| 1 | /* Copyright (c) 2001, Stanford University
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| 2 | * All rights reserved.
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| 3 | *
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| 4 | * See the file LICENSE.txt for information on redistributing this software.
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| 5 | */
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| 6 |
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| 7 | #ifndef CR_THREADS_H
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| 8 | #define CR_THREADS_H
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| 9 |
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| 10 | #include <iprt/cdefs.h>
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| 11 |
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| 12 | #ifdef __cplusplus
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| 13 | extern "C" {
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| 14 | #endif
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| 15 |
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| 16 | #include "chromium.h"
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| 17 | #include "cr_bits.h"
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| 18 |
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| 19 | #ifdef WINDOWS
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| 20 | #define WIN32_LEAN_AND_MEAN
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| 21 | #include <windows.h>
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| 22 | #else
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| 23 | #include <pthread.h>
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| 24 | #include <semaphore.h>
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| 25 | #endif
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| 26 |
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| 27 |
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| 28 | /*
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| 29 | * Handle for Thread-Specific Data
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| 30 | */
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| 31 | typedef struct {
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| 32 | #ifdef WINDOWS
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| 33 | DWORD key;
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| 34 | #else
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| 35 | pthread_key_t key;
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| 36 | #endif
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| 37 | int initMagic;
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| 38 | } CRtsd;
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| 39 |
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| 40 |
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| 41 | extern DECLEXPORT(void) crInitTSD(CRtsd *tsd);
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| 42 | extern DECLEXPORT(void) crInitTSDF(CRtsd *tsd, void (*destructor)(void *));
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| 43 | extern DECLEXPORT(void) crFreeTSD(CRtsd *tsd);
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| 44 | extern DECLEXPORT(void) crSetTSD(CRtsd *tsd, void *ptr);
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| 45 | extern DECLEXPORT(void *) crGetTSD(CRtsd *tsd);
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| 46 | extern DECLEXPORT(unsigned long) crThreadID(void);
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| 47 |
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| 48 |
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| 49 | /* Mutex datatype */
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| 50 | #ifdef WINDOWS
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| 51 | typedef CRITICAL_SECTION CRmutex;
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| 52 | #else
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| 53 | typedef pthread_mutex_t CRmutex;
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| 54 | #endif
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| 55 |
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| 56 | extern DECLEXPORT(void) crInitMutex(CRmutex *mutex);
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| 57 | extern DECLEXPORT(void) crFreeMutex(CRmutex *mutex);
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| 58 | extern DECLEXPORT(void) crLockMutex(CRmutex *mutex);
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| 59 | extern DECLEXPORT(void) crUnlockMutex(CRmutex *mutex);
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| 60 |
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| 61 |
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| 62 | /* Condition variable datatype */
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| 63 | #ifdef WINDOWS
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| 64 | typedef int CRcondition;
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| 65 | #else
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| 66 | typedef pthread_cond_t CRcondition;
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| 67 | #endif
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| 68 |
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| 69 | extern DECLEXPORT(void) crInitCondition(CRcondition *cond);
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| 70 | extern DECLEXPORT(void) crFreeCondition(CRcondition *cond);
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| 71 | extern DECLEXPORT(void) crWaitCondition(CRcondition *cond, CRmutex *mutex);
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| 72 | extern DECLEXPORT(void) crSignalCondition(CRcondition *cond);
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| 73 |
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| 74 |
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| 75 | /* Barrier datatype */
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| 76 | typedef struct {
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| 77 | unsigned int count;
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| 78 | #ifdef WINDOWS
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| 79 | HANDLE hEvents[CR_MAX_CONTEXTS];
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| 80 | #else
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| 81 | unsigned int waiting;
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| 82 | pthread_cond_t cond;
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| 83 | pthread_mutex_t mutex;
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| 84 | #endif
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| 85 | } CRbarrier;
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| 86 |
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| 87 | extern DECLEXPORT(void) crInitBarrier(CRbarrier *b, unsigned int count);
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| 88 | extern DECLEXPORT(void) crFreeBarrier(CRbarrier *b);
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| 89 | extern DECLEXPORT(void) crWaitBarrier(CRbarrier *b);
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| 90 |
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| 91 |
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| 92 | /* Semaphores */
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| 93 | #ifdef WINDOWS
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| 94 | typedef int CRsemaphore;
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| 95 | #else
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| 96 | typedef sem_t CRsemaphore;
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| 97 | #endif
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| 98 |
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| 99 | extern DECLEXPORT(void) crInitSemaphore(CRsemaphore *s, unsigned int count);
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| 100 | extern DECLEXPORT(void) crWaitSemaphore(CRsemaphore *s);
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| 101 | extern DECLEXPORT(void) crSignalSemaphore(CRsemaphore *s);
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| 102 |
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| 103 |
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| 104 | #ifdef __cplusplus
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| 105 | }
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| 106 | #endif
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| 107 |
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| 108 | #endif /* CR_THREADS_H */
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