nes-proj/apps/shell/shell-netfile.c

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/*
* 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-netfile.c,v 1.5 2008/08/15 18:58:42 adamdunkels Exp $
*/
/**
* \file
* A brief description of what this file is.
* \author
* Adam Dunkels <adam@sics.se>
*/
#include "contiki.h"
#include "shell-netfile.h"
#include "net/rime.h"
#include "net/rime/rudolph0.h"
#include "dev/leds.h"
#include "cfs/cfs.h"
#include <stdio.h>
#include <string.h>
#define FILENAME_LEN 20
static struct rudolph0_conn rudolph0_conn;
static char filename[FILENAME_LEN];
static int receiving_file;
static struct pt recvnetfilept;
/*---------------------------------------------------------------------------*/
PROCESS(shell_netfile_process, "netfile");
SHELL_COMMAND(netfile_command,
"netfile",
"netfile: send file to entire network",
&shell_netfile_process);
PROCESS(shell_recvnetfile_process, "recvnetfile");
SHELL_COMMAND(recvnetfile_command,
"recvnetfile",
"recvnetfile: receive file from network and print to output",
&shell_recvnetfile_process);
/*---------------------------------------------------------------------------*/
static int
write_chunk(struct rudolph0_conn *c, int offset, int flag,
uint8_t *data, int datalen)
{
PT_BEGIN(&recvnetfilept);
PT_WAIT_UNTIL(&recvnetfilept, receiving_file);
leds_on(LEDS_YELLOW);
leds_on(LEDS_RED);
PT_WAIT_UNTIL(&recvnetfilept, flag == RUDOLPH0_FLAG_NEWFILE);
leds_off(LEDS_RED);
do {
if(datalen > 0) {
shell_output(&recvnetfile_command, data, datalen, "", 0);
printf("write_chunk wrote %d bytes at %d\n", datalen, offset);
}
PT_YIELD(&recvnetfilept);
} while(flag != RUDOLPH0_FLAG_LASTCHUNK);
shell_output(&recvnetfile_command, data, datalen, "", 0);
printf("write_chunk wrote %d bytes at %d\n", datalen, offset);
shell_output(&recvnetfile_command, "", 0, "", 0);
leds_off(LEDS_YELLOW);
receiving_file = 0;
process_post(&shell_recvnetfile_process, PROCESS_EVENT_CONTINUE, NULL);
PT_END(&recvnetfilept);
}
static int
read_chunk(struct rudolph0_conn *c, int offset, uint8_t *to, int maxsize)
{
int ret;
int fd;
fd = cfs_open(filename, CFS_READ);
cfs_seek(fd, offset);
ret = cfs_read(fd, to, maxsize);
printf("read_chunk %d bytes at %d, %d\n", ret, offset, (unsigned char)to[0]);
cfs_close(fd);
return ret;
}
CC_CONST_FUNCTION static struct rudolph0_callbacks rudolph0_callbacks =
{(void (*)(struct rudolph0_conn *, int, int, uint8_t *, int))write_chunk,
read_chunk};
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(shell_netfile_process, ev, data)
{
int fd;
PROCESS_BEGIN();
if(data != NULL) {
rudolph0_send(&rudolph0_conn, CLOCK_SECOND);
strncpy(filename, data, FILENAME_LEN);
fd = cfs_open(filename, CFS_READ);
if(fd < 0) {
shell_output_str(&netfile_command, "netfile: could not open file ", filename);
} else {
cfs_close(fd);
}
}
PROCESS_END();
}
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(shell_recvnetfile_process, ev, data)
{
PROCESS_BEGIN();
PT_INIT(&recvnetfilept);
receiving_file = 1;
while(1) {
struct shell_input *input;
PROCESS_WAIT_EVENT();
if(ev == shell_event_input) {
input = data;
if(input->len1 + input->len2 == 0) {
receiving_file = 0;
PROCESS_EXIT();
}
} else if(receiving_file == 0) {
PROCESS_EXIT();
}
}
PROCESS_END();
}
/*---------------------------------------------------------------------------*/
void
shell_netfile_init(void)
{
receiving_file = 0;
shell_register_command(&netfile_command);
shell_register_command(&recvnetfile_command);
rudolph0_open(&rudolph0_conn, SHELL_RIME_CHANNEL_NETFILE,
&rudolph0_callbacks);
}
/*---------------------------------------------------------------------------*/