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64 рядки
1.5 KiB
64 рядки
1.5 KiB
// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file. See the AUTHORS file for names of contributors.
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#include "port/port_android.h"
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#include <cstdlib>
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extern "C" {
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size_t fread_unlocked(void *a, size_t b, size_t c, FILE *d) {
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return fread(a, b, c, d);
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}
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size_t fwrite_unlocked(const void *a, size_t b, size_t c, FILE *d) {
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return fwrite(a, b, c, d);
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}
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int fflush_unlocked(FILE *f) {
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return fflush(f);
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}
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int fdatasync(int fd) {
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return fsync(fd);
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}
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}
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namespace leveldb {
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namespace port {
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static void PthreadCall(const char* label, int result) {
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if (result != 0) {
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fprintf(stderr, "pthread %s: %s\n", label, strerror(result));
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abort();
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}
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}
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Mutex::Mutex() { PthreadCall("init mutex", pthread_mutex_init(&mu_, NULL)); }
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Mutex::~Mutex() { PthreadCall("destroy mutex", pthread_mutex_destroy(&mu_)); }
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void Mutex::Lock() { PthreadCall("lock", pthread_mutex_lock(&mu_)); }
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void Mutex::Unlock() { PthreadCall("unlock", pthread_mutex_unlock(&mu_)); }
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CondVar::CondVar(Mutex* mu)
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: mu_(mu) {
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PthreadCall("init cv", pthread_cond_init(&cv_, NULL));
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}
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CondVar::~CondVar() {
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PthreadCall("destroy cv", pthread_cond_destroy(&cv_));
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}
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void CondVar::Wait() {
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PthreadCall("wait", pthread_cond_wait(&cv_, &mu_->mu_));
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}
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void CondVar::Signal(){
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PthreadCall("signal", pthread_cond_signal(&cv_));
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}
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void CondVar::SignalAll() {
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PthreadCall("broadcast", pthread_cond_broadcast(&cv_));
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}
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}
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}
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