Colony » Colony Scout

/*

 * Copyright (c) 2007, Kohsuke Ohtani

 * 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 author nor the names of any co-contributors

 *    may be used to endorse or promote products derived from this software

 *    without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.

 */

#include <sys/prex.h>

#include <sys/posix.h>

#include <ipc/ipc.h>

#include <ipc/fs.h>

#include <stddef.h>

object_t __fs_obj;

/*

 * This is called first when task is started

 */

void

__file_init(void)

{

        int error;

        /*

         * Look up file system server

         */

        error = object_lookup("!fs", &__fs_obj);

        if (error)

                __fs_obj = 0;

}

/*

 * Clean up

 */

void

__file_exit(void)

{

        struct msg m;

        /* Notify to file system server */

        if (__fs_obj != 0) {

                m.hdr.code = FS_EXIT;

                msg_send(__fs_obj, &m, sizeof(m));

        }

}

/*

 * Notify to file system server.

 * This routine is used by native task which uses file system.

 */

void

fslib_init(void)

{

        struct msg m;

        if (__fs_obj == 0)

                __file_init();

        m.hdr.code = FS_REGISTER;

        msg_send(__fs_obj, &m, sizeof(m));

}

/*

 * Clean up (native task)

 */

void

fslib_exit(void)

{

        __file_exit();

}