tools/regression/tls/ttls4/ttls4.c

   1 /*
   2  * This program tests if a new thread's initial tls data
   3  * is clean.
   4  *
   5  * David Xu <davidxu@freebsd.org>
   6  *
   7  * $FreeBSD$
   8  */
   9
  10 #include <stdio.h>
  11 #include <pthread.h>
  12 #include <unistd.h>
  13
  14 int __thread n;
  15
  16 void *f1(void *arg)
  17 {
  18         if (n != 0) {
  19                 printf("bug, n == %d \n", n);
  20                 exit(1);
  21         }
  22         n = 1;
  23         return (0);
  24 }
  25
  26 int main()
  27 {
  28         pthread_t td;
  29         int i;
  30
  31         for (i = 0; i < 1000; ++i) {
  32                 pthread_create(&td, NULL, f1, NULL);
  33                 pthread_join(td, NULL);
  34         }
  35         sleep(2);
  36         for (i = 0; i < 1000; ++i) {
  37                 pthread_create(&td, NULL, f1, NULL);
  38                 pthread_join(td, NULL);
  39         }
  40         return (0);
  41 }