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From: cvs at opencores.org<cvs@o...>
Date: Thu Jun 7 16:37:28 CEST 2007
Subject: [cvs-checkins] MODIFIED: jop ...
Date: 00/07/06 07:16:37

Added: jop/java/pc/src/yaffs2/utils/emulation
FileEmulationUnix.java HiddenException.java
RamEmulationUnix.java Utils.java
Log:
Java port of YAFFS, a NAND flash file system. Under development.


Revision Changes Path
1.1 jop/java/pc/src/yaffs2/utils/emulation/FileEmulationUnix.java

http://www.opencores.org/cvsweb.shtml/jop/java/pc/src/yaffs2/utils/emulation/FileEmulationUnix.java?rev=1.1&content-type=text/x-cvsweb-markup

Index: FileEmulationUnix.java
===================================================================
package yaffs2.utils.emulation;

import java.io.*;

import static yaffs2.port.yaffsfs_H.*;

public abstract class FileEmulationUnix
{
/**
*
* @param path
* @param pathIndex
* @param oflag Ignored. Access mode is always "rw".
* @param permission Ignored.
* @return
*/
public static RandomAccessFile open(String path, int oflag, int permission)
{
return open(path, oflag);
}

public static RandomAccessFile open(String path, int oflag)
{
try
{
return new RandomAccessFile(path, "rw");
}
catch (FileNotFoundException e)
{
throw new HiddenException();
}
}

public static int write(RandomAccessFile fildes, byte[] buf, int bufIndex, int nbyte)
{
try
{
fildes.write(buf, bufIndex, nbyte);
}
catch(IOException e)
{
throw new HiddenException();
}

return nbyte;
}

public static int read(RandomAccessFile fildes, byte[] buf, int bufIndex, int nbyte)
{
try
{
return fildes.read(buf, bufIndex, nbyte);
}
catch(IOException e)
{
throw new HiddenException();
}
}

public static void close(RandomAccessFile f)
{
try
{
f.close();
}
catch(IOException e)
{
throw new HiddenException();
}
}

public static int lseek(RandomAccessFile fildes, int offset, int whence)
{
try
{
fildes.seek(((whence == SEEK_END) ? fildes.length() :
((whence == SEEK_CUR) ? fildes.getFilePointer() : +
0)) + offset);

return (int)fildes.getFilePointer();
}
catch(IOException e)
{
throw new HiddenException();
}
}
public static byte[] IntToByteArray(int value) { byte[] result = new byte[yaffs2.utils.Constants.SIZEOF_INT]; yaffs2.utils.Utils.writeIntToByteArray(result, 0, value); return result; } } 1.1 jop/java/pc/src/yaffs2/utils/emulation/HiddenException.java http://www.opencores.org/cvsweb.shtml/jop/java/pc/src/yaffs2/utils/emulation/HiddenException.java?rev=1.1&content-type=text/x-cvsweb-markup Index: HiddenException.java =================================================================== package yaffs2.utils.emulation; public class HiddenException extends RuntimeException { } 1.1 jop/java/pc/src/yaffs2/utils/emulation/RamEmulationUnix.java http://www.opencores.org/cvsweb.shtml/jop/java/pc/src/yaffs2/utils/emulation/RamEmulationUnix.java?rev=1.1&content-type=text/x-cvsweb-markup Index: RamEmulationUnix.java =================================================================== package yaffs2.utils.emulation; import yaffs2.port.yramdisk_Block; import yaffs2.port.yramdisk_Page; public abstract class RamEmulationUnix { public static void memset(yramdisk_Block s, byte c) { for (int i = 0; i < s.page.length; i++) memset(s.page[i], c); } public static void memset(yramdisk_Page s, byte c) { yaffs2.utils.Unix.memset(s.data, 0, c, s.data.length); } } 1.1 jop/java/pc/src/yaffs2/utils/emulation/Utils.java http://www.opencores.org/cvsweb.shtml/jop/java/pc/src/yaffs2/utils/emulation/Utils.java?rev=1.1&content-type=text/x-cvsweb-markup Index: Utils.java =================================================================== package yaffs2.utils.emulation; import static yaffs2.utils.Unix.*; /** * These methods should not be used if you want to avoid garbage collection. * */ public abstract class Utils { public static String byteArrayToString(byte[] array, int index) { int length = strlen(array, index); StringBuffer result = new StringBuffer(length); result.setLength(length); for (int i = 0; i < length; i++) result.setCharAt(i, (char)(array[index+i] & 0xff)); return result.toString(); } /** * XXX A terminating 0 is appended. * @param string * @return */ public static byte[] StringToByteArray(String string) { byte[] result = new byte[string.length()+1]; for (int i = 0; i < string.length(); i++) result[i] = (byte)string.charAt(i); result[result.length-1] = 0; return result; } /** * XXX No terminating 0 is appended. * @param string * @param array * @param offset * @return */ public static int StringToByteArraySafe(String string, byte[] array, int offset) { for (int i = 0; i < string.length() && offset+i < array.length; i++) array[offset+i] = (byte)string.charAt(i); return Math.min(offset+string.length(), array.length-1); } }