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

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reid horuff 6f71d3b68b Improve perf of Pessimistic Transaction expirations (and optimistic transactions) ... Summary: copy from task 8196669: 1) Optimistic transactions do not support batching writes from different threads. 2) Pessimistic transactions do not support batching writes if an expiration time is set. In these 2 cases, we currently do not do any write batching in DBImpl::WriteImpl() because there is a WriteCallback that could decide at the last minute to abort the write. But we could support batching write operations with callbacks if we make sure to process the callbacks correctly. To do this, we would first need to modify write_thread.cc to stop preventing writes with callbacks from being batched together. Then we would need to change DBImpl::WriteImpl() to call all WriteCallback's in a batch, only write the batches that succeed, and correctly set the state of each batch's WriteThread::Writer. Test Plan: Added test WriteWithCallbackTest to write_callback_test.cc which creates multiple client threads and verifies that writes are batched and executed properly. Reviewers: hermanlee4, anthony, ngbronson Subscribers: leveldb, dhruba Differential Revision: https://reviews.facebook.net/D52863		10 years ago
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backupable	[directory includes cleanup] Finish removing util->db dependencies	10 years ago
checkpoint	No need to #ifdef test only code on windows	10 years ago
compaction_filters	RemoveEmptyValueCompactionFilter - A compaction filter which removes entries which have an empty value	10 years ago
convenience	Add function 'GetInfoLogList()'	10 years ago
document	Fix clang warnings regarding unnecessary std::move	10 years ago
flashcache	Fix clang warnings regarding unnecessary std::move	10 years ago
geodb	As per google coding standard replace "using" in option_builder.cc and	10 years ago
leveldb_options	Added CompatibleOptions for compatibility with LevelDB Options	11 years ago
memory	Fix build broken by previous commit of "option helper refactor"	10 years ago
merge_operators	Lint everything	10 years ago
options	Add CheckOptionsCompatibility() API to options_util	10 years ago
redis	Lint everything	10 years ago
spatialdb	Enable MS compiler warning c4244.	10 years ago
table_properties_collectors	Pass column family ID to table property collector	10 years ago
transactions	Improve perf of Pessimistic Transaction expirations (and optimistic transactions)	10 years ago
ttl	Skip unsupported tests in ROCKSDB_LITE	10 years ago
write_batch_with_index	fix typos in comments	10 years ago
env_mirror.cc	Fix warning in release	10 years ago
env_mirror_test.cc	env: add EnvMirror	10 years ago
merge_operators.h	Add appropriate LICENSE and Copyright message.	12 years ago