XOY-Leveldb

小组成员：谢瑞阳、徐翔宇

ssid 706b7f8d43 Resolve race when getting approximate-memory-usage property The write operations in the table happens without holding the mutex lock, but concurrent writes are avoided using "writers_" queue. The Arena::MemoryUsage could access the blocks when write happens. So, the memory usage is cached in atomic word and can be loaded from any thread safely. ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=107573379		пре 9 година
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arena.cc	Resolve race when getting approximate-memory-usage property	пре 9 година
arena.h	Resolve race when getting approximate-memory-usage property	пре 9 година
arena_test.cc	Release LevelDB 1.15	пре 11 година
bloom.cc	Fix size_t/int comparison/conversion issues in leveldb.	пре 9 година
bloom_test.cc	Fix size_t/int comparison/conversion issues in leveldb.	пре 9 година
cache.cc	Add "approximate-memory-usage" property to leveldb::DB::GetProperty	пре 9 година
cache_test.cc	Add leveldb::Cache::Prune	пре 9 година
coding.cc	Update to leveldb 1.6	пре 12 година
coding.h	A number of fixes:	пре 13 година
coding_test.cc	Release LevelDB 1.15	пре 11 година
comparator.cc	Remove static initializer; fix endian-ness detection; fix build on	пре 12 година
crc32c.cc	A number of fixes:	пре 13 година
crc32c.h	A number of fixes:	пре 13 година
crc32c_test.cc	A number of fixes:	пре 13 година
env.cc	LevelDB now attempts to reuse the preceding MANIFEST and log file when re-opened.	пре 9 година
env_posix.cc	LevelDB now attempts to reuse the preceding MANIFEST and log file when re-opened.	пре 9 година
env_test.cc	fixed issues 66 (leaking files on disk error) and 68 (no sync of CURRENT file)	пре 13 година
filter_policy.cc	Added bloom filter support.	пре 12 година
hash.cc	Release 1.18	пре 10 година
hash.h	reverting disastrous MOE commit, returning to r21	пре 13 година
hash_test.cc	Release 1.18	пре 10 година
histogram.cc	A number of fixes:	пре 13 година
histogram.h	A number of fixes:	пре 13 година
logging.cc	Release 1.18	пре 10 година
logging.h	Release 1.18	пре 10 година
mutexlock.h	Update to leveldb 1.6	пре 12 година
options.cc	LevelDB now attempts to reuse the preceding MANIFEST and log file when re-opened.	пре 9 година
posix_logger.h	A number of fixes:	пре 13 година
random.h	LevelDB 1.13	пре 11 година
status.cc	A number of fixes:	пре 13 година
testharness.cc	Release LevelDB 1.15	пре 11 година
testharness.h	A number of fixes:	пре 13 година
testutil.cc	Release LevelDB 1.15	пре 11 година
testutil.h	LevelDB now attempts to reuse the preceding MANIFEST and log file when re-opened.	пре 9 година