mirror of https://gitee.com/bigwinds/arangodb
134 lines
5.2 KiB
C
134 lines
5.2 KiB
C
////////////////////////////////////////////////////////////////////////////////
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/// @brief versioned index of a collection
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///
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/// @file
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///
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/// DISCLAIMER
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///
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/// Copyright 2010-2011 triagens GmbH, Cologne, Germany
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///
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/// Licensed under the Apache License, Version 2.0 (the "License");
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/// you may not use this file except in compliance with the License.
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/// You may obtain a copy of the License at
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///
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/// http://www.apache.org/licenses/LICENSE-2.0
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///
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/// Unless required by applicable law or agreed to in writing, software
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/// distributed under the License is distributed on an "AS IS" BASIS,
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/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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/// See the License for the specific language governing permissions and
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/// limitations under the License.
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///
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/// Copyright holder is triAGENS GmbH, Cologne, Germany
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///
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/// @author Jan Steemann
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/// @author Copyright 2012, triagens GmbH, Cologne, Germany
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////////////////////////////////////////////////////////////////////////////////
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#ifndef TRIAGENS_DURHAM_VOC_BASE_VERSIONED_INDEX_H
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#define TRIAGENS_DURHAM_VOC_BASE_VERSIONED_INDEX_H 1
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#include "BasicsC/common.h"
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#include "BasicsC/locks.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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// -----------------------------------------------------------------------------
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// --SECTION-- forward declarations
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// -----------------------------------------------------------------------------
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struct TRI_doc_mptr_s;
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struct TRI_doc_operation_context_s;
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// -----------------------------------------------------------------------------
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// --SECTION-- VERSIONED INDEX
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// -----------------------------------------------------------------------------
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// -----------------------------------------------------------------------------
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// --SECTION-- public types
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @addtogroup VocBase
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/// @{
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////////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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/// @brief versioned index of a collection
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////////////////////////////////////////////////////////////////////////////////
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typedef struct TRI_versioned_index_s {
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struct TRI_doc_mptr_s** _table;
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uint64_t _nrAlloc;
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uint64_t _nrUsed;
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TRI_read_write_lock_t _lock;
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}
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TRI_versioned_index_t;
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////////////////////////////////////////////////////////////////////////////////
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/// @}
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////////////////////////////////////////////////////////////////////////////////
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// -----------------------------------------------------------------------------
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// --SECTION-- constructors / destructors
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @addtogroup VocBase
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/// @{
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////////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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/// @brief create the versioned index
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////////////////////////////////////////////////////////////////////////////////
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TRI_versioned_index_t* TRI_CreateVersionedIndex (void);
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////////////////////////////////////////////////////////////////////////////////
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/// @brief free the versioned index
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////////////////////////////////////////////////////////////////////////////////
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void TRI_FreeVersionedIndex (TRI_versioned_index_t* const);
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////////////////////////////////////////////////////////////////////////////////
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/// @brief adds an element to the versioned index
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////////////////////////////////////////////////////////////////////////////////
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int TRI_InsertVersionedIndex (TRI_versioned_index_t* const idx,
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struct TRI_doc_operation_context_s* const context,
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struct TRI_doc_mptr_s* const doc);
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////////////////////////////////////////////////////////////////////////////////
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/// @brief updates an element in the versioned index
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////////////////////////////////////////////////////////////////////////////////
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int TRI_UpdateVersionedIndex (TRI_versioned_index_t* const,
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struct TRI_doc_operation_context_s* const,
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struct TRI_doc_mptr_s* const);
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////////////////////////////////////////////////////////////////////////////////
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/// @brief removes an element from the versioned index
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////////////////////////////////////////////////////////////////////////////////
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int TRI_DeleteVersionedIndex (TRI_versioned_index_t* const,
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struct TRI_doc_operation_context_s* const,
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struct TRI_doc_mptr_s* const);
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////////////////////////////////////////////////////////////////////////////////
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/// @}
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////////////////////////////////////////////////////////////////////////////////
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#ifdef __cplusplus
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}
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#endif
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#endif
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// Local Variables:
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// mode: outline-minor
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// outline-regexp: "^\\(/// @brief\\|/// {@inheritDoc}\\|/// @addtogroup\\|// --SECTION--\\|/// @\\}\\)"
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// End:
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