60 lines
2.0 KiB
C
Executable File
60 lines
2.0 KiB
C
Executable File
/*******************************************************************
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*
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* ttmutex.h 1.0
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*
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* Mutual exclusion object / dummy generic interface.
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*
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* Copyright 1996-1999 by
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* David Turner, Robert Wilhelm, and Werner Lemberg.
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*
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* This file is part of the FreeType project, and may only be used
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* modified and distributed under the terms of the FreeType project
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* license, LICENSE.TXT. By continuing to use, modify, or distribute
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* this file you indicate that you have read the license and
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* understand and accept it fully.
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*
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* Note: This file provides a generic interface. The implementation
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* to compile depends on your system and the type of
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* library you want to build (either singly-threaded,
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* thread-safe or re-entrant).
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*
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* Please read the technical documentation for more details.
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*
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******************************************************************/
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#ifndef TTMUTEX_H
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#define TTMUTEX_H
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#include "ttconfig.h"
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typedef void* TMutex; /* typeless reference to a mutex */
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#ifdef TT_CONFIG_OPTION_THREAD_SAFE /* thread-safe and re-entrant builds */
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#define MUTEX_Create( mutex ) TT_Mutex_Create ( &(mutex) )
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#define MUTEX_Destroy( mutex ) TT_Mutex_Delete ( &(mutex) )
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#define MUTEX_Lock( mutex ) TT_Mutex_Lock ( &(mutex) )
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#define MUTEX_Release( mutex ) TT_Mutex_Release( &(mutex) )
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LOCAL_DEF void TT_Mutex_Create ( TMutex* mutex ); /* Create a new mutex */
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LOCAL_DEF void TT_Mutex_Delete ( TMutex* mutex ); /* Delete a mutex */
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LOCAL_DEF void TT_Mutex_Lock ( TMutex* mutex ); /* Lock a mutex. */
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LOCAL_DEF void TT_Mutex_Release( TMutex* mutex ); /* Release a mutex */
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#else /* for the single-thread build */
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#define MUTEX_Create( mutex ) /* nothing */
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#define MUTEX_Destroy( mutex ) /* nothing */
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#define MUTEX_Lock( mutex ) /* nothing */
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#define MUTEX_Release( mutex ) /* nothing */
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/* No code will be generated for mutex operations */
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#endif /* TT_CONFIG_OPTION_THREAD_SAFE */
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#endif /* TTMUTEX_H */
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/* END */
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