gdb/testsuite/gdb.mi/interrupt-thread-group.c

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 2021 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 #include <unistd.h>
  19 #include <pthread.h>
  20 #include <assert.h>
  21
  22 #define NUM_THREADS 4
  23
  24 static pthread_barrier_t barrier;
  25
  26 static void *
  27 thread_function (void *arg)
  28 {
  29   pthread_barrier_wait (&barrier);
  30
  31   for (int i = 0; i < 30; i++)
  32     sleep (1);
  33
  34   return NULL;
  35 }
  36
  37 static void
  38 all_threads_started (void)
  39 {}
  40
  41 int
  42 main (void)
  43 {
  44   pthread_t threads[NUM_THREADS];
  45
  46   pthread_barrier_init (&barrier, NULL, NUM_THREADS + 1);
  47
  48   for (int i = 0; i < NUM_THREADS; i++)
  49     {
  50       int res = pthread_create (&threads[i], NULL, thread_function, NULL);
  51       assert (res == 0);
  52     }
  53
  54   pthread_barrier_wait (&barrier);
  55   all_threads_started ();
  56
  57   for (int i = 0; i < NUM_THREADS; i++)
  58     {
  59       int res = pthread_join (threads[i], NULL);
  60       assert (res == 0);
  61     }
  62
  63   return 0;
  64 }
  65