| /* This testcase is part of GDB, the GNU debugger. |
| |
| Copyright 2021-2022 Free Software Foundation, Inc. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| |
| #include <stdlib.h> |
| #include <pthread.h> |
| #include <unistd.h> |
| |
| volatile int worker_blocked = 1; |
| volatile int main_blocked = 1; |
| |
| void |
| unlock_worker (void) |
| { |
| worker_blocked = 0; |
| } |
| |
| void |
| unlock_main (void) |
| { |
| main_blocked = 0; |
| } |
| |
| void |
| breakpt (void) |
| { |
| /* Nothing. */ |
| } |
| |
| static void * |
| worker (void *data) |
| { |
| unlock_main (); |
| |
| while (worker_blocked) |
| ; |
| |
| breakpt (); |
| |
| return NULL; |
| } |
| |
| int |
| main (void) |
| { |
| pthread_t thr; |
| void *retval; |
| |
| /* Ensure the test doesn't run forever. */ |
| alarm (99); |
| |
| if (pthread_create (&thr, NULL, worker, NULL) != 0) |
| abort (); |
| |
| while (main_blocked) |
| ; |
| |
| unlock_worker (); |
| |
| if (pthread_join (thr, &retval) != 0) |
| abort (); |
| |
| return 0; |
| } |