AAX_CMutex.h

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/*================================================================================================*/
/*
 *
 *  Copyright 2014-2015, 2023-2024 Avid Technology, Inc.
 *  All rights reserved.
 *  
 *  This file is part of the Avid AAX SDK.
 *  
 *  The AAX SDK is subject to commercial or open-source licensing.
 *  
 *  By using the AAX SDK, you agree to the terms of both the Avid AAX SDK License
 *  Agreement and Avid Privacy Policy.
 *  
 *  AAX SDK License: https://developer.avid.com/aax
 *  Privacy Policy: https://www.avid.com/legal/privacy-policy-statement
 *  
 *  Or: You may also use this code under the terms of the GPL v3 (see
 *  www.gnu.org/licenses).
 *  
 *  THE AAX SDK IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
 *  EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
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 *
 */
 
#ifndef AAX_CMUTEX_H
#define AAX_CMUTEX_H
 
/*================================================================================================*/
 
class AAX_CMutex
{
public:
    AAX_CMutex();
    ~AAX_CMutex();
    
    bool Lock();
    void Unlock();
    bool Try_Lock();
    
private:
    AAX_CMutex(const AAX_CMutex&);
    AAX_CMutex& operator=(const AAX_CMutex&);
 
    typedef struct opaque_aax_mutex_t * aax_mutex_t;    
    aax_mutex_t     mMutex; 
};
 
class AAX_StLock_Guard
{
public:
    explicit AAX_StLock_Guard(AAX_CMutex& iMutex) : mMutex(iMutex) { mNeedsUnlock = mMutex.Lock(); }
    ~AAX_StLock_Guard() { if (mNeedsUnlock) mMutex.Unlock(); }
    
private:    
    AAX_StLock_Guard(AAX_StLock_Guard const&);
    AAX_StLock_Guard& operator=(AAX_StLock_Guard const&);
 
    AAX_CMutex &    mMutex;
    bool            mNeedsUnlock;
};
 
#endif // AAX_CMUTEX_H