mirror of https://gitee.com/bigwinds/arangodb
139 lines
5.1 KiB
C++
139 lines
5.1 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// @brief timed V8 task
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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 2014 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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/// @author Copyright 2014, triAGENS GmbH, Cologne, Germany
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////////////////////////////////////////////////////////////////////////////////
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#include "V8TimerTask.h"
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#include "Basics/json.h"
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#include "Dispatcher/Dispatcher.h"
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#include "Scheduler/Scheduler.h"
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#include "V8/v8-conv.h"
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#include "V8Server/V8Job.h"
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#include "VocBase/server.h"
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using namespace std;
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using namespace triagens::rest;
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using namespace triagens::arango;
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// -----------------------------------------------------------------------------
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// --SECTION-- constructors and destructors
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @brief constructor
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////////////////////////////////////////////////////////////////////////////////
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V8TimerTask::V8TimerTask (string const& id,
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string const& name,
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TRI_vocbase_t* vocbase,
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ApplicationV8* v8Dealer,
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Scheduler* scheduler,
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Dispatcher* dispatcher,
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double offset,
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string const& command,
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TRI_json_t* parameters)
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: Task(id, name),
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TimerTask(id, (offset <= 0.0 ? 0.00001 : offset)), // offset must be (at least slightly) greater than zero, otherwise
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// the timertask will not execute the task at all
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_vocbase(vocbase),
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_v8Dealer(v8Dealer),
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_dispatcher(dispatcher),
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_command(command),
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_parameters(parameters),
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_created(TRI_microtime()) {
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TRI_ASSERT(vocbase != nullptr);
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// increase reference counter for the database used
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TRI_UseVocBase(_vocbase);
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief destructor
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////////////////////////////////////////////////////////////////////////////////
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V8TimerTask::~V8TimerTask () {
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// decrease reference counter for the database used
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TRI_ReleaseVocBase(_vocbase);
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if (_parameters != nullptr) {
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TRI_FreeJson(TRI_UNKNOWN_MEM_ZONE, _parameters);
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}
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}
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// -----------------------------------------------------------------------------
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// --SECTION-- TimerTask methods
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @brief get a task specific description in JSON format
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////////////////////////////////////////////////////////////////////////////////
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void V8TimerTask::getDescription (TRI_json_t* json) {
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TimerTask::getDescription(json);
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TRI_json_t* created = TRI_CreateNumberJson(TRI_UNKNOWN_MEM_ZONE, _created);
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TRI_Insert3ArrayJson(TRI_UNKNOWN_MEM_ZONE, json, "created", created);
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TRI_json_t* cmd = TRI_CreateString2CopyJson(TRI_UNKNOWN_MEM_ZONE, _command.c_str(), _command.size());
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TRI_Insert3ArrayJson(TRI_UNKNOWN_MEM_ZONE, json, "command", cmd);
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TRI_json_t* db = TRI_CreateStringCopyJson(TRI_UNKNOWN_MEM_ZONE, _vocbase->_name);
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TRI_Insert3ArrayJson(TRI_UNKNOWN_MEM_ZONE, json, "database", db);
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief handles the timer event
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////////////////////////////////////////////////////////////////////////////////
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bool V8TimerTask::handleTimeout () {
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V8Job* job = new V8Job(
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_vocbase,
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_v8Dealer,
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"(function (params) { " + _command + " } )(params);",
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_parameters);
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if (_dispatcher->addJob(job) != TRI_ERROR_NO_ERROR) {
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// just in case the dispatcher cannot accept the job (e.g. when shutting down)
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delete job;
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}
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// note: this will destroy the task (i.e. ourselves!!)
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_scheduler->destroyTask(this);
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return true;
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}
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// -----------------------------------------------------------------------------
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// --SECTION-- END-OF-FILE
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// -----------------------------------------------------------------------------
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// Local Variables:
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// mode: outline-minor
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// outline-regexp: "/// @brief\\|/// {@inheritDoc}\\|/// @page\\|// --SECTION--\\|/// @\\}"
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// End:
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