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/* This testcase is part of GDB, the GNU debugger.
Copyright 2013-2017 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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