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/*
* Copyright (c) 1997-1999 University of Utah and the Flux Group.
* All rights reserved.
*
* This file is part of the Flux OSKit. The OSKit is free software, also known
* as "open source;" you can redistribute it and/or modify it under the terms
* of the GNU General Public License (GPL), version 2, as published by the Free
* Software Foundation (FSF). To explore alternate licensing terms, contact
* the University of Utah at csl-dist@cs.utah.edu or +1-801-585-3271.
*
* The OSKit is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GPL for more details. You should have
* received a copy of the GPL along with the OSKit; see the file COPYING. If
* not, write to the FSF, 59 Temple Place #330, Boston, MA 02111-1307, USA.
*/
/*
* start_fs_native_bmod.c
*
* start up bmod in native mode, copying in from OSKITROOT.
*/
#include <oskit/dev/error.h>
#include <oskit/fs/dir.h>
#include <oskit/fs/fsnamespace.h>
#include <oskit/fs/memfs.h>
#include <oskit/clientos.h>
#include <oskit/startup.h>
#include <oskit/c/stdio.h>
#include <oskit/c/stdlib.h>
#include <oskit/c/string.h>
#include <oskit/c/assert.h>
/* Defined in the unix library */
int oskit_unix_bmod_copydir(oskit_dir_t *rootdir, const char *path);
static void start_fs_native_bmod_cleanup(void *arg);
void
start_fs_native_bmod()
{
oskit_filesystem_t *memfs;
oskit_fsnamespace_t *fsn;
oskit_dir_t *root;
int rc;
char *fsname;
char buf[BUFSIZ], *bp = buf;
rc = oskit_memfs_init(start_osenv(), &memfs);
if (rc) {
printf("start_fs_native_bmod: Could not allocate a bmod!\n");
return;
}
rc = oskit_filesystem_getroot(memfs, &root);
if (rc) {
printf("start_fs_native_bmod: Could not getroot the bmod!\n");
return;
}
oskit_filesystem_release(memfs);
/*
* Populate the bmodfs if OSKITROOT is set. The format is a colon
* separated list of directories to be copied in.
*/
fsname = (char *)getenv("OSKITROOT");
if (fsname) {
printf("OSKITROOT=%s\n", fsname);
while (*fsname) {
while (*fsname && *fsname != ':')
*bp++ = *fsname++;
*bp = '\0';
oskit_unix_bmod_copydir(root, buf);
if (*fsname == ':')
fsname++;
bp = buf;
}
}
/*
* Create the filesystem namespace and set it.
*/
if (oskit_create_fsnamespace(root, root, &fsn)) {
printf("start_fs_native_bmod: "
"Could not create filesystem namespace!\n");
exit(69);
}
/*
* Release our reference since the fsnamespace took a couple.
*/
oskit_dir_release(root);
/*
* Initialize the filesystem namespace for the program.
*/
oskit_clientos_setfsnamespace(fsn);
/*
* And release our reference since the clientos took one.
*/
oskit_fsnamespace_release(fsn);
/*
* Set up to clear out the clientos fsname handle at exit.
*/
startup_atexit(start_fs_native_bmod_cleanup, NULL);
}
/*
* Must release the filesystem namespace upon exit so that everything
* gets cleared away. Of course, this is not strictly required in a
* memory filesystem, but this code is supposed to be demonstration code,
* so might as well be complete.
*/
static void
start_fs_native_bmod_cleanup(void *arg)
{
oskit_clientos_setfsnamespace(NULL);
}
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