mirror of https://gitee.com/bigwinds/arangodb
117 lines
3.7 KiB
C++
117 lines
3.7 KiB
C++
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief tasks used to handle timer events
|
|
///
|
|
/// @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 Dr. Frank Celler
|
|
/// @author Achim Brandt
|
|
/// @author Copyright 2014, ArangoDB GmbH, Cologne, Germany
|
|
/// @author Copyright 2008-2014, triAGENS GmbH, Cologne, Germany
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
#include "TimerTask.h"
|
|
|
|
#include "Basics/json.h"
|
|
#include "Basics/logging.h"
|
|
#include "Scheduler/Scheduler.h"
|
|
|
|
using namespace std;
|
|
using namespace triagens::basics;
|
|
using namespace triagens::rest;
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// constructors and destructors
|
|
// -----------------------------------------------------------------------------
|
|
|
|
TimerTask::TimerTask (std::string const& id,
|
|
double seconds)
|
|
: Task(id, "TimerTask"),
|
|
_watcher(nullptr),
|
|
_seconds(seconds) {
|
|
}
|
|
|
|
TimerTask::~TimerTask () {
|
|
cleanup();
|
|
}
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// Task methods
|
|
// -----------------------------------------------------------------------------
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief get a task specific description in JSON format
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
void TimerTask::getDescription (TRI_json_t* json) const {
|
|
TRI_Insert3ObjectJson(TRI_UNKNOWN_MEM_ZONE, json, "type", TRI_CreateStringCopyJson(TRI_UNKNOWN_MEM_ZONE, "timed", strlen("timed")));
|
|
TRI_Insert3ObjectJson(TRI_UNKNOWN_MEM_ZONE, json, "offset", TRI_CreateNumberJson(TRI_UNKNOWN_MEM_ZONE, _seconds));
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief set up task
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
bool TimerTask::setup (Scheduler* scheduler, EventLoop loop) {
|
|
_scheduler = scheduler;
|
|
_loop = loop;
|
|
|
|
if (0.0 < _seconds) {
|
|
_watcher = _scheduler->installTimerEvent(loop, this, _seconds);
|
|
LOG_TRACE("armed TimerTask with %f seconds", _seconds);
|
|
}
|
|
else {
|
|
_watcher = nullptr;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void TimerTask::cleanup () {
|
|
if (_scheduler != nullptr) {
|
|
_scheduler->uninstallEvent(_watcher);
|
|
}
|
|
_watcher = nullptr;
|
|
}
|
|
|
|
bool TimerTask::handleEvent (EventToken token,
|
|
EventType revents) {
|
|
bool result = true;
|
|
|
|
if (token == _watcher) {
|
|
if (revents & EVENT_TIMER) {
|
|
cleanup();
|
|
result = handleTimeout();
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// --SECTION-- END-OF-FILE
|
|
// -----------------------------------------------------------------------------
|
|
|
|
// Local Variables:
|
|
// mode: outline-minor
|
|
// outline-regexp: "/// @brief\\|/// {@inheritDoc}\\|/// @page\\|// --SECTION--\\|/// @\\}"
|
|
// End:
|