146 lines
4.4 KiB
C
146 lines
4.4 KiB
C
/*
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* Copyright (c) 2004, Adam Dunkels.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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* Author: Adam Dunkels <adam@sics.se>
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*
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* $Id: cfs-cbm-posix.c,v 1.1 2007/05/23 23:11:28 oliverschmidt Exp $
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*/
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#include "contiki.h"
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#include "log.h"
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#include "cfs.h"
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#include "cfs-service.h"
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#include <cbm.h>
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#include <string.h>
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#include <fcntl.h>
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#include <unistd.h>
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static int s_open(const char *n, int f);
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static void s_close(int f);
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static int s_read(int f, char *b, unsigned int l);
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static int s_write(int f, char *b, unsigned int l);
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static int s_opendir(struct cfs_dir *p, const char *n);
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static int s_readdir(struct cfs_dir *p, struct cfs_dirent *e);
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static int s_closedir(struct cfs_dir *p);
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static const struct cfs_service_interface interface =
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{
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CFS_SERVICE_VERSION,
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s_open,
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s_close,
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s_read,
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s_write,
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s_opendir,
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s_readdir,
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s_closedir
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};
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EK_EVENTHANDLER(eventhandler, ev, data);
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EK_PROCESS(proc, CFS_SERVICE_NAME ": KERNAL", EK_PRIO_NORMAL,
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eventhandler, NULL, (void *)&interface);
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/*---------------------------------------------------------------------------*/
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LOADER_INIT_FUNC(cfs_cbm_init, arg)
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{
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arg_free(arg);
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ek_service_start(CFS_SERVICE_NAME, &proc);
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}
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/*---------------------------------------------------------------------------*/
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EK_EVENTHANDLER(eventhandler, ev, data)
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{
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switch(ev) {
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case EK_EVENT_INIT:
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case EK_EVENT_REPLACE:
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log_message("Starting KERNAL CFS", "");
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break;
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case EK_EVENT_REQUEST_REPLACE:
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ek_replace((struct ek_proc *)data, &interface);
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break;
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case EK_EVENT_REQUEST_EXIT:
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ek_exit();
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break;
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}
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}
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/*---------------------------------------------------------------------------*/
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static int
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s_open(const char *n, int f)
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{
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if(f == CFS_READ) {
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return open(n, O_RDONLY);
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} else {
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return open(n, O_CREAT|O_RDWR);
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}
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}
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/*---------------------------------------------------------------------------*/
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static void
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s_close(int f)
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{
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close(f);
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}
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/*---------------------------------------------------------------------------*/
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static int
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s_read(int f, char *b, unsigned int l)
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{
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return read(f, b, l);
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}
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/*---------------------------------------------------------------------------*/
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static int
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s_write(int f, char *b, unsigned int l)
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{
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return write(f, b, l);
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}
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/*---------------------------------------------------------------------------*/
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static int
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s_opendir(struct cfs_dir *p, const char *n)
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{
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return cbm_opendir(4, 8);
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}
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/*---------------------------------------------------------------------------*/
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static int
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s_readdir(struct cfs_dir *p, struct cfs_dirent *e)
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{
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struct cbm_dirent ce;
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int ret;
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ret = cbm_readdir(4, &ce);
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strncpy(e->name, ce.name, sizeof(ce.name));
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e->size = ce.size;
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return ret;
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}
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/*---------------------------------------------------------------------------*/
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static int
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s_closedir(struct cfs_dir *p)
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{
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cbm_closedir(4);
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return 1;
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}
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/*---------------------------------------------------------------------------*/
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