HelenOS sources

root/uspace/srv/fs/fat/fat.c

DEFINITIONS

1. main

/*
 * Copyright (c) 2006 Martin Decky
 * Copyright (c) 2008 Jakub Jermar
 * Copyright (c) 2011 Oleg Romanenko
 * 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 fat
 * @{
 */

/**
 * @file        fat.c
 * @brief       FAT file system driver for HelenOS.
 */

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

#define NAME    "fat"

vfs_info_t fat_vfs_info = {
        .name = NAME,
        .concurrent_read_write = false,
        .write_retains_size = false,
        .instance = 0,
};

int main(int argc, char **argv)
{
        printf(NAME ": HelenOS FAT file system server\n");

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

        errno_t rc = fat_idx_init();
        if (rc != EOK)
                goto err;

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

        rc = fs_register(vfs_sess, &fat_vfs_info, &fat_ops, &fat_libfs_ops);
        if (rc != EOK) {
                fat_idx_fini();
                goto err;
        }

        printf(NAME ": Accepting connections\n");
        task_retval(0);
        async_manager();

        /* Not reached */
        return 0;

err:
        printf(NAME ": Failed to register file system: %s\n", str_error(rc));
        return rc;
}

/**
 * @}
 */