147 lines
4.3 KiB
C
147 lines
4.3 KiB
C
/*
|
|
* 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.
|
|
*
|
|
* This file is part of the Contiki operating system.
|
|
*
|
|
* $Id: cfs-cooja.c,v 1.6 2007/11/25 22:44:06 fros4943 Exp $
|
|
*/
|
|
#include <string.h>
|
|
#include "lib/simEnvChange.h"
|
|
#include "cfs/cfs.h"
|
|
|
|
#define FLAG_FILE_CLOSED 0
|
|
#define FLAG_FILE_OPEN 1
|
|
|
|
struct filestate {
|
|
char flag;
|
|
int fileptr;
|
|
};
|
|
|
|
static struct filestate file;
|
|
|
|
const struct simInterface cfs_interface;
|
|
|
|
// COOJA variables
|
|
#define CFS_BUF_SIZE 60*1024
|
|
char simCFSData[CFS_BUF_SIZE] = { 0 };
|
|
char simCFSChanged = 0;
|
|
int simCFSRead = 0;
|
|
int simCFSWritten = 0;
|
|
|
|
/*---------------------------------------------------------------------------*/
|
|
int
|
|
cfs_open(const char *n, int f)
|
|
{
|
|
if(file.flag == FLAG_FILE_CLOSED) {
|
|
file.flag = FLAG_FILE_OPEN;
|
|
file.fileptr = 0;
|
|
return 1;
|
|
} else {
|
|
return -1;
|
|
}
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
void
|
|
cfs_close(int f)
|
|
{
|
|
file.flag = FLAG_FILE_CLOSED;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
int
|
|
cfs_read(int f, void *buf, unsigned int len)
|
|
{
|
|
if(f == FLAG_FILE_OPEN) {
|
|
// TODO Should yield a few times?
|
|
memcpy(buf, &simCFSData[0] + file.fileptr, len);
|
|
file.fileptr += len;
|
|
simCFSChanged = 1;
|
|
simCFSRead += len;
|
|
return len;
|
|
} else {
|
|
return -1;
|
|
}
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
int
|
|
cfs_write(int f, void *buf, unsigned int len)
|
|
{
|
|
if(f == FLAG_FILE_OPEN) {
|
|
// TODO Should yield a few times?
|
|
memcpy(&simCFSData[0] + file.fileptr, buf, len);
|
|
file.fileptr += len;
|
|
simCFSChanged = 1;
|
|
simCFSWritten += len;
|
|
return len;
|
|
} else {
|
|
return -1;
|
|
}
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
unsigned int
|
|
cfs_seek(int f, unsigned int o)
|
|
{
|
|
if(f == FLAG_FILE_OPEN) {
|
|
file.fileptr = o;
|
|
return o;
|
|
} else {
|
|
return -1;
|
|
}
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
int
|
|
cfs_opendir(struct cfs_dir *p, const char *n)
|
|
{
|
|
return 1;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
int
|
|
cfs_readdir(struct cfs_dir *p, struct cfs_dirent *e)
|
|
{
|
|
return 1;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
void
|
|
cfs_closedir(struct cfs_dir *p)
|
|
{
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static void
|
|
doInterfaceActionsBeforeTick(void)
|
|
{
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static void
|
|
doInterfaceActionsAfterTick(void)
|
|
{
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
SIM_INTERFACE(cfs_interface,
|
|
doInterfaceActionsBeforeTick,
|
|
doInterfaceActionsAfterTick);
|
|
/*---------------------------------------------------------------------------*/
|