133 lines
3.6 KiB
C
133 lines
3.6 KiB
C
/*******************************************************************************
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Eurecom OpenAirInterface
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Copyright(c) 1999 - 2013 Eurecom
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This program is free software; you can redistribute it and/or modify it
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under the terms and conditions of the GNU General Public License,
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version 2, as published by the Free Software Foundation.
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This program is distributed in the hope it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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more details.
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You should have received a copy of the GNU General Public License along with
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this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
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The full GNU General Public License is included in this distribution in
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the file called "COPYING".
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Contact Information
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Openair Admin: openair_admin@eurecom.fr
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Openair Tech : openair_tech@eurecom.fr
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Forums : http://forums.eurecom.fr/openairinterface
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Address : EURECOM, Campus SophiaTech, 450 Route des Chappes
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06410 Biot FRANCE
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*******************************************************************************/
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#if HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <pthread.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <signal.h>
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#include <time.h>
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#include <errno.h>
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#include "intertask_interface.h"
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#include "assertions.h"
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#include "timer.h"
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#include "backtrace.h"
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#include "signals.h"
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sigset_t set;
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int signal_init(void)
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{
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/* We set the signal mask to avoid threads other than the main thread
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* to receive the timer signal. Note that threads created will inherit this
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* configuration.
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*/
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sigemptyset(&set);
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sigaddset (&set, SIGTIMER);
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sigaddset (&set, SIGABRT);
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sigaddset (&set, SIGSEGV);
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sigaddset (&set, SIGINT);
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if (sigprocmask(SIG_BLOCK, &set, NULL) < 0) {
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perror ("sigprocmask");
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return -1;
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}
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return 0;
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}
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extern int timer_handle_signal(siginfo_t *info);
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int signal_handle(void)
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{
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int ret;
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siginfo_t info;
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sigemptyset(&set);
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sigaddset (&set, SIGTIMER);
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sigaddset (&set, SIGABRT);
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sigaddset (&set, SIGSEGV);
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sigaddset (&set, SIGINT);
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if (sigprocmask(SIG_BLOCK, &set, NULL) < 0) {
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perror ("sigprocmask");
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return -1;
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}
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/* Block till a signal is received.
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* NOTE: The signals defined by set are required to be blocked at the time
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* of the call to sigwait() otherwise sigwait() is not successful.
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*/
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if ((ret = sigwaitinfo(&set, &info)) == -1) {
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perror ("sigwait");
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return ret;
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}
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// printf("Received signal %d\n", info.si_signo);
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/* Real-time signals are non constant and are therefore not suitable for
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* use in switch.
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*/
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if (info.si_signo == SIGTIMER) {
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timer_handle_signal(&info);
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} else {
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/* Dispatch the signal to sub-handlers */
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switch(info.si_signo) {
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case SIGSEGV: /* Fall through */
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case SIGABRT:
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printf("Received SIGABORT\n");
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backtrace_handle_signal(&info);
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break;
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case SIGQUIT:
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case SIGINT:
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printf("Received SIGINT\n");
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intertask_interface_send_quit_signal();
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printf("All tasks terminated -> exiting '"PACKAGE_NAME"'\n");
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exit(0);
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break;
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default:
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printf("Received unknown signal %d\n", info.si_signo);
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break;
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}
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}
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return 0;
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}
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