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/**
* @file
* Timer implementations
*/
/*
* 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
*
*/
#ifndef LWIP_HDR_TIMEOUTS_H
#define LWIP_HDR_TIMEOUTS_H
#include "lwip/opt.h"
#include "lwip/err.h"
#if !NO_SYS
#include "lwip/sys.h"
#endif
#ifdef __cplusplus
extern "C"
{
#endif
#ifndef LWIP_DEBUG_TIMERNAMES
#ifdef LWIP_DEBUG
#define LWIP_DEBUG_TIMERNAMES SYS_DEBUG
#else /* LWIP_DEBUG */
#define LWIP_DEBUG_TIMERNAMES 0
#endif /* LWIP_DEBUG */
#endif
/** Function prototype for a stack-internal timer function that has to be
* called at a defined interval */
typedef void (*lwip_cyclic_timer_handler) (void);
/** This struct contains information about a stack-internal timer function
that has to be called at a defined interval */
struct lwip_cyclic_timer
{
u32_t interval_ms;
lwip_cyclic_timer_handler handler;
#if LWIP_DEBUG_TIMERNAMES
const char *handler_name;
#endif /* LWIP_DEBUG_TIMERNAMES */
};
/** This array contains all stack-internal cyclic timers. To get the number of
* timers, use LWIP_ARRAYSIZE() */
extern const struct lwip_cyclic_timer lwip_cyclic_timers[];
#if LWIP_TIMERS
/** 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) (void *arg);
struct sys_timeo
{
struct sys_timeo *next;
u32_t time;
sys_timeout_handler h;
void *arg;
#if LWIP_DEBUG_TIMERNAMES
const char *handler_name;
#endif /* LWIP_DEBUG_TIMERNAMES */
};
void sys_timeouts_init (void);
#if LWIP_DEBUG_TIMERNAMES
void sys_timeout_debug (u32_t msecs, sys_timeout_handler handler, void *arg,
const char *handler_name);
#define sys_timeout(msecs, handler, arg) sys_timeout_debug(msecs, handler, arg, #handler)
#else /* LWIP_DEBUG_TIMERNAMES */
void sys_timeout (u32_t msecs, sys_timeout_handler handler, void *arg);
#endif /* LWIP_DEBUG_TIMERNAMES */
void sys_untimeout (sys_timeout_handler handler, void *arg);
void sys_restart_timeouts (void);
#if NO_SYS
void sys_check_timeouts (void);
u32_t sys_timeouts_sleeptime (void);
#else /* NO_SYS */
void sys_timeouts_mbox_fetch (sys_mbox_t * mbox, void **msg);
#endif /* NO_SYS */
#else /* LWIP_TIMERS */
typedef void (*sys_timeout_handler) (void *arg);
void sys_timeouts_init (void);
void sys_timeout (u32_t msecs, sys_timeout_handler handler, void *arg);
void sys_untimeout (sys_timeout_handler handler, void *arg);
void sys_timeouts_mbox_fetch (sys_mbox_t * mbox, void **msg);
void cyclic_timer (void *arg);
void tcpip_tcp_timer (void *arg);
void tcp_timer_needed (void);
#endif
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_TIMEOUTS_H */
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