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Diffstat (limited to 'tests/condvar5.c')
-rw-r--r-- | tests/condvar5.c | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/tests/condvar5.c b/tests/condvar5.c new file mode 100644 index 0000000..e3b5e94 --- /dev/null +++ b/tests/condvar5.c @@ -0,0 +1,140 @@ +/* + * File: condvar5.c + * + * Test Synopsis: + * - Test pthread_cond_broadcast. + * + * Test Method (Validation or Falsification): + * - Validation + * + * Requirements Tested: + * - + * + * Features Tested: + * - + * + * Cases Tested: + * - + * + * Description: + * - Test broadcast with one waiting CV. + * + * Environment: + * - + * + * Input: + * - None. + * + * Output: + * - File name, Line number, and failed expression on failure. + * - No output on success. + * + * Assumptions: + * - + * + * Pass Criteria: + * - pthread_cond_timedwait returns 0. + * - Process returns zero exit status. + * + * Fail Criteria: + * - pthread_cond_timedwait returns ETIMEDOUT. + * - Process returns non-zero exit status. + */ + +#include "test.h" +#include <sys/timeb.h> + +typedef struct cvthing_t_ cvthing_t; + +struct cvthing_t_ { + pthread_cond_t notbusy; + pthread_mutex_t lock; + int shared; +}; + +static cvthing_t cvthing = { + PTHREAD_COND_INITIALIZER, + PTHREAD_MUTEX_INITIALIZER, + 0 +}; + +enum { + NUMTHREADS = 2 +}; + +void * +mythread(void * arg) +{ + assert(pthread_mutex_lock(&cvthing.lock) == 0); + + cvthing.shared++; + + assert(pthread_mutex_unlock(&cvthing.lock) == 0); + + assert(pthread_cond_broadcast(&cvthing.notbusy) == 0); + + return 0; +} + +int +main() +{ + pthread_t t[NUMTHREADS]; + struct timespec abstime = { 0, 0 }; +#if defined(__MINGW32__) + struct timeb currSysTime; +#else + struct _timeb currSysTime; +#endif + const DWORD NANOSEC_PER_MILLISEC = 1000000; + + cvthing.shared = 0; + + assert((t[0] = pthread_self()) != NULL); + + assert(cvthing.notbusy == PTHREAD_COND_INITIALIZER); + + assert(cvthing.lock == PTHREAD_MUTEX_INITIALIZER); + + assert(pthread_mutex_lock(&cvthing.lock) == 0); + + assert(cvthing.lock != PTHREAD_MUTEX_INITIALIZER); + + /* get current system time */ + _ftime(&currSysTime); + + abstime.tv_sec = currSysTime.time; + abstime.tv_nsec = NANOSEC_PER_MILLISEC * currSysTime.millitm; + + abstime.tv_sec += 5; + + assert(pthread_cond_timedwait(&cvthing.notbusy, &cvthing.lock, &abstime) == ETIMEDOUT); + + assert(cvthing.notbusy != PTHREAD_COND_INITIALIZER); + + assert(pthread_create(&t[1], NULL, mythread, (void *) 1) == 0); + + _ftime(&currSysTime); + + abstime.tv_sec = currSysTime.time; + abstime.tv_nsec = NANOSEC_PER_MILLISEC * currSysTime.millitm; + + abstime.tv_sec += 5; + + while (! cvthing.shared > 0) + assert(pthread_cond_timedwait(&cvthing.notbusy, &cvthing.lock, &abstime) == 0); + + assert(cvthing.shared > 0); + + assert(pthread_mutex_unlock(&cvthing.lock) == 0); + + assert(pthread_mutex_destroy(&cvthing.lock) == 0); + + assert(cvthing.lock == NULL); + + assert(pthread_cond_destroy(&cvthing.notbusy) == 0); + + assert(cvthing.notbusy == NULL); + + return 0; +} |