IoTimeoutManager.h

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/*  IoTimeoutManager.h - IO timeout manager
    Copyright (C) 2001-2004 Mark Weaver
    Written by Mark Weaver <mark@npsl.co.uk>

    Part of the Open-Win32 library.
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.

    This library 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
    Library General Public License for more details.

    You should have received a copy of the GNU Library General Public
    License along with this library; if not, write to the
    Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA  02111-1307, USA.
*/

#ifndef OW32_IoTimeoutManager_h
#define OW32_IoTimeoutManager_h

#include <OW32/windows.h>
#include <OW32/OW32Libs.h>

namespace OW32
{

class CIoTimeoutCallback
{
public:
    virtual void onTimeout(LPVOID key) = 0;
};

class CIoTimeoutDrainCallback
{
public:
    virtual bool drainTimeout(CIoTimeoutCallback *pCallback, LPVOID key) = 0;
    
};

#ifdef _MSC_VER
#pragma warning(disable: 4251)
#endif

class OW32_LIB_EXPORT CIoTimeoutManager
{
public:
    CIoTimeoutManager() {}

    virtual ~CIoTimeoutManager() {}

    virtual bool addTimeout(CIoTimeoutCallback *pCallback, LPVOID key, __int64 after, bool *fUpdated = NULL) = 0;

    virtual bool updateTimeout(CIoTimeoutCallback *pCallback, LPVOID key, __int64 after, bool *fUpdated = NULL) = 0;

    virtual bool removeTimeout(LPVOID key) = 0;

    virtual void drainTimeouts(CIoTimeoutDrainCallback *pCallback) = 0;

    virtual bool shutdown() = 0;

private:
    CIoTimeoutManager(const CIoTimeoutManager &other);
    CIoTimeoutManager &operator=(const CIoTimeoutManager &other);
};

#ifdef _MSC_VER
#pragma warning(default: 4251)
#endif

} // namespace OW32

#endif // OW32_IoTimeoutManager_h

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