Contiki 2.6

testcfs.c

00001 /*
00002  * Copyright (c) 2006, Swedish Institute of Computer Science.
00003  * All rights reserved.
00004  *
00005  * Redistribution and use in source and binary forms, with or without
00006  * modification, are permitted provided that the following conditions
00007  * are met:
00008  * 1. Redistributions of source code must retain the above copyright
00009  *    notice, this list of conditions and the following disclaimer.
00010  * 2. Redistributions in binary form must reproduce the above copyright
00011  *    notice, this list of conditions and the following disclaimer in the
00012  *    documentation and/or other materials provided with the distribution.
00013  * 3. Neither the name of the Institute nor the names of its contributors
00014  *    may be used to endorse or promote products derived from this software
00015  *    without specific prior written permission.
00016  *
00017  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
00018  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00019  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00020  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
00021  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00022  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
00023  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
00024  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
00025  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
00026  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
00027  * SUCH DAMAGE.
00028  *
00029  * $Id: testcfs.c,v 1.3 2009/03/02 09:44:07 fros4943 Exp $
00030  */
00031 
00032 #include "contiki.h"
00033 #include "sys/etimer.h"
00034 #include "sys/clock.h"
00035 #include "cfs/cfs.h"
00036 
00037 #include <stdio.h>
00038 
00039 PROCESS(test_cfs_process, "Test CFS process");
00040 AUTOSTART_PROCESSES(&test_cfs_process);
00041 
00042 PROCESS_THREAD(test_cfs_process, ev, data)
00043 {
00044   static struct etimer et;
00045   static int fd;
00046   static uint16_t counter;
00047   static char buf[30];
00048 
00049   PROCESS_BEGIN();
00050 
00051   printf("Starting CFS test process\n");
00052 
00053   while(1) {
00054     etimer_set(&et, CLOCK_SECOND);
00055     PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
00056 
00057     /* Write to filesystem */
00058     sprintf(buf, "filedata%04ifiledata%04i", counter, counter);
00059     fd = cfs_open("filename", CFS_READ | CFS_WRITE);
00060     cfs_seek(fd, 0, CFS_SEEK_SET);
00061     cfs_write(fd, buf, 24);
00062     cfs_close(fd);
00063     printf("Wrote to filesystem: '%s'\n", buf);
00064     counter++;
00065 
00066     etimer_set(&et, CLOCK_SECOND);
00067     PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
00068 
00069     /* Read from filesystem */
00070     fd = cfs_open("file1", CFS_READ | CFS_WRITE);
00071     cfs_seek(fd, 4, CFS_SEEK_SET);
00072     cfs_read(fd, buf, 12);
00073     cfs_close(fd);
00074     buf[12] = '\0';
00075     printf("Read from filesystem: '%s'\n", buf);
00076 
00077   }
00078 
00079   PROCESS_END();
00080 }