Contiki 2.6

rucb.h

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00001 /*
00002  * Copyright (c) 2007, Swedish Institute of Computer Science.
00003  * All rights reserved.
00004  *
00005  * Redistribution and use in source and binary forms, with or without
00006  * modification, are permitted provided that the following conditions
00007  * are met:
00008  * 1. Redistributions of source code must retain the above copyright
00009  *    notice, this list of conditions and the following disclaimer.
00010  * 2. Redistributions in binary form must reproduce the above copyright
00011  *    notice, this list of conditions and the following disclaimer in the
00012  *    documentation and/or other materials provided with the distribution.
00013  * 3. Neither the name of the Institute nor the names of its contributors
00014  *    may be used to endorse or promote products derived from this software
00015  *    without specific prior written permission.
00016  *
00017  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
00018  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00019  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00020  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
00021  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00022  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
00023  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
00024  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
00025  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
00026  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
00027  * SUCH DAMAGE.
00028  *
00029  * This file is part of the Contiki operating system.
00030  *
00031  * $Id: rucb.h,v 1.4 2009/11/08 19:40:18 adamdunkels Exp $
00032  */
00033 
00034 /**
00035  * \file
00036  *         Header file for the reliable unicast bulk transfer module
00037  * \author
00038  *         Adam Dunkels <adam@sics.se>
00039  */
00040 
00041 #ifndef __RUCB_H__
00042 #define __RUCB_H__
00043 
00044 #include "net/rime/runicast.h"
00045 
00046 struct rucb_conn;
00047 
00048 enum {
00049   RUCB_FLAG_NONE,
00050   RUCB_FLAG_NEWFILE,
00051   RUCB_FLAG_LASTCHUNK,
00052 };
00053 
00054 struct rucb_callbacks {
00055   void (* write_chunk)(struct rucb_conn *c, int offset, int flag,
00056                        char *data, int len);
00057   int (* read_chunk)(struct rucb_conn *c, int offset, char *to,
00058                      int maxsize);
00059   void (* timedout)(struct rucb_conn *c);
00060 };
00061 
00062 #define RUCB_DATASIZE 64
00063 
00064 struct rucb_conn {
00065   struct runicast_conn c;
00066   const struct rucb_callbacks *u;
00067   rimeaddr_t receiver, sender;
00068   uint16_t chunk;
00069   uint8_t last_seqno;
00070   int last_size;
00071 };
00072 
00073 void rucb_open(struct rucb_conn *c, uint16_t channel,
00074               const struct rucb_callbacks *u);
00075 void rucb_close(struct rucb_conn *c);
00076 
00077 int rucb_send(struct rucb_conn *c, const rimeaddr_t *receiver);
00078 
00079 
00080 #endif /* __RUCB_H__ */