[164] | 1 | /*
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| 2 | * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without modification,
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| 6 | * are permitted provided that the following conditions are met:
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| 7 | *
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| 8 | * 1. Redistributions of source code must retain the above copyright notice,
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| 9 | * this list of conditions and the following disclaimer.
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| 10 | * 2. Redistributions in binary form must reproduce the above copyright notice,
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| 11 | * this list of conditions and the following disclaimer in the documentation
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| 12 | * and/or other materials provided with the distribution.
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| 13 | * 3. The name of the author may not be used to endorse or promote products
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| 14 | * derived from this software without specific prior written permission.
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| 15 | *
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| 16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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| 17 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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| 18 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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| 19 | * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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| 20 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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| 21 | * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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| 22 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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| 23 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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| 24 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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| 25 | * OF SUCH DAMAGE.
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| 26 | *
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| 27 | * This file is part of the lwIP TCP/IP stack.
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| 28 | *
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| 29 | * Author: Adam Dunkels <adam@sics.se>
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| 30 | * Simon Goldschmidt
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| 31 | *
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| 32 | */
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| 33 | #ifndef __LWIP_TIMERS_H__
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| 34 | #define __LWIP_TIMERS_H__
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| 35 |
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| 36 | #include "lwip/opt.h"
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| 37 |
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| 38 | /* Timers are not supported when NO_SYS==1 and NO_SYS_NO_TIMERS==1 */
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| 39 | #define LWIP_TIMERS (!NO_SYS || (NO_SYS && !NO_SYS_NO_TIMERS))
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| 40 |
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| 41 | #if LWIP_TIMERS
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| 42 |
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| 43 | #include "lwip/err.h"
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| 44 | #if !NO_SYS
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| 45 | #include "lwip/sys.h"
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| 46 | #endif
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| 47 |
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| 48 | #ifdef __cplusplus
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| 49 | extern "C" {
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| 50 | #endif
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| 51 |
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| 52 | #ifndef LWIP_DEBUG_TIMERNAMES
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| 53 | #ifdef LWIP_DEBUG
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| 54 | #define LWIP_DEBUG_TIMERNAMES SYS_DEBUG
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| 55 | #else /* LWIP_DEBUG */
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| 56 | #define LWIP_DEBUG_TIMERNAMES 0
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| 57 | #endif /* LWIP_DEBUG*/
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| 58 | #endif
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| 59 |
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| 60 | /** Function prototype for a timeout callback function. Register such a function
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| 61 | * using sys_timeout().
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| 62 | *
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| 63 | * @param arg Additional argument to pass to the function - set up by sys_timeout()
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| 64 | */
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| 65 | typedef void (* sys_timeout_handler)(void *arg);
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| 66 |
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| 67 | struct sys_timeo {
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| 68 | struct sys_timeo *next;
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| 69 | u32_t time;
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| 70 | sys_timeout_handler h;
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| 71 | void *arg;
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| 72 | #if LWIP_DEBUG_TIMERNAMES
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| 73 | const char* handler_name;
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| 74 | #endif /* LWIP_DEBUG_TIMERNAMES */
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| 75 | };
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| 76 |
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| 77 | void sys_timeouts_init(void);
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| 78 |
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| 79 | #if LWIP_DEBUG_TIMERNAMES
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| 80 | void sys_timeout_debug(u32_t msecs, sys_timeout_handler handler, void *arg, const char* handler_name);
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| 81 | #define sys_timeout(msecs, handler, arg) sys_timeout_debug(msecs, handler, arg, #handler)
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| 82 | #else /* LWIP_DEBUG_TIMERNAMES */
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| 83 | void sys_timeout(u32_t msecs, sys_timeout_handler handler, void *arg);
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| 84 | #endif /* LWIP_DEBUG_TIMERNAMES */
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| 85 |
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| 86 | void sys_untimeout(sys_timeout_handler handler, void *arg);
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| 87 | #if NO_SYS
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| 88 | void sys_check_timeouts(void);
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| 89 | void sys_restart_timeouts(void);
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| 90 | #else /* NO_SYS */
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| 91 | void sys_timeouts_mbox_fetch(sys_mbox_t *mbox, void **msg);
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| 92 | #endif /* NO_SYS */
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| 93 |
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| 94 |
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| 95 | #ifdef __cplusplus
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| 96 | }
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| 97 | #endif
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| 98 |
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| 99 | #endif /* LWIP_TIMERS */
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| 100 | #endif /* __LWIP_TIMERS_H__ */
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