Packages

rocksdb

0.22.0
3.1.1 3.1.0 3.0.0 2.6.2 2.6.1 retired 2.6.0 retired 2.5.0 2.4.1 2.4.0 2.3.0 2.2.0 2.1.0 2.0.0 1.9.0 1.8.0 1.7.0 1.6.0 1.5.1 1.5.0 1.4.0 1.3.2 1.3.1 1.3.0 1.2.0 1.1.1 1.1.0 1.0.0 0.26.2 0.26.1 0.26.0 0.25.0 0.24.0 0.23.3 0.23.2 0.23.1 0.23.0 0.22.0 0.21.0 0.20.1 0.20.0 0.19.0 0.18.0 0.17.0 0.16.0 0.15.0 0.14.0 0.13.1 0.13.0 0.12.0 0.11.0 0.10.0 0.9.1 0.9.0 0.8.2 0.8.1 0.8.0 0.7.1 0.7.0 0.6.4 0.6.3 0.6.2 0.6.1 0.6.0

RocksDB for Erlang

HexDocs

Current section

Files

Jump to
Readme
63 Versions
0 Dependencies
Dependants
Files
Activity
rocksdb deps rocksdb db pre_release_callback.h
Raw

deps/rocksdb/db/pre_release_callback.h 

// Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.

//  This source code is 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).



#pragma once



#include "rocksdb/status.h"



namespace rocksdb {



class DB;



class PreReleaseCallback {

 public:

  virtual ~PreReleaseCallback() {}



  // Will be called while on the write thread after the write and before the

  // release of the sequence number. This is useful if any operation needs to be

  // done before the write gets visible to the readers, or if we want to reduce

  // the overhead of locking by updating something sequentially while we are on

  // the write thread. If the callback fails, this function returns a non-OK

  // status, the sequence number will not be released, and same status will be

  // propagated to all the writers in the write group.

  // seq is the sequence number that is used for this write and will be

  // released.

  // is_mem_disabled is currently used for debugging purposes to assert that

  // the callback is done from the right write queue.

  virtual Status Callback(SequenceNumber seq, bool is_mem_disabled) = 0;

};



}  //  namespace rocksdb