XOY-Leveldb

小组成员：谢瑞阳、徐翔宇

Historia

costan 73d5834ece Rework threading in env_posix.cc. This commit replaces the use of pthreads in the POSIX port with std::thread and port::Mutex + port::CondVar. This is intended to simplify porting the env to a different platform. The indirect use of pthreads in PosixLogger is replaced with std:🧵:id(), based on an approach prototyped by @cmumfordx@. The pthreads dependency in CMakeFiles is not removed, because some C++ standard library implementations must be linked against pthreads for std::thread use. Figuring out this dependency is left for future work. Switching away from pthreads also fixes https://github.com/google/leveldb/issues/381 ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=212478311		6 vuotta sitten
..
arena.cc	Replace NULL with nullptr in C++ files.	6 vuotta sitten
arena.h	Resolve race when getting approximate-memory-usage property	9 vuotta sitten
arena_test.cc	Release LevelDB 1.15	11 vuotta sitten
bloom.cc	Fix size_t/int comparison/conversion issues in leveldb.	9 vuotta sitten
bloom_test.cc	Fix size_t/int comparison/conversion issues in leveldb.	9 vuotta sitten
cache.cc	Replace NULL with nullptr in C++ files.	6 vuotta sitten
cache_test.cc	Replace NULL with nullptr in C++ files.	6 vuotta sitten
coding.cc	Replace NULL with nullptr in C++ files.	6 vuotta sitten
coding.h	Replace NULL with nullptr in C++ files.	6 vuotta sitten
coding_test.cc	Replace NULL with nullptr in C++ files.	6 vuotta sitten
comparator.cc	Remove InitOnce from the port API.	6 vuotta sitten
crc32c.cc	Use portable CRC32C from google/crc32c.	7 vuotta sitten
crc32c.h	Remove extern from function declarations.	6 vuotta sitten
crc32c_test.cc	A number of fixes:	13 vuotta sitten
env.cc	Replace NULL with nullptr in C++ files.	6 vuotta sitten
env_posix.cc	Rework threading in env_posix.cc.	6 vuotta sitten
env_posix_test.cc	Replace NULL with nullptr in C++ files.	6 vuotta sitten
env_posix_test_helper.h	Limit the number of read-only files the POSIX Env will have open.	8 vuotta sitten
env_test.cc	Replace NULL with nullptr in C++ files.	6 vuotta sitten
filter_policy.cc	Added bloom filter support.	12 vuotta sitten
hash.cc	Release 1.18	10 vuotta sitten
hash.h	Remove extern from function declarations.	6 vuotta sitten
hash_test.cc	Release 1.18	10 vuotta sitten
histogram.cc	A number of fixes:	13 vuotta sitten
histogram.h	A number of fixes:	13 vuotta sitten
logging.cc	Add forgotten <limits> header to util/logging.cc.	6 vuotta sitten
logging.h	Remove extern from function declarations.	6 vuotta sitten
logging_test.cc	Add tests for ConsumeDecimalNumber.	6 vuotta sitten
mutexlock.h	Update to leveldb 1.6	12 vuotta sitten
no_destructor.h	Remove InitOnce from the port API.	6 vuotta sitten
no_destructor_test.cc	Remove InitOnce from the port API.	6 vuotta sitten
options.cc	Replace NULL with nullptr in C++ files.	6 vuotta sitten
posix_logger.h	Rework threading in env_posix.cc.	6 vuotta sitten
random.h	LevelDB 1.13	11 vuotta sitten
status.cc	Replace NULL with nullptr in C++ files.	6 vuotta sitten
status_test.cc	Add move constructor to Status.	6 vuotta sitten
testharness.cc	Replace NULL with nullptr in C++ files.	6 vuotta sitten
testharness.h	Fix includes in util/testharness.h.	6 vuotta sitten
testutil.cc	Remove extern from function declarations.	6 vuotta sitten
testutil.h	Replace NULL with nullptr in C++ files.	6 vuotta sitten