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/*
* Copyright (c) 2002-2009 BalaBit IT Ltd, Budapest, Hungary
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*
* Note that this permission is granted for only version 2 of the GPL.
*
* As an additional exemption you are allowed to compile & link against the
* OpenSSL libraries as published by the OpenSSL project. See the file
* COPYING for details.
*
* 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, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "alarms.h"
#include "messages.h"
#include <unistd.h>
#include <signal.h>
#include <string.h>
static gboolean sig_alarm_received = FALSE;
static gboolean alarm_pending = FALSE;
static void
sig_alarm_handler(int signo)
{
sig_alarm_received = TRUE;
}
void
alarm_set(int timeout)
{
if (G_UNLIKELY(alarm_pending))
{
msg_error("Internal error, alarm_set() called while an alarm is still active", NULL);
return;
}
alarm(timeout);
alarm_pending = TRUE;
}
void
alarm_cancel()
{
alarm(0);
sig_alarm_received = FALSE;
alarm_pending = FALSE;
}
gboolean
alarm_has_fired()
{
gboolean res = sig_alarm_received;
return res;
}
void
alarm_init()
{
struct sigaction sa;
memset(&sa, 0, sizeof(sa));
sa.sa_handler = sig_alarm_handler;
sigaction(SIGALRM, &sa, NULL);
}
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