sim/testsuite/cris/c/thread4.c

   1 /* Compiler options:
   2 #progos: linux
   3 #cc: additional_flags=-pthread
   4 #output: abb ok\n
   5
   6    Testing a pthread corner case.  Output will change with glibc
   7    releases.  */
   8
   9 #include <stddef.h>
  10 #include <stdio.h>
  11 #include <unistd.h>
  12 #include <pthread.h>
  13 #include <stdlib.h>
  14
  15 static void *
  16 process (void *arg)
  17 {
  18   int i;
  19
  20   if (pthread_setcancelstate (PTHREAD_CANCEL_ENABLE, NULL) != 0)
  21     abort ();
  22   write (2, "a", 1);
  23   for (i = 0; i < 10; i++)
  24     {
  25       sched_yield ();
  26       pthread_testcancel ();
  27       write (2, "b", 1);
  28     }
  29   return NULL;
  30 }
  31
  32 int
  33 main (void)
  34 {
  35   int retcode;
  36   pthread_t th_a;
  37   void *retval;
  38
  39   retcode = pthread_create (&th_a, NULL, process, NULL);
  40   sched_yield ();
  41   sched_yield ();
  42   sched_yield ();
  43   sched_yield ();
  44   retcode = pthread_cancel (th_a);
  45   retcode = pthread_join (th_a, &retval);
  46   if (retcode != 0)
  47     abort ();
  48   fprintf (stderr, " ok\n");
  49   return 0;
  50 }