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68 lines
1.6 KiB
C
68 lines
1.6 KiB
C
/* This testcase is part of GDB, the GNU debugger.
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Copyright 2013-2018 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include <pthread.h>
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#include <signal.h>
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#include <unistd.h>
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static pthread_t thread_2;
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sig_atomic_t unlocked;
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/* The test has three threads, and it's always thread 2 that gets the
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signal, to avoid spurious passes in case the remote side happens to
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always pick the first or the last thread in the list as the
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current/status thread on reconnection. */
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static void *
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start2 (void *arg)
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{
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unsigned int count;
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pthread_kill (thread_2, SIGUSR1);
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for (count = 1; !unlocked && count != 0; count++)
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usleep (1);
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return NULL;
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}
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static void *
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start (void *arg)
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{
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pthread_t thread;
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pthread_create (&thread, NULL, start2, NULL);
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pthread_join (thread, NULL);
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return NULL;
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}
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void
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handle (int sig)
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{
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unlocked = 1;
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}
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int
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main ()
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{
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signal (SIGUSR1, handle);
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pthread_create (&thread_2, NULL, start, NULL);
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pthread_join (thread_2, NULL);
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return 0;
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}
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