/* * Copyright (c) 2001-2003 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 * */ #ifndef __ARCH_SYS_ARCH_H__ #define __ARCH_SYS_ARCH_H__ #include "arch/cc.h" #ifdef USE_RTOS #include "includes.h" #define MAX_QUEUE_ENTRIES 20 // 每个消息邮箱的大小 //LWIP消息邮箱结构体 typedef struct { OS_EVENT* pQ; //UCOS中指向事件控制块的指针 void* pvQEntries[MAX_QUEUE_ENTRIES];//消息队列 MAX_QUEUE_ENTRIES消息队列中最多消息数 } TQ_DESCR, *PQ_DESCR; typedef OS_EVENT *sys_sem_t; typedef OS_EVENT *sys_mutex_t; typedef PQ_DESCR sys_mbox_t; //LWIP使用的消息邮箱,其实就是UCOS中的消息队列 typedef INT8U sys_thread_t; #endif u32_t sys_now(void); #endif