osd-contiki/examples/sky/test-deluge.c

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/*
* 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.
*
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* $Id: test-deluge.c,v 1.3 2009/04/07 15:14:17 nvt-se Exp $
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*/
/**
* \file
* A test program for Deluge.
* \author
* Nicolas Tsiftes <nvt@sics.se>
*/
#include "contiki.h"
#include "cfs/cfs.h"
#include "deluge.h"
#include "node-id.h"
#include <stdio.h>
#include <string.h>
#ifndef SINK_ID
#define SINK_ID 1
#endif
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#ifndef FILE_SIZE
#define FILE_SIZE 1000
#endif
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PROCESS(deluge_test_process, "Deluge test process");
AUTOSTART_PROCESSES(&deluge_test_process);
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/*---------------------------------------------------------------------------*/
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PROCESS_THREAD(deluge_test_process, ev, data)
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{
int fd, r;
char buf[32];
static struct etimer et;
PROCESS_BEGIN();
memset(buf, 0, sizeof(buf));
if(node_id == SINK_ID) {
strcpy(buf, "This is version 1 of the file");
} else {
strcpy(buf, "This is version 0 of the file");
}
cfs_remove("test");
fd = cfs_open("test", CFS_WRITE);
if(fd < 0) {
process_exit(NULL);
}
if(cfs_write(fd, buf, sizeof(buf)) != sizeof(buf)) {
cfs_close(fd);
process_exit(NULL);
}
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if(cfs_seek(fd, FILE_SIZE, CFS_SEEK_SET) != FILE_SIZE) {
printf("failed to seek to the end\n");
}
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deluge_disseminate("test", node_id == SINK_ID);
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cfs_close(fd);
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etimer_set(&et, CLOCK_SECOND * 5);
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for(;;) {
PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
if(node_id != SINK_ID) {
fd = cfs_open("test", CFS_READ);
if(fd < 0) {
printf("failed to open the test file\n");
} else {
r = cfs_read(fd, buf, sizeof(buf));
buf[sizeof(buf) - 1] = '\0';
if(r <= 0) {
printf("failed to read data from the file\n");
} else {
printf("File contents: %s\n", buf);
}
cfs_close(fd);
}
}
etimer_reset(&et);
}
PROCESS_END();
}
/*---------------------------------------------------------------------------*/