nes-proj/apps/shell/shell-rime-unicast.c

198 lines
6.0 KiB
C

/*
* Copyright (c) 2008, 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.
*
* $Id: shell-rime-unicast.c,v 1.3 2009/11/08 19:43:00 adamdunkels Exp $
*/
/**
* \file
* A brief description of what this file is.
* \author
* Adam Dunkels <adam@sics.se>
*/
#include "contiki.h"
#include "contiki-conf.h"
#include "shell-rime-debug.h"
#include "dev/leds.h"
#include "lib/random.h"
#include "net/rime.h"
#include "net/rime/neighbor.h"
#include "net/rime/route.h"
#include "net/rime/trickle.h"
#include "net/rime/timesynch.h"
#include <stdio.h>
#ifndef HAVE_SNPRINTF
int snprintf(char *str, size_t size, const char *format, ...);
#endif /* HAVE_SNPRINTF */
#include <string.h>
#define MAX_DATALEN 32
#define UNICAST_MSG_HDRSIZE 2
struct unicast_msg {
uint16_t timestamp;
uint8_t data[MAX_DATALEN];
};
static uint8_t is_receiving;
static struct unicast_conn uc;
/*---------------------------------------------------------------------------*/
PROCESS(shell_unicast_send_process, "unicast-send");
SHELL_COMMAND(unicast_send_command,
"unicast-send",
"unicast-send <node addr>: send data to specific neighbor",
&shell_unicast_send_process);
PROCESS(shell_unicast_recv_process, "unicast-recv");
SHELL_COMMAND(unicast_recv_command,
"unicast-recv",
"unicast-recv: receive data that neighbors send with unicast-send",
&shell_unicast_recv_process);
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(shell_unicast_send_process, ev, data)
{
struct shell_input *input;
static rimeaddr_t receiver;
int len;
const char *nextptr;
struct unicast_msg *msg;
PROCESS_BEGIN();
receiver.u8[0] = shell_strtolong(data, &nextptr);
if(nextptr == data || *nextptr != '.') {
shell_output_str(&unicast_send_command,
"unicast <receiver>: recevier must be specified", "");
PROCESS_EXIT();
}
++nextptr;
receiver.u8[1] = shell_strtolong(nextptr, &nextptr);
/* snprintf(buf, sizeof(buf), "%d.%d", receiver.u8[0], receiver.u8[1]);
shell_output_str(&unicast_send_command, "Sending unicast packets to ", buf);*/
while(1) {
PROCESS_WAIT_EVENT_UNTIL(ev == shell_event_input);
input = data;
len = input->len1 + input->len2;
if(len == 0) {
PROCESS_EXIT();
}
if(len < MAX_DATALEN) {
packetbuf_clear();
packetbuf_set_datalen(len + UNICAST_MSG_HDRSIZE);
msg = packetbuf_dataptr();
memcpy(msg->data, input->data1, input->len1);
memcpy(msg->data + input->len1, input->data2, input->len2);
#if TIMESYNCH_CONF_ENABLED
msg->timestamp = timesynch_time();
#else
msg->timestamp = 0;
#endif
/* printf("Sending %d bytes\n", len);*/
unicast_send(&uc, &receiver);
}
}
PROCESS_END();
}
/*---------------------------------------------------------------------------*/
static void
recv_uc(struct unicast_conn *c, const rimeaddr_t *from)
{
struct unicast_msg *msg;
#define OUTPUT_BLOB_HDRSIZE 6
struct {
uint16_t len;
uint16_t from;
uint16_t latency;
uint16_t data[MAX_DATALEN];
} output_blob;
if(is_receiving == 0) {
return;
}
msg = packetbuf_dataptr();
#if TIMESYNCH_CONF_ENABLED
output_blob.latency = timesynch_time() - msg->timestamp;
#else
output_blob.latency = 0;
#endif
rimeaddr_copy((rimeaddr_t *)&output_blob.from, from);
memcpy(output_blob.data, msg->data, packetbuf_datalen() - UNICAST_MSG_HDRSIZE);
output_blob.len = 2 + (packetbuf_datalen() - UNICAST_MSG_HDRSIZE) / 2;
shell_output(&unicast_recv_command, &output_blob,
OUTPUT_BLOB_HDRSIZE + (packetbuf_datalen() - UNICAST_MSG_HDRSIZE),
NULL, 0);
/*
printf("unicast message received from %d.%d, latency %lu ms, data '%.*s'\n",
from->u8[0], from->u8[1],
(1000L * latency) / RTIMER_ARCH_SECOND,
packetbuf_datalen() - UNICAST_MSG_HDRSIZE,
msg->data);*/
}
static const struct unicast_callbacks unicast_callbacks = {recv_uc};
PROCESS_THREAD(shell_unicast_recv_process, ev, data)
{
PROCESS_EXITHANDLER(is_receiving = 0;);
PROCESS_BEGIN();
is_receiving = 1;
while(1) {
PROCESS_WAIT_EVENT();
}
PROCESS_END();
}
/*---------------------------------------------------------------------------*/
void
shell_rime_unicast_init(void)
{
unicast_open(&uc, SHELL_RIME_CHANNEL_UNICAST,
&unicast_callbacks);
shell_register_command(&unicast_send_command);
shell_register_command(&unicast_recv_command);
}
/*---------------------------------------------------------------------------*/