gdb/testsuite/gdb.python/py-evthreads.c

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 2010-2012 Free Software Foundation, Inc.
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see  <http://www.gnu.org/licenses/>.
  17 */
  18
  19 #include <stdio.h>
  20 #include <pthread.h>
  21 #include <unistd.h>
  22 #include <signal.h>
  23
  24 pthread_t thread2_id;
  25 pthread_t thread3_id;
  26
  27 void* thread3 (void* d)
  28 {
  29   raise (SIGUSR1);
  30
  31   return NULL;
  32 }
  33
  34 void* thread2 (void* d)
  35 {
  36   /* Do not quit thread3 asynchronously wrt thread2 stop - wait first on
  37      thread3_id to stop.  It would complicate testcase receiption of the
  38      events.  */
  39
  40   pthread_create (&thread3_id, NULL, thread3, NULL); pthread_join (thread3_id, NULL);
  41
  42   return NULL;
  43 }
  44
  45 int main (void)
  46 {
  47   /* Use single line to not to race whether `thread2' breakpoint or `next' over
  48      pthread_create will stop first.  */
  49
  50   pthread_create (&thread2_id, NULL, thread2, NULL); pthread_join (thread2_id, NULL);
  51
  52   return 12;
  53 }