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/*
* rharchive
*
* The Radio Helsinki Archive Daemon
*
*
* Copyright (C) 2009-2015 Christian Pointner <equinox@helsinki.at>
*
* This file is part of rharchive.
*
* rharchive 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
* any later version.
*
* rharchive 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 rharchive. If not, see <http://www.gnu.org/licenses/>.
*
* In addition, as a special exception, the copyright holders hereby
* grant permission for non-GPL-compatible GStreamer plugins to be used
* and distributed together with GStreamer and rharchive.
* This permission goes above and beyond the permissions granted by the
* GPL license rharchive is covered by.
*/
#include "datatypes.h"
#include "log.h"
#include "sig_handler.h"
#include <glib.h>
#include <errno.h>
#include "rhmain.h"
static GThread *signal_thread;
void signal_init()
{
sigset_t signal_set;
sigemptyset(&signal_set);
sigaddset(&signal_set, SIGINT);
sigaddset(&signal_set, SIGQUIT);
sigaddset(&signal_set, SIGHUP);
sigaddset(&signal_set, SIGTERM);
sigaddset(&signal_set, SIGUSR1);
sigaddset(&signal_set, SIGUSR2);
pthread_sigmask(SIG_BLOCK, &signal_set, NULL);
}
static gpointer signal_thread_func(gpointer data)
{
RHMainLoop *loop = (RHMainLoop *)data;
struct timespec timeout;
sigset_t signal_set;
int sig_num;
for(;;) {
sigemptyset(&signal_set);
sigaddset(&signal_set, SIGINT);
sigaddset(&signal_set, SIGQUIT);
sigaddset(&signal_set, SIGHUP);
sigaddset(&signal_set, SIGTERM);
sigaddset(&signal_set, SIGUSR1);
sigaddset(&signal_set, SIGUSR2);
timeout.tv_sec = 1;
timeout.tv_nsec = 0;
sig_num = sigtimedwait(&signal_set, NULL, &timeout);
if(sig_num == -1) {
if(errno != EINTR && errno != EAGAIN) {
log_printf(ERROR, "sigwait failed with error: %d, signal handling will be disabled", errno);
break;
}
} else {
switch(sig_num) {
case SIGTERM:
case SIGINT:
case SIGQUIT: {
log_printf(NOTICE, "signal %d received, exiting", sig_num);
rhmain_loop_quit(loop, sig_num);
break;
}
default: {
log_printf(NOTICE, "signal %d received, ignoring", sig_num);
break;
}
}
}
}
return NULL;
}
int signal_start(RHMainLoop *loop)
{
g_assert(!signal_thread);
signal_thread = g_thread_new("sig_handler", signal_thread_func, loop);
if(!signal_thread)
return -1;
return 0;
}
void signal_stop()
{
sigset_t signal_set;
sigemptyset(&signal_set);
sigaddset(&signal_set, SIGINT);
sigaddset(&signal_set, SIGQUIT);
sigaddset(&signal_set, SIGHUP);
sigaddset(&signal_set, SIGTERM);
sigaddset(&signal_set, SIGUSR1);
sigaddset(&signal_set, SIGUSR2);
pthread_sigmask(SIG_UNBLOCK, &signal_set, NULL);
}
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