/*
 *
 *    Copyright (c) 2002, Smart Link Ltd.
 *    All rights reserved.
 *
 *    Redistribution and use in source and binary forms, with or without
 *    modification, are permitted provided that the following conditions
 *    are met:
 *
 *        1. Redistributions of source code must retain the above copyright
 *           notice, this list of conditions and the following disclaimer.
 *        2. Redistributions in binary form must reproduce the above
 *           copyright notice, this list of conditions and the following
 *           disclaimer in the documentation and/or other materials provided
 *           with the distribution.
 *        3. Neither the name of the Smart Link Ltd. nor the names of its
 *           contributors may be used to endorse or promote products derived
 *           from this software without specific prior written permission.
 *
 *    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 *    "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 *    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 *    A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 *    OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 *    SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 *    LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 *    DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 *    THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 *    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 *    OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */

/*
 *
 *    modem_timer.h  --  definitions for simple timer.
 *
 *    Author: Sasha K (sashak@smlink.com)
 *
 *
 */

#ifndef __MODEM_TIMER_H__
#define __MODEM_TIMER_H__


#define MODEM_HZ 100

struct timer {
	struct timer *next;
	unsigned added;
	unsigned expires;
	void (*func)(void *);
	void *data;
};


#define time_before(t1,t2) ((long)((t2)-(t1)) > 0)
#define time_after(t1,t2)  (!time_before(t1,t2))

unsigned long get_time(void);

extern void timer_init(struct timer *t);
extern int timer_add(struct timer *t);
extern int timer_del(struct timer *t);

extern int modem_timer_init(void);

#endif /* __MODEM_TIMER_H__ */