Pehr Hovey / Mbed 2 deprecated UDPtest

Some quick code to use UDP-only (no TCP) with mBed. Echos received packets and sends packets when a button is pressed

Dependencies:   mbed

Core/lwIP/include/lwip/netbuf.h@0:a548a085de55, 2010-03-14 (annotated)

Committer:
pehrhovey
Date:
Sun Mar 14 00:54:12 2010 +0000
Revision:
0:a548a085de55

        

        
Who changed what in which revision?

        

            
                
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/*





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 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.





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 * All rights reserved. 





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 * 





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 * Redistribution and use in source and binary forms, with or without modification, 





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 * are permitted provided that the following conditions are met:





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 *





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 * 1. Redistributions of source code must retain the above copyright notice,





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 *    this list of conditions and the following disclaimer.





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 * 2. Redistributions in binary form must reproduce the above copyright notice,





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 *    this list of conditions and the following disclaimer in the documentation





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 *    and/or other materials provided with the distribution.





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 * 3. The name of the author may not be used to endorse or promote products





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 *    derived from this software without specific prior written permission. 





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 *





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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 





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 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 





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 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 





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 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 





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 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 





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 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 





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 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 





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 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 





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 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 





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 * OF SUCH DAMAGE.





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 *





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 * This file is part of the lwIP TCP/IP stack.





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 * 





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 * Author: Adam Dunkels <adam@sics.se>





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 *





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 */





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#ifndef __LWIP_NETBUF_H__





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#define __LWIP_NETBUF_H__





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#include "lwip/opt.h"





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#include "lwip/pbuf.h"





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#include "lwip/ip_addr.h"





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#ifdef __cplusplus





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extern "C" {





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#endif





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struct netbuf {





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  struct pbuf *p, *ptr;





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  struct ip_addr *addr;





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  u16_t port;





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#if LWIP_NETBUF_RECVINFO





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  struct ip_addr *toaddr;





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  u16_t toport;





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#endif /* LWIP_NETBUF_RECVINFO */





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};





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/* Network buffer functions: */





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struct netbuf *   netbuf_new      (void);





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void              netbuf_delete   (struct netbuf *buf);





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void *            netbuf_alloc    (struct netbuf *buf, u16_t size);





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void              netbuf_free     (struct netbuf *buf);





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err_t             netbuf_ref      (struct netbuf *buf,





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           const void *dataptr, u16_t size);





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void              netbuf_chain    (struct netbuf *head,





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           struct netbuf *tail);





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u16_t             netbuf_len      (struct netbuf *buf);





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err_t             netbuf_data     (struct netbuf *buf,





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           void **dataptr, u16_t *len);





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s8_t              netbuf_next     (struct netbuf *buf);





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void              netbuf_first    (struct netbuf *buf);





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#define netbuf_copy_partial(buf, dataptr, len, offset) \





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  pbuf_copy_partial((buf)->p, (dataptr), (len), (offset))





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#define netbuf_copy(buf,dataptr,len) netbuf_copy_partial(buf, dataptr, len, 0)





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#define netbuf_take(buf, dataptr, len) pbuf_take((buf)->p, dataptr, len)





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#define netbuf_len(buf)              ((buf)->p->tot_len)





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#define netbuf_fromaddr(buf)         ((buf)->addr)





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#define netbuf_fromport(buf)         ((buf)->port)





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#if LWIP_NETBUF_RECVINFO





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#define netbuf_destaddr(buf)         ((buf)->toaddr)





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#define netbuf_destport(buf)         ((buf)->toport)





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#endif /* LWIP_NETBUF_RECVINFO */





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#ifdef __cplusplus





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}





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#endif





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#endif /* __LWIP_NETBUF_H__ */