mirror of https://gitee.com/bigwinds/arangodb
105 lines
3.0 KiB
C++
105 lines
3.0 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 Jan Steemann
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////////////////////////////////////////////////////////////////////////////////
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#include "QueryProfile.h"
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#include "Aql/Query.h"
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#include "Aql/QueryList.h"
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#include "Basics/EnumIterator.h"
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#include "Basics/system-functions.h"
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#include "VocBase/vocbase.h"
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#include <velocypack/Builder.h>
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#include <velocypack/velocypack-aliases.h>
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using namespace arangodb;
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using namespace arangodb::aql;
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/// @brief create a profile
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QueryProfile::QueryProfile(Query* query)
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: _query(query),
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_lastStamp(query->startTime()),
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_tracked(false) {
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for (auto& it : _timers) {
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it = 0.0; // reset timers
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}
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registerInQueryList(query);
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}
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/// @brief destroy a profile
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QueryProfile::~QueryProfile() {
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unregisterFromQueryList();
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}
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void QueryProfile::registerInQueryList(Query* query) {
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auto queryList = query->vocbase().queryList();
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_tracked = queryList->insert(query);
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}
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void QueryProfile::unregisterFromQueryList() noexcept {
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// only remove from list when the query was inserted into it...
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if (_tracked) {
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auto queryList = _query->vocbase().queryList();
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try {
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queryList->remove(_query);
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} catch (...) {
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}
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_tracked = false;
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}
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}
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/// @brief sets a state to done
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double QueryProfile::setStateDone(QueryExecutionState::ValueType state) {
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double const now = TRI_microtime();
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if (state != QueryExecutionState::ValueType::INVALID_STATE &&
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state != QueryExecutionState::ValueType::KILLED) {
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// record duration of state
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_timers[static_cast<int>(state)] = now - _lastStamp;
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}
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// set timestamp
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_lastStamp = now;
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return now;
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}
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/// @brief sets the absolute end time for an execution state
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void QueryProfile::setStateEnd(QueryExecutionState::ValueType state, double time) {
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_timers[static_cast<int>(state)] = time - _lastStamp;
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}
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/// @brief convert the profile to VelocyPack
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void QueryProfile::toVelocyPack(VPackBuilder& builder) const {
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VPackObjectBuilder guard(&builder, "profile", true);
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for (auto state : ENUM_ITERATOR(QueryExecutionState::ValueType, INITIALIZATION, FINALIZATION)) {
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double const value = _timers[static_cast<size_t>(state)];
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if (value >= 0.0) {
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builder.add(QueryExecutionState::toString(state), VPackValue(value));
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}
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}
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}
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