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

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DorianZheng 27090ae8f6 Fix DBImpl::GetColumnFamilyHandleUnlocked race condition (#4391) ... Summary: - Fix DBImpl API race condition The timeline of execution flow is as follow: ``` timeline user_thread1 user_thread2 t1 | cfh = GetColumnFamilyHandleUnlocked(0) t2 | id1 = cfh->GetID() t3 | GetColumnFamilyHandleUnlocked(1) t4 | id2 = cfh->GetID() V ``` The original implementation return a pointer to a stateful variable, so that the return `ColumnFamilyHandle` will be changed when another thread calls `GetColumnFamilyHandleUnlocked` with different `column family id` - Expose ColumnFamily ID to compaction event listener - Fix the return status of `DBImpl::GetLatestSequenceForKey` Pull Request resolved: https://github.com/facebook/rocksdb/pull/4391 Differential Revision: D10221243 Pulled By: yiwu-arbug fbshipit-source-id: dec60ee9ff0c8261a2f2413a8506ec1063991993		6 years ago
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blob_compaction_filter.cc	Blob DB: Improve FIFO eviction	7 years ago
blob_compaction_filter.h	Blob DB: Improve FIFO eviction	7 years ago
blob_db.cc	BlobDB: Cleanup TTLExtractor interface (#4229)	6 years ago
blob_db.h	BlobDB: Can return expiration together with Get() (#4227)	6 years ago
blob_db_impl.cc	Fix DBImpl::GetColumnFamilyHandleUnlocked race condition (#4391)	6 years ago
blob_db_impl.h	BlobDB: handle IO error on read (#4410)	6 years ago
blob_db_impl_filesnapshot.cc	Support pragma once in all header files and cleanup some warnings (#4339)	6 years ago
blob_db_iterator.h	Change and clarify the relationship between Valid(), status() and Seek*() for all iterators. Also fix some bugs	7 years ago
blob_db_listener.h	Blob DB: Improve FIFO eviction	7 years ago
blob_db_test.cc	BlobDB: handle IO error on read (#4410)	6 years ago
blob_dump_tool.cc	Revert "Digest ZSTD compression dictionary once per SST file (#4251)" (#4347)	6 years ago
blob_dump_tool.h	Blob DB: blob_dump to show uncompressed values	7 years ago
blob_file.cc	BlobDB: handle IO error on read (#4410)	6 years ago
blob_file.h	BlobDB: handle IO error on read (#4410)	6 years ago
blob_index.h	Blob DB: Inline small values in base DB	7 years ago
blob_log_format.cc	BlobDB: Remove the need to get sequence number per write	7 years ago
blob_log_format.h	BlobDB: Remove the need to get sequence number per write	7 years ago
blob_log_reader.cc	Support pragma once in all header files and cleanup some warnings (#4339)	6 years ago
blob_log_reader.h	Blob DB: enable readahead for garbage collection (#3648)	7 years ago
blob_log_writer.cc	BlobDB: refactor DB open logic	7 years ago
blob_log_writer.h	BlobDB: refactor DB open logic	7 years ago