gdb/testsuite/gdb.threads/thread_check.c

   1 /* Copyright (C) 2004-2024 Free Software Foundation, Inc.
   2
   3    This program is free software; you can redistribute it and/or modify
   4    it under the terms of the GNU General Public License as published by
   5    the Free Software Foundation; either version 3 of the License, or
   6    (at your option) any later version.
   7
   8    This program is distributed in the hope that it will be useful,
   9    but WITHOUT ANY WARRANTY; without even the implied warranty of
  10    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11    GNU General Public License for more details.
  12
  13    You should have received a copy of the GNU General Public License
  14    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15
  16    This file was written by Steve Munroe (sjmunroe@us.ibm.com). */
  17
  18 /* Test break points and single step on thread functions.  */
  19
  20 #include <string.h>
  21 #include <unistd.h>
  22 #include <pthread.h>
  23 #include <stdlib.h>
  24 #include <stdio.h>
  25 #include <errno.h>
  26
  27 #define N       2
  28
  29 static void *
  30 tf (void *arg)
  31 {
  32     int n = (int) (long int) arg;
  33     char number[160];
  34     int unslept = 10;
  35
  36     sprintf(number, "tf(%ld): begin", (long)arg);
  37     puts (number);
  38
  39     while (unslept > 0)
  40         unslept = sleep(unslept);
  41
  42     sprintf(number, "tf(%ld): end", (long)arg);
  43     puts (number);
  44     return NULL;
  45 }
  46
  47 int main (int argc, char *argv[])
  48 {
  49     int n;
  50     int unslept = 2;
  51     pthread_t th[N];
  52
  53     for (n = 0; n < N; ++n)
  54     if (pthread_create (&th[n], NULL, tf, (void *) (long int) n) != 0)
  55     {
  56         while (unslept > 0)
  57            unslept = sleep(2);
  58         puts ("create failed");
  59         exit (1);
  60     }
  61
  62     puts("after create");
  63
  64     for (n = 0; n < N; ++n)
  65     if (pthread_join (th[n], NULL) != 0)
  66     {
  67         puts ("join failed");
  68         exit (1);
  69     }
  70
  71     puts("after join");
  72     return 0;
  73 }