nes-proj/core/net/rime/rucb.h

80 lines
2.5 KiB
C

/*
* Copyright (c) 2007, Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file is part of the Contiki operating system.
*
*/
/**
* \file
* Header file for the reliable unicast bulk transfer module
* \author
* Adam Dunkels <adam@sics.se>
*/
#ifndef RUCB_H_
#define RUCB_H_
#include "net/rime/runicast.h"
struct rucb_conn;
enum {
RUCB_FLAG_NONE,
RUCB_FLAG_NEWFILE,
RUCB_FLAG_LASTCHUNK,
};
struct rucb_callbacks {
void (* write_chunk)(struct rucb_conn *c, int offset, int flag,
char *data, int len);
int (* read_chunk)(struct rucb_conn *c, int offset, char *to,
int maxsize);
void (* timedout)(struct rucb_conn *c);
};
#define RUCB_DATASIZE 64
struct rucb_conn {
struct runicast_conn c;
const struct rucb_callbacks *u;
rimeaddr_t receiver, sender;
uint16_t chunk;
uint8_t last_seqno;
int last_size;
};
void rucb_open(struct rucb_conn *c, uint16_t channel,
const struct rucb_callbacks *u);
void rucb_close(struct rucb_conn *c);
int rucb_send(struct rucb_conn *c, const rimeaddr_t *receiver);
#endif /* RUCB_H_ */