timer.h

/*   
 *   (c) Copyright 2008 Philipp Skadorov (philipp_s@users.sourceforge.net)
 *
 *   This file is part of FREESECS.
 *
 *   FREESECS 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.
 *
 *   FREESECS 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 FREESECS, see COPYING.
 *   If not, see <http://www.gnu.org/licenses/>.
 */
#ifndef _TIMER_H
#define _TIMER_H

#include <signal.h>
#include <time.h>
#include "callback.h"

namespace freesecs
{
    class async_reception_t;

    class ms_timer_t
    {
    public:
        ms_timer_t();
        ~ms_timer_t();
        int start(unsigned long timeout_ms);
        int stop();

        template<class T>
        void add_handler(T *p_class, int (T::*p_func)())
        {
            _cb = callback_t(p_class, p_func);
        }

    private:
        int _timeout_fd[2];
        async_reception_t *_ar;
        int ar_handler(const size_t&);


    private:
        static void interrupt(int signo, siginfo_t *info, void *context);

        timer_t _id;
        callback_t _cb;

        static int _subscr_count;
        static struct sigaction _old_act;
    };
}//namespace
#endif //_TIMER_H

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