mirror of https://github.com/dzavalishin/oskit/
132 lines
3.3 KiB
C
Executable File
132 lines
3.3 KiB
C
Executable File
/*
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* Copyright (c) 1997-2000 University of Utah and the Flux Group.
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* All rights reserved.
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*
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* This file is part of the Flux OSKit. The OSKit is free software, also known
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* as "open source;" you can redistribute it and/or modify it under the terms
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* of the GNU General Public License (GPL), version 2, as published by the Free
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* Software Foundation (FSF). To explore alternate licensing terms, contact
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* the University of Utah at csl-dist@cs.utah.edu or +1-801-585-3271.
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*
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* The OSKit is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GPL for more details. You should have
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* received a copy of the GPL along with the OSKit; see the file COPYING. If
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* not, write to the FSF, 59 Temple Place #330, Boston, MA 02111-1307, USA.
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*/
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/*
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* start_fs_native_bmod.c
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*
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* start up bmod in native mode, copying in from OSKITROOT.
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*/
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#include <oskit/dev/error.h>
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#include <oskit/fs/dir.h>
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#include <oskit/fs/fsnamespace.h>
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#include <oskit/fs/memfs.h>
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#include <oskit/clientos.h>
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#include <oskit/startup.h>
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#include <oskit/config.h>
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#include <oskit/c/stdio.h>
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#include <oskit/c/stdlib.h>
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#include <oskit/c/string.h>
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#include <oskit/c/assert.h>
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/* Defined in the unix library */
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int oskit_unix_bmod_copydir(oskit_dir_t *rootdir, const char *path);
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static void start_fs_native_bmod_cleanup(void *arg);
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void
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start_fs_native_bmod()
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{
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oskit_filesystem_t *memfs;
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oskit_fsnamespace_t *fsn;
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oskit_dir_t *root;
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int rc;
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char *fsname;
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char buf[BUFSIZ], *bp = buf;
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#ifdef KNIT
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rc = oskit_memfs_init(&memfs);
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#else
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rc = oskit_memfs_init(start_osenv(), &memfs);
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#endif
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if (rc) {
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printf("start_fs_native_bmod: Could not allocate a bmod!\n");
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return;
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}
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rc = oskit_filesystem_getroot(memfs, &root);
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if (rc) {
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printf("start_fs_native_bmod: Could not getroot the bmod!\n");
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return;
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}
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oskit_filesystem_release(memfs);
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/*
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* Populate the bmodfs if OSKITROOT is set. The format is a colon
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* separated list of directories to be copied in.
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*/
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fsname = (char *)getenv("OSKITROOT");
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if (fsname) {
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printf("OSKITROOT=%s\n", fsname);
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while (*fsname) {
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while (*fsname && *fsname != ':')
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*bp++ = *fsname++;
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*bp = '\0';
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oskit_unix_bmod_copydir(root, buf);
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if (*fsname == ':')
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fsname++;
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bp = buf;
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}
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}
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/*
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* Create the filesystem namespace and set it.
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*/
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if (oskit_create_fsnamespace(root, root, &fsn)) {
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printf("start_fs_native_bmod: "
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"Could not create filesystem namespace!\n");
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exit(69);
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}
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/*
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* Release our reference since the fsnamespace took a couple.
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*/
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oskit_dir_release(root);
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/*
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* Initialize the filesystem namespace for the program.
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*/
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oskit_clientos_setfsnamespace(fsn);
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/*
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* And release our reference since the clientos took one.
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*/
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oskit_fsnamespace_release(fsn);
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/*
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* Set up to clear out the clientos fsname handle at exit.
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*/
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startup_atexit(start_fs_native_bmod_cleanup, NULL);
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}
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/*
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* Must release the filesystem namespace upon exit so that everything
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* gets cleared away. Of course, this is not strictly required in a
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* memory filesystem, but this code is supposed to be demonstration code,
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* so might as well be complete.
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*/
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static void
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start_fs_native_bmod_cleanup(void *arg)
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{
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oskit_clientos_setfsnamespace(NULL);
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}
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