module['thisProgram'];legacyModuleProp('thisProgram', 'thisProgram');
|
|
|
|
if (Module['quit']) quit_ = Module['quit'];legacyModuleProp('quit', 'quit_');
|
|
|
|
// perform assertions in shell.js after we set up out() and err(), as otherwise if an assertion fails it cannot print the message
|
|
// Assertions on removed incoming Module JS APIs.
|
|
assert(typeof Module['memoryInitializerPrefixURL'] == 'undefined', 'Module.memoryInitializerPrefixURL option was removed, use Module.locateFile instead');
|
|
assert(typeof Module['pthreadMainPrefixURL'] == 'undefined', 'Module.pthreadMainPrefixURL option was removed, use Module.locateFile instead');
|
|
assert(typeof Module['cdInitializerPrefixURL'] == 'undefined', 'Module.cdInitializerPrefixURL option was removed, use Module.locateFile instead');
|
|
assert(typeof Module['filePackagePrefixURL'] == 'undefined', 'Module.filePackagePrefixURL option was removed, use Module.locateFile instead');
|
|
assert(typeof Module['read'] == 'undefined', 'Module.read option was removed (modify read_ in JS)');
|
|
assert(typeof Module['readAsync'] == 'undefined', 'Module.readAsync option was removed (modify readAsync in JS)');
|
|
assert(typeof Module['readBinary'] == 'undefined', 'Module.readBinary option was removed (modify readBinary in JS)');
|
|
assert(typeof Module['setWindowTitle'] == 'undefined', 'Module.setWindowTitle option was removed (modify setWindowTitle in JS)');
|
|
assert(typeof Module['TOTAL_MEMORY'] == 'undefined', 'Module.TOTAL_MEMORY has been renamed Module.INITIAL_MEMORY');
|
|
legacyModuleProp('read', 'read_');
|
|
legacyModuleProp('readAsync', 'readAsync');
|
|
legacyModuleProp('readBinary', 'readBinary');
|
|
legacyModuleProp('setWindowTitle', 'setWindowTitle');
|
|
var IDBFS = 'IDBFS is no longer included by default; build with -lidbfs.js';
|
|
var PROXYFS = 'PROXYFS is no longer included by default; build with -lproxyfs.js';
|
|
var WORKERFS = 'WORKERFS is no longer included by default; build with -lworkerfs.js';
|
|
var NODEFS = 'NODEFS is no longer included by default; build with -lnodefs.js';
|
|
|
|
|
|
assert(!ENVIRONMENT_IS_SHELL, "shell environment detected but not enabled at build time. Add 'shell' to `-s ENVIRONMENT` to enable.");
|
|
|
|
|
|
|
|
|
|
var STACK_ALIGN = 16;
|
|
var POINTER_SIZE = 4;
|
|
|
|
function getNativeTypeSize(type) {
|
|
switch (type) {
|
|
case 'i1': case 'i8': return 1;
|
|
case 'i16': return 2;
|
|
case 'i32': return 4;
|
|
case 'i64': return 8;
|
|
case 'float': return 4;
|
|
case 'double': return 8;
|
|
default: {
|
|
if (type[type.length - 1] === '*') {
|
|
return POINTER_SIZE;
|
|
} else if (type[0] === 'i') {
|
|
const bits = Number(type.substr(1));
|
|
assert(bits % 8 === 0, 'getNativeTypeSize invalid bits ' + bits + ', type ' + type);
|
|
return bits / 8;
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
function warnOnce(text) {
|
|
if (!warnOnce.shown) warnOnce.shown = {};
|
|
if (!warnOnce.shown[text]) {
|
|
warnOnce.shown[text] = 1;
|
|
err(text);
|
|
}
|
|
}
|
|
|
|
// include: runtime_functions.js
|
|
|
|
|
|
// Wraps a JS function as a wasm function with a given signature.
|
|
function convertJsFunctionToWasm(func, sig) {
|
|
|
|
// If the type reflection proposal is available, use the new
|
|
// "WebAssembly.Function" constructor.
|
|
// Otherwise, construct a minimal wasm module importing the JS function and
|
|
// re-exporting it.
|
|
if (typeof WebAssembly.Function == "function") {
|
|
var typeNames = {
|
|
'i': 'i32',
|
|
'j': 'i64',
|
|
'f': 'f32',
|
|
'd': 'f64'
|
|
};
|
|
var type = {
|
|
parameters: [],
|
|
results: sig[0] == 'v' ? [] : [typeNames[sig[0]]]
|
|
};
|
|
for (var i = 1; i < sig.length; ++i) {
|
|
type.parameters.push(typeNames[sig[i]]);
|
|
}
|
|
return new WebAssembly.Function(type, func);
|
|
}
|
|
|
|
// The module is static, with the exception of the type section, which is
|
|
// generated based on the signature passed in.
|
|
var typeSection = [
|
|
0x01, // id: section,
|
|
0x00, // length: 0 (placeholder)
|
|
0x01, // count: 1
|
|
0x60, // form: func
|
|
];
|
|
var sigRet = sig.slice(0, 1);
|
|
var sigParam = sig.slice(1);
|
|
var typeCodes = {
|
|
'i': 0x7f, // i32
|
|
'j': 0x7e, // i64
|
|
'f': 0x7d, // f32
|
|
'd': 0x7c, // f64
|
|
};
|
|
|
|
// Parameters, length + signatures
|
|
typeSection.push(sigParam.length);
|
|
for (var i = 0; i < sigParam.length; ++i) {
|
|
typeSection.push(typeCodes[sigParam[i]]);
|
|
}
|
|
|
|
// Return values, length + signatures
|
|
// With no multi-return in MVP, either 0 (void) or 1 (anything else)
|
|
if (sigRet == 'v') {
|
|
typeSection.push(0x00);
|
|
} else {
|
|
typeSection = typeSection.concat([0x01, typeCodes[sigRet]]);
|
|
}
|
|
|
|
// Write the overall length of the type section back into the section header
|
|
// (excepting the 2 bytes for the section id and length)
|
|
typeSection[1] = typeSection.length - 2;
|
|
|
|
// Rest of the module is static
|
|
var bytes = new Uint8Array([
|
|
0x00, 0x61, 0x73, 0x6d, // magic ("\0asm")
|
|
0x01, 0x00, 0x00, 0x00, // version: 1
|
|
].concat(typeSection, [
|
|
0x02, 0x07, // import section
|
|
// (import "e" "f" (func 0 (type 0)))
|
|
0x01, 0x01, 0x65, 0x01, 0x66, 0x00, 0x00,
|
|
0x07, 0x05, // export section
|
|
// (export "f" (func 0 (type 0)))
|
|
0x01, 0x01, 0x66, 0x00, 0x00,
|
|
]));
|
|
|
|
// We can compile this wasm module synchronously because it is very small.
|
|
// This accepts an import (at "e.f"), that it reroutes to an export (at "f")
|
|
var module = new WebAssembly.Module(bytes);
|
|
var instance = new WebAssembly.Instance(module, {
|
|
'e': {
|
|
'f': func
|
|
}
|
|
});
|
|
var wrappedFunc = instance.exports['f'];
|
|
return wrappedFunc;
|
|
}
|
|
|
|
var freeTableIndexes = [];
|
|
|
|
// Weak map of functions in the table to their indexes, created on first use.
|
|
var functionsInTableMap;
|
|
|
|
function getEmptyTableSlot() {
|
|
// Reuse a free index if there is one, otherwise grow.
|
|
if (freeTableIndexes.length) {
|
|
return freeTableIndexes.pop();
|
|
}
|
|
// Grow the table
|
|
try {
|
|
wasmTable.grow(1);
|
|
} catch (err) {
|
|
if (!(err instanceof RangeError)) {
|
|
throw err;
|
|
}
|
|
throw 'Unable to grow wasm table. Set ALLOW_TABLE_GROWTH.';
|
|
}
|
|
return wasmTable.length - 1;
|
|
}
|
|
|
|
function updateTableMap(offset, count) {
|
|
for (var i = offset; i < offset + count; i++) {
|
|
var item = getWasmTableEntry(i);
|
|
// Ignore null values.
|
|
if (item) {
|
|
functionsInTableMap.set(item, i);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Add a function to the table.
|
|
* 'sig' parameter is required if the function being added is a JS function.
|
|
* @param {string=} sig
|
|
*/
|
|
function addFunction(func, sig) {
|
|
assert(typeof func != 'undefined');
|
|
|
|
// Check if the function is already in the table, to ensure each function
|
|
// gets a unique index. First, create the map if this is the first use.
|
|
if (!functionsInTableMap) {
|
|
functionsInTableMap = new WeakMap();
|
|
updateTableMap(0, wasmTable.length);
|
|
}
|
|
if (functionsInTableMap.has(func)) {
|
|
return functionsInTableMap.get(func);
|
|
}
|
|
|
|
// It's not in the table, add it now.
|
|
|
|
var ret = getEmptyTableSlot();
|
|
|
|
// Set the new value.
|
|
try {
|
|
// Attempting to call this with JS function will cause of table.set() to fail
|
|
setWasmTableEntry(ret, func);
|
|
} catch (err) {
|
|
if (!(err instanceof TypeError)) {
|
|
throw err;
|
|
}
|
|
assert(typeof sig != 'undefined', 'Missing signature argument to addFunction: ' + func);
|
|
var wrapped = convertJsFunctionToWasm(func, sig);
|
|
setWasmTableEntry(ret, wrapped);
|
|
}
|
|
|
|
functionsInTableMap.set(func, ret);
|
|
|
|
return ret;
|
|
}
|
|
|
|
function removeFunction(index) {
|
|
functionsInTableMap.delete(getWasmTableEntry(index));
|
|
freeTableIndexes.push(index);
|
|
}
|
|
|
|
// end include: runtime_functions.js
|
|
// include: runtime_debug.js
|
|
|
|
|
|
function legacyModuleProp(prop, newName) {
|
|
if (!Object.getOwnPropertyDescriptor(Module, prop)) {
|
|
Object.defineProperty(Module, prop, {
|
|
configurable: true,
|
|
get: function() {
|
|
abort('Module.' + prop + ' has been replaced with plain ' + newName + ' (the initial value can be provided on Module, but after startup the value is only looked for on a local variable of that name)');
|
|
}
|
|
});
|
|
}
|
|
}
|
|
|
|
function ignoredModuleProp(prop) {
|
|
if (Object.getOwnPropertyDescriptor(Module, prop)) {
|
|
abort('`Module.' + prop + '` was supplied but `' + prop + '` not included in INCOMING_MODULE_JS_API');
|
|
}
|
|
}
|
|
|
|
function unexportedMessage(sym, isFSSybol) {
|
|
var msg = "'" + sym + "' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)";
|
|
if (isFSSybol) {
|
|
msg += '. Alternatively, forcing filesystem support (-s FORCE_FILESYSTEM=1) can export this for you';
|
|
}
|
|
return msg;
|
|
}
|
|
|
|
function unexportedRuntimeSymbol(sym, isFSSybol) {
|
|
if (!Object.getOwnPropertyDescriptor(Module, sym)) {
|
|
Object.defineProperty(Module, sym, {
|
|
configurable: true,
|
|
get: function() {
|
|
abort(unexportedMessage(sym, isFSSybol));
|
|
}
|
|
});
|
|
}
|
|
}
|
|
|
|
function unexportedRuntimeFunction(sym, isFSSybol) {
|
|
if (!Object.getOwnPropertyDescriptor(Module, sym)) {
|
|
Module[sym] = () => abort(unexportedMessage(sym, isFSSybol));
|
|
}
|
|
}
|
|
|
|
// end include: runtime_debug.js
|
|
var tempRet0 = 0;
|
|
var setTempRet0 = (value) => { tempRet0 = value; };
|
|
var getTempRet0 = () => tempRet0;
|
|
|
|
|
|
|
|
// === Preamble library stuff ===
|
|
|
|
// Documentation for the public APIs defined in this file must be updated in:
|
|
// site/source/docs/api_reference/preamble.js.rst
|
|
// A prebuilt local version of the documentation is available at:
|
|
// site/build/text/docs/api_reference/preamble.js.txt
|
|
// You can also build docs locally as HTML or other formats in site/
|
|
// An online HTML version (which may be of a different version of Emscripten)
|
|
// is up at http://kripken.github.io/emscripten-site/docs/api_reference/preamble.js.html
|
|
|
|
var wasmBinary;
|
|
if (Module['wasmBinary']) wasmBinary = Module['wasmBinary'];legacyModuleProp('wasmBinary', 'wasmBinary');
|
|
var noExitRuntime = Module['noExitRuntime'] || true;legacyModuleProp('noExitRuntime', 'noExitRuntime');
|
|
|
|
if (typeof WebAssembly != 'object') {
|
|
abort('no native wasm support detected');
|
|
}
|
|
|
|
// include: runtime_safe_heap.js
|
|
|
|
|
|
// In MINIMAL_RUNTIME, setValue() and getValue() are only available when building with safe heap enabled, for heap safety checking.
|
|
// In traditional runtime, setValue() and getValue() are always available (although their use is highly discouraged due to perf penalties)
|
|
|
|
/** @param {number} ptr
|
|
@param {number} value
|
|
@param {string} type
|
|
@param {number|boolean=} noSafe */
|
|
function setValue(ptr, value, type = 'i8', noSafe) {
|
|
if (type.charAt(type.length-1) === '*') type = 'i32';
|
|
switch (type) {
|
|
case 'i1': HEAP8[((ptr)>>0)] = value; break;
|
|
case 'i8': HEAP8[((ptr)>>0)] = value; break;
|
|
case 'i16': HEAP16[((ptr)>>1)] = value; break;
|
|
case 'i32': HEAP32[((ptr)>>2)] = value; break;
|
|
case 'i64': (tempI64 = [value>>>0,(tempDouble=value,(+(Math.abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? ((Math.min((+(Math.floor((tempDouble)/4294967296.0))), 4294967295.0))|0)>>>0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>0) : 0)],HEAP32[((ptr)>>2)] = tempI64[0],HEAP32[(((ptr)+(4))>>2)] = tempI64[1]); break;
|
|
case 'float': HEAPF32[((ptr)>>2)] = value; break;
|
|
case 'double': HEAPF64[((ptr)>>3)] = value; break;
|
|
default: abort('invalid type for setValue: ' + type);
|
|
}
|
|
}
|
|
|
|
/** @param {number} ptr
|
|
@param {string} type
|
|
@param {number|boolean=} noSafe */
|
|
function getValue(ptr, type = 'i8', noSafe) {
|
|
if (type.charAt(type.length-1) === '*') type = 'i32';
|
|
switch (type) {
|
|
case 'i1': return HEAP8[((ptr)>>0)];
|
|
case 'i8': return HEAP8[((ptr)>>0)];
|
|
case 'i16': return HEAP16[((ptr)>>1)];
|
|
case 'i32': return HEAP32[((ptr)>>2)];
|
|
case 'i64': return HEAP32[((ptr)>>2)];
|
|
case 'float': return HEAPF32[((ptr)>>2)];
|
|
case 'double': return Number(HEAPF64[((ptr)>>3)]);
|
|
default: abort('invalid type for getValue: ' + type);
|
|
}
|
|
return null;
|
|
}
|
|
|
|
// end include: runtime_safe_heap.js
|
|
// Wasm globals
|
|
|
|
var wasmMemory;
|
|
|
|
//========================================
|
|
// Runtime essentials
|
|
//========================================
|
|
|
|
// whether we are quitting the application. no code should run after this.
|
|
// set in exit() and abort()
|
|
var ABORT = false;
|
|
|
|
// set by exit() and abort(). Passed to 'onExit' handler.
|
|
// NOTE: This is also used as the process return code code in shell environments
|
|
// but only when noExitRuntime is false.
|
|
var EXITSTATUS;
|
|
|
|
/** @type {function(*, string=)} */
|
|
function assert(condition, text) {
|
|
if (!condition) {
|
|
abort('Assertion failed' + (text ? ': ' + text : ''));
|
|
}
|
|
}
|
|
|
|
// Returns the C function with a specified identifier (for C++, you need to do manual name mangling)
|
|
function getCFunc(ident) {
|
|
var func = Module['_' + ident]; // closure exported function
|
|
assert(func, 'Cannot call unknown function ' + ident + ', make sure it is exported');
|
|
return func;
|
|
}
|
|
|
|
// C calling interface.
|
|
/** @param {string|null=} returnType
|
|
@param {Array=} argTypes
|
|
@param {Arguments|Array=} args
|
|
@param {Object=} opts */
|
|
function ccall(ident, returnType, argTypes, args, opts) {
|
|
// For fast lookup of conversion functions
|
|
var toC = {
|
|
'string': function(str) {
|
|
var ret = 0;
|
|
if (str !== null && str !== undefined && str !== 0) { // null string
|
|
// at most 4 bytes per UTF-8 code point, +1 for the trailing '\0'
|
|
var len = (str.length << 2) + 1;
|
|
ret = stackAlloc(len);
|
|
stringToUTF8(str, ret, len);
|
|
}
|
|
return ret;
|
|
},
|
|
'array': function(arr) {
|
|
var ret = stackAlloc(arr.length);
|
|
writeArrayToMemory(arr, ret);
|
|
return ret;
|
|
}
|
|
};
|
|
|
|
function convertReturnValue(ret) {
|
|
if (returnType === 'string') return UTF8ToString(ret);
|
|
if (returnType === 'boolean') return Boolean(ret);
|
|
return ret;
|
|
}
|
|
|
|
var func = getCFunc(ident);
|
|
var cArgs = [];
|
|
var stack = 0;
|
|
assert(returnType !== 'array', 'Return type should not be "array".');
|
|
if (args) {
|
|
for (var i = 0; i < args.length; i++) {
|
|
var converter = toC[argTypes[i]];
|
|
if (converter) {
|
|
if (stack === 0) stack = stackSave();
|
|
cArgs[i] = converter(args[i]);
|
|
} else {
|
|
cArgs[i] = args[i];
|
|
}
|
|
}
|
|
}
|
|
var ret = func.apply(null, cArgs);
|
|
function onDone(ret) {
|
|
if (stack !== 0) stackRestore(stack);
|
|
return convertReturnValue(ret);
|
|
}
|
|
|
|
ret = onDone(ret);
|
|
return ret;
|
|
}
|
|
|
|
/** @param {string=} returnType
|
|
@param {Array=} argTypes
|
|
@param {Object=} opts */
|
|
function cwrap(ident, returnType, argTypes, opts) {
|
|
return function() {
|
|
return ccall(ident, returnType, argTypes, arguments, opts);
|
|
}
|
|
}
|
|
|
|
// We used to include malloc/free by default in the past. Show a helpful error in
|
|
// builds with assertions.
|
|
function _free() {
|
|
// Show a helpful error since we used to include free by default in the past.
|
|
abort("free() called but not included in the build - add '_free' to EXPORTED_FUNCTIONS");
|
|
}
|
|
|
|
// include: runtime_legacy.js
|
|
|
|
|
|
var ALLOC_NORMAL = 0; // Tries to use _malloc()
|
|
var ALLOC_STACK = 1; // Lives for the duration of the current function call
|
|
|
|
/**
|
|
* allocate(): This function is no longer used by emscripten but is kept around to avoid
|
|
* breaking external users.
|
|
* You should normally not use allocate(), and instead allocate
|
|
* memory using _malloc()/stackAlloc(), initialize it with
|
|
* setValue(), and so forth.
|
|
* @param {(Uint8Array|Array<number>)} slab: An array of data.
|
|
* @param {number=} allocator : How to allocate memory, see ALLOC_*
|
|
*/
|
|
function allocate(slab, allocator) {
|
|
var ret;
|
|
assert(typeof allocator == 'number', 'allocate no longer takes a type argument')
|
|
assert(typeof slab != 'number', 'allocate no longer takes a number as arg0')
|
|
|
|
if (allocator == ALLOC_STACK) {
|
|
ret = stackAlloc(slab.length);
|
|
} else {
|
|
ret = _malloc(slab.length);
|
|
}
|
|
|
|
if (!slab.subarray && !slab.slice) {
|
|
slab = new Uint8Array(slab);
|
|
}
|
|
HEAPU8.set(slab, ret);
|
|
return ret;
|
|
}
|
|
|
|
// end include: runtime_legacy.js
|
|
// include: runtime_strings.js
|
|
|
|
|
|
// runtime_strings.js: Strings related runtime functions that are part of both MINIMAL_RUNTIME and regular runtime.
|
|
|
|
// Given a pointer 'ptr' to a null-terminated UTF8-encoded string in the given array that contains uint8 values, returns
|
|
// a copy of that string as a Javascript String object.
|
|
|
|
var UTF8Decoder = typeof TextDecoder != 'undefined' ? new TextDecoder('utf8') : undefined;
|
|
|
|
/**
|
|
* @param {number} idx
|
|
* @param {number=} maxBytesToRead
|
|
* @return {string}
|
|
*/
|
|
function UTF8ArrayToString(heap, idx, maxBytesToRead) {
|
|
var endIdx = idx + maxBytesToRead;
|
|
var endPtr = idx;
|
|
// TextDecoder needs to know the byte length in advance, it doesn't stop on null terminator by itself.
|
|
// Also, use the length info to avoid running tiny strings through TextDecoder, since .subarray() allocates garbage.
|
|
// (As a tiny code save trick, compare endPtr against endIdx using a negation, so that undefined means Infinity)
|
|
while (heap[endPtr] && !(endPtr >= endIdx)) ++endPtr;
|
|
|
|
if (endPtr - idx > 16 && heap.subarray && UTF8Decoder) {
|
|
return UTF8Decoder.decode(heap.subarray(idx, endPtr));
|
|
} else {
|
|
var str = '';
|
|
// If building with TextDecoder, we have already computed the string length above, so test loop end condition against that
|
|
while (idx < endPtr) {
|
|
// For UTF8 byte structure, see:
|
|
// http://en.wikipedia.org/wiki/UTF-8#Description
|
|
// https://www.ietf.org/rfc/rfc2279.txt
|
|
// https://tools.ietf.org/html/rfc3629
|
|
var u0 = heap[idx++];
|
|
if (!(u0 & 0x80)) { str += String.fromCharCode(u0); continue; }
|
|
var u1 = heap[idx++] & 63;
|
|
if ((u0 & 0xE0) == 0xC0) { str += String.fromCharCode(((u0 & 31) << 6) | u1); continue; }
|
|
var u2 = heap[idx++] & 63;
|
|
if ((u0 & 0xF0) == 0xE0) {
|
|
u0 = ((u0 & 15) << 12) | (u1 << 6) | u2;
|
|
} else {
|
|
if ((u0 & 0xF8) != 0xF0) warnOnce('Invalid UTF-8 leading byte 0x' + u0.toString(16) + ' encountered when deserializing a UTF-8 string in wasm memory to a JS string!');
|
|
u0 = ((u0 & 7) << 18) | (u1 << 12) | (u2 << 6) | (heap[idx++] & 63);
|
|
}
|
|
|
|
if (u0 < 0x10000) {
|
|
str += String.fromCharCode(u0);
|
|
} else {
|
|
var ch = u0 - 0x10000;
|
|
str += String.fromCharCode(0xD800 | (ch >> 10), 0xDC00 | (ch & 0x3FF));
|
|
}
|
|
}
|
|
}
|
|
return str;
|
|
}
|
|
|
|
// Given a pointer 'ptr' to a null-terminated UTF8-encoded string in the emscripten HEAP, returns a
|
|
// copy of that string as a Javascript String object.
|
|
// maxBytesToRead: an optional length that specifies the maximum number of bytes to read. You can omit
|
|
// this parameter to scan the string until the first \0 byte. If maxBytesToRead is
|
|
// passed, and the string at [ptr, ptr+maxBytesToReadr[ contains a null byte in the
|
|
// middle, then the string will cut short at that byte index (i.e. maxBytesToRead will
|
|
// not produce a string of exact length [ptr, ptr+maxBytesToRead[)
|
|
// N.B. mixing frequent uses of UTF8ToString() with and without maxBytesToRead may
|
|
// throw JS JIT optimizations off, so it is worth to consider consistently using one
|
|
// style or the other.
|
|
/**
|
|
* @param {number} ptr
|
|
* @param {number=} maxBytesToRead
|
|
* @return {string}
|
|
*/
|
|
function UTF8ToString(ptr, maxBytesToRead) {
|
|
;
|
|
return ptr ? UTF8ArrayToString(HEAPU8, ptr, maxBytesToRead) : '';
|
|
}
|
|
|
|
// Copies the given Javascript String object 'str' to the given byte array at address 'outIdx',
|
|
// encoded in UTF8 form and null-terminated. The copy will require at most str.length*4+1 bytes of space in the HEAP.
|
|
// Use the function lengthBytesUTF8 to compute the exact number of bytes (excluding null terminator) that this function will write.
|
|
// Parameters:
|
|
// str: the Javascript string to copy.
|
|
// heap: the array to copy to. Each index in this array is assumed to be one 8-byte element.
|
|
// outIdx: The starting offset in the array to begin the copying.
|
|
// maxBytesToWrite: The maximum number of bytes this function can write to the array.
|
|
// This count should include the null terminator,
|
|
// i.e. if maxBytesToWrite=1, only the null terminator will be written and nothing else.
|
|
// maxBytesToWrite=0 does not write any bytes to the output, not even the null terminator.
|
|
// Returns the number of bytes written, EXCLUDING the null terminator.
|
|
|
|
function stringToUTF8Array(str, heap, outIdx, maxBytesToWrite) {
|
|
if (!(maxBytesToWrite > 0)) // Parameter maxBytesToWrite is not optional. Negative values, 0, null, undefined and false each don't write out any bytes.
|
|
return 0;
|
|
|
|
var startIdx = outIdx;
|
|
var endIdx = outIdx + maxBytesToWrite - 1; // -1 for string null terminator.
|
|
for (var i = 0; i < str.length; ++i) {
|
|
// Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code unit, not a Unicode code point of the character! So decode UTF16->UTF32->UTF8.
|
|
// See http://unicode.org/faq/utf_bom.html#utf16-3
|
|
// For UTF8 byte structure, see http://en.wikipedia.org/wiki/UTF-8#Description and https://www.ietf.org/rfc/rfc2279.txt and https://tools.ietf.org/html/rfc3629
|
|
var u = str.charCodeAt(i); // possibly a lead surrogate
|
|
if (u >= 0xD800 && u <= 0xDFFF) {
|
|
var u1 = str.charCodeAt(++i);
|
|
u = 0x10000 + ((u & 0x3FF) << 10) | (u1 & 0x3FF);
|
|
}
|
|
if (u <= 0x7F) {
|
|
if (outIdx >= endIdx) break;
|
|
heap[outIdx++] = u;
|
|
} else if (u <= 0x7FF) {
|
|
if (outIdx + 1 >= endIdx) break;
|
|
heap[outIdx++] = 0xC0 | (u >> 6);
|
|
heap[outIdx++] = 0x80 | (u & 63);
|
|
} else if (u <= 0xFFFF) {
|
|
if (outIdx + 2 >= endIdx) break;
|
|
heap[outIdx++] = 0xE0 | (u >> 12);
|
|
heap[outIdx++] = 0x80 | ((u >> 6) & 63);
|
|
heap[outIdx++] = 0x80 | (u & 63);
|
|
} else {
|
|
if (outIdx + 3 >= endIdx) break;
|
|
if (u > 0x10FFFF) warnOnce('Invalid Unicode code point 0x' + u.toString(16) + ' encountered when serializing a JS string to a UTF-8 string in wasm memory! (Valid unicode code points should be in range 0-0x10FFFF).');
|
|
heap[outIdx++] = 0xF0 | (u >> 18);
|
|
heap[outIdx++] = 0x80 | ((u >> 12) & 63);
|
|
heap[outIdx++] = 0x80 | ((u >> 6) & 63);
|
|
heap[outIdx++] = 0x80 | (u & 63);
|
|
}
|
|
}
|
|
// Null-terminate the pointer to the buffer.
|
|
heap[outIdx] = 0;
|
|
return outIdx - startIdx;
|
|
}
|
|
|
|
// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr',
|
|
// null-terminated and encoded in UTF8 form. The copy will require at most str.length*4+1 bytes of space in the HEAP.
|
|
// Use the function lengthBytesUTF8 to compute the exact number of bytes (excluding null terminator) that this function will write.
|
|
// Returns the number of bytes written, EXCLUDING the null terminator.
|
|
|
|
function stringToUTF8(str, outPtr, maxBytesToWrite) {
|
|
assert(typeof maxBytesToWrite == 'number', 'stringToUTF8(str, outPtr, maxBytesToWrite) is missing the third parameter that specifies the length of the output buffer!');
|
|
return stringToUTF8Array(str, HEAPU8,outPtr, maxBytesToWrite);
|
|
}
|
|
|
|
// Returns the number of bytes the given Javascript string takes if encoded as a UTF8 byte array, EXCLUDING the null terminator byte.
|
|
function lengthBytesUTF8(str) {
|
|
var len = 0;
|
|
for (var i = 0; i < str.length; ++i) {
|
|
// Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code unit, not a Unicode code point of the character! So decode UTF16->UTF32->UTF8.
|
|
// See http://unicode.org/faq/utf_bom.html#utf16-3
|
|
var u = str.charCodeAt(i); // possibly a lead surrogate
|
|
if (u >= 0xD800 && u <= 0xDFFF) u = 0x10000 + ((u & 0x3FF) << 10) | (str.charCodeAt(++i) & 0x3FF);
|
|
if (u <= 0x7F) ++len;
|
|
else if (u <= 0x7FF) len += 2;
|
|
else if (u <= 0xFFFF) len += 3;
|
|
else len += 4;
|
|
}
|
|
return len;
|
|
}
|
|
|
|
// end include: runtime_strings.js
|
|
// include: runtime_strings_extra.js
|
|
|
|
|
|
// runtime_strings_extra.js: Strings related runtime functions that are available only in regular runtime.
|
|
|
|
// Given a pointer 'ptr' to a null-terminated ASCII-encoded string in the emscripten HEAP, returns
|
|
// a copy of that string as a Javascript String object.
|
|
|
|
function AsciiToString(ptr) {
|
|
var str = '';
|
|
while (1) {
|
|
var ch = HEAPU8[((ptr++)>>0)];
|
|
if (!ch) return str;
|
|
str += String.fromCharCode(ch);
|
|
}
|
|
}
|
|
|
|
// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr',
|
|
// null-terminated and encoded in ASCII form. The copy will require at most str.length+1 bytes of space in the HEAP.
|
|
|
|
function stringToAscii(str, outPtr) {
|
|
return writeAsciiToMemory(str, outPtr, false);
|
|
}
|
|
|
|
// Given a pointer 'ptr' to a null-terminated UTF16LE-encoded string in the emscripten HEAP, returns
|
|
// a copy of that string as a Javascript String object.
|
|
|
|
var UTF16Decoder = typeof TextDecoder != 'undefined' ? new TextDecoder('utf-16le') : undefined;
|
|
|
|
function UTF16ToString(ptr, maxBytesToRead) {
|
|
assert(ptr % 2 == 0, 'Pointer passed to UTF16ToString must be aligned to two bytes!');
|
|
var endPtr = ptr;
|
|
// TextDecoder needs to know the byte length in advance, it doesn't stop on null terminator by itself.
|
|
// Also, use the length info to avoid running tiny strings through TextDecoder, since .subarray() allocates garbage.
|
|
var idx = endPtr >> 1;
|
|
var maxIdx = idx + maxBytesToRead / 2;
|
|
// If maxBytesToRead is not passed explicitly, it will be undefined, and this
|
|
// will always evaluate to true. This saves on code size.
|
|
while (!(idx >= maxIdx) && HEAPU16[idx]) ++idx;
|
|
endPtr = idx << 1;
|
|
|
|
if (endPtr - ptr > 32 && UTF16Decoder) {
|
|
return UTF16Decoder.decode(HEAPU8.subarray(ptr, endPtr));
|
|
} else {
|
|
var str = '';
|
|
|
|
// If maxBytesToRead is not passed explicitly, it will be undefined, and the for-loop's condition
|
|
// will always evaluate to true. The loop is then terminated on the first null char.
|
|
for (var i = 0; !(i >= maxBytesToRead / 2); ++i) {
|
|
var codeUnit = HEAP16[(((ptr)+(i*2))>>1)];
|
|
if (codeUnit == 0) break;
|
|
// fromCharCode constructs a character from a UTF-16 code unit, so we can pass the UTF16 string right through.
|
|
str += String.fromCharCode(codeUnit);
|
|
}
|
|
|
|
return str;
|
|
}
|
|
}
|
|
|
|
// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr',
|
|
// null-terminated and encoded in UTF16 form. The copy will require at most str.length*4+2 bytes of space in the HEAP.
|
|
// Use the function lengthBytesUTF16() to compute the exact number of bytes (excluding null terminator) that this function will write.
|
|
// Parameters:
|
|
// str: the Javascript string to copy.
|
|
// outPtr: Byte address in Emscripten HEAP where to write the string to.
|
|
// maxBytesToWrite: The maximum number of bytes this function can write to the array. This count should include the null
|
|
// terminator, i.e. if maxBytesToWrite=2, only the null terminator will be written and nothing else.
|
|
// maxBytesToWrite<2 does not write any bytes to the output, not even the null terminator.
|
|
// Returns the number of bytes written, EXCLUDING the null terminator.
|
|
|
|
function stringToUTF16(str, outPtr, maxBytesToWrite) {
|
|
assert(outPtr % 2 == 0, 'Pointer passed to stringToUTF16 must be aligned to two bytes!');
|
|
assert(typeof maxBytesToWrite == 'number', 'stringToUTF16(str, outPtr, maxBytesToWrite) is missing the third parameter that specifies the length of the output buffer!');
|
|
// Backwards compatibility: if max bytes is not specified, assume unsafe unbounded write is allowed.
|
|
if (maxBytesToWrite === undefined) {
|
|
maxBytesToWrite = 0x7FFFFFFF;
|
|
}
|
|
if (maxBytesToWrite < 2) return 0;
|
|
maxBytesToWrite -= 2; // Null terminator.
|
|
var startPtr = outPtr;
|
|
var numCharsToWrite = (maxBytesToWrite < str.length*2) ? (maxBytesToWrite / 2) : str.length;
|
|
for (var i = 0; i < numCharsToWrite; ++i) {
|
|
// charCodeAt returns a UTF-16 encoded code unit, so it can be directly written to the HEAP.
|
|
var codeUnit = str.charCodeAt(i); // possibly a lead surrogate
|
|
HEAP16[((outPtr)>>1)] = codeUnit;
|
|
outPtr += 2;
|
|
}
|
|
// Null-terminate the pointer to the HEAP.
|
|
HEAP16[((outPtr)>>1)] = 0;
|
|
return outPtr - startPtr;
|
|
}
|
|
|
|
// Returns the number of bytes the given Javascript string takes if encoded as a UTF16 byte array, EXCLUDING the null terminator byte.
|
|
|
|
function lengthBytesUTF16(str) {
|
|
return str.length*2;
|
|
}
|
|
|
|
function UTF32ToString(ptr, maxBytesToRead) {
|
|
assert(ptr % 4 == 0, 'Pointer passed to UTF32ToString must be aligned to four bytes!');
|
|
var i = 0;
|
|
|
|
var str = '';
|
|
// If maxBytesToRead is not passed explicitly, it will be undefined, and this
|
|
// will always evaluate to true. This saves on code size.
|
|
while (!(i >= maxBytesToRead / 4)) {
|
|
var utf32 = HEAP32[(((ptr)+(i*4))>>2)];
|
|
if (utf32 == 0) break;
|
|
++i;
|
|
// Gotcha: fromCharCode constructs a character from a UTF-16 encoded code (pair), not from a Unicode code point! So encode the code point to UTF-16 for constructing.
|
|
// See http://unicode.org/faq/utf_bom.html#utf16-3
|
|
if (utf32 >= 0x10000) {
|
|
var ch = utf32 - 0x10000;
|
|
str += String.fromCharCode(0xD800 | (ch >> 10), 0xDC00 | (ch & 0x3FF));
|
|
} else {
|
|
str += String.fromCharCode(utf32);
|
|
}
|
|
}
|
|
return str;
|
|
}
|
|
|
|
// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr',
|
|
// null-terminated and encoded in UTF32 form. The copy will require at most str.length*4+4 bytes of space in the HEAP.
|
|
// Use the function lengthBytesUTF32() to compute the exact number of bytes (excluding null terminator) that this function will write.
|
|
// Parameters:
|
|
// str: the Javascript string to copy.
|
|
// outPtr: Byte address in Emscripten HEAP where to write the string to.
|
|
// maxBytesToWrite: The maximum number of bytes this function can write to the array. This count should include the null
|
|
// terminator, i.e. if maxBytesToWrite=4, only the null terminator will be written and nothing else.
|
|
// maxBytesToWrite<4 does not write any bytes to the output, not even the null terminator.
|
|
// Returns the number of bytes written, EXCLUDING the null terminator.
|
|
|
|
function stringToUTF32(str, outPtr, maxBytesToWrite) {
|
|
assert(outPtr % 4 == 0, 'Pointer passed to stringToUTF32 must be aligned to four bytes!');
|
|
assert(typeof maxBytesToWrite == 'number', 'stringToUTF32(str, outPtr, maxBytesToWrite) is missing the third parameter that specifies the length of the output buffer!');
|
|
// Backwards compatibility: if max bytes is not specified, assume unsafe unbounded write is allowed.
|
|
if (maxBytesToWrite === undefined) {
|
|
maxBytesToWrite = 0x7FFFFFFF;
|
|
}
|
|
if (maxBytesToWrite < 4) return 0;
|
|
var startPtr = outPtr;
|
|
var endPtr = startPtr + maxBytesToWrite - 4;
|
|
for (var i = 0; i < str.length; ++i) {
|
|
// Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code unit, not a Unicode code point of the character! We must decode the string to UTF-32 to the heap.
|
|
// See http://unicode.org/faq/utf_bom.html#utf16-3
|
|
var codeUnit = str.charCodeAt(i); // possibly a lead surrogate
|
|
if (codeUnit >= 0xD800 && codeUnit <= 0xDFFF) {
|
|
var trailSurrogate = str.charCodeAt(++i);
|
|
codeUnit = 0x10000 + ((codeUnit & 0x3FF) << 10) | (trailSurrogate & 0x3FF);
|
|
}
|
|
HEAP32[((outPtr)>>2)] = codeUnit;
|
|
outPtr += 4;
|
|
if (outPtr + 4 > endPtr) break;
|
|
}
|
|
// Null-terminate the pointer to the HEAP.
|
|
HEAP32[((outPtr)>>2)] = 0;
|
|
return outPtr - startPtr;
|
|
}
|
|
|
|
// Returns the number of bytes the given Javascript string takes if encoded as a UTF16 byte array, EXCLUDING the null terminator byte.
|
|
|
|
function lengthBytesUTF32(str) {
|
|
var len = 0;
|
|
for (var i = 0; i < str.length; ++i) {
|
|
// Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code unit, not a Unicode code point of the character! We must decode the string to UTF-32 to the heap.
|
|
// See http://unicode.org/faq/utf_bom.html#utf16-3
|
|
var codeUnit = str.charCodeAt(i);
|
|
if (codeUnit >= 0xD800 && codeUnit <= 0xDFFF) ++i; // possibly a lead surrogate, so skip over the tail surrogate.
|
|
len += 4;
|
|
}
|
|
|
|
return len;
|
|
}
|
|
|
|
// Allocate heap space for a JS string, and write it there.
|
|
// It is the responsibility of the caller to free() that memory.
|
|
function allocateUTF8(str) {
|
|
var size = lengthBytesUTF8(str) + 1;
|
|
var ret = _malloc(size);
|
|
if (ret) stringToUTF8Array(str, HEAP8, ret, size);
|
|
return ret;
|
|
}
|
|
|
|
// Allocate stack space for a JS string, and write it there.
|
|
function allocateUTF8OnStack(str) {
|
|
var size = lengthBytesUTF8(str) + 1;
|
|
var ret = stackAlloc(size);
|
|
stringToUTF8Array(str, HEAP8, ret, size);
|
|
return ret;
|
|
}
|
|
|
|
// Deprecated: This function should not be called because it is unsafe and does not provide
|
|
// a maximum length limit of how many bytes it is allowed to write. Prefer calling the
|
|
// function stringToUTF8Array() instead, which takes in a maximum length that can be used
|
|
// to be secure from out of bounds writes.
|
|
/** @deprecated
|
|
@param {boolean=} dontAddNull */
|
|
function writeStringToMemory(string, buffer, dontAddNull) {
|
|
warnOnce('writeStringToMemory is deprecated and should not be called! Use stringToUTF8() instead!');
|
|
|
|
var /** @type {number} */ lastChar, /** @type {number} */ end;
|
|
if (dontAddNull) {
|
|
// stringToUTF8Array always appends null. If we don't want to do that, remember the
|
|
// character that existed at the location where the null will be placed, and restore
|
|
// that after the write (below).
|
|
end = buffer + lengthBytesUTF8(string);
|
|
lastChar = HEAP8[end];
|
|
}
|
|
stringToUTF8(string, buffer, Infinity);
|
|
if (dontAddNull) HEAP8[end] = lastChar; // Restore the value under the null character.
|
|
}
|
|
|
|
function writeArrayToMemory(array, buffer) {
|
|
assert(array.length >= 0, 'writeArrayToMemory array must have a length (should be an array or typed array)')
|
|
HEAP8.set(array, buffer);
|
|
}
|
|
|
|
/** @param {boolean=} dontAddNull */
|
|
function writeAsciiToMemory(str, buffer, dontAddNull) {
|
|
for (var i = 0; i < str.length; ++i) {
|
|
assert(str.charCodeAt(i) === (str.charCodeAt(i) & 0xff));
|
|
HEAP8[((buffer++)>>0)] = str.charCodeAt(i);
|
|
}
|
|
// Null-terminate the pointer to the HEAP.
|
|
if (!dontAddNull) HEAP8[((buffer)>>0)] = 0;
|
|
}
|
|
|
|
// end include: runtime_strings_extra.js
|
|
// Memory management
|
|
|
|
var HEAP,
|
|
/** @type {!ArrayBuffer} */
|
|
buffer,
|
|
/** @type {!Int8Array} */
|
|
HEAP8,
|
|
/** @type {!Uint8Array} */
|
|
HEAPU8,
|
|
/** @type {!Int16Array} */
|
|
HEAP16,
|
|
/** @type {!Uint16Array} */
|
|
HEAPU16,
|
|
/** @type {!Int32Array} */
|
|
HEAP32,
|
|
/** @type {!Uint32Array} */
|
|
HEAPU32,
|
|
/** @type {!Float32Array} */
|
|
HEAPF32,
|
|
/** @type {!Float64Array} */
|
|
HEAPF64;
|
|
|
|
function updateGlobalBufferAndViews(buf) {
|
|
buffer = buf;
|
|
Module['HEAP8'] = HEAP8 = new Int8Array(buf);
|
|
Module['HEAP16'] = HEAP16 = new Int16Array(buf);
|
|
Module['HEAP32'] = HEAP32 = new Int32Array(buf);
|
|
Module['HEAPU8'] = HEAPU8 = new Uint8Array(buf);
|
|
Module['HEAPU16'] = HEAPU16 = new Uint16Array(buf);
|
|
Module['HEAPU32'] = HEAPU32 = new Uint32Array(buf);
|
|
Module['HEAPF32'] = HEAPF32 = new Float32Array(buf);
|
|
Module['HEAPF64'] = HEAPF64 = new Float64Array(buf);
|
|
}
|
|
|
|
var TOTAL_STACK = 5242880;
|
|
if (Module['TOTAL_STACK']) assert(TOTAL_STACK === Module['TOTAL_STACK'], 'the stack size can no longer be determined at runtime')
|
|
|
|
var INITIAL_MEMORY = Module['INITIAL_MEMORY'] || 16777216;legacyModuleProp('INITIAL_MEMORY', 'INITIAL_MEMORY');
|
|
|
|
assert(INITIAL_MEMORY >= TOTAL_STACK, 'INITIAL_MEMORY should be larger than TOTAL_STACK, was ' + INITIAL_MEMORY + '! (TOTAL_STACK=' + TOTAL_STACK + ')');
|
|
|
|
// check for full engine support (use string 'subarray' to avoid closure compiler confusion)
|
|
assert(typeof Int32Array != 'undefined' && typeof Float64Array !== 'undefined' && Int32Array.prototype.subarray != undefined && Int32Array.prototype.set != undefined,
|
|
'JS engine does not provide full typed array support');
|
|
|
|
// If memory is defined in wasm, the user can't provide it.
|
|
assert(!Module['wasmMemory'], 'Use of `wasmMemory` detected. Use -s IMPORTED_MEMORY to define wasmMemory externally');
|
|
assert(INITIAL_MEMORY == 16777216, 'Detected runtime INITIAL_MEMORY setting. Use -s IMPORTED_MEMORY to define wasmMemory dynamically');
|
|
|
|
// include: runtime_init_table.js
|
|
// In regular non-RELOCATABLE mode the table is exported
|
|
// from the wasm module and this will be assigned once
|
|
// the exports are available.
|
|
var wasmTable;
|
|
|
|
// end include: runtime_init_table.js
|
|
// include: runtime_stack_check.js
|
|
|
|
|
|
// Initializes the stack cookie. Called at the startup of main and at the startup of each thread in pthreads mode.
|
|
function writeStackCookie() {
|
|
var max = _emscripten_stack_get_end();
|
|
assert((max & 3) == 0);
|
|
// The stack grows downwards
|
|
HEAP32[((max + 4)>>2)] = 0x2135467;
|
|
HEAP32[((max + 8)>>2)] = 0x89BACDFE;
|
|
// Also test the global address 0 for integrity.
|
|
HEAP32[0] = 0x63736d65; /* 'emsc' */
|
|
}
|
|
|
|
function checkStackCookie() {
|
|
if (ABORT) return;
|
|
var max = _emscripten_stack_get_end();
|
|
var cookie1 = HEAPU32[((max + 4)>>2)];
|
|
var cookie2 = HEAPU32[((max + 8)>>2)];
|
|
if (cookie1 != 0x2135467 || cookie2 != 0x89BACDFE) {
|
|
abort('Stack overflow! Stack cookie has been overwritten, expected hex dwords 0x89BACDFE and 0x2135467, but received 0x' + cookie2.toString(16) + ' 0x' + cookie1.toString(16));
|
|
}
|
|
// Also test the global address 0 for integrity.
|
|
if (HEAP32[0] !== 0x63736d65 /* 'emsc' */) abort('Runtime error: The application has corrupted its heap memory area (address zero)!');
|
|
}
|
|
|
|
// end include: runtime_stack_check.js
|
|
// include: runtime_assertions.js
|
|
|
|
|
|
// Endianness check
|
|
(function() {
|
|
var h16 = new Int16Array(1);
|
|
var h8 = new Int8Array(h16.buffer);
|
|
h16[0] = 0x6373;
|
|
if (h8[0] !== 0x73 || h8[1] !== 0x63) throw 'Runtime error: expected the system to be little-endian! (Run with -s SUPPORT_BIG_ENDIAN=1 to bypass)';
|
|
})();
|
|
|
|
// end include: runtime_assertions.js
|
|
var __ATPRERUN__ = []; // functions called before the runtime is initialized
|
|
var __ATINIT__ = []; // functions called during startup
|
|
var __ATMAIN__ = []; // functions called when main() is to be run
|
|
var __ATEXIT__ = []; // functions called during shutdown
|
|
var __ATPOSTRUN__ = []; // functions called after the main() is called
|
|
|
|
var runtimeInitialized = false;
|
|
var runtimeExited = false;
|
|
var runtimeKeepaliveCounter = 0;
|
|
|
|
function keepRuntimeAlive() {
|
|
return noExitRuntime || runtimeKeepaliveCounter > 0;
|
|
}
|
|
|
|
function preRun() {
|
|
|
|
if (Module['preRun']) {
|
|
if (typeof Module['preRun'] == 'function') Module['preRun'] = [Module['preRun']];
|
|
while (Module['preRun'].length) {
|
|
addOnPreRun(Module['preRun'].shift());
|
|
}
|
|
}
|
|
|
|
callRuntimeCallbacks(__ATPRERUN__);
|
|
}
|
|
|
|
function initRuntime() {
|
|
checkStackCookie();
|
|
assert(!runtimeInitialized);
|
|
runtimeInitialized = true;
|
|
|
|
|
|
if (!Module["noFSInit"] && !FS.init.initialized)
|
|
FS.init();
|
|
FS.ignorePermissions = false;
|
|
|
|
TTY.init();
|
|
callRuntimeCallbacks(__ATINIT__);
|
|
}
|
|
|
|
function preMain() {
|
|
checkStackCookie();
|
|
|
|
callRuntimeCallbacks(__ATMAIN__);
|
|
}
|
|
|
|
function exitRuntime() {
|
|
checkStackCookie();
|
|
runtimeExited = true;
|
|
}
|
|
|
|
function postRun() {
|
|
checkStackCookie();
|
|
|
|
if (Module['postRun']) {
|
|
if (typeof Module['postRun'] == 'function') Module['postRun'] = [Module['postRun']];
|
|
while (Module['postRun'].length) {
|
|
addOnPostRun(Module['postRun'].shift());
|
|
}
|
|
}
|
|
|
|
callRuntimeCallbacks(__ATPOSTRUN__);
|
|
}
|
|
|
|
function addOnPreRun(cb) {
|
|
__ATPRERUN__.unshift(cb);
|
|
}
|
|
|
|
function addOnInit(cb) {
|
|
__ATINIT__.unshift(cb);
|
|
}
|
|
|
|
function addOnPreMain(cb) {
|
|
__ATMAIN__.unshift(cb);
|
|
}
|
|
|
|
function addOnExit(cb) {
|
|
}
|
|
|
|
function addOnPostRun(cb) {
|
|
__ATPOSTRUN__.unshift(cb);
|
|
}
|
|
|
|
// include: runtime_math.js
|
|
|
|
|
|
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/imul
|
|
|
|
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/fround
|
|
|
|
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/clz32
|
|
|
|
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/trunc
|
|
|
|
assert(Math.imul, 'This browser does not support Math.imul(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill');
|
|
assert(Math.fround, 'This browser does not support Math.fround(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill');
|
|
assert(Math.clz32, 'This browser does not support Math.clz32(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill');
|
|
assert(Math.trunc, 'This browser does not support Math.trunc(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill');
|
|
|
|
// end include: runtime_math.js
|
|
// A counter of dependencies for calling run(). If we need to
|
|
// do asynchronous work before running, increment this and
|
|
// decrement it. Incrementing must happen in a place like
|
|
// Module.preRun (used by emcc to add file preloading).
|
|
// Note that you can add dependencies in preRun, even though
|
|
// it happens right before run - run will be postponed until
|
|
// the dependencies are met.
|
|
var runDependencies = 0;
|
|
var runDependencyWatcher = null;
|
|
var dependenciesFulfilled = null; // overridden to take different actions when all run dependencies are fulfilled
|
|
var runDependencyTracking = {};
|
|
|
|
function getUniqueRunDependency(id) {
|
|
var orig = id;
|
|
while (1) {
|
|
if (!runDependencyTracking[id]) return id;
|
|
id = orig + Math.random();
|
|
}
|
|
}
|
|
|
|
function addRunDependency(id) {
|
|
runDependencies++;
|
|
|
|
if (Module['monitorRunDependencies']) {
|
|
Module['monitorRunDependencies'](runDependencies);
|
|
}
|
|
|
|
if (id) {
|
|
assert(!runDependencyTracking[id]);
|
|
runDependencyTracking[id] = 1;
|
|
if (runDependencyWatcher === null && typeof setInterval != 'undefined') {
|
|
// Check for missing dependencies every few seconds
|
|
runDependencyWatcher = setInterval(function() {
|
|
if (ABORT) {
|
|
clearInterval(runDependencyWatcher);
|
|
runDependencyWatcher = null;
|
|
return;
|
|
}
|
|
var shown = false;
|
|
for (var dep in runDependencyTracking) {
|
|
if (!shown) {
|
|
shown = true;
|
|
err('still waiting on run dependencies:');
|
|
}
|
|
err('dependency: ' + dep);
|
|
}
|
|
if (shown) {
|
|
err('(end of list)');
|
|
}
|
|
}, 10000);
|
|
}
|
|
} else {
|
|
err('warning: run dependency added without ID');
|
|
}
|
|
}
|
|
|
|
function removeRunDependency(id) {
|
|
runDependencies--;
|
|
|
|
if (Module['monitorRunDependencies']) {
|
|
Module['monitorRunDependencies'](runDependencies);
|
|
}
|
|
|
|
if (id) {
|
|
assert(runDependencyTracking[id]);
|
|
delete runDependencyTracking[id];
|
|
} else {
|
|
err('warning: run dependency removed without ID');
|
|
}
|
|
if (runDependencies == 0) {
|
|
if (runDependencyWatcher !== null) {
|
|
clearInterval(runDependencyWatcher);
|
|
runDependencyWatcher = null;
|
|
}
|
|
if (dependenciesFulfilled) {
|
|
var callback = dependenciesFulfilled;
|
|
dependenciesFulfilled = null;
|
|
callback(); // can add another dependenciesFulfilled
|
|
}
|
|
}
|
|
}
|
|
|
|
Module["preloadedImages"] = {}; // maps url to image data
|
|
Module["preloadedAudios"] = {}; // maps url to audio data
|
|
|
|
/** @param {string|number=} what */
|
|
function abort(what) {
|
|
{
|
|
if (Module['onAbort']) {
|
|
Module['onAbort'](what);
|
|
}
|
|
}
|
|
|
|
what = 'Aborted(' + what + ')';
|
|
// TODO(sbc): Should we remove printing and leave it up to whoever
|
|
// catches the exception?
|
|
err(what);
|
|
|
|
ABORT = true;
|
|
EXITSTATUS = 1;
|
|
|
|
// Use a wasm runtime error, because a JS error might be seen as a foreign
|
|
// exception, which means we'd run destructors on it. We need the error to
|
|
// simply make the program stop.
|
|
|
|
// Suppress closure compiler warning here. Closure compiler's builtin extern
|
|
// defintion for WebAssembly.RuntimeError claims it takes no arguments even
|
|
// though it can.
|
|
// TODO(https://github.com/google/closure-compiler/pull/3913): Remove if/when upstream closure gets fixed.
|
|
|
|
/** @suppress {checkTypes} */
|
|
var e = new WebAssembly.RuntimeError(what);
|
|
|
|
// Throw the error whether or not MODULARIZE is set because abort is used
|
|
// in code paths apart from instantiation where an exception is expected
|
|
// to be thrown when abort is called.
|
|
throw e;
|
|
}
|
|
|
|
// {{MEM_INITIALIZER}}
|
|
|
|
// include: memoryprofiler.js
|
|
|
|
|
|
// end include: memoryprofiler.js
|
|
// include: URIUtils.js
|
|
|
|
|
|
// Prefix of data URIs emitted by SINGLE_FILE and related options.
|
|
var dataURIPrefix = 'data:application/octet-stream;base64,';
|
|
|
|
// Indicates whether filename is a base64 data URI.
|
|
function isDataURI(filename) {
|
|
// Prefix of data URIs emitted by SINGLE_FILE and related options.
|
|
return filename.startsWith(dataURIPrefix);
|
|
}
|
|
|
|
// Indicates whether filename is delivered via file protocol (as opposed to http/https)
|
|
function isFileURI(filename) {
|
|
return filename.startsWith('file://');
|
|
}
|
|
|
|
// end include: URIUtils.js
|
|
/** @param {boolean=} fixedasm */
|
|
function createExportWrapper(name, fixedasm) {
|
|
return function() {
|
|
var displayName = name;
|
|
var asm = fixedasm;
|
|
if (!fixedasm) {
|
|
asm = Module['asm'];
|
|
}
|
|
assert(runtimeInitialized, 'native function `' + displayName + '` called before runtime initialization');
|
|
assert(!runtimeExited, 'native function `' + displayName + '` called after runtime exit (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
|
|
if (!asm[name]) {
|
|
assert(asm[name], 'exported native function `' + displayName + '` not found');
|
|
}
|
|
return asm[name].apply(null, arguments);
|
|
};
|
|
}
|
|
|
|
var wasmBinaryFile;
|
|
wasmBinaryFile = '第七章作业2.wasm';
|
|
if (!isDataURI(wasmBinaryFile)) {
|
|
wasmBinaryFile = locateFile(wasmBinaryFile);
|
|
}
|
|
|
|
function getBinary(file) {
|
|
try {
|
|
if (file == wasmBinaryFile && wasmBinary) {
|
|
return new Uint8Array(wasmBinary);
|
|
}
|
|
if (readBinary) {
|
|
return readBinary(file);
|
|
} else {
|
|
throw "both async and sync fetching of the wasm failed";
|
|
}
|
|
}
|
|
catch (err) {
|
|
abort(err);
|
|
}
|
|
}
|
|
|
|
function getBinaryPromise() {
|
|
// If we don't have the binary yet, try to to load it asynchronously.
|
|
// Fetch has some additional restrictions over XHR, like it can't be used on a file:// url.
|
|
// See https://github.com/github/fetch/pull/92#issuecomment-140665932
|
|
// Cordova or Electron apps are typically loaded from a file:// url.
|
|
// So use fetch if it is available and the url is not a file, otherwise fall back to XHR.
|
|
if (!wasmBinary && (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER)) {
|
|
if (typeof fetch == 'function'
|
|
&& !isFileURI(wasmBinaryFile)
|
|
) {
|
|
return fetch(wasmBinaryFile, { credentials: 'same-origin' }).then(function(response) {
|
|
if (!response['ok']) {
|
|
throw "failed to load wasm binary file at '" + wasmBinaryFile + "'";
|
|
}
|
|
return response['arrayBuffer']();
|
|
}).catch(function () {
|
|
return getBinary(wasmBinaryFile);
|
|
});
|
|
}
|
|
else {
|
|
if (readAsync) {
|
|
// fetch is not available or url is file => try XHR (readAsync uses XHR internally)
|
|
return new Promise(function(resolve, reject) {
|
|
readAsync(wasmBinaryFile, function(response) { resolve(new Uint8Array(/** @type{!ArrayBuffer} */(response))) }, reject)
|
|
});
|
|
}
|
|
}
|
|
}
|
|
|
|
// Otherwise, getBinary should be able to get it synchronously
|
|
return Promise.resolve().then(function() { return getBinary(wasmBinaryFile); });
|
|
}
|
|
|
|
// Create the wasm instance.
|
|
// Receives the wasm imports, returns the exports.
|
|
function createWasm() {
|
|
// prepare imports
|
|
var info = {
|
|
'env': asmLibraryArg,
|
|
'wasi_snapshot_preview1': asmLibraryArg,
|
|
};
|
|
// Load the wasm module and create an instance of using native support in the JS engine.
|
|
// handle a generated wasm instance, receiving its exports and
|
|
// performing other necessary setup
|
|
/** @param {WebAssembly.Module=} module*/
|
|
function receiveInstance(instance, module) {
|
|
var exports = instance.exports;
|
|
|
|
Module['asm'] = exports;
|
|
|
|
wasmMemory = Module['asm']['memory'];
|
|
assert(wasmMemory, "memory not found in wasm exports");
|
|
// This assertion doesn't hold when emscripten is run in --post-link
|
|
// mode.
|
|
// TODO(sbc): Read INITIAL_MEMORY out of the wasm file in post-link mode.
|
|
//assert(wasmMemory.buffer.byteLength === 16777216);
|
|
updateGlobalBufferAndViews(wasmMemory.buffer);
|
|
|
|
wasmTable = Module['asm']['__indirect_function_table'];
|
|
assert(wasmTable, "table not found in wasm exports");
|
|
|
|
addOnInit(Module['asm']['__wasm_call_ctors']);
|
|
|
|
removeRunDependency('wasm-instantiate');
|
|
}
|
|
// we can't run yet (except in a pthread, where we have a custom sync instantiator)
|
|
addRunDependency('wasm-instantiate');
|
|
|
|
// Prefer streaming instantiation if available.
|
|
// Async compilation can be confusing when an error on the page overwrites Module
|
|
// (for example, if the order of elements is wrong, and the one defining Module is
|
|
// later), so we save Module and check it later.
|
|
var trueModule = Module;
|
|
function receiveInstantiationResult(result) {
|
|
// 'result' is a ResultObject object which has both the module and instance.
|
|
// receiveInstance() will swap in the exports (to Module.asm) so they can be called
|
|
assert(Module === trueModule, 'the Module object should not be replaced during async compilation - perhaps the order of HTML elements is wrong?');
|
|
trueModule = null;
|
|
// TODO: Due to Closure regression https://github.com/google/closure-compiler/issues/3193, the above line no longer optimizes out down to the following line.
|
|
// When the regression is fixed, can restore the above USE_PTHREADS-enabled path.
|
|
receiveInstance(result['instance']);
|
|
}
|
|
|
|
function instantiateArrayBuffer(receiver) {
|
|
return getBinaryPromise().then(function(binary) {
|
|
return WebAssembly.instantiate(binary, info);
|
|
}).then(function (instance) {
|
|
return instance;
|
|
}).then(receiver, function(reason) {
|
|
err('failed to asynchronously prepare wasm: ' + reason);
|
|
|
|
// Warn on some common problems.
|
|
if (isFileURI(wasmBinaryFile)) {
|
|
err('warning: Loading from a file URI (' + wasmBinaryFile + ') is not supported in most browsers. See https://emscripten.org/docs/getting_started/FAQ.html#how-do-i-run-a-local-webserver-for-testing-why-does-my-program-stall-in-downloading-or-preparing');
|
|
}
|
|
abort(reason);
|
|
});
|
|
}
|
|
|
|
function instantiateAsync() {
|
|
if (!wasmBinary &&
|
|
typeof WebAssembly.instantiateStreaming == 'function' &&
|
|
!isDataURI(wasmBinaryFile) &&
|
|
// Don't use streaming for file:// delivered objects in a webview, fetch them synchronously.
|
|
!isFileURI(wasmBinaryFile) &&
|
|
typeof fetch == 'function') {
|
|
return fetch(wasmBinaryFile, { credentials: 'same-origin' }).then(function(response) {
|
|
// Suppress closure warning here since the upstream definition for
|
|
// instantiateStreaming only allows Promise<Repsponse> rather than
|
|
// an actual Response.
|
|
// TODO(https://github.com/google/closure-compiler/pull/3913): Remove if/when upstream closure is fixed.
|
|
/** @suppress {checkTypes} */
|
|
var result = WebAssembly.instantiateStreaming(response, info);
|
|
|
|
return result.then(
|
|
receiveInstantiationResult,
|
|
function(reason) {
|
|
// We expect the most common failure cause to be a bad MIME type for the binary,
|
|
// in which case falling back to ArrayBuffer instantiation should work.
|
|
err('wasm streaming compile failed: ' + reason);
|
|
err('falling back to ArrayBuffer instantiation');
|
|
return instantiateArrayBuffer(receiveInstantiationResult);
|
|
});
|
|
});
|
|
} else {
|
|
return instantiateArrayBuffer(receiveInstantiationResult);
|
|
}
|
|
}
|
|
|
|
// User shell pages can write their own Module.instantiateWasm = function(imports, successCallback) callback
|
|
// to manually instantiate the Wasm module themselves. This allows pages to run the instantiation parallel
|
|
// to any other async startup actions they are performing.
|
|
if (Module['instantiateWasm']) {
|
|
try {
|
|
var exports = Module['instantiateWasm'](info, receiveInstance);
|
|
return exports;
|
|
} catch(e) {
|
|
err('Module.instantiateWasm callback failed with error: ' + e);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
instantiateAsync();
|
|
return {}; // no exports yet; we'll fill them in later
|
|
}
|
|
|
|
// Globals used by JS i64 conversions (see makeSetValue)
|
|
var tempDouble;
|
|
var tempI64;
|
|
|
|
// === Body ===
|
|
|
|
var ASM_CONSTS = {
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
function callRuntimeCallbacks(callbacks) {
|
|
while (callbacks.length > 0) {
|
|
var callback = callbacks.shift();
|
|
if (typeof callback == 'function') {
|
|
callback(Module); // Pass the module as the first argument.
|
|
continue;
|
|
}
|
|
var func = callback.func;
|
|
if (typeof func == 'number') {
|
|
if (callback.arg === undefined) {
|
|
getWasmTableEntry(func)();
|
|
} else {
|
|
getWasmTableEntry(func)(callback.arg);
|
|
}
|
|
} else {
|
|
func(callback.arg === undefined ? null : callback.arg);
|
|
}
|
|
}
|
|
}
|
|
|
|
function withStackSave(f) {
|
|
var stack = stackSave();
|
|
var ret = f();
|
|
stackRestore(stack);
|
|
return ret;
|
|
}
|
|
function demangle(func) {
|
|
warnOnce('warning: build with -s DEMANGLE_SUPPORT=1 to link in libcxxabi demangling');
|
|
return func;
|
|
}
|
|
|
|
function demangleAll(text) {
|
|
var regex =
|
|
/\b_Z[\w\d_]+/g;
|
|
return text.replace(regex,
|
|
function(x) {
|
|
var y = demangle(x);
|
|
return x === y ? x : (y + ' [' + x + ']');
|
|
});
|
|
}
|
|
|
|
var wasmTableMirror = [];
|
|
function getWasmTableEntry(funcPtr) {
|
|
var func = wasmTableMirror[funcPtr];
|
|
if (!func) {
|
|
if (funcPtr >= wasmTableMirror.length) wasmTableMirror.length = funcPtr + 1;
|
|
wasmTableMirror[funcPtr] = func = wasmTable.get(funcPtr);
|
|
}
|
|
assert(wasmTable.get(funcPtr) == func, "JavaScript-side Wasm function table mirror is out of date!");
|
|
return func;
|
|
}
|
|
|
|
function handleException(e) {
|
|
// Certain exception types we do not treat as errors since they are used for
|
|
// internal control flow.
|
|
// 1. ExitStatus, which is thrown by exit()
|
|
// 2. "unwind", which is thrown by emscripten_unwind_to_js_event_loop() and others
|
|
// that wish to return to JS event loop.
|
|
if (e instanceof ExitStatus || e == 'unwind') {
|
|
return EXITSTATUS;
|
|
}
|
|
quit_(1, e);
|
|
}
|
|
|
|
function jsStackTrace() {
|
|
var error = new Error();
|
|
if (!error.stack) {
|
|
// IE10+ special cases: It does have callstack info, but it is only populated if an Error object is thrown,
|
|
// so try that as a special-case.
|
|
try {
|
|
throw new Error();
|
|
} catch(e) {
|
|
error = e;
|
|
}
|
|
if (!error.stack) {
|
|
return '(no stack trace available)';
|
|
}
|
|
}
|
|
return error.stack.toString();
|
|
}
|
|
|
|
function setWasmTableEntry(idx, func) {
|
|
wasmTable.set(idx, func);
|
|
wasmTableMirror[idx] = func;
|
|
}
|
|
|
|
function stackTrace() {
|
|
var js = jsStackTrace();
|
|
if (Module['extraStackTrace']) js += '\n' + Module['extraStackTrace']();
|
|
return demangleAll(js);
|
|
}
|
|
|
|
function ___assert_fail(condition, filename, line, func) {
|
|
abort('Assertion failed: ' + UTF8ToString(condition) + ', at: ' + [filename ? UTF8ToString(filename) : 'unknown filename', line, func ? UTF8ToString(func) : 'unknown function']);
|
|
}
|
|
|
|
function ___cxa_allocate_exception(size) {
|
|
// Thrown object is prepended by exception metadata block
|
|
return _malloc(size + 16) + 16;
|
|
}
|
|
|
|
/** @constructor */
|
|
function ExceptionInfo(excPtr) {
|
|
this.excPtr = excPtr;
|
|
this.ptr = excPtr - 16;
|
|
|
|
this.set_type = function(type) {
|
|
HEAP32[(((this.ptr)+(4))>>2)] = type;
|
|
};
|
|
|
|
this.get_type = function() {
|
|
return HEAP32[(((this.ptr)+(4))>>2)];
|
|
};
|
|
|
|
this.set_destructor = function(destructor) {
|
|
HEAP32[(((this.ptr)+(8))>>2)] = destructor;
|
|
};
|
|
|
|
this.get_destructor = function() {
|
|
return HEAP32[(((this.ptr)+(8))>>2)];
|
|
};
|
|
|
|
this.set_refcount = function(refcount) {
|
|
HEAP32[((this.ptr)>>2)] = refcount;
|
|
};
|
|
|
|
this.set_caught = function (caught) {
|
|
caught = caught ? 1 : 0;
|
|
HEAP8[(((this.ptr)+(12))>>0)] = caught;
|
|
};
|
|
|
|
this.get_caught = function () {
|
|
return HEAP8[(((this.ptr)+(12))>>0)] != 0;
|
|
};
|
|
|
|
this.set_rethrown = function (rethrown) {
|
|
rethrown = rethrown ? 1 : 0;
|
|
HEAP8[(((this.ptr)+(13))>>0)] = rethrown;
|
|
};
|
|
|
|
this.get_rethrown = function () {
|
|
return HEAP8[(((this.ptr)+(13))>>0)] != 0;
|
|
};
|
|
|
|
// Initialize native structure fields. Should be called once after allocated.
|
|
this.init = function(type, destructor) {
|
|
this.set_type(type);
|
|
this.set_destructor(destructor);
|
|
this.set_refcount(0);
|
|
this.set_caught(false);
|
|
this.set_rethrown(false);
|
|
}
|
|
|
|
this.add_ref = function() {
|
|
var value = HEAP32[((this.ptr)>>2)];
|
|
HEAP32[((this.ptr)>>2)] = value + 1;
|
|
};
|
|
|
|
// Returns true if last reference released.
|
|
this.release_ref = function() {
|
|
var prev = HEAP32[((this.ptr)>>2)];
|
|
HEAP32[((this.ptr)>>2)] = prev - 1;
|
|
assert(prev > 0);
|
|
return prev === 1;
|
|
};
|
|
}
|
|
|
|
var exceptionLast = 0;
|
|
|
|
var uncaughtExceptionCount = 0;
|
|
function ___cxa_throw(ptr, type, destructor) {
|
|
var info = new ExceptionInfo(ptr);
|
|
// Initialize ExceptionInfo content after it was allocated in __cxa_allocate_exception.
|
|
info.init(type, destructor);
|
|
exceptionLast = ptr;
|
|
uncaughtExceptionCount++;
|
|
throw ptr + " - Exception catching is disabled, this exception cannot be caught. Compile with -s NO_DISABLE_EXCEPTION_CATCHING or -s EXCEPTION_CATCHING_ALLOWED=[..] to catch.";
|
|
}
|
|
|
|
function _abort() {
|
|
abort('native code called abort()');
|
|
}
|
|
|
|
function _emscripten_memcpy_big(dest, src, num) {
|
|
HEAPU8.copyWithin(dest, src, src + num);
|
|
}
|
|
|
|
function _emscripten_get_heap_max() {
|
|
return HEAPU8.length;
|
|
}
|
|
|
|
function abortOnCannotGrowMemory(requestedSize) {
|
|
abort('Cannot enlarge memory arrays to size ' + requestedSize + ' bytes (OOM). Either (1) compile with -s INITIAL_MEMORY=X with X higher than the current value ' + HEAP8.length + ', (2) compile with -s ALLOW_MEMORY_GROWTH=1 which allows increasing the size at runtime, or (3) if you want malloc to return NULL (0) instead of this abort, compile with -s ABORTING_MALLOC=0 ');
|
|
}
|
|
function _emscripten_resize_heap(requestedSize) {
|
|
var oldSize = HEAPU8.length;
|
|
requestedSize = requestedSize >>> 0;
|
|
abortOnCannotGrowMemory(requestedSize);
|
|
}
|
|
|
|
var ENV = {};
|
|
|
|
function getExecutableName() {
|
|
return thisProgram || './this.program';
|
|
}
|
|
function getEnvStrings() {
|
|
if (!getEnvStrings.strings) {
|
|
// Default values.
|
|
// Browser language detection #8751
|
|
var lang = ((typeof navigator == 'object' && navigator.languages && navigator.languages[0]) || 'C').replace('-', '_') + '.UTF-8';
|
|
var env = {
|
|
'USER': 'web_user',
|
|
'LOGNAME': 'web_user',
|
|
'PATH': '/',
|
|
'PWD': '/',
|
|
'HOME': '/home/web_user',
|
|
'LANG': lang,
|
|
'_': getExecutableName()
|
|
};
|
|
// Apply the user-provided values, if any.
|
|
for (var x in ENV) {
|
|
// x is a key in ENV; if ENV[x] is undefined, that means it was
|
|
// explicitly set to be so. We allow user code to do that to
|
|
// force variables with default values to remain unset.
|
|
if (ENV[x] === undefined) delete env[x];
|
|
else env[x] = ENV[x];
|
|
}
|
|
var strings = [];
|
|
for (var x in env) {
|
|
strings.push(x + '=' + env[x]);
|
|
}
|
|
getEnvStrings.strings = strings;
|
|
}
|
|
return getEnvStrings.strings;
|
|
}
|
|
|
|
var PATH = {splitPath:function(filename) {
|
|
var splitPathRe = /^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;
|
|
return splitPathRe.exec(filename).slice(1);
|
|
},normalizeArray:function(parts, allowAboveRoot) {
|
|
// if the path tries to go above the root, `up` ends up > 0
|
|
var up = 0;
|
|
for (var i = parts.length - 1; i >= 0; i--) {
|
|
var last = parts[i];
|
|
if (last === '.') {
|
|
parts.splice(i, 1);
|
|
} else if (last === '..') {
|
|
parts.splice(i, 1);
|
|
up++;
|
|
} else if (up) {
|
|
parts.splice(i, 1);
|
|
up--;
|
|
}
|
|
}
|
|
// if the path is allowed to go above the root, restore leading ..s
|
|
if (allowAboveRoot) {
|
|
for (; up; up--) {
|
|
parts.unshift('..');
|
|
}
|
|
}
|
|
return parts;
|
|
},normalize:function(path) {
|
|
var isAbsolute = path.charAt(0) === '/',
|
|
trailingSlash = path.substr(-1) === '/';
|
|
// Normalize the path
|
|
path = PATH.normalizeArray(path.split('/').filter(function(p) {
|
|
return !!p;
|
|
}), !isAbsolute).join('/');
|
|
if (!path && !isAbsolute) {
|
|
path = '.';
|
|
}
|
|
if (path && trailingSlash) {
|
|
path += '/';
|
|
}
|
|
return (isAbsolute ? '/' : '') + path;
|
|
},dirname:function(path) {
|
|
var result = PATH.splitPath(path),
|
|
root = result[0],
|
|
dir = result[1];
|
|
if (!root && !dir) {
|
|
// No dirname whatsoever
|
|
return '.';
|
|
}
|
|
if (dir) {
|
|
// It has a dirname, strip trailing slash
|
|
dir = dir.substr(0, dir.length - 1);
|
|
}
|
|
return root + dir;
|
|
},basename:function(path) {
|
|
// EMSCRIPTEN return '/'' for '/', not an empty string
|
|
if (path === '/') return '/';
|
|
path = PATH.normalize(path);
|
|
path = path.replace(/\/$/, "");
|
|
var lastSlash = path.lastIndexOf('/');
|
|
if (lastSlash === -1) return path;
|
|
return path.substr(lastSlash+1);
|
|
},extname:function(path) {
|
|
return PATH.splitPath(path)[3];
|
|
},join:function() {
|
|
var paths = Array.prototype.slice.call(arguments, 0);
|
|
return PATH.normalize(paths.join('/'));
|
|
},join2:function(l, r) {
|
|
return PATH.normalize(l + '/' + r);
|
|
}};
|
|
|
|
function getRandomDevice() {
|
|
if (typeof crypto == 'object' && typeof crypto['getRandomValues'] == 'function') {
|
|
// for modern web browsers
|
|
var randomBuffer = new Uint8Array(1);
|
|
return function() { crypto.getRandomValues(randomBuffer); return randomBuffer[0]; };
|
|
} else
|
|
if (ENVIRONMENT_IS_NODE) {
|
|
// for nodejs with or without crypto support included
|
|
try {
|
|
var crypto_module = require('crypto');
|
|
// nodejs has crypto support
|
|
return function() { return crypto_module['randomBytes'](1)[0]; };
|
|
} catch (e) {
|
|
// nodejs doesn't have crypto support
|
|
}
|
|
}
|
|
// we couldn't find a proper implementation, as Math.random() is not suitable for /dev/random, see emscripten-core/emscripten/pull/7096
|
|
return function() { abort("no cryptographic support found for randomDevice. consider polyfilling it if you want to use something insecure like Math.random(), e.g. put this in a --pre-js: var crypto = { getRandomValues: function(array) { for (var i = 0; i < array.length; i++) array[i] = (Math.random()*256)|0 } };"); };
|
|
}
|
|
|
|
var PATH_FS = {resolve:function() {
|
|
var resolvedPath = '',
|
|
resolvedAbsolute = false;
|
|
for (var i = arguments.length - 1; i >= -1 && !resolvedAbsolute; i--) {
|
|
var path = (i >= 0) ? arguments[i] : FS.cwd();
|
|
// Skip empty and invalid entries
|
|
if (typeof path != 'string') {
|
|
throw new TypeError('Arguments to path.resolve must be strings');
|
|
} else if (!path) {
|
|
return ''; // an invalid portion invalidates the whole thing
|
|
}
|
|
resolvedPath = path + '/' + resolvedPath;
|
|
resolvedAbsolute = path.charAt(0) === '/';
|
|
}
|
|
// At this point the path should be resolved to a full absolute path, but
|
|
// handle relative paths to be safe (might happen when process.cwd() fails)
|
|
resolvedPath = PATH.normalizeArray(resolvedPath.split('/').filter(function(p) {
|
|
return !!p;
|
|
}), !resolvedAbsolute).join('/');
|
|
return ((resolvedAbsolute ? '/' : '') + resolvedPath) || '.';
|
|
},relative:function(from, to) {
|
|
from = PATH_FS.resolve(from).substr(1);
|
|
to = PATH_FS.resolve(to).substr(1);
|
|
function trim(arr) {
|
|
var start = 0;
|
|
for (; start < arr.length; start++) {
|
|
if (arr[start] !== '') break;
|
|
}
|
|
var end = arr.length - 1;
|
|
for (; end >= 0; end--) {
|
|
if (arr[end] !== '') break;
|
|
}
|
|
if (start > end) return [];
|
|
return arr.slice(start, end - start + 1);
|
|
}
|
|
var fromParts = trim(from.split('/'));
|
|
var toParts = trim(to.split('/'));
|
|
var length = Math.min(fromParts.length, toParts.length);
|
|
var samePartsLength = length;
|
|
for (var i = 0; i < length; i++) {
|
|
if (fromParts[i] !== toParts[i]) {
|
|
samePartsLength = i;
|
|
break;
|
|
}
|
|
}
|
|
var outputParts = [];
|
|
for (var i = samePartsLength; i < fromParts.length; i++) {
|
|
outputParts.push('..');
|
|
}
|
|
outputParts = outputParts.concat(toParts.slice(samePartsLength));
|
|
return outputParts.join('/');
|
|
}};
|
|
|
|
var TTY = {ttys:[],init:function () {
|
|
// https://github.com/emscripten-core/emscripten/pull/1555
|
|
// if (ENVIRONMENT_IS_NODE) {
|
|
// // currently, FS.init does not distinguish if process.stdin is a file or TTY
|
|
// // device, it always assumes it's a TTY device. because of this, we're forcing
|
|
// // process.stdin to UTF8 encoding to at least make stdin reading compatible
|
|
// // with text files until FS.init can be refactored.
|
|
// process['stdin']['setEncoding']('utf8');
|
|
// }
|
|
},shutdown:function() {
|
|
// https://github.com/emscripten-core/emscripten/pull/1555
|
|
// if (ENVIRONMENT_IS_NODE) {
|
|
// // inolen: any idea as to why node -e 'process.stdin.read()' wouldn't exit immediately (with process.stdin being a tty)?
|
|
// // isaacs: because now it's reading from the stream, you've expressed interest in it, so that read() kicks off a _read() which creates a ReadReq operation
|
|
// // inolen: I thought read() in that case was a synchronous operation that just grabbed some amount of buffered data if it exists?
|
|
// // isaacs: it is. but it also triggers a _read() call, which calls readStart() on the handle
|
|
// // isaacs: do process.stdin.pause() and i'd think it'd probably close the pending call
|
|
// process['stdin']['pause']();
|
|
// }
|
|
},register:function(dev, ops) {
|
|
TTY.ttys[dev] = { input: [], output: [], ops: ops };
|
|
FS.registerDevice(dev, TTY.stream_ops);
|
|
},stream_ops:{open:function(stream) {
|
|
var tty = TTY.ttys[stream.node.rdev];
|
|
if (!tty) {
|
|
throw new FS.ErrnoError(43);
|
|
}
|
|
stream.tty = tty;
|
|
stream.seekable = false;
|
|
},close:function(stream) {
|
|
// flush any pending line data
|
|
stream.tty.ops.flush(stream.tty);
|
|
},flush:function(stream) {
|
|
stream.tty.ops.flush(stream.tty);
|
|
},read:function(stream, buffer, offset, length, pos /* ignored */) {
|
|
if (!stream.tty || !stream.tty.ops.get_char) {
|
|
throw new FS.ErrnoError(60);
|
|
}
|
|
var bytesRead = 0;
|
|
for (var i = 0; i < length; i++) {
|
|
var result;
|
|
try {
|
|
result = stream.tty.ops.get_char(stream.tty);
|
|
} catch (e) {
|
|
throw new FS.ErrnoError(29);
|
|
}
|
|
if (result === undefined && bytesRead === 0) {
|
|
throw new FS.ErrnoError(6);
|
|
}
|
|
if (result === null || result === undefined) break;
|
|
bytesRead++;
|
|
buffer[offset+i] = result;
|
|
}
|
|
if (bytesRead) {
|
|
stream.node.timestamp = Date.now();
|
|
}
|
|
return bytesRead;
|
|
},write:function(stream, buffer, offset, length, pos) {
|
|
if (!stream.tty || !stream.tty.ops.put_char) {
|
|
throw new FS.ErrnoError(60);
|
|
}
|
|
try {
|
|
for (var i = 0; i < length; i++) {
|
|
stream.tty.ops.put_char(stream.tty, buffer[offset+i]);
|
|
}
|
|
} catch (e) {
|
|
throw new FS.ErrnoError(29);
|
|
}
|
|
if (length) {
|
|
stream.node.timestamp = Date.now();
|
|
}
|
|
return i;
|
|
}},default_tty_ops:{get_char:function(tty) {
|
|
if (!tty.input.length) {
|
|
var result = null;
|
|
if (ENVIRONMENT_IS_NODE) {
|
|
// we will read data by chunks of BUFSIZE
|
|
var BUFSIZE = 256;
|
|
var buf = Buffer.alloc(BUFSIZE);
|
|
var bytesRead = 0;
|
|
|
|
try {
|
|
bytesRead = fs.readSync(process.stdin.fd, buf, 0, BUFSIZE, -1);
|
|
} catch(e) {
|
|
// Cross-platform differences: on Windows, reading EOF throws an exception, but on other OSes,
|
|
// reading EOF returns 0. Uniformize behavior by treating the EOF exception to return 0.
|
|
if (e.toString().includes('EOF')) bytesRead = 0;
|
|
else throw e;
|
|
}
|
|
|
|
if (bytesRead > 0) {
|
|
result = buf.slice(0, bytesRead).toString('utf-8');
|
|
} else {
|
|
result = null;
|
|
}
|
|
} else
|
|
if (typeof window != 'undefined' &&
|
|
typeof window.prompt == 'function') {
|
|
// Browser.
|
|
result = window.prompt('Input: '); // returns null on cancel
|
|
if (result !== null) {
|
|
result += '\n';
|
|
}
|
|
} else if (typeof readline == 'function') {
|
|
// Command line.
|
|
result = readline();
|
|
if (result !== null) {
|
|
result += '\n';
|
|
}
|
|
}
|
|
if (!result) {
|
|
return null;
|
|
}
|
|
tty.input = intArrayFromString(result, true);
|
|
}
|
|
return tty.input.shift();
|
|
},put_char:function(tty, val) {
|
|
if (val === null || val === 10) {
|
|
out(UTF8ArrayToString(tty.output, 0));
|
|
tty.output = [];
|
|
} else {
|
|
if (val != 0) tty.output.push(val); // val == 0 would cut text output off in the middle.
|
|
}
|
|
},flush:function(tty) {
|
|
if (tty.output && tty.output.length > 0) {
|
|
out(UTF8ArrayToString(tty.output, 0));
|
|
tty.output = [];
|
|
}
|
|
}},default_tty1_ops:{put_char:function(tty, val) {
|
|
if (val === null || val === 10) {
|
|
err(UTF8ArrayToString(tty.output, 0));
|
|
tty.output = [];
|
|
} else {
|
|
if (val != 0) tty.output.push(val);
|
|
}
|
|
},flush:function(tty) {
|
|
if (tty.output && tty.output.length > 0) {
|
|
err(UTF8ArrayToString(tty.output, 0));
|
|
tty.output = [];
|
|
}
|
|
}}};
|
|
|
|
function zeroMemory(address, size) {
|
|
HEAPU8.fill(0, address, address + size);
|
|
}
|
|
|
|
function alignMemory(size, alignment) {
|
|
assert(alignment, "alignment argument is required");
|
|
return Math.ceil(size / alignment) * alignment;
|
|
}
|
|
function mmapAlloc(size) {
|
|
abort('internal error: mmapAlloc called but `emscripten_builtin_memalign` native symbol not exported');
|
|
}
|
|
var MEMFS = {ops_table:null,mount:function(mount) {
|
|
return MEMFS.createNode(null, '/', 16384 | 511 /* 0777 */, 0);
|
|
},createNode:function(parent, name, mode, dev) {
|
|
if (FS.isBlkdev(mode) || FS.isFIFO(mode)) {
|
|
// no supported
|
|
throw new FS.ErrnoError(63);
|
|
}
|
|
if (!MEMFS.ops_table) {
|
|
MEMFS.ops_table = {
|
|
dir: {
|
|
node: {
|
|
getattr: MEMFS.node_ops.getattr,
|
|
setattr: MEMFS.node_ops.setattr,
|
|
lookup: MEMFS.node_ops.lookup,
|
|
mknod: MEMFS.node_ops.mknod,
|
|
rename: MEMFS.node_ops.rename,
|
|
unlink: MEMFS.node_ops.unlink,
|
|
rmdir: MEMFS.node_ops.rmdir,
|
|
readdir: MEMFS.node_ops.readdir,
|
|
symlink: MEMFS.node_ops.symlink
|
|
},
|
|
stream: {
|
|
llseek: MEMFS.stream_ops.llseek
|
|
}
|
|
},
|
|
file: {
|
|
node: {
|
|
getattr: MEMFS.node_ops.getattr,
|
|
setattr: MEMFS.node_ops.setattr
|
|
},
|
|
stream: {
|
|
llseek: MEMFS.stream_ops.llseek,
|
|
read: MEMFS.stream_ops.read,
|
|
write: MEMFS.stream_ops.write,
|
|
allocate: MEMFS.stream_ops.allocate,
|
|
mmap: MEMFS.stream_ops.mmap,
|
|
msync: MEMFS.stream_ops.msync
|
|
}
|
|
},
|
|
link: {
|
|
node: {
|
|
getattr: MEMFS.node_ops.getattr,
|
|
setattr: MEMFS.node_ops.setattr,
|
|
readlink: MEMFS.node_ops.readlink
|
|
},
|
|
stream: {}
|
|
},
|
|
chrdev: {
|
|
node: {
|
|
getattr: MEMFS.node_ops.getattr,
|
|
setattr: MEMFS.node_ops.setattr
|
|
},
|
|
stream: FS.chrdev_stream_ops
|
|
}
|
|
};
|
|
}
|
|
var node = FS.createNode(parent, name, mode, dev);
|
|
if (FS.isDir(node.mode)) {
|
|
node.node_ops = MEMFS.ops_table.dir.node;
|
|
node.stream_ops = MEMFS.ops_table.dir.stream;
|
|
node.contents = {};
|
|
} else if (FS.isFile(node.mode)) {
|
|
node.node_ops = MEMFS.ops_table.file.node;
|
|
node.stream_ops = MEMFS.ops_table.file.stream;
|
|
node.usedBytes = 0; // The actual number of bytes used in the typed array, as opposed to contents.length which gives the whole capacity.
|
|
// When the byte data of the file is populated, this will point to either a typed array, or a normal JS array. Typed arrays are preferred
|
|
// for performance, and used by default. However, typed arrays are not resizable like normal JS arrays are, so there is a small disk size
|
|
// penalty involved for appending file writes that continuously grow a file similar to std::vector capacity vs used -scheme.
|
|
node.contents = null;
|
|
} else if (FS.isLink(node.mode)) {
|
|
node.node_ops = MEMFS.ops_table.link.node;
|
|
node.stream_ops = MEMFS.ops_table.link.stream;
|
|
} else if (FS.isChrdev(node.mode)) {
|
|
node.node_ops = MEMFS.ops_table.chrdev.node;
|
|
node.stream_ops = MEMFS.ops_table.chrdev.stream;
|
|
}
|
|
node.timestamp = Date.now();
|
|
// add the new node to the parent
|
|
if (parent) {
|
|
parent.contents[name] = node;
|
|
parent.timestamp = node.timestamp;
|
|
}
|
|
return node;
|
|
},getFileDataAsTypedArray:function(node) {
|
|
if (!node.contents) return new Uint8Array(0);
|
|
if (node.contents.subarray) return node.contents.subarray(0, node.usedBytes); // Make sure to not return excess unused bytes.
|
|
return new Uint8Array(node.contents);
|
|
},expandFileStorage:function(node, newCapacity) {
|
|
var prevCapacity = node.contents ? node.contents.length : 0;
|
|
if (prevCapacity >= newCapacity) return; // No need to expand, the storage was already large enough.
|
|
// Don't expand strictly to the given requested limit if it's only a very small increase, but instead geometrically grow capacity.
|
|
// For small filesizes (<1MB), perform size*2 geometric increase, but for large sizes, do a much more conservative size*1.125 increase to
|
|
// avoid overshooting the allocation cap by a very large margin.
|
|
var CAPACITY_DOUBLING_MAX = 1024 * 1024;
|
|
newCapacity = Math.max(newCapacity, (prevCapacity * (prevCapacity < CAPACITY_DOUBLING_MAX ? 2.0 : 1.125)) >>> 0);
|
|
if (prevCapacity != 0) newCapacity = Math.max(newCapacity, 256); // At minimum allocate 256b for each file when expanding.
|
|
var oldContents = node.contents;
|
|
node.contents = new Uint8Array(newCapacity); // Allocate new storage.
|
|
if (node.usedBytes > 0) node.contents.set(oldContents.subarray(0, node.usedBytes), 0); // Copy old data over to the new storage.
|
|
},resizeFileStorage:function(node, newSize) {
|
|
if (node.usedBytes == newSize) return;
|
|
if (newSize == 0) {
|
|
node.contents = null; // Fully decommit when requesting a resize to zero.
|
|
node.usedBytes = 0;
|
|
} else {
|
|
var oldContents = node.contents;
|
|
node.contents = new Uint8Array(newSize); // Allocate new storage.
|
|
if (oldContents) {
|
|
node.contents.set(oldContents.subarray(0, Math.min(newSize, node.usedBytes))); // Copy old data over to the new storage.
|
|
}
|
|
node.usedBytes = newSize;
|
|
}
|
|
},node_ops:{getattr:function(node) {
|
|
var attr = {};
|
|
// device numbers reuse inode numbers.
|
|
attr.dev = FS.isChrdev(node.mode) ? node.id : 1;
|
|
attr.ino = node.id;
|
|
attr.mode = node.mode;
|
|
attr.nlink = 1;
|
|
attr.uid = 0;
|
|
attr.gid = 0;
|
|
attr.rdev = node.rdev;
|
|
if (FS.isDir(node.mode)) {
|
|
attr.size = 4096;
|
|
} else if (FS.isFile(node.mode)) {
|
|
attr.size = node.usedBytes;
|
|
} else if (FS.isLink(node.mode)) {
|
|
attr.size = node.link.length;
|
|
} else {
|
|
attr.size = 0;
|
|
}
|
|
attr.atime = new Date(node.timestamp);
|
|
attr.mtime = new Date(node.timestamp);
|
|
attr.ctime = new Date(node.timestamp);
|
|
// NOTE: In our implementation, st_blocks = Math.ceil(st_size/st_blksize),
|
|
// but this is not required by the standard.
|
|
attr.blksize = 4096;
|
|
attr.blocks = Math.ceil(attr.size / attr.blksize);
|
|
return attr;
|
|
},setattr:function(node, attr) {
|
|
if (attr.mode !== undefined) {
|
|
node.mode = attr.mode;
|
|
}
|
|
if (attr.timestamp !== undefined) {
|
|
node.timestamp = attr.timestamp;
|
|
}
|
|
if (attr.size !== undefined) {
|
|
MEMFS.resizeFileStorage(node, attr.size);
|
|
}
|
|
},lookup:function(parent, name) {
|
|
throw FS.genericErrors[44];
|
|
},mknod:function(parent, name, mode, dev) {
|
|
return MEMFS.createNode(parent, name, mode, dev);
|
|
},rename:function(old_node, new_dir, new_name) {
|
|
// if we're overwriting a directory at new_name, make sure it's empty.
|
|
if (FS.isDir(old_node.mode)) {
|
|
var new_node;
|
|
try {
|
|
new_node = FS.lookupNode(new_dir, new_name);
|
|
} catch (e) {
|
|
}
|
|
if (new_node) {
|
|
for (var i in new_node.contents) {
|
|
throw new FS.ErrnoError(55);
|
|
}
|
|
}
|
|
}
|
|
// do the internal rewiring
|
|
delete old_node.parent.contents[old_node.name];
|
|
old_node.parent.timestamp = Date.now()
|
|
old_node.name = new_name;
|
|
new_dir.contents[new_name] = old_node;
|
|
new_dir.timestamp = old_node.parent.timestamp;
|
|
old_node.parent = new_dir;
|
|
},unlink:function(parent, name) {
|
|
delete parent.contents[name];
|
|
parent.timestamp = Date.now();
|
|
},rmdir:function(parent, name) {
|
|
var node = FS.lookupNode(parent, name);
|
|
for (var i in node.contents) {
|
|
throw new FS.ErrnoError(55);
|
|
}
|
|
delete parent.contents[name];
|
|
parent.timestamp = Date.now();
|
|
},readdir:function(node) {
|
|
var entries = ['.', '..'];
|
|
for (var key in node.contents) {
|
|
if (!node.contents.hasOwnProperty(key)) {
|
|
continue;
|
|
}
|
|
entries.push(key);
|
|
}
|
|
return entries;
|
|
},symlink:function(parent, newname, oldpath) {
|
|
var node = MEMFS.createNode(parent, newname, 511 /* 0777 */ | 40960, 0);
|
|
node.link = oldpath;
|
|
return node;
|
|
},readlink:function(node) {
|
|
if (!FS.isLink(node.mode)) {
|
|
throw new FS.ErrnoError(28);
|
|
}
|
|
return node.link;
|
|
}},stream_ops:{read:function(stream, buffer, offset, length, position) {
|
|
var contents = stream.node.contents;
|
|
if (position >= stream.node.usedBytes) return 0;
|
|
var size = Math.min(stream.node.usedBytes - position, length);
|
|
assert(size >= 0);
|
|
if (size > 8 && contents.subarray) { // non-trivial, and typed array
|
|
buffer.set(contents.subarray(position, position + size), offset);
|
|
} else {
|
|
for (var i = 0; i < size; i++) buffer[offset + i] = contents[position + i];
|
|
}
|
|
return size;
|
|
},write:function(stream, buffer, offset, length, position, canOwn) {
|
|
// The data buffer should be a typed array view
|
|
assert(!(buffer instanceof ArrayBuffer));
|
|
|
|
if (!length) return 0;
|
|
var node = stream.node;
|
|
node.timestamp = Date.now();
|
|
|
|
if (buffer.subarray && (!node.contents || node.contents.subarray)) { // This write is from a typed array to a typed array?
|
|
if (canOwn) {
|
|
assert(position === 0, 'canOwn must imply no weird position inside the file');
|
|
node.contents = buffer.subarray(offset, offset + length);
|
|
node.usedBytes = length;
|
|
return length;
|
|
} else if (node.usedBytes === 0 && position === 0) { // If this is a simple first write to an empty file, do a fast set since we don't need to care about old data.
|
|
node.contents = buffer.slice(offset, offset + length);
|
|
node.usedBytes = length;
|
|
return length;
|
|
} else if (position + length <= node.usedBytes) { // Writing to an already allocated and used subrange of the file?
|
|
node.contents.set(buffer.subarray(offset, offset + length), position);
|
|
return length;
|
|
}
|
|
}
|
|
|
|
// Appending to an existing file and we need to reallocate, or source data did not come as a typed array.
|
|
MEMFS.expandFileStorage(node, position+length);
|
|
if (node.contents.subarray && buffer.subarray) {
|
|
// Use typed array write which is available.
|
|
node.contents.set(buffer.subarray(offset, offset + length), position);
|
|
} else {
|
|
for (var i = 0; i < length; i++) {
|
|
node.contents[position + i] = buffer[offset + i]; // Or fall back to manual write if not.
|
|
}
|
|
}
|
|
node.usedBytes = Math.max(node.usedBytes, position + length);
|
|
return length;
|
|
},llseek:function(stream, offset, whence) {
|
|
var position = offset;
|
|
if (whence === 1) {
|
|
position += stream.position;
|
|
} else if (whence === 2) {
|
|
if (FS.isFile(stream.node.mode)) {
|
|
position += stream.node.usedBytes;
|
|
}
|
|
}
|
|
if (position < 0) {
|
|
throw new FS.ErrnoError(28);
|
|
}
|
|
return position;
|
|
},allocate:function(stream, offset, length) {
|
|
MEMFS.expandFileStorage(stream.node, offset + length);
|
|
stream.node.usedBytes = Math.max(stream.node.usedBytes, offset + length);
|
|
},mmap:function(stream, address, length, position, prot, flags) {
|
|
if (address !== 0) {
|
|
// We don't currently support location hints for the address of the mapping
|
|
throw new FS.ErrnoError(28);
|
|
}
|
|
if (!FS.isFile(stream.node.mode)) {
|
|
throw new FS.ErrnoError(43);
|
|
}
|
|
var ptr;
|
|
var allocated;
|
|
var contents = stream.node.contents;
|
|
// Only make a new copy when MAP_PRIVATE is specified.
|
|
if (!(flags & 2) && contents.buffer === buffer) {
|
|
// We can't emulate MAP_SHARED when the file is not backed by the buffer
|
|
// we're mapping to (e.g. the HEAP buffer).
|
|
allocated = false;
|
|
ptr = contents.byteOffset;
|
|
} else {
|
|
// Try to avoid unnecessary slices.
|
|
if (position > 0 || position + length < contents.length) {
|
|
if (contents.subarray) {
|
|
contents = contents.subarray(position, position + length);
|
|
} else {
|
|
contents = Array.prototype.slice.call(contents, position, position + length);
|
|
}
|
|
}
|
|
allocated = true;
|
|
ptr = mmapAlloc(length);
|
|
if (!ptr) {
|
|
throw new FS.ErrnoError(48);
|
|
}
|
|
HEAP8.set(contents, ptr);
|
|
}
|
|
return { ptr: ptr, allocated: allocated };
|
|
},msync:function(stream, buffer, offset, length, mmapFlags) {
|
|
if (!FS.isFile(stream.node.mode)) {
|
|
throw new FS.ErrnoError(43);
|
|
}
|
|
if (mmapFlags & 2) {
|
|
// MAP_PRIVATE calls need not to be synced back to underlying fs
|
|
return 0;
|
|
}
|
|
|
|
var bytesWritten = MEMFS.stream_ops.write(stream, buffer, 0, length, offset, false);
|
|
// should we check if bytesWritten and length are the same?
|
|
return 0;
|
|
}}};
|
|
|
|
/** @param {boolean=} noRunDep */
|
|
function asyncLoad(url, onload, onerror, noRunDep) {
|
|
var dep = !noRunDep ? getUniqueRunDependency('al ' + url) : '';
|
|
readAsync(url, function(arrayBuffer) {
|
|
assert(arrayBuffer, 'Loading data file "' + url + '" failed (no arrayBuffer).');
|
|
onload(new Uint8Array(arrayBuffer));
|
|
if (dep) removeRunDependency(dep);
|
|
}, function(event) {
|
|
if (onerror) {
|
|
onerror();
|
|
} else {
|
|
throw 'Loading data file "' + url + '" failed.';
|
|
}
|
|
});
|
|
if (dep) addRunDependency(dep);
|
|
}
|
|
|
|
var ERRNO_MESSAGES = {0:"Success",1:"Arg list too long",2:"Permission denied",3:"Address already in use",4:"Address not available",5:"Address family not supported by protocol family",6:"No more processes",7:"Socket already connected",8:"Bad file number",9:"Trying to read unreadable message",10:"Mount device busy",11:"Operation canceled",12:"No children",13:"Connection aborted",14:"Connection refused",15:"Connection reset by peer",16:"File locking deadlock error",17:"Destination address required",18:"Math arg out of domain of func",19:"Quota exceeded",20:"File exists",21:"Bad address",22:"File too large",23:"Host is unreachable",24:"Identifier removed",25:"Illegal byte sequence",26:"Connection already in progress",27:"Interrupted system call",28:"Invalid argument",29:"I/O error",30:"Socket is already connected",31:"Is a directory",32:"Too many symbolic links",33:"Too many open files",34:"Too many links",35:"Message too long",36:"Multihop attempted",37:"File or path name too long",38:"Network interface is not configured",39:"Connection reset by network",40:"Network is unreachable",41:"Too many open files in system",42:"No buffer space available",43:"No such device",44:"No such file or directory",45:"Exec format error",46:"No record locks available",47:"The link has been severed",48:"Not enough core",49:"No message of desired type",50:"Protocol not available",51:"No space left on device",52:"Function not implemented",53:"Socket is not connected",54:"Not a directory",55:"Directory not empty",56:"State not recoverable",57:"Socket operation on non-socket",59:"Not a typewriter",60:"No such device or address",61:"Value too large for defined data type",62:"Previous owner died",63:"Not super-user",64:"Broken pipe",65:"Protocol error",66:"Unknown protocol",67:"Protocol wrong type for socket",68:"Math result not representable",69:"Read only file system",70:"Illegal seek",71:"No such process",72:"Stale file handle",73:"Connection timed out",74:"Text file busy",75:"Cross-device link",100:"Device not a stream",101:"Bad font file fmt",102:"Invalid slot",103:"Invalid request code",104:"No anode",105:"Block device required",106:"Channel number out of range",107:"Level 3 halted",108:"Level 3 reset",109:"Link number out of range",110:"Protocol driver not attached",111:"No CSI structure available",112:"Level 2 halted",113:"Invalid exchange",114:"Invalid request descriptor",115:"Exchange full",116:"No data (for no delay io)",117:"Timer expired",118:"Out of streams resources",119:"Machine is not on the network",120:"Package not installed",121:"The object is remote",122:"Advertise error",123:"Srmount error",124:"Communication error on send",125:"Cross mount point (not really error)",126:"Given log. name not unique",127:"f.d. invalid for this operation",128:"Remote address changed",129:"Can access a needed shared lib",130:"Accessing a corrupted shared lib",131:".lib section in a.out corrupted",132:"Attempting to link in too many libs",133:"Attempting to exec a shared library",135:"Streams pipe error",136:"Too many users",137:"Socket type not supported",138:"Not supported",139:"Protocol family not supported",140:"Can't send after socket shutdown",141:"Too many references",142:"Host is down",148:"No medium (in tape drive)",156:"Level 2 not synchronized"};
|
|
|
|
var ERRNO_CODES = {};
|
|
var FS = {root:null,mounts:[],devices:{},streams:[],nextInode:1,nameTable:null,currentPath:"/",initialized:false,ignorePermissions:true,ErrnoError:null,genericErrors:{},filesystems:null,syncFSRequests:0,lookupPath:(path, opts = {}) => {
|
|
path = PATH_FS.resolve(FS.cwd(), path);
|
|
|
|
if (!path) return { path: '', node: null };
|
|
|
|
var defaults = {
|
|
follow_mount: true,
|
|
recurse_count: 0
|
|
};
|
|
for (var key in defaults) {
|
|
if (opts[key] === undefined) {
|
|
opts[key] = defaults[key];
|
|
}
|
|
}
|
|
|
|
if (opts.recurse_count > 8) { // max recursive lookup of 8
|
|
throw new FS.ErrnoError(32);
|
|
}
|
|
|
|
// split the path
|
|
var parts = PATH.normalizeArray(path.split('/').filter((p) => !!p), false);
|
|
|
|
// start at the root
|
|
var current = FS.root;
|
|
var current_path = '/';
|
|
|
|
for (var i = 0; i < parts.length; i++) {
|
|
var islast = (i === parts.length-1);
|
|
if (islast && opts.parent) {
|
|
// stop resolving
|
|
break;
|
|
}
|
|
|
|
current = FS.lookupNode(current, parts[i]);
|
|
current_path = PATH.join2(current_path, parts[i]);
|
|
|
|
// jump to the mount's root node if this is a mountpoint
|
|
if (FS.isMountpoint(current)) {
|
|
if (!islast || (islast && opts.follow_mount)) {
|
|
current = current.mounted.root;
|
|
}
|
|
}
|
|
|
|
// by default, lookupPath will not follow a symlink if it is the final path component.
|
|
// setting opts.follow = true will override this behavior.
|
|
if (!islast || opts.follow) {
|
|
var count = 0;
|
|
while (FS.isLink(current.mode)) {
|
|
var link = FS.readlink(current_path);
|
|
current_path = PATH_FS.resolve(PATH.dirname(current_path), link);
|
|
|
|
var lookup = FS.lookupPath(current_path, { recurse_count: opts.recurse_count });
|
|
current = lookup.node;
|
|
|
|
if (count++ > 40) { // limit max consecutive symlinks to 40 (SYMLOOP_MAX).
|
|
throw new FS.ErrnoError(32);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return { path: current_path, node: current };
|
|
},getPath:(node) => {
|
|
var path;
|
|
while (true) {
|
|
if (FS.isRoot(node)) {
|
|
var mount = node.mount.mountpoint;
|
|
if (!path) return mount;
|
|
return mount[mount.length-1] !== '/' ? mount + '/' + path : mount + path;
|
|
}
|
|
path = path ? node.name + '/' + path : node.name;
|
|
node = node.parent;
|
|
}
|
|
},hashName:(parentid, name) => {
|
|
var hash = 0;
|
|
|
|
for (var i = 0; i < name.length; i++) {
|
|
hash = ((hash << 5) - hash + name.charCodeAt(i)) | 0;
|
|
}
|
|
return ((parentid + hash) >>> 0) % FS.nameTable.length;
|
|
},hashAddNode:(node) => {
|
|
var hash = FS.hashName(node.parent.id, node.name);
|
|
node.name_next = FS.nameTable[hash];
|
|
FS.nameTable[hash] = node;
|
|
},hashRemoveNode:(node) => {
|
|
var hash = FS.hashName(node.parent.id, node.name);
|
|
if (FS.nameTable[hash] === node) {
|
|
FS.nameTable[hash] = node.name_next;
|
|
} else {
|
|
var current = FS.nameTable[hash];
|
|
while (current) {
|
|
if (current.name_next === node) {
|
|
current.name_next = node.name_next;
|
|
break;
|
|
}
|
|
current = current.name_next;
|
|
}
|
|
}
|
|
},lookupNode:(parent, name) => {
|
|
var errCode = FS.mayLookup(parent);
|
|
if (errCode) {
|
|
throw new FS.ErrnoError(errCode, parent);
|
|
}
|
|
var hash = FS.hashName(parent.id, name);
|
|
for (var node = FS.nameTable[hash]; node; node = node.name_next) {
|
|
var nodeName = node.name;
|
|
if (node.parent.id === parent.id && nodeName === name) {
|
|
return node;
|
|
}
|
|
}
|
|
// if we failed to find it in the cache, call into the VFS
|
|
return FS.lookup(parent, name);
|
|
},createNode:(parent, name, mode, rdev) => {
|
|
assert(typeof parent == 'object')
|
|
var node = new FS.FSNode(parent, name, mode, rdev);
|
|
|
|
FS.hashAddNode(node);
|
|
|
|
return node;
|
|
},destroyNode:(node) => {
|
|
FS.hashRemoveNode(node);
|
|
},isRoot:(node) => {
|
|
return node === node.parent;
|
|
},isMountpoint:(node) => {
|
|
return !!node.mounted;
|
|
},isFile:(mode) => {
|
|
return (mode & 61440) === 32768;
|
|
},isDir:(mode) => {
|
|
return (mode & 61440) === 16384;
|
|
},isLink:(mode) => {
|
|
return (mode & 61440) === 40960;
|
|
},isChrdev:(mode) => {
|
|
return (mode & 61440) === 8192;
|
|
},isBlkdev:(mode) => {
|
|
return (mode & 61440) === 24576;
|
|
},isFIFO:(mode) => {
|
|
return (mode & 61440) === 4096;
|
|
},isSocket:(mode) => {
|
|
return (mode & 49152) === 49152;
|
|
},flagModes:{"r":0,"r+":2,"w":577,"w+":578,"a":1089,"a+":1090},modeStringToFlags:(str) => {
|
|
var flags = FS.flagModes[str];
|
|
if (typeof flags == 'undefined') {
|
|
throw new Error('Unknown file open mode: ' + str);
|
|
}
|
|
return flags;
|
|
},flagsToPermissionString:(flag) => {
|
|
var perms = ['r', 'w', 'rw'][flag & 3];
|
|
if ((flag & 512)) {
|
|
perms += 'w';
|
|
}
|
|
return perms;
|
|
},nodePermissions:(node, perms) => {
|
|
if (FS.ignorePermissions) {
|
|
return 0;
|
|
}
|
|
// return 0 if any user, group or owner bits are set.
|
|
if (perms.includes('r') && !(node.mode & 292)) {
|
|
return 2;
|
|
} else if (perms.includes('w') && !(node.mode & 146)) {
|
|
return 2;
|
|
} else if (perms.includes('x') && !(node.mode & 73)) {
|
|
return 2;
|
|
}
|
|
return 0;
|
|
},mayLookup:(dir) => {
|
|
var errCode = FS.nodePermissions(dir, 'x');
|
|
if (errCode) return errCode;
|
|
if (!dir.node_ops.lookup) return 2;
|
|
return 0;
|
|
},mayCreate:(dir, name) => {
|
|
try {
|
|
var node = FS.lookupNode(dir, name);
|
|
return 20;
|
|
} catch (e) {
|
|
}
|
|
return FS.nodePermissions(dir, 'wx');
|
|
},mayDelete:(dir, name, isdir) => {
|
|
var node;
|
|
try {
|
|
node = FS.lookupNode(dir, name);
|
|
} catch (e) {
|
|
return e.errno;
|
|
}
|
|
var errCode = FS.nodePermissions(dir, 'wx');
|
|
if (errCode) {
|
|
return errCode;
|
|
}
|
|
if (isdir) {
|
|
if (!FS.isDir(node.mode)) {
|
|
return 54;
|
|
}
|
|
if (FS.isRoot(node) || FS.getPath(node) === FS.cwd()) {
|
|
return 10;
|
|
}
|
|
} else {
|
|
if (FS.isDir(node.mode)) {
|
|
return 31;
|
|
}
|
|
}
|
|
return 0;
|
|
},mayOpen:(node, flags) => {
|
|
if (!node) {
|
|
return 44;
|
|
}
|
|
if (FS.isLink(node.mode)) {
|
|
return 32;
|
|
} else if (FS.isDir(node.mode)) {
|
|
if (FS.flagsToPermissionString(flags) !== 'r' || // opening for write
|
|
(flags & 512)) { // TODO: check for O_SEARCH? (== search for dir only)
|
|
return 31;
|
|
}
|
|
}
|
|
return FS.nodePermissions(node, FS.flagsToPermissionString(flags));
|
|
},MAX_OPEN_FDS:4096,nextfd:(fd_start = 0, fd_end = FS.MAX_OPEN_FDS) => {
|
|
for (var fd = fd_start; fd <= fd_end; fd++) {
|
|
if (!FS.streams[fd]) {
|
|
return fd;
|
|
}
|
|
}
|
|
throw new FS.ErrnoError(33);
|
|
},getStream:(fd) => FS.streams[fd],createStream:(stream, fd_start, fd_end) => {
|
|
if (!FS.FSStream) {
|
|
FS.FSStream = /** @constructor */ function(){};
|
|
FS.FSStream.prototype = {
|
|
object: {
|
|
get: function() { return this.node; },
|
|
set: function(val) { this.node = val; }
|
|
},
|
|
isRead: {
|
|
get: function() { return (this.flags & 2097155) !== 1; }
|
|
},
|
|
isWrite: {
|
|
get: function() { return (this.flags & 2097155) !== 0; }
|
|
},
|
|
isAppend: {
|
|
get: function() { return (this.flags & 1024); }
|
|
}
|
|
};
|
|
}
|
|
// clone it, so we can return an instance of FSStream
|
|
stream = Object.assign(new FS.FSStream(), stream);
|
|
var fd = FS.nextfd(fd_start, fd_end);
|
|
stream.fd = fd;
|
|
FS.streams[fd] = stream;
|
|
return stream;
|
|
},closeStream:(fd) => {
|
|
FS.streams[fd] = null;
|
|
},chrdev_stream_ops:{open:(stream) => {
|
|
var device = FS.getDevice(stream.node.rdev);
|
|
// override node's stream ops with the device's
|
|
stream.stream_ops = device.stream_ops;
|
|
// forward the open call
|
|
if (stream.stream_ops.open) {
|
|
stream.stream_ops.open(stream);
|
|
}
|
|
},llseek:() => {
|
|
throw new FS.ErrnoError(70);
|
|
}},major:(dev) => ((dev) >> 8),minor:(dev) => ((dev) & 0xff),makedev:(ma, mi) => ((ma) << 8 | (mi)),registerDevice:(dev, ops) => {
|
|
FS.devices[dev] = { stream_ops: ops };
|
|
},getDevice:(dev) => FS.devices[dev],getMounts:(mount) => {
|
|
var mounts = [];
|
|
var check = [mount];
|
|
|
|
while (check.length) {
|
|
var m = check.pop();
|
|
|
|
mounts.push(m);
|
|
|
|
check.push.apply(check, m.mounts);
|
|
}
|
|
|
|
return mounts;
|
|
},syncfs:(populate, callback) => {
|
|
if (typeof populate == 'function') {
|
|
callback = populate;
|
|
populate = false;
|
|
}
|
|
|
|
FS.syncFSRequests++;
|
|
|
|
if (FS.syncFSRequests > 1) {
|
|
err('warning: ' + FS.syncFSRequests + ' FS.syncfs operations in flight at once, probably just doing extra work');
|
|
}
|
|
|
|
var mounts = FS.getMounts(FS.root.mount);
|
|
var completed = 0;
|
|
|
|
function doCallback(errCode) {
|
|
assert(FS.syncFSRequests > 0);
|
|
FS.syncFSRequests--;
|
|
return callback(errCode);
|
|
}
|
|
|
|
function done(errCode) {
|
|
if (errCode) {
|
|
if (!done.errored) {
|
|
done.errored = true;
|
|
return doCallback(errCode);
|
|
}
|
|
return;
|
|
}
|
|
if (++completed >= mounts.length) {
|
|
doCallback(null);
|
|
}
|
|
};
|
|
|
|
// sync all mounts
|
|
mounts.forEach((mount) => {
|
|
if (!mount.type.syncfs) {
|
|
return done(null);
|
|
}
|
|
mount.type.syncfs(mount, populate, done);
|
|
});
|
|
},mount:(type, opts, mountpoint) => {
|
|
if (typeof type == 'string') {
|
|
// The filesystem was not included, and instead we have an error
|
|
// message stored in the variable.
|
|
throw type;
|
|
}
|
|
var root = mountpoint === '/';
|
|
var pseudo = !mountpoint;
|
|
var node;
|
|
|
|
if (root && FS.root) {
|
|
throw new FS.ErrnoError(10);
|
|
} else if (!root && !pseudo) {
|
|
var lookup = FS.lookupPath(mountpoint, { follow_mount: false });
|
|
|
|
mountpoint = lookup.path; // use the absolute path
|
|
node = lookup.node;
|
|
|
|
if (FS.isMountpoint(node)) {
|
|
throw new FS.ErrnoError(10);
|
|
}
|
|
|
|
if (!FS.isDir(node.mode)) {
|
|
throw new FS.ErrnoError(54);
|
|
}
|
|
}
|
|
|
|
var mount = {
|
|
type: type,
|
|
opts: opts,
|
|
mountpoint: mountpoint,
|
|
mounts: []
|
|
};
|
|
|
|
// create a root node for the fs
|
|
var mountRoot = type.mount(mount);
|
|
mountRoot.mount = mount;
|
|
mount.root = mountRoot;
|
|
|
|
if (root) {
|
|
FS.root = mountRoot;
|
|
} else if (node) {
|
|
// set as a mountpoint
|
|
node.mounted = mount;
|
|
|
|
// add the new mount to the current mount's children
|
|
if (node.mount) {
|
|
node.mount.mounts.push(mount);
|
|
}
|
|
}
|
|
|
|
return mountRoot;
|
|
},unmount:(mountpoint) => {
|
|
var lookup = FS.lookupPath(mountpoint, { follow_mount: false });
|
|
|
|
if (!FS.isMountpoint(lookup.node)) {
|
|
throw new FS.ErrnoError(28);
|
|
}
|
|
|
|
// destroy the nodes for this mount, and all its child mounts
|
|
var node = lookup.node;
|
|
var mount = node.mounted;
|
|
var mounts = FS.getMounts(mount);
|
|
|
|
Object.keys(FS.nameTable).forEach((hash) => {
|
|
var current = FS.nameTable[hash];
|
|
|
|
while (current) {
|
|
var next = current.name_next;
|
|
|
|
if (mounts.includes(current.mount)) {
|
|
FS.destroyNode(current);
|
|
}
|
|
|
|
current = next;
|
|
}
|
|
});
|
|
|
|
// no longer a mountpoint
|
|
node.mounted = null;
|
|
|
|
// remove this mount from the child mounts
|
|
var idx = node.mount.mounts.indexOf(mount);
|
|
assert(idx !== -1);
|
|
node.mount.mounts.splice(idx, 1);
|
|
},lookup:(parent, name) => {
|
|
return parent.node_ops.lookup(parent, name);
|
|
},mknod:(path, mode, dev) => {
|
|
var lookup = FS.lookupPath(path, { parent: true });
|
|
var parent = lookup.node;
|
|
var name = PATH.basename(path);
|
|
if (!name || name === '.' || name === '..') {
|
|
throw new FS.ErrnoError(28);
|
|
}
|
|
var errCode = FS.mayCreate(parent, name);
|
|
if (errCode) {
|
|
throw new FS.ErrnoError(errCode);
|
|
}
|
|
if (!parent.node_ops.mknod) {
|
|
throw new FS.ErrnoError(63);
|
|
}
|
|
return parent.node_ops.mknod(parent, name, mode, dev);
|
|
},create:(path, mode) => {
|
|
mode = mode !== undefined ? mode : 438 /* 0666 */;
|
|
mode &= 4095;
|
|
mode |= 32768;
|
|
return FS.mknod(path, mode, 0);
|
|
},mkdir:(path, mode) => {
|
|
mode = mode !== undefined ? mode : 511 /* 0777 */;
|
|
mode &= 511 | 512;
|
|
mode |= 16384;
|
|
return FS.mknod(path, mode, 0);
|
|
},mkdirTree:(path, mode) => {
|
|
var dirs = path.split('/');
|
|
var d = '';
|
|
for (var i = 0; i < dirs.length; ++i) {
|
|
if (!dirs[i]) continue;
|
|
d += '/' + dirs[i];
|
|
try {
|
|
FS.mkdir(d, mode);
|
|
} catch(e) {
|
|
if (e.errno != 20) throw e;
|
|
}
|
|
}
|
|
},mkdev:(path, mode, dev) => {
|
|
if (typeof dev == 'undefined') {
|
|
dev = mode;
|
|
mode = 438 /* 0666 */;
|
|
}
|
|
mode |= 8192;
|
|
return FS.mknod(path, mode, dev);
|
|
},symlink:(oldpath, newpath) => {
|
|
if (!PATH_FS.resolve(oldpath)) {
|
|
throw new FS.ErrnoError(44);
|
|
}
|
|
var lookup = FS.lookupPath(newpath, { parent: true });
|
|
var parent = lookup.node;
|
|
if (!parent) {
|
|
throw new FS.ErrnoError(44);
|
|
}
|
|
var newname = PATH.basename(newpath);
|
|
var errCode = FS.mayCreate(parent, newname);
|
|
if (errCode) {
|
|
throw new FS.ErrnoError(errCode);
|
|
}
|
|
if (!parent.node_ops.symlink) {
|
|
throw new FS.ErrnoError(63);
|
|
}
|
|
return parent.node_ops.symlink(parent, newname, oldpath);
|
|
},rename:(old_path, new_path) => {
|
|
var old_dirname = PATH.dirname(old_path);
|
|
var new_dirname = PATH.dirname(new_path);
|
|
var old_name = PATH.basename(old_path);
|
|
var new_name = PATH.basename(new_path);
|
|
// parents must exist
|
|
var lookup, old_dir, new_dir;
|
|
|
|
// let the errors from non existant directories percolate up
|
|
lookup = FS.lookupPath(old_path, { parent: true });
|
|
old_dir = lookup.node;
|
|
lookup = FS.lookupPath(new_path, { parent: true });
|
|
new_dir = lookup.node;
|
|
|
|
if (!old_dir || !new_dir) throw new FS.ErrnoError(44);
|
|
// need to be part of the same mount
|
|
if (old_dir.mount !== new_dir.mount) {
|
|
throw new FS.ErrnoError(75);
|
|
}
|
|
// source must exist
|
|
var old_node = FS.lookupNode(old_dir, old_name);
|
|
// old path should not be an ancestor of the new path
|
|
var relative = PATH_FS.relative(old_path, new_dirname);
|
|
if (relative.charAt(0) !== '.') {
|
|
throw new FS.ErrnoError(28);
|
|
}
|
|
// new path should not be an ancestor of the old path
|
|
relative = PATH_FS.relative(new_path, old_dirname);
|
|
if (relative.charAt(0) !== '.') {
|
|
throw new FS.ErrnoError(55);
|
|
}
|
|
// see if the new path already exists
|
|
var new_node;
|
|
try {
|
|
new_node = FS.lookupNode(new_dir, new_name);
|
|
} catch (e) {
|
|
// not fatal
|
|
}
|
|
// early out if nothing needs to change
|
|
if (old_node === new_node) {
|
|
return;
|
|
}
|
|
// we'll need to delete the old entry
|
|
var isdir = FS.isDir(old_node.mode);
|
|
var errCode = FS.mayDelete(old_dir, old_name, isdir);
|
|
if (errCode) {
|
|
throw new FS.ErrnoError(errCode);
|
|
}
|
|
// need delete permissions if we'll be overwriting.
|
|
// need create permissions if new doesn't already exist.
|
|
errCode = new_node ?
|
|
FS.mayDelete(new_dir, new_name, isdir) :
|
|
FS.mayCreate(new_dir, new_name);
|
|
if (errCode) {
|
|
throw new FS.ErrnoError(errCode);
|
|
}
|
|
if (!old_dir.node_ops.rename) {
|
|
throw new FS.ErrnoError(63);
|
|
}
|
|
if (FS.isMountpoint(old_node) || (new_node && FS.isMountpoint(new_node))) {
|
|
throw new FS.ErrnoError(10);
|
|
}
|
|
// if we are going to change the parent, check write permissions
|
|
if (new_dir !== old_dir) {
|
|
errCode = FS.nodePermissions(old_dir, 'w');
|
|
if (errCode) {
|
|
throw new FS.ErrnoError(errCode);
|
|
}
|
|
}
|
|
// remove the node from the lookup hash
|
|
FS.hashRemoveNode(old_node);
|
|
// do the underlying fs rename
|
|
try {
|
|
old_dir.node_ops.rename(old_node, new_dir, new_name);
|
|
} catch (e) {
|
|
throw e;
|
|
} finally {
|
|
// add the node back to the hash (in case node_ops.rename
|
|
// changed its name)
|
|
FS.hashAddNode(old_node);
|
|
}
|
|
},rmdir:(path) => {
|
|
var lookup = FS.lookupPath(path, { parent: true });
|
|
var parent = lookup.node;
|
|
var name = PATH.basename(path);
|
|
var node = FS.lookupNode(parent, name);
|
|
var errCode = FS.mayDelete(parent, name, true);
|
|
if (errCode) {
|
|
throw new FS.ErrnoError(errCode);
|
|
}
|
|
if (!parent.node_ops.rmdir) {
|
|
throw new FS.ErrnoError(63);
|
|
}
|
|
if (FS.isMountpoint(node)) {
|
|
throw new FS.ErrnoError(10);
|
|
}
|
|
parent.node_ops.rmdir(parent, name);
|
|
FS.destroyNode(node);
|
|
},readdir:(path) => {
|
|
var lookup = FS.lookupPath(path, { follow: true });
|
|
var node = lookup.node;
|
|
if (!node.node_ops.readdir) {
|
|
throw new FS.ErrnoError(54);
|
|
}
|
|
return node.node_ops.readdir(node);
|
|
},unlink:(path) => {
|
|
var lookup = FS.lookupPath(path, { parent: true });
|
|
var parent = lookup.node;
|
|
if (!parent) {
|
|
throw new FS.ErrnoError(44);
|
|
}
|
|
var name = PATH.basename(path);
|
|
var node = FS.lookupNode(parent, name);
|
|
var errCode = FS.mayDelete(parent, name, false);
|
|
if (errCode) {
|
|
// According to POSIX, we should map EISDIR to EPERM, but
|
|
// we instead do what Linux does (and we must, as we use
|
|
// the musl linux libc).
|
|
throw new FS.ErrnoError(errCode);
|
|
}
|
|
if (!parent.node_ops.unlink) {
|
|
throw new FS.ErrnoError(63);
|
|
}
|
|
if (FS.isMountpoint(node)) {
|
|
throw new FS.ErrnoError(10);
|
|
}
|
|
parent.node_ops.unlink(parent, name);
|
|
FS.destroyNode(node);
|
|
},readlink:(path) => {
|
|
var lookup = FS.lookupPath(path);
|
|
var link = lookup.node;
|
|
if (!link) {
|
|
throw new FS.ErrnoError(44);
|
|
}
|
|
if (!link.node_ops.readlink) {
|
|
throw new FS.ErrnoError(28);
|
|
}
|
|
return PATH_FS.resolve(FS.getPath(link.parent), link.node_ops.readlink(link));
|
|
},stat:(path, dontFollow) => {
|
|
var lookup = FS.lookupPath(path, { follow: !dontFollow });
|
|
var node = lookup.node;
|
|
if (!node) {
|
|
throw new FS.ErrnoError(44);
|
|
}
|
|
if (!node.node_ops.getattr) {
|
|
throw new FS.ErrnoError(63);
|
|
}
|
|
return node.node_ops.getattr(node);
|
|
},lstat:(path) => {
|
|
return FS.stat(path, true);
|
|
},chmod:(path, mode, dontFollow) => {
|
|
var node;
|
|
if (typeof path == 'string') {
|
|
var lookup = FS.lookupPath(path, { follow: !dontFollow });
|
|
node = lookup.node;
|
|
} else {
|
|
node = path;
|
|
}
|
|
if (!node.node_ops.setattr) {
|
|
throw new FS.ErrnoError(63);
|
|
}
|
|
node.node_ops.setattr(node, {
|
|
mode: (mode & 4095) | (node.mode & ~4095),
|
|
timestamp: Date.now()
|
|
});
|
|
},lchmod:(path, mode) => {
|
|
FS.chmod(path, mode, true);
|
|
},fchmod:(fd, mode) => {
|
|
var stream = FS.getStream(fd);
|
|
if (!stream) {
|
|
throw new FS.ErrnoError(8);
|
|
}
|
|
FS.chmod(stream.node, mode);
|
|
},chown:(path, uid, gid, dontFollow) => {
|
|
var node;
|
|
if (typeof path == 'string') {
|
|
var lookup = FS.lookupPath(path, { follow: !dontFollow });
|
|
node = lookup.node;
|
|
} else {
|
|
node = path;
|
|
}
|
|
if (!node.node_ops.setattr) {
|
|
throw new FS.ErrnoError(63);
|
|
}
|
|
node.node_ops.setattr(node, {
|
|
timestamp: Date.now()
|
|
// we ignore the uid / gid for now
|
|
});
|
|
},lchown:(path, uid, gid) => {
|
|
FS.chown(path, uid, gid, true);
|
|
},fchown:(fd, uid, gid) => {
|
|
var stream = FS.getStream(fd);
|
|
if (!stream) {
|
|
throw new FS.ErrnoError(8);
|
|
}
|
|
FS.chown(stream.node, uid, gid);
|
|
},truncate:(path, len) => {
|
|
if (len < 0) {
|
|
throw new FS.ErrnoError(28);
|
|
}
|
|
var node;
|
|
if (typeof path == 'string') {
|
|
var lookup = FS.lookupPath(path, { follow: true });
|
|
node = lookup.node;
|
|
} else {
|
|
node = path;
|
|
}
|
|
if (!node.node_ops.setattr) {
|
|
throw new FS.ErrnoError(63);
|
|
}
|
|
if (FS.isDir(node.mode)) {
|
|
throw new FS.ErrnoError(31);
|
|
}
|
|
if (!FS.isFile(node.mode)) {
|
|
throw new FS.ErrnoError(28);
|
|
}
|
|
var errCode = FS.nodePermissions(node, 'w');
|
|
if (errCode) {
|
|
throw new FS.ErrnoError(errCode);
|
|
}
|
|
node.node_ops.setattr(node, {
|
|
size: len,
|
|
timestamp: Date.now()
|
|
});
|
|
},ftruncate:(fd, len) => {
|
|
var stream = FS.getStream(fd);
|
|
if (!stream) {
|
|
throw new FS.ErrnoError(8);
|
|
}
|
|
if ((stream.flags & 2097155) === 0) {
|
|
throw new FS.ErrnoError(28);
|
|
}
|
|
FS.truncate(stream.node, len);
|
|
},utime:(path, atime, mtime) => {
|
|
var lookup = FS.lookupPath(path, { follow: true });
|
|
var node = lookup.node;
|
|
node.node_ops.setattr(node, {
|
|
timestamp: Math.max(atime, mtime)
|
|
});
|
|
},open:(path, flags, mode, fd_start, fd_end) => {
|
|
if (path === "") {
|
|
throw new FS.ErrnoError(44);
|
|
}
|
|
flags = typeof flags == 'string' ? FS.modeStringToFlags(flags) : flags;
|
|
mode = typeof mode == 'undefined' ? 438 /* 0666 */ : mode;
|
|
if ((flags & 64)) {
|
|
mode = (mode & 4095) | 32768;
|
|
} else {
|
|
mode = 0;
|
|
}
|
|
var node;
|
|
if (typeof path == 'object') {
|
|
node = path;
|
|
} else {
|
|
path = PATH.normalize(path);
|
|
try {
|
|
var lookup = FS.lookupPath(path, {
|
|
follow: !(flags & 131072)
|
|
});
|
|
node = lookup.node;
|
|
} catch (e) {
|
|
// ignore
|
|
}
|
|
}
|
|
// perhaps we need to create the node
|
|
var created = false;
|
|
if ((flags & 64)) {
|
|
if (node) {
|
|
// if O_CREAT and O_EXCL are set, error out if the node already exists
|
|
if ((flags & 128)) {
|
|
throw new FS.ErrnoError(20);
|
|
}
|
|
} else {
|
|
// node doesn't exist, try to create it
|
|
node = FS.mknod(path, mode, 0);
|
|
created = true;
|
|
}
|
|
}
|
|
if (!node) {
|
|
throw new FS.ErrnoError(44);
|
|
}
|
|
// can't truncate a device
|
|
if (FS.isChrdev(node.mode)) {
|
|
flags &= ~512;
|
|
}
|
|
// if asked only for a directory, then this must be one
|
|
if ((flags & 65536) && !FS.isDir(node.mode)) {
|
|
throw new FS.ErrnoError(54);
|
|
}
|
|
// check permissions, if this is not a file we just created now (it is ok to
|
|
// create and write to a file with read-only permissions; it is read-only
|
|
// for later use)
|
|
if (!created) {
|
|
var errCode = FS.mayOpen(node, flags);
|
|
if (errCode) {
|
|
throw new FS.ErrnoError(errCode);
|
|
}
|
|
}
|
|
// do truncation if necessary
|
|
if ((flags & 512)) {
|
|
FS.truncate(node, 0);
|
|
}
|
|
// we've already handled these, don't pass down to the underlying vfs
|
|
flags &= ~(128 | 512 | 131072);
|
|
|
|
// register the stream with the filesystem
|
|
var stream = FS.createStream({
|
|
node: node,
|
|
path: FS.getPath(node), // we want the absolute path to the node
|
|
flags: flags,
|
|
seekable: true,
|
|
position: 0,
|
|
stream_ops: node.stream_ops,
|
|
// used by the file family libc calls (fopen, fwrite, ferror, etc.)
|
|
ungotten: [],
|
|
error: false
|
|
}, fd_start, fd_end);
|
|
// call the new stream's open function
|
|
if (stream.stream_ops.open) {
|
|
stream.stream_ops.open(stream);
|
|
}
|
|
if (Module['logReadFiles'] && !(flags & 1)) {
|
|
if (!FS.readFiles) FS.readFiles = {};
|
|
if (!(path in FS.readFiles)) {
|
|
FS.readFiles[path] = 1;
|
|
}
|
|
}
|
|
return stream;
|
|
},close:(stream) => {
|
|
if (FS.isClosed(stream)) {
|
|
throw new FS.ErrnoError(8);
|
|
}
|
|
if (stream.getdents) stream.getdents = null; // free readdir state
|
|
try {
|
|
if (stream.stream_ops.close) {
|
|
stream.stream_ops.close(stream);
|
|
}
|
|
} catch (e) {
|
|
throw e;
|
|
} finally {
|
|
FS.closeStream(stream.fd);
|
|
}
|
|
stream.fd = null;
|
|
},isClosed:(stream) => {
|
|
return stream.fd === null;
|
|
},llseek:(stream, offset, whence) => {
|
|
if (FS.isClosed(stream)) {
|
|
throw new FS.ErrnoError(8);
|
|
}
|
|
if (!stream.seekable || !stream.stream_ops.llseek) {
|
|
throw new FS.ErrnoError(70);
|
|
}
|
|
if (whence != 0 && whence != 1 && whence != 2) {
|
|
throw new FS.ErrnoError(28);
|
|
}
|
|
stream.position = stream.stream_ops.llseek(stream, offset, whence);
|
|
stream.ungotten = [];
|
|
return stream.position;
|
|
},read:(stream, buffer, offset, length, position) => {
|
|
if (length < 0 || position < 0) {
|
|
throw new FS.ErrnoError(28);
|
|
}
|
|
if (FS.isClosed(stream)) {
|
|
throw new FS.ErrnoError(8);
|
|
}
|
|
if ((stream.flags & 2097155) === 1) {
|
|
throw new FS.ErrnoError(8);
|
|
}
|
|
if (FS.isDir(stream.node.mode)) {
|
|
throw new FS.ErrnoError(31);
|
|
}
|
|
if (!stream.stream_ops.read) {
|
|
throw new FS.ErrnoError(28);
|
|
}
|
|
var seeking = typeof position != 'undefined';
|
|
if (!seeking) {
|
|
position = stream.position;
|
|
} else if (!stream.seekable) {
|
|
throw new FS.ErrnoError(70);
|
|
}
|
|
var bytesRead = stream.stream_ops.read(stream, buffer, offset, length, position);
|
|
if (!seeking) stream.position += bytesRead;
|
|
return bytesRead;
|
|
},write:(stream, buffer, offset, length, position, canOwn) => {
|
|
if (length < 0 || position < 0) {
|
|
throw new FS.ErrnoError(28);
|
|
}
|
|
if (FS.isClosed(stream)) {
|
|
throw new FS.ErrnoError(8);
|
|
}
|
|
if ((stream.flags & 2097155) === 0) {
|
|
throw new FS.ErrnoError(8);
|
|
}
|
|
if (FS.isDir(stream.node.mode)) {
|
|
throw new FS.ErrnoError(31);
|
|
}
|
|
if (!stream.stream_ops.write) {
|
|
throw new FS.ErrnoError(28);
|
|
}
|
|
if (stream.seekable && stream.flags & 1024) {
|
|
// seek to the end before writing in append mode
|
|
FS.llseek(stream, 0, 2);
|
|
}
|
|
var seeking = typeof position != 'undefined';
|
|
if (!seeking) {
|
|
position = stream.position;
|
|
} else if (!stream.seekable) {
|
|
throw new FS.ErrnoError(70);
|
|
}
|
|
var bytesWritten = stream.stream_ops.write(stream, buffer, offset, length, position, canOwn);
|
|
if (!seeking) stream.position += bytesWritten;
|
|
return bytesWritten;
|
|
},allocate:(stream, offset, length) => {
|
|
if (FS.isClosed(stream)) {
|
|
throw new FS.ErrnoError(8);
|
|
}
|
|
if (offset < 0 || length <= 0) {
|
|
throw new FS.ErrnoError(28);
|
|
}
|
|
if ((stream.flags & 2097155) === 0) {
|
|
throw new FS.ErrnoError(8);
|
|
}
|
|
if (!FS.isFile(stream.node.mode) && !FS.isDir(stream.node.mode)) {
|
|
throw new FS.ErrnoError(43);
|
|
}
|
|
if (!stream.stream_ops.allocate) {
|
|
throw new FS.ErrnoError(138);
|
|
}
|
|
stream.stream_ops.allocate(stream, offset, length);
|
|
},mmap:(stream, address, length, position, prot, flags) => {
|
|
// User requests writing to file (prot & PROT_WRITE != 0).
|
|
// Checking if we have permissions to write to the file unless
|
|
// MAP_PRIVATE flag is set. According to POSIX spec it is possible
|
|
// to write to file opened in read-only mode with MAP_PRIVATE flag,
|
|
// as all modifications will be visible only in the memory of
|
|
// the current process.
|
|
if ((prot & 2) !== 0
|
|
&& (flags & 2) === 0
|
|
&& (stream.flags & 2097155) !== 2) {
|
|
throw new FS.ErrnoError(2);
|
|
}
|
|
if ((stream.flags & 2097155) === 1) {
|
|
throw new FS.ErrnoError(2);
|
|
}
|
|
if (!stream.stream_ops.mmap) {
|
|
throw new FS.ErrnoError(43);
|
|
}
|
|
return stream.stream_ops.mmap(stream, address, length, position, prot, flags);
|
|
},msync:(stream, buffer, offset, length, mmapFlags) => {
|
|
if (!stream || !stream.stream_ops.msync) {
|
|
return 0;
|
|
}
|
|
return stream.stream_ops.msync(stream, buffer, offset, length, mmapFlags);
|
|
},munmap:(stream) => 0,ioctl:(stream, cmd, arg) => {
|
|
if (!stream.stream_ops.ioctl) {
|
|
throw new FS.ErrnoError(59);
|
|
}
|
|
return stream.stream_ops.ioctl(stream, cmd, arg);
|
|
},readFile:(path, opts = {}) => {
|
|
opts.flags = opts.flags || 0;
|
|
opts.encoding = opts.encoding || 'binary';
|
|
if (opts.encoding !== 'utf8' && opts.encoding !== 'binary') {
|
|
throw new Error('Invalid encoding type "' + opts.encoding + '"');
|
|
}
|
|
var ret;
|
|
var stream = FS.open(path, opts.flags);
|
|
var stat = FS.stat(path);
|
|
var length = stat.size;
|
|
var buf = new Uint8Array(length);
|
|
FS.read(stream, buf, 0, length, 0);
|
|
if (opts.encoding === 'utf8') {
|
|
ret = UTF8ArrayToString(buf, 0);
|
|
} else if (opts.encoding === 'binary') {
|
|
ret = buf;
|
|
}
|
|
FS.close(stream);
|
|
return ret;
|
|
},writeFile:(path, data, opts = {}) => {
|
|
opts.flags = opts.flags || 577;
|
|
var stream = FS.open(path, opts.flags, opts.mode);
|
|
if (typeof data == 'string') {
|
|
var buf = new Uint8Array(lengthBytesUTF8(data)+1);
|
|
var actualNumBytes = stringToUTF8Array(data, buf, 0, buf.length);
|
|
FS.write(stream, buf, 0, actualNumBytes, undefined, opts.canOwn);
|
|
} else if (ArrayBuffer.isView(data)) {
|
|
FS.write(stream, data, 0, data.byteLength, undefined, opts.canOwn);
|
|
} else {
|
|
throw new Error('Unsupported data type');
|
|
}
|
|
FS.close(stream);
|
|
},cwd:() => FS.currentPath,chdir:(path) => {
|
|
var lookup = FS.lookupPath(path, { follow: true });
|
|
if (lookup.node === null) {
|
|
throw new FS.ErrnoError(44);
|
|
}
|
|
if (!FS.isDir(lookup.node.mode)) {
|
|
throw new FS.ErrnoError(54);
|
|
}
|
|
var errCode = FS.nodePermissions(lookup.node, 'x');
|
|
if (errCode) {
|
|
throw new FS.ErrnoError(errCode);
|
|
}
|
|
FS.currentPath = lookup.path;
|
|
},createDefaultDirectories:() => {
|
|
FS.mkdir('/tmp');
|
|
FS.mkdir('/home');
|
|
FS.mkdir('/home/web_user');
|
|
},createDefaultDevices:() => {
|
|
// create /dev
|
|
FS.mkdir('/dev');
|
|
// setup /dev/null
|
|
FS.registerDevice(FS.makedev(1, 3), {
|
|
read: () => 0,
|
|
write: (stream, buffer, offset, length, pos) => length,
|
|
});
|
|
FS.mkdev('/dev/null', FS.makedev(1, 3));
|
|
// setup /dev/tty and /dev/tty1
|
|
// stderr needs to print output using err() rather than out()
|
|
// so we register a second tty just for it.
|
|
TTY.register(FS.makedev(5, 0), TTY.default_tty_ops);
|
|
TTY.register(FS.makedev(6, 0), TTY.default_tty1_ops);
|
|
FS.mkdev('/dev/tty', FS.makedev(5, 0));
|
|
FS.mkdev('/dev/tty1', FS.makedev(6, 0));
|
|
// setup /dev/[u]random
|
|
var random_device = getRandomDevice();
|
|
FS.createDevice('/dev', 'random', random_device);
|
|
FS.createDevice('/dev', 'urandom', random_device);
|
|
// we're not going to emulate the actual shm device,
|
|
// just create the tmp dirs that reside in it commonly
|
|
FS.mkdir('/dev/shm');
|
|
FS.mkdir('/dev/shm/tmp');
|
|
},createSpecialDirectories:() => {
|
|
// create /proc/self/fd which allows /proc/self/fd/6 => readlink gives the
|
|
// name of the stream for fd 6 (see test_unistd_ttyname)
|
|
FS.mkdir('/proc');
|
|
var proc_self = FS.mkdir('/proc/self');
|
|
FS.mkdir('/proc/self/fd');
|
|
FS.mount({
|
|
mount: () => {
|
|
var node = FS.createNode(proc_self, 'fd', 16384 | 511 /* 0777 */, 73);
|
|
node.node_ops = {
|
|
lookup: (parent, name) => {
|
|
var fd = +name;
|
|
var stream = FS.getStream(fd);
|
|
if (!stream) throw new FS.ErrnoError(8);
|
|
var ret = {
|
|
parent: null,
|
|
mount: { mountpoint: 'fake' },
|
|
node_ops: { readlink: () => stream.path },
|
|
};
|
|
ret.parent = ret; // make it look like a simple root node
|
|
return ret;
|
|
}
|
|
};
|
|
return node;
|
|
}
|
|
}, {}, '/proc/self/fd');
|
|
},createStandardStreams:() => {
|
|
// TODO deprecate the old functionality of a single
|
|
// input / output callback and that utilizes FS.createDevice
|
|
// and instead require a unique set of stream ops
|
|
|
|
// by default, we symlink the standard streams to the
|
|
// default tty devices. however, if the standard streams
|
|
// have been overwritten we create a unique device for
|
|
// them instead.
|
|
if (Module['stdin']) {
|
|
FS.createDevice('/dev', 'stdin', Module['stdin']);
|
|
} else {
|
|
FS.symlink('/dev/tty', '/dev/stdin');
|
|
}
|
|
if (Module['stdout']) {
|
|
FS.createDevice('/dev', 'stdout', null, Module['stdout']);
|
|
} else {
|
|
FS.symlink('/dev/tty', '/dev/stdout');
|
|
}
|
|
if (Module['stderr']) {
|
|
FS.createDevice('/dev', 'stderr', null, Module['stderr']);
|
|
} else {
|
|
FS.symlink('/dev/tty1', '/dev/stderr');
|
|
}
|
|
|
|
// open default streams for the stdin, stdout and stderr devices
|
|
var stdin = FS.open('/dev/stdin', 0);
|
|
var stdout = FS.open('/dev/stdout', 1);
|
|
var stderr = FS.open('/dev/stderr', 1);
|
|
assert(stdin.fd === 0, 'invalid handle for stdin (' + stdin.fd + ')');
|
|
assert(stdout.fd === 1, 'invalid handle for stdout (' + stdout.fd + ')');
|
|
assert(stderr.fd === 2, 'invalid handle for stderr (' + stderr.fd + ')');
|
|
},ensureErrnoError:() => {
|
|
if (FS.ErrnoError) return;
|
|
FS.ErrnoError = /** @this{Object} */ function ErrnoError(errno, node) {
|
|
this.node = node;
|
|
this.setErrno = /** @this{Object} */ function(errno) {
|
|
this.errno = errno;
|
|
for (var key in ERRNO_CODES) {
|
|
if (ERRNO_CODES[key] === errno) {
|
|
this.code = key;
|
|
break;
|
|
}
|
|
}
|
|
};
|
|
this.setErrno(errno);
|
|
this.message = ERRNO_MESSAGES[errno];
|
|
|
|
// Try to get a maximally helpful stack trace. On Node.js, getting Error.stack
|
|
// now ensures it shows what we want.
|
|
if (this.stack) {
|
|
// Define the stack property for Node.js 4, which otherwise errors on the next line.
|
|
Object.defineProperty(this, "stack", { value: (new Error).stack, writable: true });
|
|
this.stack = demangleAll(this.stack);
|
|
}
|
|
};
|
|
FS.ErrnoError.prototype = new Error();
|
|
FS.ErrnoError.prototype.constructor = FS.ErrnoError;
|
|
// Some errors may happen quite a bit, to avoid overhead we reuse them (and suffer a lack of stack info)
|
|
[44].forEach((code) => {
|
|
FS.genericErrors[code] = new FS.ErrnoError(code);
|
|
FS.genericErrors[code].stack = '<generic error, no stack>';
|
|
});
|
|
},staticInit:() => {
|
|
FS.ensureErrnoError();
|
|
|
|
FS.nameTable = new Array(4096);
|
|
|
|
FS.mount(MEMFS, {}, '/');
|
|
|
|
FS.createDefaultDirectories();
|
|
FS.createDefaultDevices();
|
|
FS.createSpecialDirectories();
|
|
|
|
FS.filesystems = {
|
|
'MEMFS': MEMFS,
|
|
};
|
|
},init:(input, output, error) => {
|
|
assert(!FS.init.initialized, 'FS.init was previously called. If you want to initialize later with custom parameters, remove any earlier calls (note that one is automatically added to the generated code)');
|
|
FS.init.initialized = true;
|
|
|
|
FS.ensureErrnoError();
|
|
|
|
// Allow Module.stdin etc. to provide defaults, if none explicitly passed to us here
|
|
Module['stdin'] = input || Module['stdin'];
|
|
Module['stdout'] = output || Module['stdout'];
|
|
Module['stderr'] = error || Module['stderr'];
|
|
|
|
FS.createStandardStreams();
|
|
},quit:() => {
|
|
FS.init.initialized = false;
|
|
// Call musl-internal function to close all stdio streams, so nothing is
|
|
// left in internal buffers.
|
|
___stdio_exit();
|
|
// close all of our streams
|
|
for (var i = 0; i < FS.streams.length; i++) {
|
|
var stream = FS.streams[i];
|
|
if (!stream) {
|
|
continue;
|
|
}
|
|
FS.close(stream);
|
|
}
|
|
},getMode:(canRead, canWrite) => {
|
|
var mode = 0;
|
|
if (canRead) mode |= 292 | 73;
|
|
if (canWrite) mode |= 146;
|
|
return mode;
|
|
},findObject:(path, dontResolveLastLink) => {
|
|
var ret = FS.analyzePath(path, dontResolveLastLink);
|
|
if (ret.exists) {
|
|
return ret.object;
|
|
} else {
|
|
return null;
|
|
}
|
|
},analyzePath:(path, dontResolveLastLink) => {
|
|
// operate from within the context of the symlink's target
|
|
try {
|
|
var lookup = FS.lookupPath(path, { follow: !dontResolveLastLink });
|
|
path = lookup.path;
|
|
} catch (e) {
|
|
}
|
|
var ret = {
|
|
isRoot: false, exists: false, error: 0, name: null, path: null, object: null,
|
|
parentExists: false, parentPath: null, parentObject: null
|
|
};
|
|
try {
|
|
var lookup = FS.lookupPath(path, { parent: true });
|
|
ret.parentExists = true;
|
|
ret.parentPath = lookup.path;
|
|
ret.parentObject = lookup.node;
|
|
ret.name = PATH.basename(path);
|
|
lookup = FS.lookupPath(path, { follow: !dontResolveLastLink });
|
|
ret.exists = true;
|
|
ret.path = lookup.path;
|
|
ret.object = lookup.node;
|
|
ret.name = lookup.node.name;
|
|
ret.isRoot = lookup.path === '/';
|
|
} catch (e) {
|
|
ret.error = e.errno;
|
|
};
|
|
return ret;
|
|
},createPath:(parent, path, canRead, canWrite) => {
|
|
parent = typeof parent == 'string' ? parent : FS.getPath(parent);
|
|
var parts = path.split('/').reverse();
|
|
while (parts.length) {
|
|
var part = parts.pop();
|
|
if (!part) continue;
|
|
var current = PATH.join2(parent, part);
|
|
try {
|
|
FS.mkdir(current);
|
|
} catch (e) {
|
|
// ignore EEXIST
|
|
}
|
|
parent = current;
|
|
}
|
|
return current;
|
|
},createFile:(parent, name, properties, canRead, canWrite) => {
|
|
var path = PATH.join2(typeof parent == 'string' ? parent : FS.getPath(parent), name);
|
|
var mode = FS.getMode(canRead, canWrite);
|
|
return FS.create(path, mode);
|
|
},createDataFile:(parent, name, data, canRead, canWrite, canOwn) => {
|
|
var path = name;
|
|
if (parent) {
|
|
parent = typeof parent == 'string' ? parent : FS.getPath(parent);
|
|
path = name ? PATH.join2(parent, name) : parent;
|
|
}
|
|
var mode = FS.getMode(canRead, canWrite);
|
|
var node = FS.create(path, mode);
|
|
if (data) {
|
|
if (typeof data == 'string') {
|
|
var arr = new Array(data.length);
|
|
for (var i = 0, len = data.length; i < len; ++i) arr[i] = data.charCodeAt(i);
|
|
data = arr;
|
|
}
|
|
// make sure we can write to the file
|
|
FS.chmod(node, mode | 146);
|
|
var stream = FS.open(node, 577);
|
|
FS.write(stream, data, 0, data.length, 0, canOwn);
|
|
FS.close(stream);
|
|
FS.chmod(node, mode);
|
|
}
|
|
return node;
|
|
},createDevice:(parent, name, input, output) => {
|
|
var path = PATH.join2(typeof parent == 'string' ? parent : FS.getPath(parent), name);
|
|
var mode = FS.getMode(!!input, !!output);
|
|
if (!FS.createDevice.major) FS.createDevice.major = 64;
|
|
var dev = FS.makedev(FS.createDevice.major++, 0);
|
|
// Create a fake device that a set of stream ops to emulate
|
|
// the old behavior.
|
|
FS.registerDevice(dev, {
|
|
open: (stream) => {
|
|
stream.seekable = false;
|
|
},
|
|
close: (stream) => {
|
|
// flush any pending line data
|
|
if (output && output.buffer && output.buffer.length) {
|
|
output(10);
|
|
}
|
|
},
|
|
read: (stream, buffer, offset, length, pos /* ignored */) => {
|
|
var bytesRead = 0;
|
|
for (var i = 0; i < length; i++) {
|
|
var result;
|
|
try {
|
|
result = input();
|
|
} catch (e) {
|
|
throw new FS.ErrnoError(29);
|
|
}
|
|
if (result === undefined && bytesRead === 0) {
|
|
throw new FS.ErrnoError(6);
|
|
}
|
|
if (result === null || result === undefined) break;
|
|
bytesRead++;
|
|
buffer[offset+i] = result;
|
|
}
|
|
if (bytesRead) {
|
|
stream.node.timestamp = Date.now();
|
|
}
|
|
return bytesRead;
|
|
},
|
|
write: (stream, buffer, offset, length, pos) => {
|
|
for (var i = 0; i < length; i++) {
|
|
try {
|
|
output(buffer[offset+i]);
|
|
} catch (e) {
|
|
throw new FS.ErrnoError(29);
|
|
}
|
|
}
|
|
if (length) {
|
|
stream.node.timestamp = Date.now();
|
|
}
|
|
return i;
|
|
}
|
|
});
|
|
return FS.mkdev(path, mode, dev);
|
|
},forceLoadFile:(obj) => {
|
|
if (obj.isDevice || obj.isFolder || obj.link || obj.contents) return true;
|
|
if (typeof XMLHttpRequest != 'undefined') {
|
|
throw new Error("Lazy loading should have been performed (contents set) in createLazyFile, but it was not. Lazy loading only works in web workers. Use --embed-file or --preload-file in emcc on the main thread.");
|
|
} else if (read_) {
|
|
// Command-line.
|
|
try {
|
|
// WARNING: Can't read binary files in V8's d8 or tracemonkey's js, as
|
|
// read() will try to parse UTF8.
|
|
obj.contents = intArrayFromString(read_(obj.url), true);
|
|
obj.usedBytes = obj.contents.length;
|
|
} catch (e) {
|
|
throw new FS.ErrnoError(29);
|
|
}
|
|
} else {
|
|
throw new Error('Cannot load without read() or XMLHttpRequest.');
|
|
}
|
|
},createLazyFile:(parent, name, url, canRead, canWrite) => {
|
|
// Lazy chunked Uint8Array (implements get and length from Uint8Array). Actual getting is abstracted away for eventual reuse.
|
|
/** @constructor */
|
|
function LazyUint8Array() {
|
|
this.lengthKnown = false;
|
|
this.chunks = []; // Loaded chunks. Index is the chunk number
|
|
}
|
|
LazyUint8Array.prototype.get = /** @this{Object} */ function LazyUint8Array_get(idx) {
|
|
if (idx > this.length-1 || idx < 0) {
|
|
return undefined;
|
|
}
|
|
var chunkOffset = idx % this.chunkSize;
|
|
var chunkNum = (idx / this.chunkSize)|0;
|
|
return this.getter(chunkNum)[chunkOffset];
|
|
};
|
|
LazyUint8Array.prototype.setDataGetter = function LazyUint8Array_setDataGetter(getter) {
|
|
this.getter = getter;
|
|
};
|
|
LazyUint8Array.prototype.cacheLength = function LazyUint8Array_cacheLength() {
|
|
// Find length
|
|
var xhr = new XMLHttpRequest();
|
|
xhr.open('HEAD', url, false);
|
|
xhr.send(null);
|
|
if (!(xhr.status >= 200 && xhr.status < 300 || xhr.status === 304)) throw new Error("Couldn't load " + url + ". Status: " + xhr.status);
|
|
var datalength = Number(xhr.getResponseHeader("Content-length"));
|
|
var header;
|
|
var hasByteServing = (header = xhr.getResponseHeader("Accept-Ranges")) && header === "bytes";
|
|
var usesGzip = (header = xhr.getResponseHeader("Content-Encoding")) && header === "gzip";
|
|
|
|
var chunkSize = 1024*1024; // Chunk size in bytes
|
|
|
|
if (!hasByteServing) chunkSize = datalength;
|
|
|
|
// Function to get a range from the remote URL.
|
|
var doXHR = (from, to) => {
|
|
if (from > to) throw new Error("invalid range (" + from + ", " + to + ") or no bytes requested!");
|
|
if (to > datalength-1) throw new Error("only " + datalength + " bytes available! programmer error!");
|
|
|
|
// TODO: Use mozResponseArrayBuffer, responseStream, etc. if available.
|
|
var xhr = new XMLHttpRequest();
|
|
xhr.open('GET', url, false);
|
|
if (datalength !== chunkSize) xhr.setRequestHeader("Range", "bytes=" + from + "-" + to);
|
|
|
|
// Some hints to the browser that we want binary data.
|
|
xhr.responseType = 'arraybuffer';
|
|
if (xhr.overrideMimeType) {
|
|
xhr.overrideMimeType('text/plain; charset=x-user-defined');
|
|
}
|
|
|
|
xhr.send(null);
|
|
if (!(xhr.status >= 200 && xhr.status < 300 || xhr.status === 304)) throw new Error("Couldn't load " + url + ". Status: " + xhr.status);
|
|
if (xhr.response !== undefined) {
|
|
return new Uint8Array(/** @type{Array<number>} */(xhr.response || []));
|
|
} else {
|
|
return intArrayFromString(xhr.responseText || '', true);
|
|
}
|
|
};
|
|
var lazyArray = this;
|
|
lazyArray.setDataGetter((chunkNum) => {
|
|
var start = chunkNum * chunkSize;
|
|
var end = (chunkNum+1) * chunkSize - 1; // including this byte
|
|
end = Math.min(end, datalength-1); // if datalength-1 is selected, this is the last block
|
|
if (typeof lazyArray.chunks[chunkNum] == 'undefined') {
|
|
lazyArray.chunks[chunkNum] = doXHR(start, end);
|
|
}
|
|
if (typeof lazyArray.chunks[chunkNum] == 'undefined') throw new Error('doXHR failed!');
|
|
return lazyArray.chunks[chunkNum];
|
|
});
|
|
|
|
if (usesGzip || !datalength) {
|
|
// if the server uses gzip or doesn't supply the length, we have to download the whole file to get the (uncompressed) length
|
|
chunkSize = datalength = 1; // this will force getter(0)/doXHR do download the whole file
|
|
datalength = this.getter(0).length;
|
|
chunkSize = datalength;
|
|
out("LazyFiles on gzip forces download of the whole file when length is accessed");
|
|
}
|
|
|
|
this._length = datalength;
|
|
this._chunkSize = chunkSize;
|
|
this.lengthKnown = true;
|
|
};
|
|
if (typeof XMLHttpRequest != 'undefined') {
|
|
if (!ENVIRONMENT_IS_WORKER) throw 'Cannot do synchronous binary XHRs outside webworkers in modern browsers. Use --embed-file or --preload-file in emcc';
|
|
var lazyArray = new LazyUint8Array();
|
|
Object.defineProperties(lazyArray, {
|
|
length: {
|
|
get: /** @this{Object} */ function() {
|
|
if (!this.lengthKnown) {
|
|
this.cacheLength();
|
|
}
|
|
return this._length;
|
|
}
|
|
},
|
|
chunkSize: {
|
|
get: /** @this{Object} */ function() {
|
|
if (!this.lengthKnown) {
|
|
this.cacheLength();
|
|
}
|
|
return this._chunkSize;
|
|
}
|
|
}
|
|
});
|
|
|
|
var properties = { isDevice: false, contents: lazyArray };
|
|
} else {
|
|
var properties = { isDevice: false, url: url };
|
|
}
|
|
|
|
var node = FS.createFile(parent, name, properties, canRead, canWrite);
|
|
// This is a total hack, but I want to get this lazy file code out of the
|
|
// core of MEMFS. If we want to keep this lazy file concept I feel it should
|
|
// be its own thin LAZYFS proxying calls to MEMFS.
|
|
if (properties.contents) {
|
|
node.contents = properties.contents;
|
|
} else if (properties.url) {
|
|
node.contents = null;
|
|
node.url = properties.url;
|
|
}
|
|
// Add a function that defers querying the file size until it is asked the first time.
|
|
Object.defineProperties(node, {
|
|
usedBytes: {
|
|
get: /** @this {FSNode} */ function() { return this.contents.length; }
|
|
}
|
|
});
|
|
// override each stream op with one that tries to force load the lazy file first
|
|
var stream_ops = {};
|
|
var keys = Object.keys(node.stream_ops);
|
|
keys.forEach((key) => {
|
|
var fn = node.stream_ops[key];
|
|
stream_ops[key] = function forceLoadLazyFile() {
|
|
FS.forceLoadFile(node);
|
|
return fn.apply(null, arguments);
|
|
};
|
|
});
|
|
// use a custom read function
|
|
stream_ops.read = (stream, buffer, offset, length, position) => {
|
|
FS.forceLoadFile(node);
|
|
var contents = stream.node.contents;
|
|
if (position >= contents.length)
|
|
return 0;
|
|
var size = Math.min(contents.length - position, length);
|
|
assert(size >= 0);
|
|
if (contents.slice) { // normal array
|
|
for (var i = 0; i < size; i++) {
|
|
buffer[offset + i] = contents[position + i];
|
|
}
|
|
} else {
|
|
for (var i = 0; i < size; i++) { // LazyUint8Array from sync binary XHR
|
|
buffer[offset + i] = contents.get(position + i);
|
|
}
|
|
}
|
|
return size;
|
|
};
|
|
node.stream_ops = stream_ops;
|
|
return node;
|
|
},createPreloadedFile:(parent, name, url, canRead, canWrite, onload, onerror, dontCreateFile, canOwn, preFinish) => {
|
|
// TODO we should allow people to just pass in a complete filename instead
|
|
// of parent and name being that we just join them anyways
|
|
var fullname = name ? PATH_FS.resolve(PATH.join2(parent, name)) : parent;
|
|
var dep = getUniqueRunDependency('cp ' + fullname); // might have several active requests for the same fullname
|
|
function processData(byteArray) {
|
|
function finish(byteArray) {
|
|
if (preFinish) preFinish();
|
|
if (!dontCreateFile) {
|
|
FS.createDataFile(parent, name, byteArray, canRead, canWrite, canOwn);
|
|
}
|
|
if (onload) onload();
|
|
removeRunDependency(dep);
|
|
}
|
|
if (Browser.handledByPreloadPlugin(byteArray, fullname, finish, () => {
|
|
if (onerror) onerror();
|
|
removeRunDependency(dep);
|
|
})) {
|
|
return;
|
|
}
|
|
finish(byteArray);
|
|
}
|
|
addRunDependency(dep);
|
|
if (typeof url == 'string') {
|
|
asyncLoad(url, (byteArray) => processData(byteArray), onerror);
|
|
} else {
|
|
processData(url);
|
|
}
|
|
},indexedDB:() => {
|
|
return window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB || window.msIndexedDB;
|
|
},DB_NAME:() => {
|
|
return 'EM_FS_' + window.location.pathname;
|
|
},DB_VERSION:20,DB_STORE_NAME:"FILE_DATA",saveFilesToDB:(paths, onload, onerror) => {
|
|
onload = onload || (() => {});
|
|
onerror = onerror || (() => {});
|
|
var indexedDB = FS.indexedDB();
|
|
try {
|
|
var openRequest = indexedDB.open(FS.DB_NAME(), FS.DB_VERSION);
|
|
} catch (e) {
|
|
return onerror(e);
|
|
}
|
|
openRequest.onupgradeneeded = () => {
|
|
out('creating db');
|
|
var db = openRequest.result;
|
|
db.createObjectStore(FS.DB_STORE_NAME);
|
|
};
|
|
openRequest.onsuccess = () => {
|
|
var db = openRequest.result;
|
|
var transaction = db.transaction([FS.DB_STORE_NAME], 'readwrite');
|
|
var files = transaction.objectStore(FS.DB_STORE_NAME);
|
|
var ok = 0, fail = 0, total = paths.length;
|
|
function finish() {
|
|
if (fail == 0) onload(); else onerror();
|
|
}
|
|
paths.forEach((path) => {
|
|
var putRequest = files.put(FS.analyzePath(path).object.contents, path);
|
|
putRequest.onsuccess = () => { ok++; if (ok + fail == total) finish() };
|
|
putRequest.onerror = () => { fail++; if (ok + fail == total) finish() };
|
|
});
|
|
transaction.onerror = onerror;
|
|
};
|
|
openRequest.onerror = onerror;
|
|
},loadFilesFromDB:(paths, onload, onerror) => {
|
|
onload = onload || (() => {});
|
|
onerror = onerror || (() => {});
|
|
var indexedDB = FS.indexedDB();
|
|
try {
|
|
var openRequest = indexedDB.open(FS.DB_NAME(), FS.DB_VERSION);
|
|
} catch (e) {
|
|
return onerror(e);
|
|
}
|
|
openRequest.onupgradeneeded = onerror; // no database to load from
|
|
openRequest.onsuccess = () => {
|
|
var db = openRequest.result;
|
|
try {
|
|
var transaction = db.transaction([FS.DB_STORE_NAME], 'readonly');
|
|
} catch(e) {
|
|
onerror(e);
|
|
return;
|
|
}
|
|
var files = transaction.objectStore(FS.DB_STORE_NAME);
|
|
var ok = 0, fail = 0, total = paths.length;
|
|
function finish() {
|
|
if (fail == 0) onload(); else onerror();
|
|
}
|
|
paths.forEach((path) => {
|
|
var getRequest = files.get(path);
|
|
getRequest.onsuccess = () => {
|
|
if (FS.analyzePath(path).exists) {
|
|
FS.unlink(path);
|
|
}
|
|
FS.createDataFile(PATH.dirname(path), PATH.basename(path), getRequest.result, true, true, true);
|
|
ok++;
|
|
if (ok + fail == total) finish();
|
|
};
|
|
getRequest.onerror = () => { fail++; if (ok + fail == total) finish() };
|
|
});
|
|
transaction.onerror = onerror;
|
|
};
|
|
openRequest.onerror = onerror;
|
|
},absolutePath:() => {
|
|
abort('FS.absolutePath has been removed; use PATH_FS.resolve instead');
|
|
},createFolder:() => {
|
|
abort('FS.createFolder has been removed; use FS.mkdir instead');
|
|
},createLink:() => {
|
|
abort('FS.createLink has been removed; use FS.symlink instead');
|
|
},joinPath:() => {
|
|
abort('FS.joinPath has been removed; use PATH.join instead');
|
|
},mmapAlloc:() => {
|
|
abort('FS.mmapAlloc has been replaced by the top level function mmapAlloc');
|
|
},standardizePath:() => {
|
|
abort('FS.standardizePath has been removed; use PATH.normalize instead');
|
|
}};
|
|
var SYSCALLS = {DEFAULT_POLLMASK:5,calculateAt:function(dirfd, path, allowEmpty) {
|
|
if (path[0] === '/') {
|
|
return path;
|
|
}
|
|
// relative path
|
|
var dir;
|
|
if (dirfd === -100) {
|
|
dir = FS.cwd();
|
|
} else {
|
|
var dirstream = FS.getStream(dirfd);
|
|
if (!dirstream) throw new FS.ErrnoError(8);
|
|
dir = dirstream.path;
|
|
}
|
|
if (path.length == 0) {
|
|
if (!allowEmpty) {
|
|
throw new FS.ErrnoError(44);;
|
|
}
|
|
return dir;
|
|
}
|
|
return PATH.join2(dir, path);
|
|
},doStat:function(func, path, buf) {
|
|
try {
|
|
var stat = func(path);
|
|
} catch (e) {
|
|
if (e && e.node && PATH.normalize(path) !== PATH.normalize(FS.getPath(e.node))) {
|
|
// an error occurred while trying to look up the path; we should just report ENOTDIR
|
|
return -54;
|
|
}
|
|
throw e;
|
|
}
|
|
HEAP32[((buf)>>2)] = stat.dev;
|
|
HEAP32[(((buf)+(4))>>2)] = 0;
|
|
HEAP32[(((buf)+(8))>>2)] = stat.ino;
|
|
HEAP32[(((buf)+(12))>>2)] = stat.mode;
|
|
HEAP32[(((buf)+(16))>>2)] = stat.nlink;
|
|
HEAP32[(((buf)+(20))>>2)] = stat.uid;
|
|
HEAP32[(((buf)+(24))>>2)] = stat.gid;
|
|
HEAP32[(((buf)+(28))>>2)] = stat.rdev;
|
|
HEAP32[(((buf)+(32))>>2)] = 0;
|
|
(tempI64 = [stat.size>>>0,(tempDouble=stat.size,(+(Math.abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? ((Math.min((+(Math.floor((tempDouble)/4294967296.0))), 4294967295.0))|0)>>>0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>0) : 0)],HEAP32[(((buf)+(40))>>2)] = tempI64[0],HEAP32[(((buf)+(44))>>2)] = tempI64[1]);
|
|
HEAP32[(((buf)+(48))>>2)] = 4096;
|
|
HEAP32[(((buf)+(52))>>2)] = stat.blocks;
|
|
HEAP32[(((buf)+(56))>>2)] = (stat.atime.getTime() / 1000)|0;
|
|
HEAP32[(((buf)+(60))>>2)] = 0;
|
|
HEAP32[(((buf)+(64))>>2)] = (stat.mtime.getTime() / 1000)|0;
|
|
HEAP32[(((buf)+(68))>>2)] = 0;
|
|
HEAP32[(((buf)+(72))>>2)] = (stat.ctime.getTime() / 1000)|0;
|
|
HEAP32[(((buf)+(76))>>2)] = 0;
|
|
(tempI64 = [stat.ino>>>0,(tempDouble=stat.ino,(+(Math.abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? ((Math.min((+(Math.floor((tempDouble)/4294967296.0))), 4294967295.0))|0)>>>0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>0) : 0)],HEAP32[(((buf)+(80))>>2)] = tempI64[0],HEAP32[(((buf)+(84))>>2)] = tempI64[1]);
|
|
return 0;
|
|
},doMsync:function(addr, stream, len, flags, offset) {
|
|
var buffer = HEAPU8.slice(addr, addr + len);
|
|
FS.msync(stream, buffer, offset, len, flags);
|
|
},doMkdir:function(path, mode) {
|
|
// remove a trailing slash, if one - /a/b/ has basename of '', but
|
|
// we want to create b in the context of this function
|
|
path = PATH.normalize(path);
|
|
if (path[path.length-1] === '/') path = path.substr(0, path.length-1);
|
|
FS.mkdir(path, mode, 0);
|
|
return 0;
|
|
},doMknod:function(path, mode, dev) {
|
|
// we don't want this in the JS API as it uses mknod to create all nodes.
|
|
switch (mode & 61440) {
|
|
case 32768:
|
|
case 8192:
|
|
case 24576:
|
|
case 4096:
|
|
case 49152:
|
|
break;
|
|
default: return -28;
|
|
}
|
|
FS.mknod(path, mode, dev);
|
|
return 0;
|
|
},doReadlink:function(path, buf, bufsize) {
|
|
if (bufsize <= 0) return -28;
|
|
var ret = FS.readlink(path);
|
|
|
|
var len = Math.min(bufsize, lengthBytesUTF8(ret));
|
|
var endChar = HEAP8[buf+len];
|
|
stringToUTF8(ret, buf, bufsize+1);
|
|
// readlink is one of the rare functions that write out a C string, but does never append a null to the output buffer(!)
|
|
// stringToUTF8() always appends a null byte, so restore the character under the null byte after the write.
|
|
HEAP8[buf+len] = endChar;
|
|
|
|
return len;
|
|
},doAccess:function(path, amode) {
|
|
if (amode & ~7) {
|
|
// need a valid mode
|
|
return -28;
|
|
}
|
|
var lookup = FS.lookupPath(path, { follow: true });
|
|
var node = lookup.node;
|
|
if (!node) {
|
|
return -44;
|
|
}
|
|
var perms = '';
|
|
if (amode & 4) perms += 'r';
|
|
if (amode & 2) perms += 'w';
|
|
if (amode & 1) perms += 'x';
|
|
if (perms /* otherwise, they've just passed F_OK */ && FS.nodePermissions(node, perms)) {
|
|
return -2;
|
|
}
|
|
return 0;
|
|
},doDup:function(path, flags, suggestFD) {
|
|
var suggest = FS.getStream(suggestFD);
|
|
if (suggest) FS.close(suggest);
|
|
return FS.open(path, flags, 0, suggestFD, suggestFD).fd;
|
|
},doReadv:function(stream, iov, iovcnt, offset) {
|
|
var ret = 0;
|
|
for (var i = 0; i < iovcnt; i++) {
|
|
var ptr = HEAP32[(((iov)+(i*8))>>2)];
|
|
var len = HEAP32[(((iov)+(i*8 + 4))>>2)];
|
|
var curr = FS.read(stream, HEAP8,ptr, len, offset);
|
|
if (curr < 0) return -1;
|
|
ret += curr;
|
|
if (curr < len) break; // nothing more to read
|
|
}
|
|
return ret;
|
|
},doWritev:function(stream, iov, iovcnt, offset) {
|
|
var ret = 0;
|
|
for (var i = 0; i < iovcnt; i++) {
|
|
var ptr = HEAP32[(((iov)+(i*8))>>2)];
|
|
var len = HEAP32[(((iov)+(i*8 + 4))>>2)];
|
|
var curr = FS.write(stream, HEAP8,ptr, len, offset);
|
|
if (curr < 0) return -1;
|
|
ret += curr;
|
|
}
|
|
return ret;
|
|
},varargs:undefined,get:function() {
|
|
assert(SYSCALLS.varargs != undefined);
|
|
SYSCALLS.varargs += 4;
|
|
var ret = HEAP32[(((SYSCALLS.varargs)-(4))>>2)];
|
|
return ret;
|
|
},getStr:function(ptr) {
|
|
var ret = UTF8ToString(ptr);
|
|
return ret;
|
|
},getStreamFromFD:function(fd) {
|
|
var stream = FS.getStream(fd);
|
|
if (!stream) throw new FS.ErrnoError(8);
|
|
return stream;
|
|
},get64:function(low, high) {
|
|
if (low >= 0) assert(high === 0);
|
|
else assert(high === -1);
|
|
return low;
|
|
}};
|
|
function _environ_get(__environ, environ_buf) {
|
|
var bufSize = 0;
|
|
getEnvStrings().forEach(function(string, i) {
|
|
var ptr = environ_buf + bufSize;
|
|
HEAP32[(((__environ)+(i * 4))>>2)] = ptr;
|
|
writeAsciiToMemory(string, ptr);
|
|
bufSize += string.length + 1;
|
|
});
|
|
return 0;
|
|
}
|
|
|
|
function _environ_sizes_get(penviron_count, penviron_buf_size) {
|
|
var strings = getEnvStrings();
|
|
HEAP32[((penviron_count)>>2)] = strings.length;
|
|
var bufSize = 0;
|
|
strings.forEach(function(string) {
|
|
bufSize += string.length + 1;
|
|
});
|
|
HEAP32[((penviron_buf_size)>>2)] = bufSize;
|
|
return 0;
|
|
}
|
|
|
|
function _fd_close(fd) {
|
|
try {
|
|
|
|
var stream = SYSCALLS.getStreamFromFD(fd);
|
|
FS.close(stream);
|
|
return 0;
|
|
} catch (e) {
|
|
if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e;
|
|
return e.errno;
|
|
}
|
|
}
|
|
|
|
function _fd_read(fd, iov, iovcnt, pnum) {
|
|
try {
|
|
|
|
var stream = SYSCALLS.getStreamFromFD(fd);
|
|
var num = SYSCALLS.doReadv(stream, iov, iovcnt);
|
|
HEAP32[((pnum)>>2)] = num;
|
|
return 0;
|
|
} catch (e) {
|
|
if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e;
|
|
return e.errno;
|
|
}
|
|
}
|
|
|
|
function _fd_seek(fd, offset_low, offset_high, whence, newOffset) {
|
|
try {
|
|
|
|
|
|
var stream = SYSCALLS.getStreamFromFD(fd);
|
|
var HIGH_OFFSET = 0x100000000; // 2^32
|
|
// use an unsigned operator on low and shift high by 32-bits
|
|
var offset = offset_high * HIGH_OFFSET + (offset_low >>> 0);
|
|
|
|
var DOUBLE_LIMIT = 0x20000000000000; // 2^53
|
|
// we also check for equality since DOUBLE_LIMIT + 1 == DOUBLE_LIMIT
|
|
if (offset <= -DOUBLE_LIMIT || offset >= DOUBLE_LIMIT) {
|
|
return -61;
|
|
}
|
|
|
|
FS.llseek(stream, offset, whence);
|
|
(tempI64 = [stream.position>>>0,(tempDouble=stream.position,(+(Math.abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? ((Math.min((+(Math.floor((tempDouble)/4294967296.0))), 4294967295.0))|0)>>>0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>0) : 0)],HEAP32[((newOffset)>>2)] = tempI64[0],HEAP32[(((newOffset)+(4))>>2)] = tempI64[1]);
|
|
if (stream.getdents && offset === 0 && whence === 0) stream.getdents = null; // reset readdir state
|
|
return 0;
|
|
} catch (e) {
|
|
if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e;
|
|
return e.errno;
|
|
}
|
|
}
|
|
|
|
function _fd_write(fd, iov, iovcnt, pnum) {
|
|
try {
|
|
|
|
;
|
|
var stream = SYSCALLS.getStreamFromFD(fd);
|
|
var num = SYSCALLS.doWritev(stream, iov, iovcnt);
|
|
HEAP32[((pnum)>>2)] = num;
|
|
return 0;
|
|
} catch (e) {
|
|
if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e;
|
|
return e.errno;
|
|
}
|
|
}
|
|
|
|
function _setTempRet0(val) {
|
|
setTempRet0(val);
|
|
}
|
|
|
|
function __isLeapYear(year) {
|
|
return year%4 === 0 && (year%100 !== 0 || year%400 === 0);
|
|
}
|
|
|
|
function __arraySum(array, index) {
|
|
var sum = 0;
|
|
for (var i = 0; i <= index; sum += array[i++]) {
|
|
// no-op
|
|
}
|
|
return sum;
|
|
}
|
|
|
|
var __MONTH_DAYS_LEAP = [31,29,31,30,31,30,31,31,30,31,30,31];
|
|
|
|
var __MONTH_DAYS_REGULAR = [31,28,31,30,31,30,31,31,30,31,30,31];
|
|
function __addDays(date, days) {
|
|
var newDate = new Date(date.getTime());
|
|
while (days > 0) {
|
|
var leap = __isLeapYear(newDate.getFullYear());
|
|
var currentMonth = newDate.getMonth();
|
|
var daysInCurrentMonth = (leap ? __MONTH_DAYS_LEAP : __MONTH_DAYS_REGULAR)[currentMonth];
|
|
|
|
if (days > daysInCurrentMonth-newDate.getDate()) {
|
|
// we spill over to next month
|
|
days -= (daysInCurrentMonth-newDate.getDate()+1);
|
|
newDate.setDate(1);
|
|
if (currentMonth < 11) {
|
|
newDate.setMonth(currentMonth+1)
|
|
} else {
|
|
newDate.setMonth(0);
|
|
newDate.setFullYear(newDate.getFullYear()+1);
|
|
}
|
|
} else {
|
|
// we stay in current month
|
|
newDate.setDate(newDate.getDate()+days);
|
|
return newDate;
|
|
}
|
|
}
|
|
|
|
return newDate;
|
|
}
|
|
function _strftime(s, maxsize, format, tm) {
|
|
// size_t strftime(char *restrict s, size_t maxsize, const char *restrict format, const struct tm *restrict timeptr);
|
|
// http://pubs.opengroup.org/onlinepubs/009695399/functions/strftime.html
|
|
|
|
var tm_zone = HEAP32[(((tm)+(40))>>2)];
|
|
|
|
var date = {
|
|
tm_sec: HEAP32[((tm)>>2)],
|
|
tm_min: HEAP32[(((tm)+(4))>>2)],
|
|
tm_hour: HEAP32[(((tm)+(8))>>2)],
|
|
tm_mday: HEAP32[(((tm)+(12))>>2)],
|
|
tm_mon: HEAP32[(((tm)+(16))>>2)],
|
|
tm_year: HEAP32[(((tm)+(20))>>2)],
|
|
tm_wday: HEAP32[(((tm)+(24))>>2)],
|
|
tm_yday: HEAP32[(((tm)+(28))>>2)],
|
|
tm_isdst: HEAP32[(((tm)+(32))>>2)],
|
|
tm_gmtoff: HEAP32[(((tm)+(36))>>2)],
|
|
tm_zone: tm_zone ? UTF8ToString(tm_zone) : ''
|
|
};
|
|
|
|
var pattern = UTF8ToString(format);
|
|
|
|
// expand format
|
|
var EXPANSION_RULES_1 = {
|
|
'%c': '%a %b %d %H:%M:%S %Y', // Replaced by the locale's appropriate date and time representation - e.g., Mon Aug 3 14:02:01 2013
|
|
'%D': '%m/%d/%y', // Equivalent to %m / %d / %y
|
|
'%F': '%Y-%m-%d', // Equivalent to %Y - %m - %d
|
|
'%h': '%b', // Equivalent to %b
|
|
'%r': '%I:%M:%S %p', // Replaced by the time in a.m. and p.m. notation
|
|
'%R': '%H:%M', // Replaced by the time in 24-hour notation
|
|
'%T': '%H:%M:%S', // Replaced by the time
|
|
'%x': '%m/%d/%y', // Replaced by the locale's appropriate date representation
|
|
'%X': '%H:%M:%S', // Replaced by the locale's appropriate time representation
|
|
// Modified Conversion Specifiers
|
|
'%Ec': '%c', // Replaced by the locale's alternative appropriate date and time representation.
|
|
'%EC': '%C', // Replaced by the name of the base year (period) in the locale's alternative representation.
|
|
'%Ex': '%m/%d/%y', // Replaced by the locale's alternative date representation.
|
|
'%EX': '%H:%M:%S', // Replaced by the locale's alternative time representation.
|
|
'%Ey': '%y', // Replaced by the offset from %EC (year only) in the locale's alternative representation.
|
|
'%EY': '%Y', // Replaced by the full alternative year representation.
|
|
'%Od': '%d', // Replaced by the day of the month, using the locale's alternative numeric symbols, filled as needed with leading zeros if there is any alternative symbol for zero; otherwise, with leading <space> characters.
|
|
'%Oe': '%e', // Replaced by the day of the month, using the locale's alternative numeric symbols, filled as needed with leading <space> characters.
|
|
'%OH': '%H', // Replaced by the hour (24-hour clock) using the locale's alternative numeric symbols.
|
|
'%OI': '%I', // Replaced by the hour (12-hour clock) using the locale's alternative numeric symbols.
|
|
'%Om': '%m', // Replaced by the month using the locale's alternative numeric symbols.
|
|
'%OM': '%M', // Replaced by the minutes using the locale's alternative numeric symbols.
|
|
'%OS': '%S', // Replaced by the seconds using the locale's alternative numeric symbols.
|
|
'%Ou': '%u', // Replaced by the weekday as a number in the locale's alternative representation (Monday=1).
|
|
'%OU': '%U', // Replaced by the week number of the year (Sunday as the first day of the week, rules corresponding to %U ) using the locale's alternative numeric symbols.
|
|
'%OV': '%V', // Replaced by the week number of the year (Monday as the first day of the week, rules corresponding to %V ) using the locale's alternative numeric symbols.
|
|
'%Ow': '%w', // Replaced by the number of the weekday (Sunday=0) using the locale's alternative numeric symbols.
|
|
'%OW': '%W', // Replaced by the week number of the year (Monday as the first day of the week) using the locale's alternative numeric symbols.
|
|
'%Oy': '%y', // Replaced by the year (offset from %C ) using the locale's alternative numeric symbols.
|
|
};
|
|
for (var rule in EXPANSION_RULES_1) {
|
|
pattern = pattern.replace(new RegExp(rule, 'g'), EXPANSION_RULES_1[rule]);
|
|
}
|
|
|
|
var WEEKDAYS = ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'];
|
|
var MONTHS = ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'];
|
|
|
|
function leadingSomething(value, digits, character) {
|
|
var str = typeof value == 'number' ? value.toString() : (value || '');
|
|
while (str.length < digits) {
|
|
str = character[0]+str;
|
|
}
|
|
return str;
|
|
}
|
|
|
|
function leadingNulls(value, digits) {
|
|
return leadingSomething(value, digits, '0');
|
|
}
|
|
|
|
function compareByDay(date1, date2) {
|
|
function sgn(value) {
|
|
return value < 0 ? -1 : (value > 0 ? 1 : 0);
|
|
}
|
|
|
|
var compare;
|
|
if ((compare = sgn(date1.getFullYear()-date2.getFullYear())) === 0) {
|
|
if ((compare = sgn(date1.getMonth()-date2.getMonth())) === 0) {
|
|
compare = sgn(date1.getDate()-date2.getDate());
|
|
}
|
|
}
|
|
return compare;
|
|
}
|
|
|
|
function getFirstWeekStartDate(janFourth) {
|
|
switch (janFourth.getDay()) {
|
|
case 0: // Sunday
|
|
return new Date(janFourth.getFullYear()-1, 11, 29);
|
|
case 1: // Monday
|
|
return janFourth;
|
|
case 2: // Tuesday
|
|
return new Date(janFourth.getFullYear(), 0, 3);
|
|
case 3: // Wednesday
|
|
return new Date(janFourth.getFullYear(), 0, 2);
|
|
case 4: // Thursday
|
|
return new Date(janFourth.getFullYear(), 0, 1);
|
|
case 5: // Friday
|
|
return new Date(janFourth.getFullYear()-1, 11, 31);
|
|
case 6: // Saturday
|
|
return new Date(janFourth.getFullYear()-1, 11, 30);
|
|
}
|
|
}
|
|
|
|
function getWeekBasedYear(date) {
|
|
var thisDate = __addDays(new Date(date.tm_year+1900, 0, 1), date.tm_yday);
|
|
|
|
var janFourthThisYear = new Date(thisDate.getFullYear(), 0, 4);
|
|
var janFourthNextYear = new Date(thisDate.getFullYear()+1, 0, 4);
|
|
|
|
var firstWeekStartThisYear = getFirstWeekStartDate(janFourthThisYear);
|
|
var firstWeekStartNextYear = getFirstWeekStartDate(janFourthNextYear);
|
|
|
|
if (compareByDay(firstWeekStartThisYear, thisDate) <= 0) {
|
|
// this date is after the start of the first week of this year
|
|
if (compareByDay(firstWeekStartNextYear, thisDate) <= 0) {
|
|
return thisDate.getFullYear()+1;
|
|
} else {
|
|
return thisDate.getFullYear();
|
|
}
|
|
} else {
|
|
return thisDate.getFullYear()-1;
|
|
}
|
|
}
|
|
|
|
var EXPANSION_RULES_2 = {
|
|
'%a': function(date) {
|
|
return WEEKDAYS[date.tm_wday].substring(0,3);
|
|
},
|
|
'%A': function(date) {
|
|
return WEEKDAYS[date.tm_wday];
|
|
},
|
|
'%b': function(date) {
|
|
return MONTHS[date.tm_mon].substring(0,3);
|
|
},
|
|
'%B': function(date) {
|
|
return MONTHS[date.tm_mon];
|
|
},
|
|
'%C': function(date) {
|
|
var year = date.tm_year+1900;
|
|
return leadingNulls((year/100)|0,2);
|
|
},
|
|
'%d': function(date) {
|
|
return leadingNulls(date.tm_mday, 2);
|
|
},
|
|
'%e': function(date) {
|
|
return leadingSomething(date.tm_mday, 2, ' ');
|
|
},
|
|
'%g': function(date) {
|
|
// %g, %G, and %V give values according to the ISO 8601:2000 standard week-based year.
|
|
// In this system, weeks begin on a Monday and week 1 of the year is the week that includes
|
|
// January 4th, which is also the week that includes the first Thursday of the year, and
|
|
// is also the first week that contains at least four days in the year.
|
|
// If the first Monday of January is the 2nd, 3rd, or 4th, the preceding days are part of
|
|
// the last week of the preceding year; thus, for Saturday 2nd January 1999,
|
|
// %G is replaced by 1998 and %V is replaced by 53. If December 29th, 30th,
|
|
// or 31st is a Monday, it and any following days are part of week 1 of the following year.
|
|
// Thus, for Tuesday 30th December 1997, %G is replaced by 1998 and %V is replaced by 01.
|
|
|
|
return getWeekBasedYear(date).toString().substring(2);
|
|
},
|
|
'%G': function(date) {
|
|
return getWeekBasedYear(date);
|
|
},
|
|
'%H': function(date) {
|
|
return leadingNulls(date.tm_hour, 2);
|
|
},
|
|
'%I': function(date) {
|
|
var twelveHour = date.tm_hour;
|
|
if (twelveHour == 0) twelveHour = 12;
|
|
else if (twelveHour > 12) twelveHour -= 12;
|
|
return leadingNulls(twelveHour, 2);
|
|
},
|
|
'%j': function(date) {
|
|
// Day of the year (001-366)
|
|
return leadingNulls(date.tm_mday+__arraySum(__isLeapYear(date.tm_year+1900) ? __MONTH_DAYS_LEAP : __MONTH_DAYS_REGULAR, date.tm_mon-1), 3);
|
|
},
|
|
'%m': function(date) {
|
|
return leadingNulls(date.tm_mon+1, 2);
|
|
},
|
|
'%M': function(date) {
|
|
return leadingNulls(date.tm_min, 2);
|
|
},
|
|
'%n': function() {
|
|
return '\n';
|
|
},
|
|
'%p': function(date) {
|
|
if (date.tm_hour >= 0 && date.tm_hour < 12) {
|
|
return 'AM';
|
|
} else {
|
|
return 'PM';
|
|
}
|
|
},
|
|
'%S': function(date) {
|
|
return leadingNulls(date.tm_sec, 2);
|
|
},
|
|
'%t': function() {
|
|
return '\t';
|
|
},
|
|
'%u': function(date) {
|
|
return date.tm_wday || 7;
|
|
},
|
|
'%U': function(date) {
|
|
// Replaced by the week number of the year as a decimal number [00,53].
|
|
// The first Sunday of January is the first day of week 1;
|
|
// days in the new year before this are in week 0. [ tm_year, tm_wday, tm_yday]
|
|
var janFirst = new Date(date.tm_year+1900, 0, 1);
|
|
var firstSunday = janFirst.getDay() === 0 ? janFirst : __addDays(janFirst, 7-janFirst.getDay());
|
|
var endDate = new Date(date.tm_year+1900, date.tm_mon, date.tm_mday);
|
|
|
|
// is target date after the first Sunday?
|
|
if (compareByDay(firstSunday, endDate) < 0) {
|
|
// calculate difference in days between first Sunday and endDate
|
|
var februaryFirstUntilEndMonth = __arraySum(__isLeapYear(endDate.getFullYear()) ? __MONTH_DAYS_LEAP : __MONTH_DAYS_REGULAR, endDate.getMonth()-1)-31;
|
|
var firstSundayUntilEndJanuary = 31-firstSunday.getDate();
|
|
var days = firstSundayUntilEndJanuary+februaryFirstUntilEndMonth+endDate.getDate();
|
|
return leadingNulls(Math.ceil(days/7), 2);
|
|
}
|
|
|
|
return compareByDay(firstSunday, janFirst) === 0 ? '01': '00';
|
|
},
|
|
'%V': function(date) {
|
|
// Replaced by the week number of the year (Monday as the first day of the week)
|
|
// as a decimal number [01,53]. If the week containing 1 January has four
|
|
// or more days in the new year, then it is considered week 1.
|
|
// Otherwise, it is the last week of the previous year, and the next week is week 1.
|
|
// Both January 4th and the first Thursday of January are always in week 1. [ tm_year, tm_wday, tm_yday]
|
|
var janFourthThisYear = new Date(date.tm_year+1900, 0, 4);
|
|
var janFourthNextYear = new Date(date.tm_year+1901, 0, 4);
|
|
|
|
var firstWeekStartThisYear = getFirstWeekStartDate(janFourthThisYear);
|
|
var firstWeekStartNextYear = getFirstWeekStartDate(janFourthNextYear);
|
|
|
|
var endDate = __addDays(new Date(date.tm_year+1900, 0, 1), date.tm_yday);
|
|
|
|
if (compareByDay(endDate, firstWeekStartThisYear) < 0) {
|
|
// if given date is before this years first week, then it belongs to the 53rd week of last year
|
|
return '53';
|
|
}
|
|
|
|
if (compareByDay(firstWeekStartNextYear, endDate) <= 0) {
|
|
// if given date is after next years first week, then it belongs to the 01th week of next year
|
|
return '01';
|
|
}
|
|
|
|
// given date is in between CW 01..53 of this calendar year
|
|
var daysDifference;
|
|
if (firstWeekStartThisYear.getFullYear() < date.tm_year+1900) {
|
|
// first CW of this year starts last year
|
|
daysDifference = date.tm_yday+32-firstWeekStartThisYear.getDate()
|
|
} else {
|
|
// first CW of this year starts this year
|
|
daysDifference = date.tm_yday+1-firstWeekStartThisYear.getDate();
|
|
}
|
|
return leadingNulls(Math.ceil(daysDifference/7), 2);
|
|
},
|
|
'%w': function(date) {
|
|
return date.tm_wday;
|
|
},
|
|
'%W': function(date) {
|
|
// Replaced by the week number of the year as a decimal number [00,53].
|
|
// The first Monday of January is the first day of week 1;
|
|
// days in the new year before this are in week 0. [ tm_year, tm_wday, tm_yday]
|
|
var janFirst = new Date(date.tm_year, 0, 1);
|
|
var firstMonday = janFirst.getDay() === 1 ? janFirst : __addDays(janFirst, janFirst.getDay() === 0 ? 1 : 7-janFirst.getDay()+1);
|
|
var endDate = new Date(date.tm_year+1900, date.tm_mon, date.tm_mday);
|
|
|
|
// is target date after the first Monday?
|
|
if (compareByDay(firstMonday, endDate) < 0) {
|
|
var februaryFirstUntilEndMonth = __arraySum(__isLeapYear(endDate.getFullYear()) ? __MONTH_DAYS_LEAP : __MONTH_DAYS_REGULAR, endDate.getMonth()-1)-31;
|
|
var firstMondayUntilEndJanuary = 31-firstMonday.getDate();
|
|
var days = firstMondayUntilEndJanuary+februaryFirstUntilEndMonth+endDate.getDate();
|
|
return leadingNulls(Math.ceil(days/7), 2);
|
|
}
|
|
return compareByDay(firstMonday, janFirst) === 0 ? '01': '00';
|
|
},
|
|
'%y': function(date) {
|
|
// Replaced by the last two digits of the year as a decimal number [00,99]. [ tm_year]
|
|
return (date.tm_year+1900).toString().substring(2);
|
|
},
|
|
'%Y': function(date) {
|
|
// Replaced by the year as a decimal number (for example, 1997). [ tm_year]
|
|
return date.tm_year+1900;
|
|
},
|
|
'%z': function(date) {
|
|
// Replaced by the offset from UTC in the ISO 8601:2000 standard format ( +hhmm or -hhmm ).
|
|
// For example, "-0430" means 4 hours 30 minutes behind UTC (west of Greenwich).
|
|
var off = date.tm_gmtoff;
|
|
var ahead = off >= 0;
|
|
off = Math.abs(off) / 60;
|
|
// convert from minutes into hhmm format (which means 60 minutes = 100 units)
|
|
off = (off / 60)*100 + (off % 60);
|
|
return (ahead ? '+' : '-') + String("0000" + off).slice(-4);
|
|
},
|
|
'%Z': function(date) {
|
|
return date.tm_zone;
|
|
},
|
|
'%%': function() {
|
|
return '%';
|
|
}
|
|
};
|
|
|
|
// Replace %% with a pair of NULLs (which cannot occur in a C string), then
|
|
// re-inject them after processing.
|
|
pattern = pattern.replace(/%%/g, '\0\0')
|
|
for (var rule in EXPANSION_RULES_2) {
|
|
if (pattern.includes(rule)) {
|
|
pattern = pattern.replace(new RegExp(rule, 'g'), EXPANSION_RULES_2[rule](date));
|
|
}
|
|
}
|
|
pattern = pattern.replace(/\0\0/g, '%')
|
|
|
|
var bytes = intArrayFromString(pattern, false);
|
|
if (bytes.length > maxsize) {
|
|
return 0;
|
|
}
|
|
|
|
writeArrayToMemory(bytes, s);
|
|
return bytes.length-1;
|
|
}
|
|
function _strftime_l(s, maxsize, format, tm) {
|
|
return _strftime(s, maxsize, format, tm); // no locale support yet
|
|
}
|
|
|
|
var FSNode = /** @constructor */ function(parent, name, mode, rdev) {
|
|
if (!parent) {
|
|
parent = this; // root node sets parent to itself
|
|
}
|
|
this.parent = parent;
|
|
this.mount = parent.mount;
|
|
this.mounted = null;
|
|
this.id = FS.nextInode++;
|
|
this.name = name;
|
|
this.mode = mode;
|
|
this.node_ops = {};
|
|
this.stream_ops = {};
|
|
this.rdev = rdev;
|
|
};
|
|
var readMode = 292/*292*/ | 73/*73*/;
|
|
var writeMode = 146/*146*/;
|
|
Object.defineProperties(FSNode.prototype, {
|
|
read: {
|
|
get: /** @this{FSNode} */function() {
|
|
return (this.mode & readMode) === readMode;
|
|
},
|
|
set: /** @this{FSNode} */function(val) {
|
|
val ? this.mode |= readMode : this.mode &= ~readMode;
|
|
}
|
|
},
|
|
write: {
|
|
get: /** @this{FSNode} */function() {
|
|
return (this.mode & writeMode) === writeMode;
|
|
},
|
|
set: /** @this{FSNode} */function(val) {
|
|
val ? this.mode |= writeMode : this.mode &= ~writeMode;
|
|
}
|
|
},
|
|
isFolder: {
|
|
get: /** @this{FSNode} */function() {
|
|
return FS.isDir(this.mode);
|
|
}
|
|
},
|
|
isDevice: {
|
|
get: /** @this{FSNode} */function() {
|
|
return FS.isChrdev(this.mode);
|
|
}
|
|
}
|
|
});
|
|
FS.FSNode = FSNode;
|
|
FS.staticInit();;
|
|
ERRNO_CODES = {
|
|
'EPERM': 63,
|
|
'ENOENT': 44,
|
|
'ESRCH': 71,
|
|
'EINTR': 27,
|
|
'EIO': 29,
|
|
'ENXIO': 60,
|
|
'E2BIG': 1,
|
|
'ENOEXEC': 45,
|
|
'EBADF': 8,
|
|
'ECHILD': 12,
|
|
'EAGAIN': 6,
|
|
'EWOULDBLOCK': 6,
|
|
'ENOMEM': 48,
|
|
'EACCES': 2,
|
|
'EFAULT': 21,
|
|
'ENOTBLK': 105,
|
|
'EBUSY': 10,
|
|
'EEXIST': 20,
|
|
'EXDEV': 75,
|
|
'ENODEV': 43,
|
|
'ENOTDIR': 54,
|
|
'EISDIR': 31,
|
|
'EINVAL': 28,
|
|
'ENFILE': 41,
|
|
'EMFILE': 33,
|
|
'ENOTTY': 59,
|
|
'ETXTBSY': 74,
|
|
'EFBIG': 22,
|
|
'ENOSPC': 51,
|
|
'ESPIPE': 70,
|
|
'EROFS': 69,
|
|
'EMLINK': 34,
|
|
'EPIPE': 64,
|
|
'EDOM': 18,
|
|
'ERANGE': 68,
|
|
'ENOMSG': 49,
|
|
'EIDRM': 24,
|
|
'ECHRNG': 106,
|
|
'EL2NSYNC': 156,
|
|
'EL3HLT': 107,
|
|
'EL3RST': 108,
|
|
'ELNRNG': 109,
|
|
'EUNATCH': 110,
|
|
'ENOCSI': 111,
|
|
'EL2HLT': 112,
|
|
'EDEADLK': 16,
|
|
'ENOLCK': 46,
|
|
'EBADE': 113,
|
|
'EBADR': 114,
|
|
'EXFULL': 115,
|
|
'ENOANO': 104,
|
|
'EBADRQC': 103,
|
|
'EBADSLT': 102,
|
|
'EDEADLOCK': 16,
|
|
'EBFONT': 101,
|
|
'ENOSTR': 100,
|
|
'ENODATA': 116,
|
|
'ETIME': 117,
|
|
'ENOSR': 118,
|
|
'ENONET': 119,
|
|
'ENOPKG': 120,
|
|
'EREMOTE': 121,
|
|
'ENOLINK': 47,
|
|
'EADV': 122,
|
|
'ESRMNT': 123,
|
|
'ECOMM': 124,
|
|
'EPROTO': 65,
|
|
'EMULTIHOP': 36,
|
|
'EDOTDOT': 125,
|
|
'EBADMSG': 9,
|
|
'ENOTUNIQ': 126,
|
|
'EBADFD': 127,
|
|
'EREMCHG': 128,
|
|
'ELIBACC': 129,
|
|
'ELIBBAD': 130,
|
|
'ELIBSCN': 131,
|
|
'ELIBMAX': 132,
|
|
'ELIBEXEC': 133,
|
|
'ENOSYS': 52,
|
|
'ENOTEMPTY': 55,
|
|
'ENAMETOOLONG': 37,
|
|
'ELOOP': 32,
|
|
'EOPNOTSUPP': 138,
|
|
'EPFNOSUPPORT': 139,
|
|
'ECONNRESET': 15,
|
|
'ENOBUFS': 42,
|
|
'EAFNOSUPPORT': 5,
|
|
'EPROTOTYPE': 67,
|
|
'ENOTSOCK': 57,
|
|
'ENOPROTOOPT': 50,
|
|
'ESHUTDOWN': 140,
|
|
'ECONNREFUSED': 14,
|
|
'EADDRINUSE': 3,
|
|
'ECONNABORTED': 13,
|
|
'ENETUNREACH': 40,
|
|
'ENETDOWN': 38,
|
|
'ETIMEDOUT': 73,
|
|
'EHOSTDOWN': 142,
|
|
'EHOSTUNREACH': 23,
|
|
'EINPROGRESS': 26,
|
|
'EALREADY': 7,
|
|
'EDESTADDRREQ': 17,
|
|
'EMSGSIZE': 35,
|
|
'EPROTONOSUPPORT': 66,
|
|
'ESOCKTNOSUPPORT': 137,
|
|
'EADDRNOTAVAIL': 4,
|
|
'ENETRESET': 39,
|
|
'EISCONN': 30,
|
|
'ENOTCONN': 53,
|
|
'ETOOMANYREFS': 141,
|
|
'EUSERS': 136,
|
|
'EDQUOT': 19,
|
|
'ESTALE': 72,
|
|
'ENOTSUP': 138,
|
|
'ENOMEDIUM': 148,
|
|
'EILSEQ': 25,
|
|
'EOVERFLOW': 61,
|
|
'ECANCELED': 11,
|
|
'ENOTRECOVERABLE': 56,
|
|
'EOWNERDEAD': 62,
|
|
'ESTRPIPE': 135,
|
|
};;
|
|
var ASSERTIONS = true;
|
|
|
|
|
|
|
|
/** @type {function(string, boolean=, number=)} */
|
|
function intArrayFromString(stringy, dontAddNull, length) {
|
|
var len = length > 0 ? length : lengthBytesUTF8(stringy)+1;
|
|
var u8array = new Array(len);
|
|
var numBytesWritten = stringToUTF8Array(stringy, u8array, 0, u8array.length);
|
|
if (dontAddNull) u8array.length = numBytesWritten;
|
|
return u8array;
|
|
}
|
|
|
|
function intArrayToString(array) {
|
|
var ret = [];
|
|
for (var i = 0; i < array.length; i++) {
|
|
var chr = array[i];
|
|
if (chr > 0xFF) {
|
|
if (ASSERTIONS) {
|
|
assert(false, 'Character code ' + chr + ' (' + String.fromCharCode(chr) + ') at offset ' + i + ' not in 0x00-0xFF.');
|
|
}
|
|
chr &= 0xFF;
|
|
}
|
|
ret.push(String.fromCharCode(chr));
|
|
}
|
|
return ret.join('');
|
|
}
|
|
|
|
|
|
function checkIncomingModuleAPI() {
|
|
ignoredModuleProp('fetchSettings');
|
|
}
|
|
var asmLibraryArg = {
|
|
"__assert_fail": ___assert_fail,
|
|
"__cxa_allocate_exception": ___cxa_allocate_exception,
|
|
"__cxa_throw": ___cxa_throw,
|
|
"abort": _abort,
|
|
"emscripten_memcpy_big": _emscripten_memcpy_big,
|
|
"emscripten_resize_heap": _emscripten_resize_heap,
|
|
"environ_get": _environ_get,
|
|
"environ_sizes_get": _environ_sizes_get,
|
|
"fd_close": _fd_close,
|
|
"fd_read": _fd_read,
|
|
"fd_seek": _fd_seek,
|
|
"fd_write": _fd_write,
|
|
"setTempRet0": _setTempRet0,
|
|
"strftime_l": _strftime_l
|
|
};
|
|
var asm = createWasm();
|
|
/** @type {function(...*):?} */
|
|
var ___wasm_call_ctors = Module["___wasm_call_ctors"] = createExportWrapper("__wasm_call_ctors");
|
|
|
|
/** @type {function(...*):?} */
|
|
var _main = Module["_main"] = createExportWrapper("main");
|
|
|
|
/** @type {function(...*):?} */
|
|
var ___errno_location = Module["___errno_location"] = createExportWrapper("__errno_location");
|
|
|
|
/** @type {function(...*):?} */
|
|
var ___stdio_exit = Module["___stdio_exit"] = createExportWrapper("__stdio_exit");
|
|
|
|
/** @type {function(...*):?} */
|
|
var _malloc = Module["_malloc"] = createExportWrapper("malloc");
|
|
|
|
/** @type {function(...*):?} */
|
|
var _emscripten_stack_init = Module["_emscripten_stack_init"] = function() {
|
|
return (_emscripten_stack_init = Module["_emscripten_stack_init"] = Module["asm"]["emscripten_stack_init"]).apply(null, arguments);
|
|
};
|
|
|
|
/** @type {function(...*):?} */
|
|
var _emscripten_stack_get_free = Module["_emscripten_stack_get_free"] = function() {
|
|
return (_emscripten_stack_get_free = Module["_emscripten_stack_get_free"] = Module["asm"]["emscripten_stack_get_free"]).apply(null, arguments);
|
|
};
|
|
|
|
/** @type {function(...*):?} */
|
|
var _emscripten_stack_get_base = Module["_emscripten_stack_get_base"] = function() {
|
|
return (_emscripten_stack_get_base = Module["_emscripten_stack_get_base"] = Module["asm"]["emscripten_stack_get_base"]).apply(null, arguments);
|
|
};
|
|
|
|
/** @type {function(...*):?} */
|
|
var _emscripten_stack_get_end = Module["_emscripten_stack_get_end"] = function() {
|
|
return (_emscripten_stack_get_end = Module["_emscripten_stack_get_end"] = Module["asm"]["emscripten_stack_get_end"]).apply(null, arguments);
|
|
};
|
|
|
|
/** @type {function(...*):?} */
|
|
var stackSave = Module["stackSave"] = createExportWrapper("stackSave");
|
|
|
|
/** @type {function(...*):?} */
|
|
var stackRestore = Module["stackRestore"] = createExportWrapper("stackRestore");
|
|
|
|
/** @type {function(...*):?} */
|
|
var stackAlloc = Module["stackAlloc"] = createExportWrapper("stackAlloc");
|
|
|
|
/** @type {function(...*):?} */
|
|
var dynCall_viijii = Module["dynCall_viijii"] = createExportWrapper("dynCall_viijii");
|
|
|
|
/** @type {function(...*):?} */
|
|
var dynCall_jiji = Module["dynCall_jiji"] = createExportWrapper("dynCall_jiji");
|
|
|
|
/** @type {function(...*):?} */
|
|
var dynCall_iiiiij = Module["dynCall_iiiiij"] = createExportWrapper("dynCall_iiiiij");
|
|
|
|
/** @type {function(...*):?} */
|
|
var dynCall_iiiiijj = Module["dynCall_iiiiijj"] = createExportWrapper("dynCall_iiiiijj");
|
|
|
|
/** @type {function(...*):?} */
|
|
var dynCall_iiiiiijj = Module["dynCall_iiiiiijj"] = createExportWrapper("dynCall_iiiiiijj");
|
|
|
|
|
|
|
|
|
|
|
|
// === Auto-generated postamble setup entry stuff ===
|
|
|
|
unexportedRuntimeFunction('intArrayFromString', false);
|
|
unexportedRuntimeFunction('intArrayToString', false);
|
|
unexportedRuntimeFunction('ccall', false);
|
|
unexportedRuntimeFunction('cwrap', false);
|
|
unexportedRuntimeFunction('setValue', false);
|
|
unexportedRuntimeFunction('getValue', false);
|
|
unexportedRuntimeFunction('allocate', false);
|
|
unexportedRuntimeFunction('UTF8ArrayToString', false);
|
|
unexportedRuntimeFunction('UTF8ToString', false);
|
|
unexportedRuntimeFunction('stringToUTF8Array', false);
|
|
unexportedRuntimeFunction('stringToUTF8', false);
|
|
unexportedRuntimeFunction('lengthBytesUTF8', false);
|
|
unexportedRuntimeFunction('stackTrace', false);
|
|
unexportedRuntimeFunction('addOnPreRun', false);
|
|
unexportedRuntimeFunction('addOnInit', false);
|
|
unexportedRuntimeFunction('addOnPreMain', false);
|
|
unexportedRuntimeFunction('addOnExit', false);
|
|
unexportedRuntimeFunction('addOnPostRun', false);
|
|
unexportedRuntimeFunction('writeStringToMemory', false);
|
|
unexportedRuntimeFunction('writeArrayToMemory', false);
|
|
unexportedRuntimeFunction('writeAsciiToMemory', false);
|
|
unexportedRuntimeFunction('addRunDependency', true);
|
|
unexportedRuntimeFunction('removeRunDependency', true);
|
|
unexportedRuntimeFunction('FS_createFolder', false);
|
|
unexportedRuntimeFunction('FS_createPath', true);
|
|
unexportedRuntimeFunction('FS_createDataFile', true);
|
|
unexportedRuntimeFunction('FS_createPreloadedFile', true);
|
|
unexportedRuntimeFunction('FS_createLazyFile', true);
|
|
unexportedRuntimeFunction('FS_createLink', false);
|
|
unexportedRuntimeFunction('FS_createDevice', true);
|
|
unexportedRuntimeFunction('FS_unlink', true);
|
|
unexportedRuntimeFunction('getLEB', false);
|
|
unexportedRuntimeFunction('getFunctionTables', false);
|
|
unexportedRuntimeFunction('alignFunctionTables', false);
|
|
unexportedRuntimeFunction('registerFunctions', false);
|
|
unexportedRuntimeFunction('addFunction', false);
|
|
unexportedRuntimeFunction('removeFunction', false);
|
|
unexportedRuntimeFunction('getFuncWrapper', false);
|
|
unexportedRuntimeFunction('prettyPrint', false);
|
|
unexportedRuntimeFunction('dynCall', false);
|
|
unexportedRuntimeFunction('getCompilerSetting', false);
|
|
unexportedRuntimeFunction('print', false);
|
|
unexportedRuntimeFunction('printErr', false);
|
|
unexportedRuntimeFunction('getTempRet0', false);
|
|
unexportedRuntimeFunction('setTempRet0', false);
|
|
unexportedRuntimeFunction('callMain', false);
|
|
unexportedRuntimeFunction('abort', false);
|
|
unexportedRuntimeFunction('keepRuntimeAlive', false);
|
|
unexportedRuntimeFunction('zeroMemory', false);
|
|
unexportedRuntimeFunction('stringToNewUTF8', false);
|
|
unexportedRuntimeFunction('abortOnCannotGrowMemory', false);
|
|
unexportedRuntimeFunction('emscripten_realloc_buffer', false);
|
|
unexportedRuntimeFunction('ENV', false);
|
|
unexportedRuntimeFunction('withStackSave', false);
|
|
unexportedRuntimeFunction('ERRNO_CODES', false);
|
|
unexportedRuntimeFunction('ERRNO_MESSAGES', false);
|
|
unexportedRuntimeFunction('setErrNo', false);
|
|
unexportedRuntimeFunction('inetPton4', false);
|
|
unexportedRuntimeFunction('inetNtop4', false);
|
|
unexportedRuntimeFunction('inetPton6', false);
|
|
unexportedRuntimeFunction('inetNtop6', false);
|
|
unexportedRuntimeFunction('readSockaddr', false);
|
|
unexportedRuntimeFunction('writeSockaddr', false);
|
|
unexportedRuntimeFunction('DNS', false);
|
|
unexportedRuntimeFunction('getHostByName', false);
|
|
unexportedRuntimeFunction('Protocols', false);
|
|
unexportedRuntimeFunction('Sockets', false);
|
|
unexportedRuntimeFunction('getRandomDevice', false);
|
|
unexportedRuntimeFunction('traverseStack', false);
|
|
unexportedRuntimeFunction('convertFrameToPC', false);
|
|
unexportedRuntimeFunction('UNWIND_CACHE', false);
|
|
unexportedRuntimeFunction('saveInUnwindCache', false);
|
|
unexportedRuntimeFunction('convertPCtoSourceLocation', false);
|
|
unexportedRuntimeFunction('readAsmConstArgsArray', false);
|
|
unexportedRuntimeFunction('readAsmConstArgs', false);
|
|
unexportedRuntimeFunction('mainThreadEM_ASM', false);
|
|
unexportedRuntimeFunction('jstoi_q', false);
|
|
unexportedRuntimeFunction('jstoi_s', false);
|
|
unexportedRuntimeFunction('getExecutableName', false);
|
|
unexportedRuntimeFunction('listenOnce', false);
|
|
unexportedRuntimeFunction('autoResumeAudioContext', false);
|
|
unexportedRuntimeFunction('dynCallLegacy', false);
|
|
unexportedRuntimeFunction('getDynCaller', false);
|
|
unexportedRuntimeFunction('dynCall', false);
|
|
unexportedRuntimeFunction('callRuntimeCallbacks', false);
|
|
unexportedRuntimeFunction('wasmTableMirror', false);
|
|
unexportedRuntimeFunction('setWasmTableEntry', false);
|
|
unexportedRuntimeFunction('getWasmTableEntry', false);
|
|
unexportedRuntimeFunction('handleException', false);
|
|
unexportedRuntimeFunction('runtimeKeepalivePush', false);
|
|
unexportedRuntimeFunction('runtimeKeepalivePop', false);
|
|
unexportedRuntimeFunction('callUserCallback', false);
|
|
unexportedRuntimeFunction('maybeExit', false);
|
|
unexportedRuntimeFunction('safeSetTimeout', false);
|
|
unexportedRuntimeFunction('asmjsMangle', false);
|
|
unexportedRuntimeFunction('asyncLoad', false);
|
|
unexportedRuntimeFunction('alignMemory', false);
|
|
unexportedRuntimeFunction('mmapAlloc', false);
|
|
unexportedRuntimeFunction('reallyNegative', false);
|
|
unexportedRuntimeFunction('unSign', false);
|
|
unexportedRuntimeFunction('reSign', false);
|
|
unexportedRuntimeFunction('formatString', false);
|
|
unexportedRuntimeFunction('PATH', false);
|
|
unexportedRuntimeFunction('PATH_FS', false);
|
|
unexportedRuntimeFunction('SYSCALLS', false);
|
|
unexportedRuntimeFunction('getSocketFromFD', false);
|
|
unexportedRuntimeFunction('getSocketAddress', false);
|
|
unexportedRuntimeFunction('JSEvents', false);
|
|
unexportedRuntimeFunction('registerKeyEventCallback', false);
|
|
unexportedRuntimeFunction('specialHTMLTargets', false);
|
|
unexportedRuntimeFunction('maybeCStringToJsString', false);
|
|
unexportedRuntimeFunction('findEventTarget', false);
|
|
unexportedRuntimeFunction('findCanvasEventTarget', false);
|
|
unexportedRuntimeFunction('getBoundingClientRect', false);
|
|
unexportedRuntimeFunction('fillMouseEventData', false);
|
|
unexportedRuntimeFunction('registerMouseEventCallback', false);
|
|
unexportedRuntimeFunction('registerWheelEventCallback', false);
|
|
unexportedRuntimeFunction('registerUiEventCallback', false);
|
|
unexportedRuntimeFunction('registerFocusEventCallback', false);
|
|
unexportedRuntimeFunction('fillDeviceOrientationEventData', false);
|
|
unexportedRuntimeFunction('registerDeviceOrientationEventCallback', false);
|
|
unexportedRuntimeFunction('fillDeviceMotionEventData', false);
|
|
unexportedRuntimeFunction('registerDeviceMotionEventCallback', false);
|
|
unexportedRuntimeFunction('screenOrientation', false);
|
|
unexportedRuntimeFunction('fillOrientationChangeEventData', false);
|
|
unexportedRuntimeFunction('registerOrientationChangeEventCallback', false);
|
|
unexportedRuntimeFunction('fillFullscreenChangeEventData', false);
|
|
unexportedRuntimeFunction('registerFullscreenChangeEventCallback', false);
|
|
unexportedRuntimeFunction('registerRestoreOldStyle', false);
|
|
unexportedRuntimeFunction('hideEverythingExceptGivenElement', false);
|
|
unexportedRuntimeFunction('restoreHiddenElements', false);
|
|
unexportedRuntimeFunction('setLetterbox', false);
|
|
unexportedRuntimeFunction('currentFullscreenStrategy', false);
|
|
unexportedRuntimeFunction('restoreOldWindowedStyle', false);
|
|
unexportedRuntimeFunction('softFullscreenResizeWebGLRenderTarget', false);
|
|
unexportedRuntimeFunction('doRequestFullscreen', false);
|
|
unexportedRuntimeFunction('fillPointerlockChangeEventData', false);
|
|
unexportedRuntimeFunction('registerPointerlockChangeEventCallback', false);
|
|
unexportedRuntimeFunction('registerPointerlockErrorEventCallback', false);
|
|
unexportedRuntimeFunction('requestPointerLock', false);
|
|
unexportedRuntimeFunction('fillVisibilityChangeEventData', false);
|
|
unexportedRuntimeFunction('registerVisibilityChangeEventCallback', false);
|
|
unexportedRuntimeFunction('registerTouchEventCallback', false);
|
|
unexportedRuntimeFunction('fillGamepadEventData', false);
|
|
unexportedRuntimeFunction('registerGamepadEventCallback', false);
|
|
unexportedRuntimeFunction('registerBeforeUnloadEventCallback', false);
|
|
unexportedRuntimeFunction('fillBatteryEventData', false);
|
|
unexportedRuntimeFunction('battery', false);
|
|
unexportedRuntimeFunction('registerBatteryEventCallback', false);
|
|
unexportedRuntimeFunction('setCanvasElementSize', false);
|
|
unexportedRuntimeFunction('getCanvasElementSize', false);
|
|
unexportedRuntimeFunction('demangle', false);
|
|
unexportedRuntimeFunction('demangleAll', false);
|
|
unexportedRuntimeFunction('jsStackTrace', false);
|
|
unexportedRuntimeFunction('stackTrace', false);
|
|
unexportedRuntimeFunction('getEnvStrings', false);
|
|
unexportedRuntimeFunction('checkWasiClock', false);
|
|
unexportedRuntimeFunction('writeI53ToI64', false);
|
|
unexportedRuntimeFunction('writeI53ToI64Clamped', false);
|
|
unexportedRuntimeFunction('writeI53ToI64Signaling', false);
|
|
unexportedRuntimeFunction('writeI53ToU64Clamped', false);
|
|
unexportedRuntimeFunction('writeI53ToU64Signaling', false);
|
|
unexportedRuntimeFunction('readI53FromI64', false);
|
|
unexportedRuntimeFunction('readI53FromU64', false);
|
|
unexportedRuntimeFunction('convertI32PairToI53', false);
|
|
unexportedRuntimeFunction('convertU32PairToI53', false);
|
|
unexportedRuntimeFunction('setImmediateWrapped', false);
|
|
unexportedRuntimeFunction('clearImmediateWrapped', false);
|
|
unexportedRuntimeFunction('polyfillSetImmediate', false);
|
|
unexportedRuntimeFunction('uncaughtExceptionCount', false);
|
|
unexportedRuntimeFunction('exceptionLast', false);
|
|
unexportedRuntimeFunction('exceptionCaught', false);
|
|
unexportedRuntimeFunction('ExceptionInfo', false);
|
|
unexportedRuntimeFunction('CatchInfo', false);
|
|
unexportedRuntimeFunction('exception_addRef', false);
|
|
unexportedRuntimeFunction('exception_decRef', false);
|
|
unexportedRuntimeFunction('Browser', false);
|
|
unexportedRuntimeFunction('funcWrappers', false);
|
|
unexportedRuntimeFunction('getFuncWrapper', false);
|
|
unexportedRuntimeFunction('setMainLoop', false);
|
|
unexportedRuntimeFunction('wget', false);
|
|
unexportedRuntimeFunction('FS', false);
|
|
unexportedRuntimeFunction('MEMFS', false);
|
|
unexportedRuntimeFunction('TTY', false);
|
|
unexportedRuntimeFunction('PIPEFS', false);
|
|
unexportedRuntimeFunction('SOCKFS', false);
|
|
unexportedRuntimeFunction('_setNetworkCallback', false);
|
|
unexportedRuntimeFunction('tempFixedLengthArray', false);
|
|
unexportedRuntimeFunction('miniTempWebGLFloatBuffers', false);
|
|
unexportedRuntimeFunction('heapObjectForWebGLType', false);
|
|
unexportedRuntimeFunction('heapAccessShiftForWebGLHeap', false);
|
|
unexportedRuntimeFunction('GL', false);
|
|
unexportedRuntimeFunction('emscriptenWebGLGet', false);
|
|
unexportedRuntimeFunction('computeUnpackAlignedImageSize', false);
|
|
unexportedRuntimeFunction('emscriptenWebGLGetTexPixelData', false);
|
|
unexportedRuntimeFunction('emscriptenWebGLGetUniform', false);
|
|
unexportedRuntimeFunction('webglGetUniformLocation', false);
|
|
unexportedRuntimeFunction('webglPrepareUniformLocationsBeforeFirstUse', false);
|
|
unexportedRuntimeFunction('webglGetLeftBracePos', false);
|
|
unexportedRuntimeFunction('emscriptenWebGLGetVertexAttrib', false);
|
|
unexportedRuntimeFunction('writeGLArray', false);
|
|
unexportedRuntimeFunction('AL', false);
|
|
unexportedRuntimeFunction('SDL_unicode', false);
|
|
unexportedRuntimeFunction('SDL_ttfContext', false);
|
|
unexportedRuntimeFunction('SDL_audio', false);
|
|
unexportedRuntimeFunction('SDL', false);
|
|
unexportedRuntimeFunction('SDL_gfx', false);
|
|
unexportedRuntimeFunction('GLUT', false);
|
|
unexportedRuntimeFunction('EGL', false);
|
|
unexportedRuntimeFunction('GLFW_Window', false);
|
|
unexportedRuntimeFunction('GLFW', false);
|
|
unexportedRuntimeFunction('GLEW', false);
|
|
unexportedRuntimeFunction('IDBStore', false);
|
|
unexportedRuntimeFunction('runAndAbortIfError', false);
|
|
unexportedRuntimeFunction('warnOnce', false);
|
|
unexportedRuntimeFunction('stackSave', false);
|
|
unexportedRuntimeFunction('stackRestore', false);
|
|
unexportedRuntimeFunction('stackAlloc', false);
|
|
unexportedRuntimeFunction('AsciiToString', false);
|
|
unexportedRuntimeFunction('stringToAscii', false);
|
|
unexportedRuntimeFunction('UTF16ToString', false);
|
|
unexportedRuntimeFunction('stringToUTF16', false);
|
|
unexportedRuntimeFunction('lengthBytesUTF16', false);
|
|
unexportedRuntimeFunction('UTF32ToString', false);
|
|
unexportedRuntimeFunction('stringToUTF32', false);
|
|
unexportedRuntimeFunction('lengthBytesUTF32', false);
|
|
unexportedRuntimeFunction('allocateUTF8', false);
|
|
unexportedRuntimeFunction('allocateUTF8OnStack', false);
|
|
Module["writeStackCookie"] = writeStackCookie;
|
|
Module["checkStackCookie"] = checkStackCookie;
|
|
unexportedRuntimeSymbol('ALLOC_NORMAL', false);
|
|
unexportedRuntimeSymbol('ALLOC_STACK', false);
|
|
|
|
var calledRun;
|
|
|
|
/**
|
|
* @constructor
|
|
* @this {ExitStatus}
|
|
*/
|
|
function ExitStatus(status) {
|
|
this.name = "ExitStatus";
|
|
this.message = "Program terminated with exit(" + status + ")";
|
|
this.status = status;
|
|
}
|
|
|
|
var calledMain = false;
|
|
|
|
dependenciesFulfilled = function runCaller() {
|
|
// If run has never been called, and we should call run (INVOKE_RUN is true, and Module.noInitialRun is not false)
|
|
if (!calledRun) run();
|
|
if (!calledRun) dependenciesFulfilled = runCaller; // try this again later, after new deps are fulfilled
|
|
};
|
|
|
|
function callMain(args) {
|
|
assert(runDependencies == 0, 'cannot call main when async dependencies remain! (listen on Module["onRuntimeInitialized"])');
|
|
assert(__ATPRERUN__.length == 0, 'cannot call main when preRun functions remain to be called');
|
|
|
|
var entryFunction = Module['_main'];
|
|
|
|
args = args || [];
|
|
|
|
var argc = args.length+1;
|
|
var argv = stackAlloc((argc + 1) * 4);
|
|
HEAP32[argv >> 2] = allocateUTF8OnStack(thisProgram);
|
|
for (var i = 1; i < argc; i++) {
|
|
HEAP32[(argv >> 2) + i] = allocateUTF8OnStack(args[i - 1]);
|
|
}
|
|
HEAP32[(argv >> 2) + argc] = 0;
|
|
|
|
try {
|
|
|
|
var ret = entryFunction(argc, argv);
|
|
|
|
// In PROXY_TO_PTHREAD builds, we should never exit the runtime below, as
|
|
// execution is asynchronously handed off to a pthread.
|
|
// if we're not running an evented main loop, it's time to exit
|
|
exit(ret, /* implicit = */ true);
|
|
return ret;
|
|
}
|
|
catch (e) {
|
|
return handleException(e);
|
|
} finally {
|
|
calledMain = true;
|
|
|
|
}
|
|
}
|
|
|
|
function stackCheckInit() {
|
|
// This is normally called automatically during __wasm_call_ctors but need to
|
|
// get these values before even running any of the ctors so we call it redundantly
|
|
// here.
|
|
// TODO(sbc): Move writeStackCookie to native to to avoid this.
|
|
_emscripten_stack_init();
|
|
writeStackCookie();
|
|
}
|
|
|
|
/** @type {function(Array=)} */
|
|
function run(args) {
|
|
args = args || arguments_;
|
|
|
|
if (runDependencies > 0) {
|
|
return;
|
|
}
|
|
|
|
stackCheckInit();
|
|
|
|
preRun();
|
|
|
|
// a preRun added a dependency, run will be called later
|
|
if (runDependencies > 0) {
|
|
return;
|
|
}
|
|
|
|
function doRun() {
|
|
// run may have just been called through dependencies being fulfilled just in this very frame,
|
|
// or while the async setStatus time below was happening
|
|
if (calledRun) return;
|
|
calledRun = true;
|
|
Module['calledRun'] = true;
|
|
|
|
if (ABORT) return;
|
|
|
|
initRuntime();
|
|
|
|
preMain();
|
|
|
|
if (Module['onRuntimeInitialized']) Module['onRuntimeInitialized']();
|
|
|
|
if (shouldRunNow) callMain(args);
|
|
|
|
postRun();
|
|
}
|
|
|
|
if (Module['setStatus']) {
|
|
Module['setStatus']('Running...');
|
|
setTimeout(function() {
|
|
setTimeout(function() {
|
|
Module['setStatus']('');
|
|
}, 1);
|
|
doRun();
|
|
}, 1);
|
|
} else
|
|
{
|
|
doRun();
|
|
}
|
|
checkStackCookie();
|
|
}
|
|
Module['run'] = run;
|
|
|
|
function checkUnflushedContent() {
|
|
// Compiler settings do not allow exiting the runtime, so flushing
|
|
// the streams is not possible. but in ASSERTIONS mode we check
|
|
// if there was something to flush, and if so tell the user they
|
|
// should request that the runtime be exitable.
|
|
// Normally we would not even include flush() at all, but in ASSERTIONS
|
|
// builds we do so just for this check, and here we see if there is any
|
|
// content to flush, that is, we check if there would have been
|
|
// something a non-ASSERTIONS build would have not seen.
|
|
// How we flush the streams depends on whether we are in SYSCALLS_REQUIRE_FILESYSTEM=0
|
|
// mode (which has its own special function for this; otherwise, all
|
|
// the code is inside libc)
|
|
var oldOut = out;
|
|
var oldErr = err;
|
|
var has = false;
|
|
out = err = (x) => {
|
|
has = true;
|
|
}
|
|
try { // it doesn't matter if it fails
|
|
___stdio_exit();
|
|
// also flush in the JS FS layer
|
|
['stdout', 'stderr'].forEach(function(name) {
|
|
var info = FS.analyzePath('/dev/' + name);
|
|
if (!info) return;
|
|
var stream = info.object;
|
|
var rdev = stream.rdev;
|
|
var tty = TTY.ttys[rdev];
|
|
if (tty && tty.output && tty.output.length) {
|
|
has = true;
|
|
}
|
|
});
|
|
} catch(e) {}
|
|
out = oldOut;
|
|
err = oldErr;
|
|
if (has) {
|
|
warnOnce('stdio streams had content in them that was not flushed. you should set EXIT_RUNTIME to 1 (see the FAQ), or make sure to emit a newline when you printf etc.');
|
|
}
|
|
}
|
|
|
|
/** @param {boolean|number=} implicit */
|
|
function exit(status, implicit) {
|
|
EXITSTATUS = status;
|
|
|
|
// Skip this check if the runtime is being kept alive deliberately.
|
|
// For example if `exit_with_live_runtime` is called.
|
|
if (!runtimeKeepaliveCounter) {
|
|
checkUnflushedContent();
|
|
}
|
|
|
|
if (keepRuntimeAlive()) {
|
|
// if exit() was called, we may warn the user if the runtime isn't actually being shut down
|
|
if (!implicit) {
|
|
var msg = 'program exited (with status: ' + status + '), but EXIT_RUNTIME is not set, so halting execution but not exiting the runtime or preventing further async execution (build with EXIT_RUNTIME=1, if you want a true shutdown)';
|
|
err(msg);
|
|
}
|
|
} else {
|
|
exitRuntime();
|
|
}
|
|
|
|
procExit(status);
|
|
}
|
|
|
|
function procExit(code) {
|
|
EXITSTATUS = code;
|
|
if (!keepRuntimeAlive()) {
|
|
if (Module['onExit']) Module['onExit'](code);
|
|
ABORT = true;
|
|
}
|
|
quit_(code, new ExitStatus(code));
|
|
}
|
|
|
|
if (Module['preInit']) {
|
|
if (typeof Module['preInit'] == 'function') Module['preInit'] = [Module['preInit']];
|
|
while (Module['preInit'].length > 0) {
|
|
Module['preInit'].pop()();
|
|
}
|
|
}
|
|
|
|
// shouldRunNow refers to calling main(), not run().
|
|
var shouldRunNow = true;
|
|
|
|
if (Module['noInitialRun']) shouldRunNow = false;
|
|
|
|
run();
|
|
|
|
|
|
|
|
|
|
|