SimpleEventQueueBuffer.h

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/*
 * Deskflow -- mouse and keyboard sharing utility
 * SPDX-FileCopyrightText: (C) 2012 - 2016 Symless Ltd.
 * SPDX-FileCopyrightText: (C) 2004 Chris Schoeneman
 * SPDX-License-Identifier: GPL-2.0-only WITH LicenseRef-OpenSSL-Exception
 */
 
#pragma once
 
#include "arch/IArchMultithread.h"
#include "base/IEventQueueBuffer.h"
 
#include <deque>

class SimpleEventQueueBuffer : public IEventQueueBuffer
{
public:
  SimpleEventQueueBuffer();
  SimpleEventQueueBuffer(SimpleEventQueueBuffer const &) = delete;
  SimpleEventQueueBuffer(SimpleEventQueueBuffer &&) = delete;
  ~SimpleEventQueueBuffer() override;
 
  SimpleEventQueueBuffer &operator=(SimpleEventQueueBuffer const &) = delete;
  SimpleEventQueueBuffer &operator=(SimpleEventQueueBuffer &&) = delete;
 
  // IEventQueueBuffer overrides
  void init() override
  {
    // do nothing
  }
  void waitForEvent(double timeout) override;
  Type getEvent(Event &event, uint32_t &dataID) override;
  bool addEvent(uint32_t dataID) override;
  bool isEmpty() const override;
  EventQueueTimer *newTimer(double duration, bool oneShot) const override;
  void deleteTimer(EventQueueTimer *) const override;
 
private:
  using EventDeque = std::deque<uint32_t>;
 
  ArchMutex m_queueMutex;
  ArchCond m_queueReadyCond;
  bool m_queueReady = false;
  EventDeque m_queue;
};