usr/test/ramdisk/ramdisk.c

Prex Home / Browse Source - Prex Version: 0.9.0
/* [<][>][^][v][top][bottom][index][help] */
This source file includes following definitions.
test_read
test_write
main
   1 /*
   2  * Copyright (c) 2006, Kohsuke Ohtani
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. Neither the name of the author nor the names of any co-contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  */
  29 
  30 /*
  31  * ramdisk.c - ramdisk driver test program.
  32  */
  33 
  34 #include <sys/prex.h>
  35 #include <stdio.h>
  36 #include <string.h>
  37 #include <ctype.h>
  38 
  39 static char test_msg[] = "Hello. This is a test message.";
  40 
  41 int
  42 test_read(int sector)
  43 {
  44         device_t ramdev;
  45         size_t size;
  46         int error, i, j;
  47         static unsigned char disk_buf[512];
  48         unsigned char ch;
  49 
  50         printf("open ram0\n");
  51         error = device_open("ram0", 0, &ramdev);
  52         if (error) {
  53                 printf("open failed\n");
  54                 return 0;
  55         }
  56         printf("opened\n");
  57 
  58         printf("ramdisk read: sector=%d buf=%x\n", sector, (u_int)disk_buf);
  59         size = 512;
  60         error = device_read(ramdev, disk_buf, &size, sector);
  61         if (error) {
  62                 printf("read failed\n");
  63                 device_close(ramdev);
  64                 return 0;
  65         }
  66         printf("read comp: sector=%d buf=%x\n", sector, (u_int)disk_buf);
  67 
  68         for (i = 0; i < (512 / 16); i++) {
  69                 for (j = 0; j < 16; j++)
  70                         printf("%02x ", disk_buf[i * 16 + j]);
  71                 printf("    ");
  72                 for (j = 0; j < 16; j++) {
  73                         ch = disk_buf[i * 16 + j];
  74                         if (isprint(ch))
  75                                 putchar(ch);
  76                         else
  77                                 putchar('.');
  78 
  79                 }
  80                 printf("\n");
  81         }
  82         printf("\n");
  83         error = device_close(ramdev);
  84         if (error)
  85                 printf("close failed\n");
  86 
  87         return 0;
  88 }
  89 
  90 int
  91 test_write(int sector)
  92 {
  93         device_t ramdev;
  94         size_t size;
  95         int error;
  96         static unsigned char disk_buf[512];
  97 
  98         printf("open ram0\n");
  99         error = device_open("ram0", 0, &ramdev);
 100         if (error) {
 101                 printf("open failed\n");
 102                 return 0;
 103         }
 104         printf("opened\n");
 105 
 106         size = 512;
 107         error = device_read(ramdev, disk_buf, &size, sector);
 108         if (error) {
 109                 printf("read failed\n");
 110                 device_close(ramdev);
 111                 return 0;
 112         }
 113         printf("read comp sector=%d\n", sector);
 114 
 115         strcpy((char *)disk_buf, test_msg);
 116 
 117         size = 512;
 118         error = device_write(ramdev, disk_buf, &size, sector);
 119         if (error) {
 120                 printf("write failed\n");
 121                 device_close(ramdev);
 122                 return 0;
 123         }
 124         printf("write comp sector=%d\n", sector);
 125 
 126         error = device_close(ramdev);
 127         if (error)
 128                 printf("close failed\n");
 129         return 0;
 130 }
 131 
 132 int
 133 main(int argc, char *argv[])
 134 {
 135         test_read(0);
 136         test_read(1);
 137         test_write(1);
 138         test_read(1);
 139         return 0;
 140 }
/* [<][>][^][v][top][bottom][index][help] */
root/usr/test/ramdisk/ramdisk.c

DEFINITIONS
