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timers.h
00001 /* 00002 * Copyright (c) 2001-2004 Swedish Institute of Computer Science. 00003 * All rights reserved. 00004 * 00005 * Redistribution and use in source and binary forms, with or without modification, 00006 * are permitted provided that the following conditions are met: 00007 * 00008 * 1. Redistributions of source code must retain the above copyright notice, 00009 * this list of conditions and the following disclaimer. 00010 * 2. Redistributions in binary form must reproduce the above copyright notice, 00011 * this list of conditions and the following disclaimer in the documentation 00012 * and/or other materials provided with the distribution. 00013 * 3. The name of the author may not be used to endorse or promote products 00014 * derived from this software without specific prior written permission. 00015 * 00016 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 00017 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 00018 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 00019 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 00020 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 00021 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 00022 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 00023 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 00024 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 00025 * OF SUCH DAMAGE. 00026 * 00027 * This file is part of the lwIP TCP/IP stack. 00028 * 00029 * Author: Adam Dunkels <adam@sics.se> 00030 * Simon Goldschmidt 00031 * 00032 */ 00033 #ifndef __LWIP_TIMERS_H__ 00034 #define __LWIP_TIMERS_H__ 00035 00036 #include "lwip/opt.h" 00037 00038 #include "lwip/err.h" 00039 #include "lwip/sys.h" 00040 00041 #ifdef __cplusplus 00042 extern "C" { 00043 #endif 00044 00045 #ifndef LWIP_DEBUG_TIMERNAMES 00046 #ifdef LWIP_DEBUG 00047 #define LWIP_DEBUG_TIMERNAMES SYS_DEBUG 00048 #else /* LWIP_DEBUG */ 00049 #define LWIP_DEBUG_TIMERNAMES 0 00050 #endif /* LWIP_DEBUG*/ 00051 #endif 00052 00053 /** Function prototype for a timeout callback function. Register such a function 00054 * using sys_timeout(). 00055 * 00056 * @param arg Additional argument to pass to the function - set up by sys_timeout() 00057 */ 00058 typedef void (* sys_timeout_handler)(void *arg); 00059 00060 struct sys_timeo { 00061 struct sys_timeo *next; 00062 u32_t time; 00063 sys_timeout_handler h; 00064 void *arg; 00065 #if LWIP_DEBUG_TIMERNAMES 00066 const char* handler_name; 00067 #endif /* LWIP_DEBUG_TIMERNAMES */ 00068 }; 00069 00070 void sys_timeouts_init(void); 00071 00072 #if LWIP_DEBUG_TIMERNAMES 00073 void sys_timeout_debug(u32_t msecs, sys_timeout_handler h, void *arg, const char* handler_name); 00074 #define sys_timeout(msecs, handler, arg) sys_timeout_debug(msecs, handler, arg, #handler) 00075 #else /* LWIP_DEBUG_TIMERNAMES */ 00076 void sys_timeout(u32_t msecs, sys_timeout_handler h, void *arg); 00077 #endif /* LWIP_DEBUG_TIMERNAMES */ 00078 00079 void sys_untimeout(sys_timeout_handler h, void *arg); 00080 #if NO_SYS 00081 void sys_check_timeouts(void); 00082 void sys_restart_timeouts(void); 00083 #else /* NO_SYS */ 00084 void sys_timeouts_mbox_fetch(sys_mbox_t *mbox, void **msg); 00085 #endif /* NO_SYS */ 00086 00087 00088 #ifdef __cplusplus 00089 } 00090 #endif 00091 00092 #endif /* __LWIP_TIMERS_H__ */
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