/*****************************************************************************
*    Open LiteSpeed is an open source HTTP server.                           *
*    Copyright (C) 2013 - 2022  LiteSpeed Technologies, 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 <util/signalutil.h>
SignalUtil::SignalUtil()
{
}
SignalUtil::~SignalUtil()
{
}
sighandler_t SignalUtil::signal(int sig, sighandler_t f)
{
    struct sigaction act, oact;

    act.sa_handler = f;
    sigemptyset(&act.sa_mask);
    act.sa_flags = 0;
    if (sig == SIGALRM)
    {
#ifdef SA_INTERRUPT
        act.sa_flags |= SA_INTERRUPT; /* SunOS */
#endif
    }
    else
    {
#ifdef SA_RESTART
        act.sa_flags |= SA_RESTART;
#endif
    }
    if (sigaction(sig, &act, &oact) < 0)
        return (SIG_ERR);
    return (oact.sa_handler);
}
