/************************************************************************************* 
This file is a part of CrashRpt library.

Copyright (c) 2003, Michael Carruth
All rights reserved.

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are permitted provided that the following conditions are met:

* Redistributions of source code must retain the above copyright notice, this 
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* 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 the author 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 THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY 
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OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 
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***************************************************************************************/

// File: AssyncNotification.h
// Description: Provides a way to communicate between sender thread and the main thread.
// Authors: zexspectrum
// Date: 2009

#pragma once
#include "stdafx.h"

struct AssyncNotification
{
    /* Constructor */
    AssyncNotification();  

    // Resets the event
    void Reset();

    // Sets the progress message and percent completed
    void SetProgress(CString sStatusMsg, int percentCompleted, bool bRelative=true);

    // Sets the percent completed
    void SetProgress(int percentCompleted, bool bRelative=true);

    // Returns the current assynchronious operation progress
    void GetProgress(int& nProgressPct, std::vector<CString>& msg_log);

    // Notifies about assynchronious operation completion
    void SetCompleted(int nCompletionStatus);

    // Blocks until assynchronious operation is completed
    int WaitForCompletion();

    // Cancels the assynchronious operation
    void Cancel();

    // Determines if the assynchronious operation was cancelled
    bool IsCancelled();

    // Waits until the feedback is received
    void WaitForFeedback(int &code);

    // Notifies about feedback is ready to be received
    void FeedbackReady(int code);

private:

    CComAutoCriticalSection m_cs; // Protects internal state
    int m_nCompletionStatus;      // Completion status of the assync operation
    HANDLE m_hCompletionEvent;    // Completion event
    HANDLE m_hCancelEvent;        // Cancel event
    HANDLE m_hFeedbackEvent;      // Feddback event
    int m_nPercentCompleted;      // Percent completed
    std::vector<CString> m_statusLog; // Status log
};
