osd-contiki/platform/cooja/testapps/testcfs.c

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/*
* Copyright (c) 2006, 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.
*
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* $Id: testcfs.c,v 1.3 2009/03/02 09:44:07 fros4943 Exp $
*/
#include "contiki.h"
#include "sys/etimer.h"
#include "sys/clock.h"
#include "cfs/cfs.h"
#include <stdio.h>
PROCESS(test_cfs_process, "Test CFS process");
AUTOSTART_PROCESSES(&test_cfs_process);
PROCESS_THREAD(test_cfs_process, ev, data)
{
static struct etimer et;
static int fd;
static uint16_t counter;
static char buf[30];
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PROCESS_BEGIN();
printf("Starting CFS test process\n");
while(1) {
etimer_set(&et, CLOCK_SECOND);
PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
/* Write to filesystem */
sprintf(buf, "filedata%04ifiledata%04i", counter, counter);
fd = cfs_open("filename", CFS_READ | CFS_WRITE);
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cfs_seek(fd, 0, CFS_SEEK_SET);
cfs_write(fd, buf, 24);
cfs_close(fd);
printf("Wrote to filesystem: '%s'\n", buf);
counter++;
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etimer_set(&et, CLOCK_SECOND);
PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
/* Read from filesystem */
fd = cfs_open("file1", CFS_READ | CFS_WRITE);
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cfs_seek(fd, 4, CFS_SEEK_SET);
cfs_read(fd, buf, 12);
cfs_close(fd);
buf[12] = '\0';
printf("Read from filesystem: '%s'\n", buf);
}
PROCESS_END();
}