osd-contiki/secondary/platform/c64/loader/cfs-cbm.c

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/*
* 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.c,v 1.1 2007/05/23 22:37:00 oliverschmidt Exp $
*/
#include "contiki.h"
#include "cfs/cfs.h"
#include "cfs/cfs-service.h"
#include <cbm.h>
#include <string.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);
SERVICE(cfs_cbm_service, cfs_service,
{ s_open, s_close, s_read, s_write, s_opendir, s_readdir, s_closedir });
PROCESS(cfs_cbm_process, "CFS KERNAL service");
PROCESS_THREAD(cfs_cbm_process, ev, data) {
PROCESS_BEGIN();
log_message("Starting KERNAL CFS", "");
SERVICE_REGISTER(cfs_cbm_service);
while(ev != PROCESS_EVENT_SERVICE_REMOVED &&
ev != PROCESS_EVENT_EXIT) {
PROCESS_WAIT_EVENT();
}
SERVICE_REMOVE(cfs_cbm_service);
PROCESS_END();
}
/*---------------------------------------------------------------------------*/
static int
s_open(const char *n, int f)
{
if(cbm_open(2, _curunit, f, n) == 0) {
return 2;
}
return -1;
}
/*---------------------------------------------------------------------------*/
static void
s_close(int f)
{
cbm_close(f);
}
/*---------------------------------------------------------------------------*/
static int
s_read(int f, char *b, unsigned int l)
{
return cbm_read(f, b, l);
}
/*---------------------------------------------------------------------------*/
static int
s_write(int f, char *b, unsigned int l)
{
return cbm_write(f, b, l);
}
/*---------------------------------------------------------------------------*/
static int
s_opendir(struct cfs_dir *p, const char *n)
{
return cbm_opendir(4, _curunit);
}
/*---------------------------------------------------------------------------*/
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;
}
/*---------------------------------------------------------------------------*/