/*****************************************************************
|
|   Neptune - Simple Message Queue
|
| Copyright (c) 2002-2008, Axiomatic Systems, LLC.
| All rights reserved.
|
| Redistribution and use in source and binary forms, with or without
| modification, are permitted provided that the following conditions are met:
|     * Redistributions of source code must retain the above copyright
|       notice, this list of conditions and the following disclaimer.
|     * Redistributions in binary form must reproduce the above copyright
|       notice, this list of conditions and the following disclaimer in the
|       documentation and/or other materials provided with the distribution.
|     * Neither the name of Axiomatic Systems nor the
|       names of its contributors may be used to endorse or promote products
|       derived from this software without specific prior written permission.
|
| THIS SOFTWARE IS PROVIDED BY AXIOMATIC SYSTEMS ''AS IS'' AND ANY
| EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
| WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
| DISCLAIMED. IN NO EVENT SHALL AXIOMATIC SYSTEMS BE LIABLE FOR ANY
| DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
| (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
| LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
| ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
| (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
| SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
 ****************************************************************/

#ifndef _NPT_SIMPLE_MESSAGE_QUEUE_H_
#define _NPT_SIMPLE_MESSAGE_QUEUE_H_

/*----------------------------------------------------------------------
|   includes
+---------------------------------------------------------------------*/
#include "NptTypes.h"
#include "NptThreads.h"
#include "NptMessaging.h"
#include "NptQueue.h"

/*----------------------------------------------------------------------
|   class references
+---------------------------------------------------------------------*/
struct NPT_SimpleMessageCapsule;

/*----------------------------------------------------------------------
|   NPT_SimpleMessageQueue
+---------------------------------------------------------------------*/
class NPT_SimpleMessageQueue : public NPT_MessageQueue
{
 public:
    // members
    NPT_SimpleMessageQueue();
    ~NPT_SimpleMessageQueue() override;

    // NPT_MessageQueue methods
    NPT_Result QueueMessage(NPT_Message*        message, 
                                    NPT_MessageHandler* handler) override;
    NPT_Result PumpMessage(NPT_Timeout timeout = NPT_TIMEOUT_INFINITE) override;

 private:
    // members
    NPT_Queue<NPT_SimpleMessageCapsule> m_Queue;
};

#endif // _NPT_SIMPLE_MESSAGE_QUEUE_H_
