1/* This testcase is part of GDB, the GNU debugger. 2 3 Copyright 2014-2020 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#ifdef USE_THREADS 19 20#include <unistd.h> 21#include <pthread.h> 22 23#define NUM 5 24 25pthread_barrier_t barrier; 26 27void * 28thread_function (void *arg) 29{ 30 volatile unsigned int counter = 1; 31 32 pthread_barrier_wait (&barrier); 33 34 while (counter > 0) 35 { 36 counter++; 37 usleep (1); 38 } 39 40 pthread_exit (NULL); 41} 42 43#endif /* USE_THREADS */ 44 45void 46setup (void) 47{ 48#ifdef USE_THREADS 49 pthread_t threads[NUM]; 50 int i; 51 52 pthread_barrier_init (&barrier, NULL, NUM + 1); 53 for (i = 0; i < NUM; i++) 54 pthread_create (&threads[i], NULL, thread_function, NULL); 55 pthread_barrier_wait (&barrier); 56#endif /* USE_THREADS */ 57} 58 59int 60main (void) 61{ 62 setup (); 63 return 0; /* set break here */ 64} 65