regress/lib/libpthread/once1/once1.c

   1 /*      $NetBSD$        */
   2
   3 #include <assert.h>
   4 #include <err.h>
   5 #include <pthread.h>
   6 #include <stdio.h>
   7 #include <stdlib.h>
   8
   9 pthread_once_t once = PTHREAD_ONCE_INIT;
  10 static int x;
  11
  12 void ofunc(void);
  13
  14 int
  15 main(int argc, char *argv[])
  16 {
  17
  18         printf("1: Test 1 of pthread_once()\n");
  19
  20         pthread_once(&once, ofunc);
  21         pthread_once(&once, ofunc);
  22
  23         printf("1: X has value %d\n",x );
  24         assert(x == 1);
  25
  26         return 0;
  27 }
  28
  29 void
  30 ofunc(void)
  31 {
  32
  33         printf("Variable x has value %d\n", x);
  34         x++;
  35 }