3 * Timer implementations
7 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
10 * Redistribution and use in source and binary forms, with or without modification,
11 * are permitted provided that the following conditions are met:
13 * 1. Redistributions of source code must retain the above copyright notice,
14 * this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright notice,
16 * this list of conditions and the following disclaimer in the documentation
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19 * derived from this software without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
22 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
23 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
24 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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32 * This file is part of the lwIP TCP/IP stack.
34 * Author: Adam Dunkels <adam@sics.se>
38 #ifndef LWIP_HDR_TIMEOUTS_H
39 #define LWIP_HDR_TIMEOUTS_H
51 #ifndef LWIP_DEBUG_TIMERNAMES
53 #define LWIP_DEBUG_TIMERNAMES SYS_DEBUG
54 #else /* LWIP_DEBUG */
55 #define LWIP_DEBUG_TIMERNAMES 0
56 #endif /* LWIP_DEBUG*/
59 /** Function prototype for a stack-internal timer function that has to be
60 * called at a defined interval */
61 typedef void (* lwip_cyclic_timer_handler)(void);
63 /** This struct contains information about a stack-internal timer function
64 that has to be called at a defined interval */
65 struct lwip_cyclic_timer {
67 lwip_cyclic_timer_handler handler;
68 #if LWIP_DEBUG_TIMERNAMES
69 const char* handler_name;
70 #endif /* LWIP_DEBUG_TIMERNAMES */
73 /** This array contains all stack-internal cyclic timers. To get the number of
74 * timers, use LWIP_ARRAYSIZE() */
75 extern const struct lwip_cyclic_timer lwip_cyclic_timers[];
79 /** Function prototype for a timeout callback function. Register such a function
80 * using sys_timeout().
82 * @param arg Additional argument to pass to the function - set up by sys_timeout()
84 typedef void (* sys_timeout_handler)(void *arg);
87 struct sys_timeo *next;
89 sys_timeout_handler h;
91 #if LWIP_DEBUG_TIMERNAMES
92 const char* handler_name;
93 #endif /* LWIP_DEBUG_TIMERNAMES */
96 void sys_timeouts_init(void);
98 #if LWIP_DEBUG_TIMERNAMES
99 void sys_timeout_debug(u32_t msecs, sys_timeout_handler handler, void *arg, const char* handler_name);
100 #define sys_timeout(msecs, handler, arg) sys_timeout_debug(msecs, handler, arg, #handler)
101 #else /* LWIP_DEBUG_TIMERNAMES */
102 void sys_timeout(u32_t msecs, sys_timeout_handler handler, void *arg);
103 #endif /* LWIP_DEBUG_TIMERNAMES */
105 void sys_untimeout(sys_timeout_handler handler, void *arg);
106 void sys_restart_timeouts(void);
108 void sys_check_timeouts(void);
109 u32_t sys_timeouts_sleeptime(void);
111 void sys_timeouts_mbox_fetch(sys_mbox_t *mbox, void **msg);
115 #endif /* LWIP_TIMERS */
121 #endif /* LWIP_HDR_TIMEOUTS_H */