ce332f8c5e
Summary: Per https://www.unix.com/man-page/freebsd/3/malloc_usable_size/ malloc_usable_size is in malloc_np.h as its a non-standard API. Without patch it just fails to detect from ./CMakeFiles/CMakeError.log In file included from /home/dan/build-rocksdb/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx:2: /usr/include/malloc.h:3:2: error: "<malloc.h> has been replaced by <stdlib.h>" ^ /home/dan/build-rocksdb/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx:8:19: error: use of undeclared identifier 'malloc_usable_size' return ((int*)(&malloc_usable_size))[argc]; ^ 2 errors generated. Pull Request resolved: https://github.com/facebook/rocksdb/pull/7009 Reviewed By: riversand963 Differential Revision: D22176093 Pulled By: ajkr fbshipit-source-id: da980f3d343b6d9b0c70d7827c6df495f3fb1ade
RocksDB: A Persistent Key-Value Store for Flash and RAM Storage
RocksDB is developed and maintained by Facebook Database Engineering Team. It is built on earlier work on LevelDB by Sanjay Ghemawat (sanjay@google.com) and Jeff Dean (jeff@google.com)
This code is a library that forms the core building block for a fast key-value server, especially suited for storing data on flash drives. It has a Log-Structured-Merge-Database (LSM) design with flexible tradeoffs between Write-Amplification-Factor (WAF), Read-Amplification-Factor (RAF) and Space-Amplification-Factor (SAF). It has multi-threaded compactions, making it especially suitable for storing multiple terabytes of data in a single database.
Start with example usage here: https://github.com/facebook/rocksdb/tree/master/examples
See the github wiki for more explanation.
The public interface is in include/. Callers should not include or
rely on the details of any other header files in this package. Those
internal APIs may be changed without warning.
Design discussions are conducted in https://www.facebook.com/groups/rocksdb.dev/ and https://rocksdb.slack.com/
License
RocksDB is dual-licensed under both the GPLv2 (found in the COPYING file in the root directory) and Apache 2.0 License (found in the LICENSE.Apache file in the root directory). You may select, at your option, one of the above-listed licenses.