1/* Copyright 2007-2020 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#include <pthread.h> 17#include <assert.h> 18#include <unistd.h> 19 20static volatile pthread_t main_thread; 21pthread_barrier_t barrier; 22 23static void * 24thread_a (void *arg) 25{ 26 int i; 27 28 return 0; /* break-here */ 29} 30 31static void * 32thread_b (void *arg) 33{ 34 int i; 35 36 pthread_barrier_wait (&barrier); 37 38 i = pthread_join (main_thread, NULL); 39 assert (i == 0); 40 41 return arg; 42} 43 44int 45main (void) 46{ 47 pthread_t thread; 48 int i; 49 50 /* First test resuming only `thread_a', which exits. */ 51 i = pthread_create (&thread, NULL, thread_a, NULL); 52 assert (i == 0); 53 pthread_join (thread, NULL); 54 55 /* Then test resuming only the leader, which also exits. */ 56 main_thread = pthread_self (); 57 58 pthread_barrier_init (&barrier, NULL, 2); 59 60 i = pthread_create (&thread, NULL, thread_b, NULL); 61 assert (i == 0); 62 63 pthread_barrier_wait (&barrier); 64 65 pthread_exit (NULL); /* break-here-2 */ 66 /* NOTREACHED */ 67 return 0; 68} 69