mirror of https://gitee.com/bigwinds/arangodb
142 lines
4.0 KiB
C++
142 lines
4.0 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2014-2016 ArangoDB GmbH, Cologne, Germany
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/// Copyright 2004-2014 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 ArangoDB GmbH, Cologne, Germany
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///
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/// @author Dr. Frank Celler
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////////////////////////////////////////////////////////////////////////////////
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#ifndef ARANGOD_VOC_BASE_VOC_TYPES_H
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#define ARANGOD_VOC_BASE_VOC_TYPES_H 1
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#include "Basics/Common.h"
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#include <velocypack/Slice.h>
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/// @brief tick type (56bit)
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typedef uint64_t TRI_voc_tick_t;
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/// @brief collection identifier type
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typedef uint64_t TRI_voc_cid_t;
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/// @brief datafile identifier type
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typedef uint64_t TRI_voc_fid_t;
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/// @brief revision identifier type
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typedef uint64_t TRI_voc_rid_t;
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/// @brief transaction identifier type
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typedef uint64_t TRI_voc_tid_t;
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/// @brief size type
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typedef uint32_t TRI_voc_size_t;
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/// @brief signed size type
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typedef int32_t TRI_voc_ssize_t;
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/// @brief index identifier
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typedef TRI_voc_tick_t TRI_idx_iid_t;
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/// @brief crc type
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typedef uint32_t TRI_voc_crc_t;
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/// @brief server id type
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typedef uint64_t TRI_server_id_t;
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/// @brief Convert a revision ID to a string
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std::string TRI_RidToString(TRI_voc_rid_t rid);
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/// @brief Convert a string into a revision ID, returns UINT64_MAX if invalid
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TRI_voc_rid_t TRI_StringToRid(std::string const& ridStr, bool& isOld, bool warn);
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/// @brief Convert a string into a revision ID, no check variant
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TRI_voc_rid_t TRI_StringToRid(char const* p, size_t len, bool warn);
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/// @brief Convert a string into a revision ID, returns UINT64_MAX if invalid
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TRI_voc_rid_t TRI_StringToRid(char const* p, size_t len, bool& isOld, bool warn);
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/// @brief enum for write operations
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enum TRI_voc_document_operation_e : uint8_t {
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TRI_VOC_DOCUMENT_OPERATION_UNKNOWN = 0,
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TRI_VOC_DOCUMENT_OPERATION_INSERT,
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TRI_VOC_DOCUMENT_OPERATION_UPDATE,
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TRI_VOC_DOCUMENT_OPERATION_REPLACE,
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TRI_VOC_DOCUMENT_OPERATION_REMOVE
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};
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/// @brief server operation modes
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enum TRI_vocbase_operationmode_e {
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TRI_VOCBASE_MODE_NORMAL = 1, // CRUD is allowed
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TRI_VOCBASE_MODE_NO_CREATE = 2, // C & U not allowed RD allowed
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};
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/// @brief edge direction
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enum TRI_edge_direction_e {
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TRI_EDGE_ANY = 0, // can only be used for searching
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TRI_EDGE_IN = 1,
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TRI_EDGE_OUT = 2
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};
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/// @brief Hash and Equal comparison for a vector of VPackSlice
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namespace std {
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template <>
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struct hash<std::vector<arangodb::velocypack::Slice>> {
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size_t operator()(std::vector<arangodb::velocypack::Slice> const& x) const {
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std::hash<arangodb::velocypack::Slice> sliceHash;
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size_t res = 0xdeadbeef;
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for (auto& el : x) {
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res ^= sliceHash(el);
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}
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return res;
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}
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};
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}
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struct DocumentDescriptor {
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DocumentDescriptor() : _revisionId(0), _vpack(nullptr) {}
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DocumentDescriptor(TRI_voc_rid_t revisionId, uint8_t const* vpack) : _revisionId(revisionId), _vpack(vpack) {}
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bool empty() const { return _vpack == nullptr; }
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void reset(DocumentDescriptor const& other) {
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_revisionId = other._revisionId;
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_vpack = other._vpack;
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}
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void clear() {
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_revisionId = 0;
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_vpack = nullptr;
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}
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TRI_voc_rid_t _revisionId;
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uint8_t const* _vpack;
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};
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/// @brief databases list structure
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struct TRI_vocbase_t;
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struct DatabasesLists {
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std::unordered_map<std::string, TRI_vocbase_t*> _databases;
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std::unordered_map<std::string, TRI_vocbase_t*> _coordinatorDatabases;
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std::unordered_set<TRI_vocbase_t*> _droppedDatabases;
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};
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#endif
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