/* This testcase is part of GDB, the GNU debugger. Copyright 2021-2024 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 . */ #include #include #include #include #include /* Set this to non-zero from GDB to start a third worker thread. */ volatile int start_third_thread = 0; void * thread_worker_2 (void *arg) { int i; printf ("Hello from the third thread.\n"); fflush (stdout); for (i = 0; i < 300; ++i) sleep (1); return NULL; } void * thread_worker_1 (void *arg) { int i; pthread_t thr; void *val; if (start_third_thread) pthread_create (&thr, NULL, thread_worker_2, NULL); printf ("Hello from the first thread.\n"); fflush (stdout); for (i = 0; i < 300; ++i) sleep (1); if (start_third_thread) pthread_join (thr, &val); return NULL; } void * thread_idle_loop (void *arg) { int i; for (i = 0; i < 300; ++i) sleep (1); return NULL; } int main () { pthread_t thr, thr_idle; void *val; if (getenv ("MAKE_EXTRA_THREAD") != NULL) pthread_create (&thr_idle, NULL, thread_idle_loop, NULL); pthread_create (&thr, NULL, thread_worker_1, NULL); pthread_join (thr, &val); if (getenv ("MAKE_EXTRA_THREAD") != NULL) pthread_join (thr_idle, &val); return 0; }