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- /* This testcase is part of GDB, the GNU debugger.
- Copyright 2013-2022 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 <pthread.h>
- #include <signal.h>
- #include <unistd.h>
- static pthread_t thread_2;
- sig_atomic_t unlocked;
- /* The test has three threads, and it's always thread 2 that gets the
- signal, to avoid spurious passes in case the remote side happens to
- always pick the first or the last thread in the list as the
- current/status thread on reconnection. */
- static void *
- start2 (void *arg)
- {
- unsigned int count;
- pthread_kill (thread_2, SIGUSR1);
- for (count = 1; !unlocked && count != 0; count++)
- usleep (1);
- return NULL;
- }
- static void *
- start (void *arg)
- {
- pthread_t thread;
- pthread_create (&thread, NULL, start2, NULL);
- pthread_join (thread, NULL);
- return NULL;
- }
- void
- handle (int sig)
- {
- unlocked = 1;
- }
- int
- main ()
- {
- signal (SIGUSR1, handle);
- pthread_create (&thread_2, NULL, start, NULL);
- pthread_join (thread_2, NULL);
- return 0;
- }
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