deac/osd-contiki
1
0
Fork 0
Code Issues Pull requests Releases Wiki Activity

Import of the contiki-2.x development code from the SICS internal CVS server

Browse source
This commit is contained in:
adamdunkels 2006-06-17 22:41:10 +00:00
commit c9e808d638
671 changed files with 95332 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

172
core/cfs/cfs-posix.c Normal file
View file

@ -0,0 +1,172 @@
/*
* Copyright (c) 2004, 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: Adam Dunkels <adam@sics.se>
*
* $Id: cfs-posix.c,v 1.1 2006/06/17 22:41:15 adamdunkels Exp $
*/
#include "contiki.h"
#include "cfs/cfs.h"
#include "cfs/cfs-service.h"
#undef LITTLE_ENDIAN
#undef BIG_ENDIAN
#undef BYTE_ORDER
#undef HTONS
#include <fcntl.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/uio.h>
#include <sys/types.h>
#include <dirent.h>
#include <string.h>
#include <stdio.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_posix_service, cfs_service,
{ s_open, s_close, s_read, s_write, s_seek,
s_opendir, s_readdir, s_closedir });
struct cfs_posix_dir {
DIR *dirp;
};
PROCESS(cfs_posix_process, "CFS POSIX service");
PROCESS_THREAD(cfs_posix_process, ev, data)
{
PROCESS_BEGIN();
SERVICE_REGISTER(cfs_posix_service);
PROCESS_WAIT_EVENT_UNTIL(ev != PROCESS_EVENT_SERVICE_REMOVED &&
ev != PROCESS_EVENT_EXIT);
SERVICE_REMOVE(cfs_posix_service);
PROCESS_END();
}
/*---------------------------------------------------------------------------*/
static int
s_open(const char *n, int f)
{
char filename[255];
sprintf(filename, "cfs-root/%s", n);
if(f == CFS_READ) {
return open(filename, O_RDONLY);
} else {
return open(filename, 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_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_posix_dir *dir = (struct cfs_posix_dir *)p;
char dirname[255];
if(n == NULL) {
n = "";
}
sprintf(dirname, "cfs-root/%s", n);
dir->dirp = opendir(dirname);
if(dir->dirp == NULL) {
printf("cfs-posix: could not open directory '%s'\n", dirname);
}
return dir->dirp == NULL;
}
/*---------------------------------------------------------------------------*/
static int
s_readdir(struct cfs_dir *p, struct cfs_dirent *e)
{
struct cfs_posix_dir *dir = (struct cfs_posix_dir *)p;
struct dirent *res;
int ret;
if(dir->dirp == NULL) {
return 1;
}
res = readdir(dir->dirp);
if(res == NULL) {
return 1;
}
strncpy(e->name, res->d_name, sizeof(e->name));
e->size = 0;
return 0;
}
/*---------------------------------------------------------------------------*/
static int
s_closedir(struct cfs_dir *p)
{
struct cfs_posix_dir *dir = (struct cfs_posix_dir *)p;
if(dir->dirp != NULL) {
closedir(dir->dirp);
}
return 1;
}
/*---------------------------------------------------------------------------*/