146 lines
4.4 KiB
C
146 lines
4.4 KiB
C
/*
|
|
* Copyright (c) 2004, Adam Dunkels.
|
|
* 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.
|
|
*
|
|
* Author: Adam Dunkels <adam@sics.se>
|
|
*
|
|
* $Id: cfs-cbm-posix.c,v 1.1 2006/06/17 22:41:26 adamdunkels Exp $
|
|
*/
|
|
#include "contiki.h"
|
|
|
|
#include "log.h"
|
|
#include "cfs.h"
|
|
#include "cfs-service.h"
|
|
|
|
#include <cbm.h>
|
|
#include <string.h>
|
|
#include <fcntl.h>
|
|
#include <unistd.h>
|
|
|
|
|
|
|
|
static int s_open(const char *n, int f);
|
|
static void s_close(int f);
|
|
static int s_read(int f, char *b, unsigned int l);
|
|
static int s_write(int f, char *b, unsigned int l);
|
|
static int s_opendir(struct cfs_dir *p, const char *n);
|
|
static int s_readdir(struct cfs_dir *p, struct cfs_dirent *e);
|
|
static int s_closedir(struct cfs_dir *p);
|
|
|
|
static const struct cfs_service_interface interface =
|
|
{
|
|
CFS_SERVICE_VERSION,
|
|
s_open,
|
|
s_close,
|
|
s_read,
|
|
s_write,
|
|
s_opendir,
|
|
s_readdir,
|
|
s_closedir
|
|
};
|
|
|
|
EK_EVENTHANDLER(eventhandler, ev, data);
|
|
EK_PROCESS(proc, CFS_SERVICE_NAME ": KERNAL", EK_PRIO_NORMAL,
|
|
eventhandler, NULL, (void *)&interface);
|
|
|
|
/*---------------------------------------------------------------------------*/
|
|
LOADER_INIT_FUNC(cfs_cbm_init, arg)
|
|
{
|
|
arg_free(arg);
|
|
ek_service_start(CFS_SERVICE_NAME, &proc);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
EK_EVENTHANDLER(eventhandler, ev, data)
|
|
{
|
|
switch(ev) {
|
|
case EK_EVENT_INIT:
|
|
case EK_EVENT_REPLACE:
|
|
log_message("Starting KERNAL CFS", "");
|
|
break;
|
|
case EK_EVENT_REQUEST_REPLACE:
|
|
ek_replace((struct ek_proc *)data, &interface);
|
|
break;
|
|
case EK_EVENT_REQUEST_EXIT:
|
|
ek_exit();
|
|
break;
|
|
}
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static int
|
|
s_open(const char *n, int f)
|
|
{
|
|
if(f == CFS_READ) {
|
|
return open(n, O_RDONLY);
|
|
} else {
|
|
return open(n, O_CREAT|O_RDWR);
|
|
}
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static void
|
|
s_close(int f)
|
|
{
|
|
close(f);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static int
|
|
s_read(int f, char *b, unsigned int l)
|
|
{
|
|
return read(f, b, l);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static int
|
|
s_write(int f, char *b, unsigned int l)
|
|
{
|
|
return write(f, b, l);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static int
|
|
s_opendir(struct cfs_dir *p, const char *n)
|
|
{
|
|
return cbm_opendir(4, 8);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static int
|
|
s_readdir(struct cfs_dir *p, struct cfs_dirent *e)
|
|
{
|
|
struct cbm_dirent ce;
|
|
int ret;
|
|
ret = cbm_readdir(4, &ce);
|
|
strncpy(e->name, ce.name, sizeof(ce.name));
|
|
e->size = ce.size;
|
|
return ret;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static int
|
|
s_closedir(struct cfs_dir *p)
|
|
{
|
|
cbm_closedir(4);
|
|
return 1;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|