kern/include/net/timers.h

/*
 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
 * 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. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission. 
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
 *
 * This file is part of the lwIP TCP/IP stack.
 * 
 * Author: Adam Dunkels <adam@sics.se>
 *         Simon Goldschmidt
 * Modified to fit Akaros by David Zhu<yuzhu@cs.berkeley.edu>
 *
 */
#ifndef __NET_TIMERS_H__
#define __NET_TIMERS_H__

#ifdef __cplusplus
extern "C" {
#endif

#ifndef LWIP_DEBUG_TIMERNAMES
#define LWIP_DEBUG_TIMERNAMES 1
#else
#define LWIP_DEBUG_TIMERNAMES 0
#endif

#include <alarm.h>

/** Function prototype for a timeout callback function. Register such a function
 * using sys_timeout().
 *
 * @param arg Additional argument to pass to the function - set up by sys_timeout()
 */
typedef void (* sys_timeout_handler)(struct alarm_waiter *arg);
struct timer_req {
	sys_timeout_handler func;
	void *arg;
};
#if 0
struct sys_timeo {
  struct sys_timeo *next;
  uint32_t time;
  sys_timeout_handler h;
  void *arg;
#if LWIP_DEBUG_TIMERNAMES
  const char* handler_name;
#endif /* LWIP_DEBUG_TIMERNAMES */
};
#endif
void sys_timeouts_init(void);

struct alarm_waiter* sys_timeout(uint32_t msecs, sys_timeout_handler handler, struct alarm_waiter* waiter);

void sys_untimeout(sys_timeout_handler handler, void *arg);
void sys_check_timeouts(void);
void sys_restart_timeouts(void);


#ifdef __cplusplus
}
#endif

#endif /* __NET_TIMERS_H__  */