LevelDB-course-Lab

Historie

gabor@google.com ed154f6dc4 Fixed a snappy compression wrapper bug (passing wrong variable). Change atomic_pointer.h to prefer a memory barrier based implementation over a <cstdatomic> based implementation for the following reasons: (1) On a x86-32-bit gcc-4.4 build, <ctdatomic> was corrupting the AtomicPointer. (2) On a x86-64-bit gcc build, a <ctstdatomic> based acquire-load takes ~15ns as opposed to the ~1ns for a memory-barrier based implementation. Fixes issue 9 (corruption_test fails) http://code.google.com/p/leveldb/issues/detail?id=9 Fixes issue 16 (CorruptionTest.MissingDescriptor fails) http://code.google.com/p/leveldb/issues/detail?id=16 git-svn-id: https://leveldb.googlecode.com/svn/trunk@36 62dab493-f737-651d-591e-8d6aee1b9529			před 13 roky
..
win	reverting disastrous MOE commit, returning to r21	删除	před 13 roky
README	reverting disastrous MOE commit, returning to r21		před 13 roky
atomic_pointer.h	Fixed a snappy compression wrapper bug (passing wrong variable).		před 13 roky
port.h	Platform detection during build, plus compatibility patches for machines without <cstdatomic>.		před 13 roky
port_android.cc	reverting disastrous MOE commit, returning to r21		před 13 roky
port_android.h	@20776309		před 13 roky
port_chromium.cc	reverting disastrous MOE commit, returning to r21		před 13 roky
port_chromium.h	@20776309		před 13 roky
port_example.h	@20776309		před 13 roky
port_posix.cc	reverting disastrous MOE commit, returning to r21		před 13 roky
port_posix.h	Fixed a snappy compression wrapper bug (passing wrong variable).		před 13 roky
sha1_portable.cc	reverting disastrous MOE commit, returning to r21		před 13 roky
sha1_portable.h	reverting disastrous MOE commit, returning to r21		před 13 roky
sha1_test.cc	reverting disastrous MOE commit, returning to r21		před 13 roky

README

This directory contains interfaces and implementations that isolate the
rest of the package from platform details.

Code in the rest of the package includes "port.h" from this directory.
"port.h" in turn includes a platform specific "port_<platform>.h" file
that provides the platform specific implementation.

See port_posix.h for an example of what must be provided in a platform
specific header file.