uspace/srv/fs/mfs/mfs.c

   1 /*
   2  * Copyright (c) 2006 Martin Decky
   3  * Copyright (c) 2008 Jakub Jermar
   4  * Copyright (c) 2011 Maurizio Lombardi
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  *
  11  * - Redistributions of source code must retain the above copyright
  12  *   notice, this list of conditions and the following disclaimer.
  13  * - Redistributions in binary form must reproduce the above copyright
  14  *   notice, this list of conditions and the following disclaimer in the
  15  *   documentation and/or other materials provided with the distribution.
  16  * - The name of the author may not be used to endorse or promote products
  17  *   derived from this software without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  20  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  21  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  22  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  23  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  24  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  28  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29  */
  30
  31 /** @addtogroup fs
  32  * @{
  33  */
  34
  35 /**
  36  * @file        mfs.c
  37  * @brief       Minix file system driver for HelenOS.
  38  */
  39
  40 #include <ipc/services.h>
  41 #include <stdlib.h>
  42 #include <str.h>
  43 #include <ns.h>
  44 #include <async.h>
  45 #include <errno.h>
  46 #include <str_error.h>
  47 #include <task.h>
  48 #include <stdio.h>
  49 #include <libfs.h>
  50 #include "mfs.h"
  51
  52 vfs_info_t mfs_vfs_info = {
  53         .name = NAME,
  54         .concurrent_read_write = false,
  55         .write_retains_size = false,
  56         .instance = 0,
  57 };
  58
  59 int main(int argc, char **argv)
  60 {
  61         errno_t rc;
  62
  63         printf(NAME ": HelenOS Minix file system server\n");
  64
  65         if (argc == 3) {
  66                 if (!str_cmp(argv[1], "--instance"))
  67                         mfs_vfs_info.instance = strtol(argv[2], NULL, 10);
  68                 else {
  69                         printf(NAME " Unrecognized parameters");
  70                         rc = EINVAL;
  71                         goto err;
  72                 }
  73         }
  74
  75         async_sess_t *vfs_sess = service_connect_blocking(SERVICE_VFS,
  76             INTERFACE_VFS_DRIVER, 0);
  77
  78         if (!vfs_sess) {
  79                 printf(NAME ": failed to connect to VFS\n");
  80                 rc = errno;
  81                 goto err;
  82         }
  83
  84         rc = mfs_global_init();
  85         if (rc != EOK) {
  86                 printf(NAME ": Failed global initialization\n");
  87                 goto err;
  88         }
  89
  90         rc = fs_register(vfs_sess, &mfs_vfs_info, &mfs_ops, &mfs_libfs_ops);
  91         if (rc != EOK)
  92                 goto err;
  93
  94         printf(NAME ": Accepting connections\n");
  95         task_retval(0);
  96         async_manager();
  97         /* not reached */
  98         return 0;
  99
 100 err:
 101         printf(NAME ": Failed to register file system: %s\n", str_error(rc));
 102         return rc;
 103 }
 104
 105 /**
 106  * @}
 107  */
 108