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arangodb/arangod/Scheduler/TaskManager.h

106 lines
3.6 KiB
C++

////////////////////////////////////////////////////////////////////////////////
/// @brief abstract base class for tasks
///
/// @file
/// Tasks are handled by the scheduler. The scheduler calls the task callback
/// as soon as a specific event occurs.
///
/// 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 2008-2013, triAGENS GmbH, Cologne, Germany
////////////////////////////////////////////////////////////////////////////////
#ifndef ARANGODB_SCHEDULER_TASK_MANAGER_H
#define ARANGODB_SCHEDULER_TASK_MANAGER_H 1
#include "Basics/Common.h"
#include "Scheduler/events.h"
namespace triagens {
namespace rest {
class Task;
class Scheduler;
////////////////////////////////////////////////////////////////////////////////
/// @ingroup Scheduler
/// @brief abstract base class for tasks
////////////////////////////////////////////////////////////////////////////////
class TaskManager {
private:
TaskManager (TaskManager const&);
TaskManager& operator= (TaskManager const&);
public:
////////////////////////////////////////////////////////////////////////////////
/// @brief constructor
////////////////////////////////////////////////////////////////////////////////
TaskManager () {
}
////////////////////////////////////////////////////////////////////////////////
/// @brief destructor
////////////////////////////////////////////////////////////////////////////////
virtual ~TaskManager () {
}
public:
////////////////////////////////////////////////////////////////////////////////
/// @brief deletes a task
////////////////////////////////////////////////////////////////////////////////
void deleteTask (Task* task);
////////////////////////////////////////////////////////////////////////////////
/// @brief called to setup the callback information
///
/// Called to setup all the necessary information within the event loop. In case
/// of a multi-threaded scheduler the event loop identifier is supplied.
////////////////////////////////////////////////////////////////////////////////
bool setupTask (Task*, Scheduler*, EventLoop loop);
////////////////////////////////////////////////////////////////////////////////
/// @brief called to clear the callback information
////////////////////////////////////////////////////////////////////////////////
void cleanupTask (Task*);
};
}
}
#endif
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