1 /* This testcase is part of GDB, the GNU debugger. 2 3 Copyright (C) 2014-2017 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 /* This is the multi-threaded driver for the real test. */ 19 20 #include <stdlib.h> 21 #include <pthread.h> 22 #include <stdio.h> 23 #include <unistd.h> 24 25 extern int test (void); 26 27 #define NTHREADS 5 28 pthread_barrier_t barrier; 29 30 void * 31 thread_func (void *arg) 32 { 33 pthread_barrier_wait (&barrier); 34 35 while (1) 36 sleep (1); 37 } 38 39 void 40 create_thread (void) 41 { 42 pthread_t tid; 43 44 if (pthread_create (&tid, NULL, thread_func, NULL)) 45 { 46 perror ("pthread_create"); 47 exit (1); 48 } 49 } 50 51 int 52 main (void) 53 { 54 int i; 55 56 pthread_barrier_init (&barrier, NULL, NTHREADS + 1); 57 58 for (i = 0; i < NTHREADS; i++) 59 create_thread (); 60 pthread_barrier_wait (&barrier); 61 62 return test (); 63 } 64