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Vitaly Isaev 0bd2ede10e Memory usage stats in C API (#4340) 
Summary:
Please consider this small PR providing access to the `MemoryUsage::GetApproximateMemoryUsageByType` function in plain C API. Actually I'm working on Go application and now trying to investigate the reasons of high memory consumption (#4313). Go [wrappers](https://github.com/tecbot/gorocksdb) are built on the top of Rocksdb C API. According to the #706, `MemoryUsage::GetApproximateMemoryUsageByType` is considered as the best option to get database internal memory usage stats, but it wasn't supported in C API yet.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/4340

Differential Revision: D9655135

Pulled By: ajkr

fbshipit-source-id: a3d2f3f47c143ae75862fbcca2f571ea1b49e14a
2018-09-13 14:27:31 -07:00
..
utilities Skip concurrency control during recovery of pessimistic txn (#4346) 2018-09-10 16:57:53 -07:00
advanced_options.h Allow ttl to be changed dynamically (#4133) 2018-07-16 14:27:53 -07:00
c.h Memory usage stats in C API (#4340) 2018-09-13 14:27:31 -07:00
cache.h LRUCache midpoint insertion 2018-05-24 15:57:33 -07:00
cleanable.h Support pragma once in all header files and cleanup some warnings (#4339) 2018-09-05 18:13:31 -07:00
compaction_filter.h Support pragma once in all header files and cleanup some warnings (#4339) 2018-09-05 18:13:31 -07:00
compaction_job_stats.h Fix some typos in comments and docs. 2018-03-08 10:27:25 -08:00
comparator.h Support pragma once in all header files and cleanup some warnings (#4339) 2018-09-05 18:13:31 -07:00
convenience.h Delete files in multiple ranges at once 2018-01-30 13:56:39 -08:00
db_bench_tool.h Change RocksDB License 2017-07-15 16:11:23 -07:00
db_dump_tool.h Fix some typos in comments and docs. 2018-03-08 10:27:25 -08:00
db.h Support pragma once in all header files and cleanup some warnings (#4339) 2018-09-05 18:13:31 -07:00
env_encryption.h Fix some typos in comments and docs. 2018-03-08 10:27:25 -08:00
env.h Support pragma once in all header files and cleanup some warnings (#4339) 2018-09-05 18:13:31 -07:00
experimental.h Change RocksDB License 2017-07-15 16:11:23 -07:00
filter_policy.h Support pragma once in all header files and cleanup some warnings (#4339) 2018-09-05 18:13:31 -07:00
flush_block_policy.h Change RocksDB License 2017-07-15 16:11:23 -07:00
iostats_context.h Change RocksDB License 2017-07-15 16:11:23 -07:00
iterator.h Support pragma once in all header files and cleanup some warnings (#4339) 2018-09-05 18:13:31 -07:00
ldb_tool.h Change RocksDB License 2017-07-15 16:11:23 -07:00
listener.h Improve visibility into the reasons for compaction. 2018-04-11 10:58:44 -07:00
memtablerep.h Adding a method for memtable class for memtable getting flushed. (#4304) 2018-08-23 17:14:25 -07:00
merge_operator.h Support pragma once in all header files and cleanup some warnings (#4339) 2018-09-05 18:13:31 -07:00
metadata.h Support pragma once in all header files and cleanup some warnings (#4339) 2018-09-05 18:13:31 -07:00
options.h Support pragma once in all header files and cleanup some warnings (#4339) 2018-09-05 18:13:31 -07:00
perf_context.h Support pragma once in all header files and cleanup some warnings (#4339) 2018-09-05 18:13:31 -07:00
perf_level.h Support pragma once in all header files and cleanup some warnings (#4339) 2018-09-05 18:13:31 -07:00
persistent_cache.h Change RocksDB License 2017-07-15 16:11:23 -07:00
rate_limiter.h Comment out unused variables 2018-03-05 13:13:41 -08:00
slice_transform.h Support pragma once in all header files and cleanup some warnings (#4339) 2018-09-05 18:13:31 -07:00
slice.h Support pragma once in all header files and cleanup some warnings (#4339) 2018-09-05 18:13:31 -07:00
snapshot.h Change RocksDB License 2017-07-15 16:11:23 -07:00
sst_dump_tool.h Change RocksDB License 2017-07-15 16:11:23 -07:00
sst_file_manager.h Expose GetTotalTrashSize in SstFileManager interface (#4206) 2018-08-04 17:57:48 -07:00
sst_file_writer.h Support range deletion tombstones in IngestExternalFile SSTs (#3778) 2018-07-13 22:43:09 -07:00
statistics.h Support pragma once in all header files and cleanup some warnings (#4339) 2018-09-05 18:13:31 -07:00
status.h Support pragma once in all header files and cleanup some warnings (#4339) 2018-09-05 18:13:31 -07:00
table_properties.h Index value delta encoding (#3983) 2018-08-09 16:58:40 -07:00
table.h Inline doc for format_version 4 (#4350) 2018-09-07 07:57:30 -07:00
thread_status.h fix ThreadStatus for bottom-pri compaction threads 2017-12-14 14:57:49 -08:00
threadpool.h Change RocksDB License 2017-07-15 16:11:23 -07:00
trace_reader_writer.h Trace and Replay for RocksDB (#3837) 2018-08-01 00:27:08 -07:00
transaction_log.h Support pragma once in all header files and cleanup some warnings (#4339) 2018-09-05 18:13:31 -07:00
types.h Support pragma once in all header files and cleanup some warnings (#4339) 2018-09-05 18:13:31 -07:00
universal_compaction.h Support pragma once in all header files and cleanup some warnings (#4339) 2018-09-05 18:13:31 -07:00
version.h Increase version number to 5.16 (#4176) 2018-07-24 13:43:33 -07:00
wal_filter.h Support pragma once in all header files and cleanup some warnings (#4339) 2018-09-05 18:13:31 -07:00
write_batch_base.h Fix some typos in comments and docs. 2018-03-08 10:27:25 -08:00
write_batch.h Support pragma once in all header files and cleanup some warnings (#4339) 2018-09-05 18:13:31 -07:00
write_buffer_manager.h Change RocksDB License 2017-07-15 16:11:23 -07:00