osd-contiki/platform/win32/cfs/cfs-win32.c

182 lines
5.2 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.
*
* Author: Oliver Schmidt <ol.sc@web.de>
*
* $Id: cfs-win32.c,v 1.1 2006/08/13 16:23:10 oliverschmidt Exp $
*/
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <stdlib.h>
#include <stdio.h>
#include <io.h>
#include <fcntl.h>
#include "contiki.h"
#include "cfs/cfs.h"
#include "cfs/cfs-service.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_seek(int f, unsigned int offset);
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_win32_service, cfs_service,
{ s_open, s_close, s_read, s_write, s_seek,
s_opendir, s_readdir, s_closedir });
struct cfs_win32_dir {
HANDLE handle;
unsigned char* name;
unsigned int size;
};
PROCESS(cfs_win32_process, "CFS Win32 service");
PROCESS_THREAD(cfs_win32_process, ev, data)
{
PROCESS_BEGIN();
SERVICE_REGISTER(cfs_win32_service);
PROCESS_WAIT_EVENT_UNTIL(ev == PROCESS_EVENT_SERVICE_REMOVED ||
ev == PROCESS_EVENT_EXIT);
SERVICE_REMOVE(cfs_win32_service);
PROCESS_END();
}
/*---------------------------------------------------------------------------*/
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_TRUNC|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_seek(int f, unsigned int o)
{
return _lseek(f, o, SEEK_SET);
}
/*---------------------------------------------------------------------------*/
static int
s_opendir(struct cfs_dir *p, const char *n)
{
struct cfs_win32_dir *dir = (struct cfs_win32_dir *)p;
WIN32_FIND_DATA data;
char dirname[MAX_PATH];
if(n == NULL) {
n = "";
}
if(*n == '/') {
GetModuleFileName(NULL, dirname, sizeof(dirname));
strcpy(strrchr(dirname, '\\'), "/*");
}else{
sprintf(dirname, "%s/*", n);
}
dir->handle = FindFirstFile(dirname, &data);
if(dir->handle == INVALID_HANDLE_VALUE) {
dir->name = NULL;
return 1;
}
dir->name = _strdup(data.cFileName);
dir->size = ((data.nFileSizeLow + 511) / 512) % 1000;
return 0;
}
/*---------------------------------------------------------------------------*/
static int
s_readdir(struct cfs_dir *p, struct cfs_dirent *e)
{
struct cfs_win32_dir *dir = (struct cfs_win32_dir *)p;
WIN32_FIND_DATA data;
if(dir->name == NULL) {
return 1;
}
strncpy(e->name, dir->name, sizeof(e->name));
e->size = dir->size;
free(dir->name);
if(FindNextFile(dir->handle, &data) == 0) {
dir->name = NULL;
return 0;
}
dir->name = _strdup(data.cFileName);
dir->size = ((data.nFileSizeLow + 511) / 512) % 1000;
return 0;
}
/*---------------------------------------------------------------------------*/
static int
s_closedir(struct cfs_dir *p)
{
struct cfs_win32_dir *dir = (struct cfs_win32_dir *)p;
free(dir->name);
FindClose(dir->handle);
return 1;
}
/*---------------------------------------------------------------------------*/