programs/ramdisk/main.c

   1 /*
   2  * Copyright (c) 2008 The LOST Project. All rights reserved.
   3  *
   4  * This code is derived from software contributed to the LOST Project
   5  * by Alexander Siol and Janosch Graef.
   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  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. All advertising materials mentioning features or use of this software
  16  *    must display the following acknowledgement:
  17  *     This product includes software developed by the LOST Project
  18  *     and its contributors.
  19  * 4. Neither the name of the LOST Project nor the names of its
  20  *    contributors may be used to endorse or promote products derived
  21  *    from this software without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  24  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  25  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  26  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR
  27  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  28  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  29  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  30  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  31  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  32  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  33  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  34  */
  35
  36 #include <stdint.h>
  37 #include <stdlib.h>
  38 #include <stdio.h>
  39
  40 #include "cdi/fs.h"
  41 #include "cdi/misc.h"
  42
  43 #include "ramdisk_cdi.h"
  44
  45 struct ramdisk_driver {
  46     struct cdi_fs_driver fs;
  47 };
  48
  49 static struct ramdisk_driver ramdisk_driver;
  50 static const char* driver_name = "ramdisk";
  51
  52 static int ramdisk_driver_init(struct ramdisk_driver* driver);
  53 static void ramdisk_driver_destroy(struct cdi_driver* driver);
  54
  55 #ifdef CDI_STANDALONE
  56 int main(void)
  57 #else
  58 int init_ramdisk(void)
  59 #endif
  60 {
  61     cdi_init();
  62
  63     if (ramdisk_driver_init(&ramdisk_driver) != 0) {
  64         return -1;
  65     }
  66     cdi_fs_driver_register((struct cdi_fs_driver*) &ramdisk_driver);
  67
  68 #ifdef CDI_STANDALONE
  69     cdi_run_drivers();
  70 #endif
  71
  72     return 0;
  73 }
  74
  75 /**
  76  * Initialisiert die Datenstrukturen fuer den ramdisk-Treiber
  77  */
  78 static int ramdisk_driver_init(struct ramdisk_driver* driver)
  79 {
  80     // Konstruktor der Vaterklasse
  81     cdi_fs_driver_init((struct cdi_fs_driver*) driver);
  82
  83     // Namen setzen
  84     driver->fs.drv.name = driver_name;
  85     driver->fs.fs_init = ramdisk_fs_init;
  86     driver->fs.fs_destroy = ramdisk_fs_destroy;
  87
  88     driver->fs.drv.destroy = ramdisk_driver_destroy;
  89     return 0;
  90 }
  91
  92 /**
  93  * Deinitialisiert die Datenstrukturen fuer den ramdisk-Treiber
  94  */
  95 static void ramdisk_driver_destroy(struct cdi_driver* driver)
  96 {
  97     cdi_fs_driver_destroy((struct cdi_fs_driver*) driver);
  98 }