regress/lib/libpthread/detach1/detach1.c

   1 /*      $NetBSD$        */
   2
   3 #include <err.h>
   4 #include <errno.h>
   5 #include <pthread.h>
   6 #include <stdio.h>
   7 #include <stdlib.h>
   8 #include <unistd.h>
   9
  10 #define NITER   100000
  11
  12 void *func(void *);
  13 int main(void);
  14
  15 void *
  16 func(void *dummy)
  17 {
  18
  19         return NULL;
  20 }
  21
  22 int
  23 main()
  24 {
  25         int i;
  26
  27         for (i = 0; i < NITER; i++) {
  28                 pthread_t t;
  29                 int error;
  30
  31                 if (pthread_create(&t, NULL, func, NULL)) {
  32                         /*
  33                          * sleep and retry once for the case that
  34                          * the child threads are not finished yet.
  35                          */
  36                         printf("%d sleeping...\n", i);
  37                         sleep(10);
  38                         if (pthread_create(&t, NULL, func, NULL))
  39                                 err(1, "create");
  40                 }
  41
  42                 if (i & 1)
  43                         sched_yield(); /* give a chance thread to finish */
  44                 if (pthread_detach(t))
  45                         err(1, "detach");
  46
  47                 error = pthread_join(t, NULL);
  48                 if (error != ESRCH && error != EINVAL) {
  49                         printf("unexpected error %d\n", error);
  50                         exit(3);
  51                 }
  52         }
  53
  54         exit(0);
  55 }