mirror of https://gitee.com/bigwinds/arangodb
155 lines
5.9 KiB
C++
155 lines
5.9 KiB
C++
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief replication dump functions
|
|
///
|
|
/// @file
|
|
///
|
|
/// DISCLAIMER
|
|
///
|
|
/// Copyright 2014 ArangoDB GmbH, Cologne, Germany
|
|
/// Copyright 2004-2014 triAGENS GmbH, Cologne, Germany
|
|
///
|
|
/// Licensed under the Apache License, Version 2.0 (the "License");
|
|
/// you may not use this file except in compliance with the License.
|
|
/// You may obtain a copy of the License at
|
|
///
|
|
/// http://www.apache.org/licenses/LICENSE-2.0
|
|
///
|
|
/// Unless required by applicable law or agreed to in writing, software
|
|
/// distributed under the License is distributed on an "AS IS" BASIS,
|
|
/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
/// See the License for the specific language governing permissions and
|
|
/// limitations under the License.
|
|
///
|
|
/// Copyright holder is ArangoDB GmbH, Cologne, Germany
|
|
///
|
|
/// @author Jan Steemann
|
|
/// @author Copyright 2014, ArangoDB GmbH, Cologne, Germany
|
|
/// @author Copyright 2011-2013, triAGENS GmbH, Cologne, Germany
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef ARANGODB_VOC_BASE_REPLICATION__DUMP_H
|
|
#define ARANGODB_VOC_BASE_REPLICATION__DUMP_H 1
|
|
|
|
#include "Basics/Common.h"
|
|
#include "Basics/associative.h"
|
|
#include "Basics/string-buffer.h"
|
|
#include "Basics/Exceptions.h"
|
|
#include "VocBase/replication-common.h"
|
|
#include "VocBase/shaped-json.h"
|
|
#include "VocBase/voc-types.h"
|
|
#include "VocBase/vocbase.h"
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// --SECTION-- forward declarations
|
|
// -----------------------------------------------------------------------------
|
|
|
|
struct TRI_shape_s;
|
|
struct TRI_vocbase_col_s;
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// --SECTION-- REPLICATION LOGGER
|
|
// -----------------------------------------------------------------------------
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// --SECTION-- public types
|
|
// -----------------------------------------------------------------------------
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief replication dump container
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
struct TRI_replication_dump_t {
|
|
TRI_replication_dump_t (TRI_vocbase_t* vocbase,
|
|
size_t chunkSize,
|
|
bool includeSystem)
|
|
: _vocbase(vocbase),
|
|
_buffer(nullptr),
|
|
_chunkSize(chunkSize),
|
|
_lastFoundTick(0),
|
|
_lastSid(0),
|
|
_lastShape(nullptr),
|
|
_collectionNames(),
|
|
_failed(false),
|
|
_bufferFull(false),
|
|
_hasMore(false),
|
|
_includeSystem(includeSystem),
|
|
_fromTickIncluded(false) {
|
|
|
|
if (_chunkSize == 0) {
|
|
// default chunk size
|
|
_chunkSize = 128 * 1024;
|
|
}
|
|
|
|
_buffer = TRI_CreateSizedStringBuffer(TRI_UNKNOWN_MEM_ZONE, _chunkSize);
|
|
|
|
if (_buffer == nullptr) {
|
|
THROW_ARANGO_EXCEPTION(TRI_ERROR_OUT_OF_MEMORY);
|
|
}
|
|
}
|
|
|
|
~TRI_replication_dump_t () {
|
|
if (_buffer != nullptr) {
|
|
TRI_FreeStringBuffer(TRI_UNKNOWN_MEM_ZONE, _buffer);
|
|
_buffer = nullptr;
|
|
}
|
|
}
|
|
|
|
TRI_vocbase_t* _vocbase;
|
|
TRI_string_buffer_t* _buffer;
|
|
size_t _chunkSize;
|
|
TRI_voc_tick_t _lastFoundTick;
|
|
TRI_shape_sid_t _lastSid;
|
|
struct TRI_shape_s const* _lastShape;
|
|
std::unordered_map<TRI_voc_cid_t, std::string> _collectionNames;
|
|
bool _failed;
|
|
bool _bufferFull;
|
|
bool _hasMore;
|
|
bool _includeSystem;
|
|
bool _fromTickIncluded;
|
|
};
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// --SECTION-- public functions
|
|
// -----------------------------------------------------------------------------
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief dump data from a single collection
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
int TRI_DumpCollectionReplication (TRI_replication_dump_t*,
|
|
struct TRI_vocbase_col_s*,
|
|
TRI_voc_tick_t,
|
|
TRI_voc_tick_t,
|
|
bool,
|
|
bool);
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief dump data from the replication log
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
int TRI_DumpLogReplication (TRI_replication_dump_t*,
|
|
std::unordered_set<TRI_voc_tid_t> const&,
|
|
TRI_voc_tick_t,
|
|
TRI_voc_tick_t,
|
|
TRI_voc_tick_t,
|
|
bool);
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief determine the transactions that were open at a given point in time
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
int TRI_DetermineOpenTransactionsReplication (TRI_replication_dump_t*,
|
|
TRI_voc_tick_t,
|
|
TRI_voc_tick_t);
|
|
|
|
#endif
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// --SECTION-- END-OF-FILE
|
|
// -----------------------------------------------------------------------------
|
|
|
|
// Local Variables:
|
|
// mode: outline-minor
|
|
// outline-regexp: "/// @brief\\|/// {@inheritDoc}\\|/// @page\\|// --SECTION--\\|/// @\\}"
|
|
// End:
|