Yasushi TAUCHI / Mbed 2 deprecated giken9_HTMLServer_Sample

ソースの整理中ですが、利用はできます。

Dependencies:   EthernetInterface HttpServer TextLCD mbed-rpc mbed-rtos mbed Socket lwip-eth lwip-sys lwip

EthernetInterface/lwip/include/lwip/pbuf.h@0:7766f6712673, 2014-03-12 (annotated)

Committer:
yueee_yt
Date:
Wed Mar 12 04:19:54 2014 +0000
Revision:
0:7766f6712673
???????????????

Who changed what in which revision?

UserRevisionLine numberNew contents of line
yueee_yt 0:7766f6712673 1 /*
yueee_yt 0:7766f6712673 2 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
yueee_yt 0:7766f6712673 3 * All rights reserved.
yueee_yt 0:7766f6712673 4 *
yueee_yt 0:7766f6712673 5 * Redistribution and use in source and binary forms, with or without modification,
yueee_yt 0:7766f6712673 6 * are permitted provided that the following conditions are met:
yueee_yt 0:7766f6712673 7 *
yueee_yt 0:7766f6712673 8 * 1. Redistributions of source code must retain the above copyright notice,
yueee_yt 0:7766f6712673 9 * this list of conditions and the following disclaimer.
yueee_yt 0:7766f6712673 10 * 2. Redistributions in binary form must reproduce the above copyright notice,
yueee_yt 0:7766f6712673 11 * this list of conditions and the following disclaimer in the documentation
yueee_yt 0:7766f6712673 12 * and/or other materials provided with the distribution.
yueee_yt 0:7766f6712673 13 * 3. The name of the author may not be used to endorse or promote products
yueee_yt 0:7766f6712673 14 * derived from this software without specific prior written permission.
yueee_yt 0:7766f6712673 15 *
yueee_yt 0:7766f6712673 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
yueee_yt 0:7766f6712673 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
yueee_yt 0:7766f6712673 18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
yueee_yt 0:7766f6712673 19 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
yueee_yt 0:7766f6712673 20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
yueee_yt 0:7766f6712673 21 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
yueee_yt 0:7766f6712673 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
yueee_yt 0:7766f6712673 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
yueee_yt 0:7766f6712673 24 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
yueee_yt 0:7766f6712673 25 * OF SUCH DAMAGE.
yueee_yt 0:7766f6712673 26 *
yueee_yt 0:7766f6712673 27 * This file is part of the lwIP TCP/IP stack.
yueee_yt 0:7766f6712673 28 *
yueee_yt 0:7766f6712673 29 * Author: Adam Dunkels <adam@sics.se>
yueee_yt 0:7766f6712673 30 *
yueee_yt 0:7766f6712673 31 */
yueee_yt 0:7766f6712673 32
yueee_yt 0:7766f6712673 33 #ifndef __LWIP_PBUF_H__
yueee_yt 0:7766f6712673 34 #define __LWIP_PBUF_H__
yueee_yt 0:7766f6712673 35
yueee_yt 0:7766f6712673 36 #include "lwip/opt.h"
yueee_yt 0:7766f6712673 37 #include "lwip/err.h"
yueee_yt 0:7766f6712673 38
yueee_yt 0:7766f6712673 39 #ifdef __cplusplus
yueee_yt 0:7766f6712673 40 extern "C" {
yueee_yt 0:7766f6712673 41 #endif
yueee_yt 0:7766f6712673 42
yueee_yt 0:7766f6712673 43 /** Currently, the pbuf_custom code is only needed for one specific configuration
yueee_yt 0:7766f6712673 44 * of IP_FRAG */
yueee_yt 0:7766f6712673 45 #define LWIP_SUPPORT_CUSTOM_PBUF (IP_FRAG && !IP_FRAG_USES_STATIC_BUF && !LWIP_NETIF_TX_SINGLE_PBUF)
yueee_yt 0:7766f6712673 46
yueee_yt 0:7766f6712673 47 #define PBUF_TRANSPORT_HLEN 20
yueee_yt 0:7766f6712673 48 #define PBUF_IP_HLEN 20
yueee_yt 0:7766f6712673 49
yueee_yt 0:7766f6712673 50 typedef enum {
yueee_yt 0:7766f6712673 51 PBUF_TRANSPORT,
yueee_yt 0:7766f6712673 52 PBUF_IP,
yueee_yt 0:7766f6712673 53 PBUF_LINK,
yueee_yt 0:7766f6712673 54 PBUF_RAW
yueee_yt 0:7766f6712673 55 } pbuf_layer;
yueee_yt 0:7766f6712673 56
yueee_yt 0:7766f6712673 57 typedef enum {
yueee_yt 0:7766f6712673 58 PBUF_RAM, /* pbuf data is stored in RAM */
yueee_yt 0:7766f6712673 59 PBUF_ROM, /* pbuf data is stored in ROM */
yueee_yt 0:7766f6712673 60 PBUF_REF, /* pbuf comes from the pbuf pool */
yueee_yt 0:7766f6712673 61 PBUF_POOL /* pbuf payload refers to RAM */
yueee_yt 0:7766f6712673 62 } pbuf_type;
yueee_yt 0:7766f6712673 63
yueee_yt 0:7766f6712673 64
yueee_yt 0:7766f6712673 65 /** indicates this packet's data should be immediately passed to the application */
yueee_yt 0:7766f6712673 66 #define PBUF_FLAG_PUSH 0x01U
yueee_yt 0:7766f6712673 67 /** indicates this is a custom pbuf: pbuf_free and pbuf_header handle such a
yueee_yt 0:7766f6712673 68 a pbuf differently */
yueee_yt 0:7766f6712673 69 #define PBUF_FLAG_IS_CUSTOM 0x02U
yueee_yt 0:7766f6712673 70 /** indicates this pbuf is UDP multicast to be looped back */
yueee_yt 0:7766f6712673 71 #define PBUF_FLAG_MCASTLOOP 0x04U
yueee_yt 0:7766f6712673 72
yueee_yt 0:7766f6712673 73 struct pbuf {
yueee_yt 0:7766f6712673 74 /** next pbuf in singly linked pbuf chain */
yueee_yt 0:7766f6712673 75 struct pbuf *next;
yueee_yt 0:7766f6712673 76
yueee_yt 0:7766f6712673 77 /** pointer to the actual data in the buffer */
yueee_yt 0:7766f6712673 78 void *payload;
yueee_yt 0:7766f6712673 79
yueee_yt 0:7766f6712673 80 /**
yueee_yt 0:7766f6712673 81 * total length of this buffer and all next buffers in chain
yueee_yt 0:7766f6712673 82 * belonging to the same packet.
yueee_yt 0:7766f6712673 83 *
yueee_yt 0:7766f6712673 84 * For non-queue packet chains this is the invariant:
yueee_yt 0:7766f6712673 85 * p->tot_len == p->len + (p->next? p->next->tot_len: 0)
yueee_yt 0:7766f6712673 86 */
yueee_yt 0:7766f6712673 87 u16_t tot_len;
yueee_yt 0:7766f6712673 88
yueee_yt 0:7766f6712673 89 /** length of this buffer */
yueee_yt 0:7766f6712673 90 u16_t len;
yueee_yt 0:7766f6712673 91
yueee_yt 0:7766f6712673 92 /** pbuf_type as u8_t instead of enum to save space */
yueee_yt 0:7766f6712673 93 u8_t /*pbuf_type*/ type;
yueee_yt 0:7766f6712673 94
yueee_yt 0:7766f6712673 95 /** misc flags */
yueee_yt 0:7766f6712673 96 u8_t flags;
yueee_yt 0:7766f6712673 97
yueee_yt 0:7766f6712673 98 /**
yueee_yt 0:7766f6712673 99 * the reference count always equals the number of pointers
yueee_yt 0:7766f6712673 100 * that refer to this pbuf. This can be pointers from an application,
yueee_yt 0:7766f6712673 101 * the stack itself, or pbuf->next pointers from a chain.
yueee_yt 0:7766f6712673 102 */
yueee_yt 0:7766f6712673 103 u16_t ref;
yueee_yt 0:7766f6712673 104 };
yueee_yt 0:7766f6712673 105
yueee_yt 0:7766f6712673 106 #if LWIP_SUPPORT_CUSTOM_PBUF
yueee_yt 0:7766f6712673 107 /** Prototype for a function to free a custom pbuf */
yueee_yt 0:7766f6712673 108 typedef void (*pbuf_free_custom_fn)(struct pbuf *p);
yueee_yt 0:7766f6712673 109
yueee_yt 0:7766f6712673 110 /** A custom pbuf: like a pbuf, but following a function pointer to free it. */
yueee_yt 0:7766f6712673 111 struct pbuf_custom {
yueee_yt 0:7766f6712673 112 /** The actual pbuf */
yueee_yt 0:7766f6712673 113 struct pbuf pbuf;
yueee_yt 0:7766f6712673 114 /** This function is called when pbuf_free deallocates this pbuf(_custom) */
yueee_yt 0:7766f6712673 115 pbuf_free_custom_fn custom_free_function;
yueee_yt 0:7766f6712673 116 };
yueee_yt 0:7766f6712673 117 #endif /* LWIP_SUPPORT_CUSTOM_PBUF */
yueee_yt 0:7766f6712673 118
yueee_yt 0:7766f6712673 119 /* Initializes the pbuf module. This call is empty for now, but may not be in future. */
yueee_yt 0:7766f6712673 120 #define pbuf_init()
yueee_yt 0:7766f6712673 121
yueee_yt 0:7766f6712673 122 struct pbuf *pbuf_alloc(pbuf_layer l, u16_t length, pbuf_type type);
yueee_yt 0:7766f6712673 123 #if LWIP_SUPPORT_CUSTOM_PBUF
yueee_yt 0:7766f6712673 124 struct pbuf *pbuf_alloced_custom(pbuf_layer l, u16_t length, pbuf_type type,
yueee_yt 0:7766f6712673 125 struct pbuf_custom *p, void *payload_mem,
yueee_yt 0:7766f6712673 126 u16_t payload_mem_len);
yueee_yt 0:7766f6712673 127 #endif /* LWIP_SUPPORT_CUSTOM_PBUF */
yueee_yt 0:7766f6712673 128 void pbuf_realloc(struct pbuf *p, u16_t size);
yueee_yt 0:7766f6712673 129 u8_t pbuf_header(struct pbuf *p, s16_t header_size);
yueee_yt 0:7766f6712673 130 void pbuf_ref(struct pbuf *p);
yueee_yt 0:7766f6712673 131 u8_t pbuf_free(struct pbuf *p);
yueee_yt 0:7766f6712673 132 u8_t pbuf_clen(struct pbuf *p);
yueee_yt 0:7766f6712673 133 void pbuf_cat(struct pbuf *head, struct pbuf *tail);
yueee_yt 0:7766f6712673 134 void pbuf_chain(struct pbuf *head, struct pbuf *tail);
yueee_yt 0:7766f6712673 135 struct pbuf *pbuf_dechain(struct pbuf *p);
yueee_yt 0:7766f6712673 136 err_t pbuf_copy(struct pbuf *p_to, struct pbuf *p_from);
yueee_yt 0:7766f6712673 137 u16_t pbuf_copy_partial(struct pbuf *p, void *dataptr, u16_t len, u16_t offset);
yueee_yt 0:7766f6712673 138 err_t pbuf_take(struct pbuf *buf, const void *dataptr, u16_t len);
yueee_yt 0:7766f6712673 139 struct pbuf *pbuf_coalesce(struct pbuf *p, pbuf_layer layer);
yueee_yt 0:7766f6712673 140 #if LWIP_CHECKSUM_ON_COPY
yueee_yt 0:7766f6712673 141 err_t pbuf_fill_chksum(struct pbuf *p, u16_t start_offset, const void *dataptr,
yueee_yt 0:7766f6712673 142 u16_t len, u16_t *chksum);
yueee_yt 0:7766f6712673 143 #endif /* LWIP_CHECKSUM_ON_COPY */
yueee_yt 0:7766f6712673 144
yueee_yt 0:7766f6712673 145 u8_t pbuf_get_at(struct pbuf* p, u16_t offset);
yueee_yt 0:7766f6712673 146 u16_t pbuf_memcmp(struct pbuf* p, u16_t offset, const void* s2, u16_t n);
yueee_yt 0:7766f6712673 147 u16_t pbuf_memfind(struct pbuf* p, const void* mem, u16_t mem_len, u16_t start_offset);
yueee_yt 0:7766f6712673 148 u16_t pbuf_strstr(struct pbuf* p, const char* substr);
yueee_yt 0:7766f6712673 149
yueee_yt 0:7766f6712673 150 #ifdef __cplusplus
yueee_yt 0:7766f6712673 151 }
yueee_yt 0:7766f6712673 152 #endif
yueee_yt 0:7766f6712673 153
yueee_yt 0:7766f6712673 154 #endif /* __LWIP_PBUF_H__ */