source: arduino-1-6-7/trunk/fuentes/arduino-ide-amd64/hardware/arduino/avr/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/SERVICES/LWIP/lwip-1.3.2/src/include/lwip/netbuf.h @ 4837

Last change on this file since 4837 was 4837, checked in by daduve, 2 years ago

Adding new version

File size: 3.3 KB
Line 
1/* This header file is part of the ATMEL AVR-UC3-SoftwareFramework-1.7.0 Release */
2
3/*
4 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without modification,
8 * are permitted provided that the following conditions are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright notice,
11 *    this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright notice,
13 *    this list of conditions and the following disclaimer in the documentation
14 *    and/or other materials provided with the distribution.
15 * 3. The name of the author may not be used to endorse or promote products
16 *    derived from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
19 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
20 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
21 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
22 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
23 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
26 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
27 * OF SUCH DAMAGE.
28 *
29 * This file is part of the lwIP TCP/IP stack.
30 *
31 * Author: Adam Dunkels <adam@sics.se>
32 *
33 */
34#ifndef __LWIP_NETBUF_H__
35#define __LWIP_NETBUF_H__
36
37#include "lwip/opt.h"
38#include "lwip/pbuf.h"
39#include "lwip/ip_addr.h"
40
41#ifdef __cplusplus
42extern "C" {
43#endif
44
45struct netbuf {
46  struct pbuf *p, *ptr;
47  struct ip_addr *addr;
48  u16_t port;
49#if LWIP_NETBUF_RECVINFO
50  struct ip_addr *toaddr;
51  u16_t toport;
52#endif /* LWIP_NETBUF_RECVINFO */
53};
54
55/* Network buffer functions: */
56struct netbuf *   netbuf_new      (void);
57void              netbuf_delete   (struct netbuf *buf);
58void *            netbuf_alloc    (struct netbuf *buf, u16_t size);
59void              netbuf_free     (struct netbuf *buf);
60err_t             netbuf_ref      (struct netbuf *buf,
61           const void *dataptr, u16_t size);
62void              netbuf_chain    (struct netbuf *head,
63           struct netbuf *tail);
64
65u16_t             netbuf_len      (struct netbuf *buf);
66err_t             netbuf_data     (struct netbuf *buf,
67           void **dataptr, u16_t *len);
68s8_t              netbuf_next     (struct netbuf *buf);
69void              netbuf_first    (struct netbuf *buf);
70
71
72#define netbuf_copy_partial(buf, dataptr, len, offset) \
73  pbuf_copy_partial((buf)->p, (dataptr), (len), (offset))
74#define netbuf_copy(buf,dataptr,len) netbuf_copy_partial(buf, dataptr, len, 0)
75#define netbuf_take(buf, dataptr, len) pbuf_take((buf)->p, dataptr, len)
76#define netbuf_len(buf)              ((buf)->p->tot_len)
77#define netbuf_fromaddr(buf)         ((buf)->addr)
78#define netbuf_fromport(buf)         ((buf)->port)
79#if LWIP_NETBUF_RECVINFO
80#define netbuf_destaddr(buf)         ((buf)->toaddr)
81#define netbuf_destport(buf)         ((buf)->toport)
82#endif /* LWIP_NETBUF_RECVINFO */
83
84#ifdef __cplusplus
85}
86#endif
87
88#endif /* __LWIP_NETBUF_H__ */
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