sim/testsuite/sim/cris/c/ex1.c

   1 /* Compiler options:
   2 #notarget: cris*-*-elf
   3 #cc: additional_flags=-pthread
   4 #output: Starting process a\naaaaaaaaStarting process b\nababbbbbbbbb
   5
   6    The output will change depending on the exact syscall sequence per
   7    thread, so will change with glibc versions.  Prepare to modify; use
   8    the latest glibc.
   9
  10    This file is from glibc/linuxthreads, with the difference that the
  11    number is 10, not 10000.  */
  12
  13 /* Creates two threads, one printing 10000 "a"s, the other printing
  14    10000 "b"s.
  15    Illustrates: thread creation, thread joining. */
  16
  17 #include <stddef.h>
  18 #include <stdio.h>
  19 #include <unistd.h>
  20 #include "pthread.h"
  21
  22 static void *
  23 process (void *arg)
  24 {
  25   int i;
  26   fprintf (stderr, "Starting process %s\n", (char *) arg);
  27   for (i = 0; i < 10; i++)
  28     {
  29       write (1, (char *) arg, 1);
  30     }
  31   return NULL;
  32 }
  33
  34 int
  35 main (void)
  36 {
  37   int retcode;
  38   pthread_t th_a, th_b;
  39   void *retval;
  40
  41   retcode = pthread_create (&th_a, NULL, process, (void *) "a");
  42   if (retcode != 0)
  43     fprintf (stderr, "create a failed %d\n", retcode);
  44   retcode = pthread_create (&th_b, NULL, process, (void *) "b");
  45   if (retcode != 0)
  46     fprintf (stderr, "create b failed %d\n", retcode);
  47   retcode = pthread_join (th_a, &retval);
  48   if (retcode != 0)
  49     fprintf (stderr, "join a failed %d\n", retcode);
  50   retcode = pthread_join (th_b, &retval);
  51   if (retcode != 0)
  52     fprintf (stderr, "join b failed %d\n", retcode);
  53   return 0;
  54 }