XOY-Leveldb

小组成员：谢瑞阳、徐翔宇

Hans Wennborg 213a68eb68 Sync with upstream @23860137 . Fix GCC -Wshadow warnings in LevelDB's public header files, reported by Dustin. Add in-memory Env implementation (helpers/memenv/). This enables users to create LevelDB databases in-memory. Initialize ShardedLRUCache::last_id_ to zero. This fixes a Valgrind warning. (Also delete port/sha1_ which were removed upstream some time ago.)			13年前
..
win	reverting disastrous MOE commit, returning to r21	删除	13年前
README	reverting disastrous MOE commit, returning to r21		13年前
atomic_pointer.h	Speed up Snappy uncompression, new Logger interface.		13年前
port.h	Platform detection during build, plus compatibility patches for machines without <cstdatomic>.		13年前
port_android.cc	reverting disastrous MOE commit, returning to r21		13年前
port_android.h	Speed up Snappy uncompression, new Logger interface.		13年前
port_example.h	Speed up Snappy uncompression, new Logger interface.		13年前
port_posix.cc	reverting disastrous MOE commit, returning to r21		13年前
port_posix.h	Adding FreeBSD support, removing Chromium files, adding benchmark.		13年前

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.