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| 1 #include "SkThread.h" | |
| 2 | |
| 3 #include <pthread.h> | |
| 4 #include <errno.h> | |
| 5 | |
| 6 SkMutex gAtomicMutex; | |
| 7 | |
| 8 int32_t sk_atomic_inc(int32_t* addr) | |
| 9 { | |
| 10 SkAutoMutexAcquire ac(gAtomicMutex); | |
| 11 | |
| 12 int32_t value = *addr; | |
| 13 *addr = value + 1; | |
| 14 return value; | |
| 15 } | |
| 16 | |
| 17 int32_t sk_atomic_dec(int32_t* addr) | |
| 18 { | |
| 19 SkAutoMutexAcquire ac(gAtomicMutex); | |
| 20 | |
| 21 int32_t value = *addr; | |
| 22 *addr = value - 1; | |
| 23 return value; | |
| 24 } | |
| 25 | |
| 26 ////////////////////////////////////////////////////////////////////////////// | |
| 27 | |
| 28 static void print_pthread_error(int status) | |
| 29 { | |
| 30 switch (status) { | |
| 31 case 0: // success | |
| 32 break; | |
| 33 case EINVAL: | |
| 34 printf("pthread error [%d] EINVAL\n", status); | |
| 35 break; | |
| 36 case EBUSY: | |
| 37 printf("pthread error [%d] EBUSY\n", status); | |
| 38 break; | |
| 39 default: | |
| 40 printf("pthread error [%d] unknown\n", status); | |
| 41 break; | |
| 42 } | |
| 43 } | |
| 44 | |
| 45 SkMutex::SkMutex(bool isGlobal) : fIsGlobal(isGlobal) | |
| 46 { | |
| 47 if (sizeof(pthread_mutex_t) > sizeof(fStorage)) | |
| 48 { | |
| 49 SkDEBUGF(("pthread mutex size = %d\n", sizeof(pthread_mutex_t))); | |
| 50 SkASSERT(!"mutex storage is too small"); | |
| 51 } | |
| 52 | |
| 53 int status; | |
| 54 pthread_mutexattr_t attr; | |
| 55 | |
| 56 status = pthread_mutexattr_init(&attr); | |
| 57 print_pthread_error(status); | |
| 58 SkASSERT(0 == status); | |
| 59 | |
| 60 status = pthread_mutex_init((pthread_mutex_t*)fStorage, &attr); | |
| 61 print_pthread_error(status); | |
| 62 SkASSERT(0 == status); | |
| 63 } | |
| 64 | |
| 65 SkMutex::~SkMutex() | |
| 66 { | |
| 67 int status = pthread_mutex_destroy((pthread_mutex_t*)fStorage); | |
| 68 | |
| 69 // only report errors on non-global mutexes | |
| 70 if (!fIsGlobal) | |
| 71 { | |
| 72 print_pthread_error(status); | |
| 73 SkASSERT(0 == status); | |
| 74 } | |
| 75 } | |
| 76 | |
| 77 void SkMutex::acquire() | |
| 78 { | |
| 79 int status = pthread_mutex_lock((pthread_mutex_t*)fStorage); | |
| 80 print_pthread_error(status); | |
| 81 SkASSERT(0 == status); | |
| 82 } | |
| 83 | |
| 84 void SkMutex::release() | |
| 85 { | |
| 86 int status = pthread_mutex_unlock((pthread_mutex_t*)fStorage); | |
| 87 print_pthread_error(status); | |
| 88 SkASSERT(0 == status); | |
| 89 } | |
| 90 | |
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Chromium Code Reviews
Issue 113827:
Remove the remainder of the skia source code from the Chromium repo.... (Closed)
Base URL: svn://chrome-svn/chrome/trunk/src/