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181 lines
5.5 KiB
C
181 lines
5.5 KiB
C
/*
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* Copyright (c) 2008, Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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* $Id: shell-netfile.c,v 1.8 2009/02/27 14:28:02 nvt-se Exp $
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*/
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/**
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* \file
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* A brief description of what this file is.
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* \author
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* Adam Dunkels <adam@sics.se>
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*/
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#include "contiki.h"
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#include "shell-netfile.h"
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#include "net/rime.h"
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#include "net/rime/rudolph0.h"
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#include "dev/leds.h"
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#include "cfs/cfs.h"
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#include <stdio.h>
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#include <string.h>
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#define FILENAME_LEN 20
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static struct rudolph0_conn rudolph0_conn;
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static char filename[FILENAME_LEN];
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static int receiving_file;
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static struct pt recvnetfilept;
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/*---------------------------------------------------------------------------*/
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PROCESS(shell_netfile_process, "netfile");
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SHELL_COMMAND(netfile_command,
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"netfile",
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"netfile: send file to entire network",
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&shell_netfile_process);
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PROCESS(shell_recvnetfile_process, "recvnetfile");
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SHELL_COMMAND(recvnetfile_command,
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"recvnetfile",
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"recvnetfile: receive file from network and print to output",
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&shell_recvnetfile_process);
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/*---------------------------------------------------------------------------*/
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static int
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write_chunk_pt(struct rudolph0_conn *c, int offset, int flag,
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uint8_t *data, int datalen)
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{
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PT_BEGIN(&recvnetfilept);
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PT_WAIT_UNTIL(&recvnetfilept, receiving_file);
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leds_on(LEDS_YELLOW);
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leds_on(LEDS_RED);
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PT_WAIT_UNTIL(&recvnetfilept, flag == RUDOLPH0_FLAG_NEWFILE);
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leds_off(LEDS_RED);
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do {
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if(datalen > 0) {
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shell_output(&recvnetfile_command, data, datalen, "", 0);
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/* printf("write_chunk wrote %d bytes at %d\n", datalen, offset);*/
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}
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PT_YIELD(&recvnetfilept);
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} while(flag != RUDOLPH0_FLAG_LASTCHUNK);
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shell_output(&recvnetfile_command, data, datalen, "", 0);
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/* printf("write_chunk wrote %d bytes at %d\n", datalen, offset);*/
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shell_output(&recvnetfile_command, "", 0, "", 0);
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leds_off(LEDS_YELLOW);
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receiving_file = 0;
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process_post(&shell_recvnetfile_process, PROCESS_EVENT_CONTINUE, NULL);
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PT_END(&recvnetfilept);
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}
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static void
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write_chunk(struct rudolph0_conn *c, int offset, int flag,
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uint8_t *data, int datalen)
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{
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write_chunk_pt(c, offset, flag, data, datalen);
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}
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static int
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read_chunk(struct rudolph0_conn *c, int offset, uint8_t *to, int maxsize)
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{
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int ret;
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int fd;
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fd = cfs_open(filename, CFS_READ);
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cfs_seek(fd, offset, CFS_SEEK_SET);
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ret = cfs_read(fd, to, maxsize);
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/* printf("read_chunk %d bytes at %d, %d\n", ret, offset, (unsigned char)to[0]);*/
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cfs_close(fd);
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return ret;
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}
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CC_CONST_FUNCTION static struct rudolph0_callbacks rudolph0_callbacks =
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{/*(void (*)(struct rudolph0_conn *, int, int, uint8_t *, int))*/
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write_chunk,
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read_chunk};
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/*---------------------------------------------------------------------------*/
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PROCESS_THREAD(shell_netfile_process, ev, data)
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{
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int fd;
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PROCESS_BEGIN();
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if(data != NULL) {
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rudolph0_send(&rudolph0_conn, CLOCK_SECOND);
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strncpy(filename, data, FILENAME_LEN);
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fd = cfs_open(filename, CFS_READ);
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if(fd < 0) {
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shell_output_str(&netfile_command, "netfile: could not open file ", filename);
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} else {
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cfs_close(fd);
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}
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}
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PROCESS_END();
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}
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/*---------------------------------------------------------------------------*/
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PROCESS_THREAD(shell_recvnetfile_process, ev, data)
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{
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PROCESS_BEGIN();
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PT_INIT(&recvnetfilept);
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receiving_file = 1;
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while(1) {
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struct shell_input *input;
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PROCESS_WAIT_EVENT();
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if(ev == shell_event_input) {
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input = data;
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if(input->len1 + input->len2 == 0) {
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receiving_file = 0;
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PROCESS_EXIT();
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}
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} else if(receiving_file == 0) {
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PROCESS_EXIT();
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}
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}
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PROCESS_END();
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}
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/*---------------------------------------------------------------------------*/
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void
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shell_netfile_init(void)
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{
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receiving_file = 0;
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shell_register_command(&netfile_command);
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shell_register_command(&recvnetfile_command);
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rudolph0_open(&rudolph0_conn, SHELL_RIME_CHANNEL_NETFILE,
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&rudolph0_callbacks);
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}
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/*---------------------------------------------------------------------------*/
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