fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph

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Andrew Kryczka 1f32dc7d2b Check with PosixEnv before opening LOCK file (#3993) ... Summary: Rebased and resubmitting #1831 on behalf of stevelittle. The problem is when a single process attempts to open the same DB twice, the second attempt fails due to LOCK file held. If the second attempt had opened the LOCK file, it'll now need to close it, and closing causes the file to be unlocked. Then, any subsequent attempt to open the DB will succeed, which is the wrong behavior. The solution was to track which files a process has locked in PosixEnv, and check those before opening a LOCK file. Fixes #1780. Closes https://github.com/facebook/rocksdb/pull/3993 Differential Revision: D8398984 Pulled By: ajkr fbshipit-source-id: 2755fe66950a0c9de63075f932f9e15768041918		7 years ago
..
env.cc	Apply use_direct_io_for_flush_and_compaction to writes only	7 years ago
env_basic_test.cc	Move some files under util/ to separate dirs	8 years ago
env_chroot.cc	Change RocksDB License	7 years ago
env_chroot.h	Change RocksDB License	7 years ago
env_encryption.cc	Fix some typos in comments and docs.	7 years ago
env_hdfs.cc	Disallow compactions if there isn't enough free space	7 years ago
env_posix.cc	Check with PosixEnv before opening LOCK file (#3993)	7 years ago
env_test.cc	Catchup with posix features	7 years ago
io_posix.cc	Fix Fadvise on closed file when reads use mmap	7 years ago
io_posix.h	Second attempt at db_stress crash-recovery verification	7 years ago
mock_env.cc	Add virtual Truncate method to Env	7 years ago
mock_env.h	Add virtual Truncate method to Env	7 years ago
mock_env_test.cc	Move some files under util/ to separate dirs	8 years ago
posix_logger.h	Disallow compactions if there isn't enough free space	7 years ago