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rocksdb/utilities
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agiardullo fe93bf9b5d Transaction::UndoGetForUpdate 
Summary: MyRocks wants to be able to un-lock a key that was just locked by GetForUpdate().  To do this safely, I am now keeping track of the number of reads(for update) and writes for each key in a transaction.  UndoGetForUpdate() will only unlock a key if it hasn't been written and the read count reaches 0.

Test Plan: more unit tests

Reviewers: igor, rven, yhchiang, spetrunia, sdong

Reviewed By: spetrunia, sdong

Subscribers: spetrunia, dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D47043
2016-02-09 10:46:11 -08:00
..
backupable [directory includes cleanup] Finish removing util->db dependencies 2016-01-26 10:49:24 -08:00
checkpoint No need to #ifdef test only code on windows 2015-10-22 15:15:37 -07:00
compaction_filters RemoveEmptyValueCompactionFilter - A compaction filter which removes entries which have an empty value 2015-07-16 11:50:10 +01:00
convenience Add function 'GetInfoLogList()' 2015-08-05 16:16:46 -07:00
document Fix clang warnings regarding unnecessary std::move 2015-12-24 04:10:00 +08:00
flashcache Fix clang warnings regarding unnecessary std::move 2015-12-24 04:10:00 +08:00
geodb As per google coding standard replace "using" in option_builder.cc and 2016-01-20 00:27:29 +00:00
leveldb_options Added CompatibleOptions for compatibility with LevelDB Options 2014-11-20 19:24:39 -08:00
memory Fix build broken by previous commit of "option helper refactor" 2015-11-17 16:52:54 -08:00
merge_operators Lint everything 2015-11-16 12:56:21 -08:00
options Add CheckOptionsCompatibility() API to options_util 2015-11-12 16:52:51 -08:00
redis Lint everything 2015-11-16 12:56:21 -08:00
spatialdb Enable MS compiler warning c4244. 2015-12-11 16:47:34 -08:00
table_properties_collectors Pass column family ID to table property collector 2015-10-09 14:36:51 -07:00
transactions Transaction::UndoGetForUpdate 2016-02-09 10:46:11 -08:00
ttl Skip unsupported tests in ROCKSDB_LITE 2015-07-20 11:24:54 -07:00
write_batch_with_index fix typos in comments 2015-12-11 01:54:48 +09:00
env_mirror_test.cc env: add EnvMirror 2015-12-10 21:32:45 -05:00
env_mirror.cc Fix warning in release 2015-12-23 22:38:12 -08:00
merge_operators.h Add appropriate LICENSE and Copyright message. 2013-10-16 17:48:41 -07:00