Marco Zecchini
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Example_RTOS
Rtos API example
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snmp_pbuf_stream.h
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00001 /** 00002 * @file 00003 * SNMP pbuf stream wrapper (internal API, do not use in client code). 00004 */ 00005 00006 /* 00007 * Copyright (c) 2001-2004 Swedish Institute of Computer Science. 00008 * All rights reserved. 00009 * 00010 * Redistribution and use in source and binary forms, with or without modification, 00011 * are permitted provided that the following conditions are met: 00012 * 00013 * 1. Redistributions of source code must retain the above copyright notice, 00014 * this list of conditions and the following disclaimer. 00015 * 2. Redistributions in binary form must reproduce the above copyright notice, 00016 * this list of conditions and the following disclaimer in the documentation 00017 * and/or other materials provided with the distribution. 00018 * 3. The name of the author may not be used to endorse or promote products 00019 * derived from this software without specific prior written permission. 00020 * 00021 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 00022 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 00023 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 00024 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 00025 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 00026 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 00027 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 00028 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 00029 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 00030 * OF SUCH DAMAGE. 00031 * 00032 * This file is part of the lwIP TCP/IP stack. 00033 * 00034 * Author: Martin Hentschel <info@cl-soft.de> 00035 * 00036 */ 00037 00038 #ifndef LWIP_HDR_APPS_SNMP_PBUF_STREAM_H 00039 #define LWIP_HDR_APPS_SNMP_PBUF_STREAM_H 00040 00041 #include "lwip/apps/snmp_opts.h" 00042 00043 #if LWIP_SNMP 00044 00045 #include "lwip/err.h" 00046 #include "lwip/pbuf.h" 00047 00048 #ifdef __cplusplus 00049 extern "C" { 00050 #endif 00051 00052 struct snmp_pbuf_stream 00053 { 00054 struct pbuf* pbuf; 00055 u16_t offset; 00056 u16_t length; 00057 }; 00058 00059 err_t snmp_pbuf_stream_init(struct snmp_pbuf_stream* pbuf_stream, struct pbuf* p, u16_t offset, u16_t length); 00060 err_t snmp_pbuf_stream_read(struct snmp_pbuf_stream* pbuf_stream, u8_t* data); 00061 err_t snmp_pbuf_stream_write(struct snmp_pbuf_stream* pbuf_stream, u8_t data); 00062 err_t snmp_pbuf_stream_writebuf(struct snmp_pbuf_stream* pbuf_stream, const void* buf, u16_t buf_len); 00063 err_t snmp_pbuf_stream_writeto(struct snmp_pbuf_stream* pbuf_stream, struct snmp_pbuf_stream* target_pbuf_stream, u16_t len); 00064 err_t snmp_pbuf_stream_seek(struct snmp_pbuf_stream* pbuf_stream, s32_t offset); 00065 err_t snmp_pbuf_stream_seek_abs(struct snmp_pbuf_stream* pbuf_stream, u32_t offset); 00066 00067 #ifdef __cplusplus 00068 } 00069 #endif 00070 00071 #endif /* LWIP_SNMP */ 00072 00073 #endif /* LWIP_HDR_APPS_SNMP_PBUF_STREAM_H */
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