opt.h

lwip在ucos上的移植源码

/*
 * Copyright (c) 2001, 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. Neither the name of the Institute nor the names of its contributors 
 *    may be used to endorse or promote products derived from this software 
 *    without specific prior written permission. 
 *
 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE OR CONTRIBUTORS 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 <[e-mail]>
 *
 * $Id: opt.h,v 1.1.1.1 2003/05/17 05:06:57 chenyu Exp $
 */
#ifndef __LWIP_OPT_H__
#define __LWIP_OPT_H__

#include "lwipopts.h"

/* Define some handy default values for configuration parameters. */

#ifndef ICMP_TTL
#define ICMP_TTL                255
#endif

#ifndef UDP_TTL
#define UDP_TTL                 255
#endif

#ifndef TCP_TTL
#define TCP_TTL                 255
#endif

#ifndef TCP_MSS
#define TCP_MSS                 128 /* A *very* conservative default. */
#endif

#ifndef TCP_WND
#define TCP_WND                 2048
#endif 

#ifndef TCP_MAXRTX
#define TCP_MAXRTX              12
#endif

#ifndef TCP_SYNMAXRTX
#define TCP_SYNMAXRTX           6
#endif

#ifndef MEM_ALIGNMENT
#define MEM_ALIGNMENT           1
#endif

#ifndef PBUF_POOL_SIZE
#define PBUF_POOL_SIZE          16
#endif

#ifndef PBUF_POOL_BUFSIZE
#define PBUF_POOL_BUFSIZE       128
#endif

#ifndef PBUF_LINK_HLEN
#define PBUF_LINK_HLEN          0
#endif

#ifndef LWIP_UDP
#define LWIP_UDP                1
#endif

#ifndef LWIP_TCP
#define LWIP_TCP                1
#endif

#endif /* __LWIP_OPT_H__ */