gdb/testsuite/gdb.threads/thread_check.c

   1 /* Copyright (C) 2004, 2007, 2008, 2009, 2010, 2011
   2    Free Software Foundation, Inc.
   3
   4    This program is free software; you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation; either version 3 of the License, or
   7    (at your option) any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16
  17    This file was written by Steve Munroe (sjmunroe@us.ibm.com). */
  18
  19 /* Test break points and single step on thread functions.  */
  20
  21 #include <string.h>
  22 #include <unistd.h>
  23 #include <pthread.h>
  24 #include <stdlib.h>
  25 #include <stdio.h>
  26 #include <errno.h>
  27
  28 #define N       2
  29
  30 static void *
  31 tf (void *arg)
  32 {
  33     int n = (int) (long int) arg;
  34     char number[160];
  35     int unslept = 10;
  36
  37     sprintf(number, "tf(%ld): begin", (long)arg);
  38     puts (number);
  39
  40     while (unslept > 0)
  41         unslept = sleep(unslept);
  42
  43     sprintf(number, "tf(%ld): end", (long)arg);
  44     puts (number);
  45     return NULL;
  46 }
  47
  48 int main (int argc, char *argv[])
  49 {
  50     int n;
  51     int unslept = 2;
  52     pthread_t th[N];
  53
  54     for (n = 0; n < N; ++n)
  55     if (pthread_create (&th[n], NULL, tf, (void *) (long int) n) != 0)
  56     {
  57         while (unslept > 0)
  58            unslept = sleep(2);
  59         puts ("create failed");
  60         exit (1);
  61     }
  62
  63     puts("after create");
  64
  65     for (n = 0; n < N; ++n)
  66     if (pthread_join (th[n], NULL) != 0)
  67     {
  68         puts ("join failed");
  69         exit (1);
  70     }
  71
  72     puts("after join");
  73     return 0;
  74 }