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| 5496 | leency | 1 | /******************************************************************* |
| 2 | * |
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| 3 | * ttmutex.h 1.0 |
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| 4 | * |
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| 5 | * Mutual exclusion object / dummy generic interface. |
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| 6 | * |
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| 7 | * Copyright 1996-1999 by |
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| 8 | * David Turner, Robert Wilhelm, and Werner Lemberg. |
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| 9 | * |
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| 10 | * This file is part of the FreeType project, and may only be used |
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| 11 | * modified and distributed under the terms of the FreeType project |
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| 12 | * license, LICENSE.TXT. By continuing to use, modify, or distribute |
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| 13 | * this file you indicate that you have read the license and |
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| 14 | * understand and accept it fully. |
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| 15 | * |
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| 16 | * Note: This file provides a generic interface. The implementation |
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| 17 | * to compile depends on your system and the type of |
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| 18 | * library you want to build (either singly-threaded, |
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| 19 | * thread-safe or re-entrant). |
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| 20 | * |
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| 21 | * Please read the technical documentation for more details. |
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| 22 | * |
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| 23 | ******************************************************************/ |
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| 24 | |||
| 25 | #ifndef TTMUTEX_H |
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| 26 | #define TTMUTEX_H |
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| 27 | |||
| 28 | #include "ttconfig.h" |
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| 29 | |||
| 30 | |||
| 31 | typedef void* TMutex; /* typeless reference to a mutex */ |
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| 32 | |||
| 33 | #ifdef TT_CONFIG_OPTION_THREAD_SAFE /* thread-safe and re-entrant builds */ |
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| 34 | |||
| 35 | #define MUTEX_Create( mutex ) TT_Mutex_Create ( &(mutex) ) |
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| 36 | #define MUTEX_Destroy( mutex ) TT_Mutex_Delete ( &(mutex) ) |
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| 37 | #define MUTEX_Lock( mutex ) TT_Mutex_Lock ( &(mutex) ) |
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| 38 | #define MUTEX_Release( mutex ) TT_Mutex_Release( &(mutex) ) |
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| 39 | |||
| 40 | LOCAL_DEF void TT_Mutex_Create ( TMutex* mutex ); /* Create a new mutex */ |
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| 41 | LOCAL_DEF void TT_Mutex_Delete ( TMutex* mutex ); /* Delete a mutex */ |
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| 42 | LOCAL_DEF void TT_Mutex_Lock ( TMutex* mutex ); /* Lock a mutex. */ |
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| 43 | LOCAL_DEF void TT_Mutex_Release( TMutex* mutex ); /* Release a mutex */ |
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| 44 | |||
| 45 | #else /* for the single-thread build */ |
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| 46 | |||
| 47 | #define MUTEX_Create( mutex ) /* nothing */ |
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| 48 | #define MUTEX_Destroy( mutex ) /* nothing */ |
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| 49 | #define MUTEX_Lock( mutex ) /* nothing */ |
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| 50 | #define MUTEX_Release( mutex ) /* nothing */ |
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| 51 | |||
| 52 | /* No code will be generated for mutex operations */ |
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| 53 | |||
| 54 | #endif /* TT_CONFIG_OPTION_THREAD_SAFE */ |
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| 55 | |||
| 56 | #endif /* TTMUTEX_H */ |
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| 57 | |||
| 58 | |||
| 59 | /* END */ |