fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
30 lines
1.1 KiB
30 lines
1.1 KiB
// 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.
|
|
virtual Status Callback(SequenceNumber seq) = 0;
|
|
};
|
|
|
|
} // namespace rocksdb
|
|
|