/* * File: condvar2_1.c * * Test Synopsis: * - Test timeout of multiple waits on a CV with no signal/broadcast. * * Test Method (Validation or Falsification): * - Validation * * Requirements Tested: * - * * Features Tested: * - * * Cases Tested: * - * * Description: * - Because the CV is never signaled, we expect the waits to time out. * * Environment: * - * * Input: * - None. * * Output: * - File name, Line number, and failed expression on failure. * - No output on success. * * Assumptions: * - * * Pass Criteria: * - pthread_cond_timedwait returns ETIMEDOUT. * - Process returns zero exit status. * * Fail Criteria: * - pthread_cond_timedwait does not return ETIMEDOUT. * - Process returns non-zero exit status. */ #include "test.h" #include <sys/timeb.h> static pthread_cond_t cv; static pthread_mutex_t mutex; static struct timespec abstime = { 0, 0 }; enum { NUMTHREADS = 60 }; void * mythread(void * arg) { assert(pthread_mutex_lock(&mutex) == 0); assert(pthread_cond_timedwait(&cv, &mutex, &abstime) == ETIMEDOUT); assert(pthread_mutex_unlock(&mutex) == 0); return arg; } #include "../implement.h" int main() { int i; pthread_t t[NUMTHREADS + 1]; int result = 0; struct _timeb currSysTime; const DWORD NANOSEC_PER_MILLISEC = 1000000; assert(pthread_cond_init(&cv, NULL) == 0); assert(pthread_mutex_init(&mutex, NULL) == 0); /* 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_mutex_lock(&mutex) == 0); for (i = 1; i <= NUMTHREADS; i++) { assert(pthread_create(&t[i], NULL, mythread, (void *) i) == 0); } assert(pthread_mutex_unlock(&mutex) == 0); for (i = 1; i <= NUMTHREADS; i++) { assert(pthread_join(t[i], (void **) &result) == 0); assert(result == i); } { int result = pthread_cond_destroy(&cv); if (result != 0) { fprintf(stderr, "Result = %s\n", error_string[result]); fprintf(stderr, "\tWaitersBlocked = %ld\n", cv->nWaitersBlocked); fprintf(stderr, "\tWaitersUnblocked = %ld\n", cv->nWaitersUnblocked); fprintf(stderr, "\tWaitersGone = %ld\n", cv->nWaitersGone); fprintf(stderr, "\tWaitersToUnblock = %ld\n", cv->nWaitersToUnblock); fflush(stderr); } assert(result == 0); } return 0; }