mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-29 05:51:10 +00:00
86 lines
2.0 KiB
C
86 lines
2.0 KiB
C
/* Copyright (C) 2003-2023 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <pthread.h>
|
|
#include <signal.h>
|
|
#include <unistd.h>
|
|
#include <support/xthread.h>
|
|
#include <support/xsignal.h>
|
|
#include <support/xthread.h>
|
|
|
|
|
|
static int the_sig;
|
|
|
|
|
|
static void
|
|
eintr_handler (int sig)
|
|
{
|
|
if (sig != the_sig)
|
|
{
|
|
write (STDOUT_FILENO, "eintr_handler: signal number wrong\n", 35);
|
|
_exit (1);
|
|
}
|
|
write (STDOUT_FILENO, ".", 1);
|
|
}
|
|
|
|
|
|
static void *
|
|
eintr_source (void *arg)
|
|
{
|
|
struct timespec ts = { .tv_sec = 0, .tv_nsec = 500000 };
|
|
|
|
if (arg == NULL)
|
|
{
|
|
sigset_t ss;
|
|
sigemptyset (&ss);
|
|
sigaddset (&ss, the_sig);
|
|
xpthread_sigmask (SIG_BLOCK, &ss, NULL);
|
|
}
|
|
|
|
while (1)
|
|
{
|
|
if (arg != NULL)
|
|
pthread_kill (*(pthread_t *) arg, the_sig);
|
|
else
|
|
kill (getpid (), the_sig);
|
|
|
|
nanosleep (&ts, NULL);
|
|
}
|
|
|
|
/* NOTREACHED */
|
|
return NULL;
|
|
}
|
|
|
|
|
|
static void
|
|
setup_eintr (int sig, pthread_t *thp)
|
|
{
|
|
struct sigaction sa;
|
|
sigemptyset (&sa.sa_mask);
|
|
sa.sa_flags = 0;
|
|
sa.sa_handler = eintr_handler;
|
|
if (sigaction (sig, &sa, NULL) != 0)
|
|
{
|
|
puts ("setup_eintr: sigaction failed");
|
|
exit (1);
|
|
}
|
|
the_sig = sig;
|
|
|
|
/* Create the thread which will fire off the signals. */
|
|
xpthread_create (NULL, eintr_source, thp);
|
|
}
|