Orthanc/OrthancFramework/Sources/MultiThreading/SharedMessageQueue.h
2025-06-23 19:07:37 +05:30

73 lines
1.9 KiB
C++

/**
* Orthanc - A Lightweight, RESTful DICOM Store
* Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
* Department, University Hospital of Liege, Belgium
* Copyright (C) 2017-2023 Osimis S.A., Belgium
* Copyright (C) 2024-2025 Orthanc Team SRL, Belgium
* Copyright (C) 2021-2025 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
*
* This program is free software: you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program. If not, see
* <http://www.gnu.org/licenses/>.
**/
#pragma once
#include "../IDynamicObject.h"
#include <stdint.h>
#include <list>
#include <boost/thread.hpp>
namespace Orthanc
{
class ORTHANC_PUBLIC SharedMessageQueue : public boost::noncopyable
{
private:
typedef std::list<IDynamicObject*> Queue;
bool isFifo_;
unsigned int maxSize_;
Queue queue_;
boost::mutex mutex_;
boost::condition_variable elementAvailable_;
boost::condition_variable emptied_;
public:
explicit SharedMessageQueue(unsigned int maxSize = 0);
~SharedMessageQueue();
// This transfers the ownership of the message
void Enqueue(IDynamicObject* message);
// The caller is responsible to delete the dequeud message!
IDynamicObject* Dequeue(int32_t millisecondsTimeout);
bool WaitEmpty(int32_t millisecondsTimeout);
bool IsFifoPolicy() const;
bool IsLifoPolicy() const;
void SetFifoPolicy();
void SetLifoPolicy();
void Clear();
size_t GetSize();
};
}