fbxsync.h

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/****************************************************************************************
 
   Copyright (C) 2012 Autodesk, Inc.
   All rights reserved.
 
   Use of this software is subject to the terms of the Autodesk license agreement
   provided at the time of installation or download, or which otherwise accompanies
   this software in either electronic or hard copy form.
 
****************************************************************************************/

#ifndef _FBXSDK_CORE_SYNC_H_
#define _FBXSDK_CORE_SYNC_H_

#include <fbxsdk/fbxsdk_def.h>

#include <fbxsdk/core/sync/fbxclock.h>
#include <fbxsdk/core/sync/fbxthread.h>

#include <fbxsdk/fbxsdk_nsbegin.h>

class FbxMutexImpl;
class FbxSemaphoreImpl;
class FbxGateImpl;

class FBXSDK_DLL FbxSpinLock
{
public:
    FbxSpinLock();

    void Acquire();

    void Release();

private:
    FbxAtomic mSpinLock;
};

class FBXSDK_DLL FbxMutex
{
public:
    FbxMutex(bool pInitialOwnership=false);
    virtual ~FbxMutex(); 

    void Acquire();

    bool TryAcquire(unsigned int pRetryCount);

    void Release();

private:
    FbxMutexImpl* mImpl;
};

class FBXSDK_DLL FbxSemaphore
{
public:
    FbxSemaphore(); 
    virtual ~FbxSemaphore(); 

    bool Wait(unsigned int pCount=1);

    bool Signal(unsigned int pCount=1);

private:
    FbxSemaphoreImpl* mImpl;
};

class FBXSDK_DLL FbxGate
{
public:
    FbxGate(); 
    virtual ~FbxGate(); 

    void Open();

    void Close();

    bool IsOpen();

    bool Wait();

private:
    FbxGateImpl* mImpl;
};

class FBXSDK_DLL FbxSyncStack
{
public:
    struct Item
    {
        Item* mNext;
        inline Item(){ mNext = NULL; }
        inline Item* Set(Item* pNext){ return mNext = pNext; }
        inline Item* Next(){ return mNext; }
    };

    FbxSyncStack();

    void Push(Item* pItem);

    Item* Pop();

private:
    FbxSpinLock mLock;
    Item*       mTop;
};

#include <fbxsdk/fbxsdk_nsend.h>

#endif /* _FBXSDK_CORE_SYNC_H_ */