XOY-Leveldb

小组成员：谢瑞阳、徐翔宇

Histórico

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.)		há 13 anos
..
c.h	C binding for leveldb, better readseq benchmark for SQLite.	há 13 anos
cache.h	reverting disastrous MOE commit, returning to r21	há 13 anos
comparator.h	sync with upstream @ 21409451	há 13 anos
db.h	C binding for leveldb, better readseq benchmark for SQLite.	há 13 anos
env.h	Sync with upstream @23860137.	há 13 anos
iterator.h	sync with upstream @ 21409451	há 13 anos
options.h	Speed up Snappy uncompression, new Logger interface.	há 13 anos
slice.h	Sync with upstream @23860137.	há 13 anos
status.h	Sun Studio support, and fix for test related memory fixes.	há 13 anos
table.h	sync with upstream @ 21409451	há 13 anos
table_builder.h	sync with upstream @ 21409451	há 13 anos
write_batch.h	sync with upstream @ 21409451	há 13 anos