regress/lib/libpthread/cond6/cond6.c

   1 /*      $NetBSD: cond6.c,v 1.1 2004/12/10 17:07:31 nathanw Exp $        */
   2
   3 #include <assert.h>
   4 #include <err.h>
   5 #include <errno.h>
   6 #include <pthread.h>
   7 #include <stdio.h>
   8 #include <stdlib.h>
   9 #include <sys/time.h>
  10
  11 void *threadfunc(void *arg);
  12
  13 pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
  14 pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
  15
  16 int main(void)
  17 {
  18         int ret;
  19         pthread_t new;
  20         struct timespec ts;
  21         struct timeval tv;
  22
  23         printf("condition variable test 6: bogus timedwaits\n");
  24
  25         ret = pthread_mutex_lock(&mutex);
  26         if (ret)
  27                 err(1, "pthread_mutex_lock(1)");
  28
  29         printf("unthreaded test (past)\n");
  30         gettimeofday(&tv, NULL);
  31         tv.tv_sec -= 2; /* Place the time in the past */
  32         TIMEVAL_TO_TIMESPEC(&tv, &ts);
  33
  34         ret = pthread_cond_timedwait(&cond, &mutex, &ts);
  35         if (ret != ETIMEDOUT) {
  36                 printf("FAIL: pthread_cond_timedwait() (unthreaded)"
  37                     " in the past returned %d\n", ret);
  38                 exit(1);
  39         }
  40
  41         printf("unthreaded test (zero time)\n");
  42         tv.tv_sec = 0;
  43         tv.tv_usec = 0;
  44         TIMEVAL_TO_TIMESPEC(&tv, &ts);
  45
  46         ret = pthread_cond_timedwait(&cond, &mutex, &ts);
  47         if (ret != ETIMEDOUT) {
  48                 printf("FAIL: pthread_cond_timedwait() (unthreaded)"
  49                     " with zero time returned %d\n", ret);
  50                 exit(1);
  51         }
  52
  53         ret = pthread_create(&new, NULL, threadfunc, NULL);
  54         if (ret != 0)
  55                 err(1, "pthread_create");
  56         ret = pthread_join(new, NULL);
  57         if (ret != 0)
  58                 err(1, "pthread_join");
  59
  60         printf("threaded test\n");
  61         gettimeofday(&tv, NULL);
  62         tv.tv_sec -= 2; /* Place the time in the past */
  63         TIMEVAL_TO_TIMESPEC(&tv, &ts);
  64
  65         ret = pthread_cond_timedwait(&cond, &mutex, &ts);
  66         if (ret != ETIMEDOUT) {
  67                 printf("FAIL: pthread_cond_timedwait() (threaded)"
  68                     " in the past returned %d\n", ret);
  69                 exit(1);
  70         }
  71
  72         printf("threaded test (zero time)\n");
  73         tv.tv_sec = 0;
  74         tv.tv_usec = 0;
  75         TIMEVAL_TO_TIMESPEC(&tv, &ts);
  76
  77         ret = pthread_cond_timedwait(&cond, &mutex, &ts);
  78         if (ret != ETIMEDOUT) {
  79                 printf("FAIL: pthread_cond_timedwait() (threaded)"
  80                     " with zero time returned %d\n", ret);
  81                 exit(1);
  82         }
  83
  84         pthread_mutex_unlock(&mutex);
  85
  86         return 0;
  87 }
  88
  89 void *
  90 threadfunc(void *arg)
  91 {
  92         return NULL;
  93 }