source: mainline/uspace/srv/fs/ext4fs/ext4fs.c@ db8fb43

/*
 * Copyright (c) 2012 Frantisek Princ
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - 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.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
 */

/** @addtogroup fs
 * @{
 */ 

/**
 * @file        ext4fs.c
 * @brief       EXT4 file system driver for HelenOS.
 */

#include <async.h>
#include <errno.h>
#include <libfs.h>
#include <ns.h>
#include <stdio.h>
#include <task.h>
#include <ipc/services.h>
#include "ext4fs.h"
#include "../../vfs/vfs.h"

#define NAME    "ext4fs"

vfs_info_t ext4fs_vfs_info = {
        .name = NAME,
        .instance = 0,
};

/**
 * Entry point of ext4fs server.
 * Initialize data structures and IPC, then accepts connections in server mode.
 */
int main(int argc, char **argv)
{
        printf(NAME ": HelenOS EXT4 file system server\n");

        if (argc == 3) {
                if (!str_cmp(argv[1], "--instance"))
                        ext4fs_vfs_info.instance = strtol(argv[2], NULL, 10);
                else {
                        printf(NAME " Unrecognized parameters\n");
                        return -1;
                }
        }

        async_sess_t *vfs_sess = service_connect_blocking(EXCHANGE_SERIALIZE,
                SERVICE_VFS, 0, 0);
        if (!vfs_sess) {
                printf(NAME ": failed to connect to VFS\n");
                return -1;
        }

        int rc = ext4fs_global_init();
        if (rc != EOK) {
                printf(NAME ": Failed global initialization\n");
                return 1;
        }

        rc = fs_register(vfs_sess, &ext4fs_vfs_info, &ext4fs_ops,
            &ext4fs_libfs_ops);
        if (rc != EOK) {
                fprintf(stdout, NAME ": Failed to register fs (%d)\n", rc);
                return 1;
        }

        printf(NAME ": Accepting connections\n");
        task_retval(0);
        async_manager();
        /* not reached */
        return 0;
}

/**
 * @}
 */