LevelDB-Time-To-Live

作者：韩晨旭 10225101440 李畅 10225102463

Historia

costan ea175e28f8 Implement support for Intel crc32 instruction (SSE 4.2) This change authored by vadimskipin and submitted via: https://github.com/google/leveldb/pull/309 Changes made to support iOS builds and other architectures without support for SSE 4.2. db_bench reports original crc32 speed at: crc32c : 3.610 micros/op; 1082.0 MB/s (4K per op) with this change performance has increased to: crc32c : 0.843 micros/op; 4633.6 MB/s (4K per op) ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=148694935		7 lat temu
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arena.cc	Resolve race when getting approximate-memory-usage property	9 lat temu
arena.h	Resolve race when getting approximate-memory-usage property	9 lat temu
arena_test.cc	Release LevelDB 1.15	11 lat temu
bloom.cc	Fix size_t/int comparison/conversion issues in leveldb.	9 lat temu
bloom_test.cc	Fix size_t/int comparison/conversion issues in leveldb.	9 lat temu
cache.cc	fix problems in LevelDB's caching code	8 lat temu
cache_test.cc	fix problems in LevelDB's caching code	8 lat temu
coding.cc	Update to leveldb 1.6	12 lat temu
coding.h	A number of fixes:	13 lat temu
coding_test.cc	Release LevelDB 1.15	11 lat temu
comparator.cc	Remove static initializer; fix endian-ness detection; fix build on	12 lat temu
crc32c.cc	Implement support for Intel crc32 instruction (SSE 4.2)	7 lat temu
crc32c.h	A number of fixes:	13 lat temu
crc32c_test.cc	A number of fixes:	13 lat temu
env.cc	LevelDB now attempts to reuse the preceding MANIFEST and log file when re-opened.	9 lat temu
env_posix.cc	Including <limits> for std::numeric_limits.	7 lat temu
env_posix_test_helper.h	Limit the number of read-only files the POSIX Env will have open.	8 lat temu
env_test.cc	Limit the number of read-only files the POSIX Env will have open.	8 lat temu
filter_policy.cc	Added bloom filter support.	12 lat temu
hash.cc	Release 1.18	10 lat temu
hash.h	reverting disastrous MOE commit, returning to r21	13 lat temu
hash_test.cc	Release 1.18	10 lat temu
histogram.cc	A number of fixes:	13 lat temu
histogram.h	A number of fixes:	13 lat temu
logging.cc	Release 1.18	10 lat temu
logging.h	Release 1.18	10 lat temu
mutexlock.h	Update to leveldb 1.6	12 lat temu
options.cc	Add option for max file size. The currend hard-coded value of 2M is inefficient in colossus.	8 lat temu
posix_logger.h	A number of fixes:	13 lat temu
random.h	LevelDB 1.13	11 lat temu
status.cc	A number of fixes:	13 lat temu
testharness.cc	Release LevelDB 1.15	11 lat temu
testharness.h	A number of fixes:	13 lat temu
testutil.cc	Release LevelDB 1.15	11 lat temu
testutil.h	LevelDB now attempts to reuse the preceding MANIFEST and log file when re-opened.	9 lat temu