2004-04-23 Michael Koch <konqueror@gmx.de>

* gnu/java/nio/channels/FileChannelImpl.java
	(SET, CUR): Unused, removed.
	(read): Implement here directly.
	(implRead): Removed.
	(write): Implement here directly.
	(implWrite): Removed.

From-SVN: r81079
This commit is contained in:
Michael Koch
2004-04-23 06:56:34 +00:00
committed by Michael Koch
parent 5d837a584f
commit 87939d70f8
2 changed files with 38 additions and 44 deletions
@@ -60,13 +60,8 @@ import java.nio.channels.WritableByteChannel;
* Instances of this class are created by invoking getChannel
* Upon a Input/Output/RandomAccessFile object.
*/
public final class FileChannelImpl extends FileChannel
{
// These are WHENCE values for seek.
static final int SET = 0;
static final int CUR = 1;
// These are mode values for open().
public static final int READ = 1;
public static final int WRITE = 2;
@@ -138,24 +133,6 @@ public final class FileChannelImpl extends FileChannel
protected native void implCloseChannel() throws IOException;
public int read (ByteBuffer dst) throws IOException
{
return implRead (dst);
}
public int read (ByteBuffer dst, long position)
throws IOException
{
if (position < 0)
throw new IllegalArgumentException ();
long oldPosition = implPosition ();
position (position);
int result = implRead (dst);
position (oldPosition);
return result;
}
private int implRead (ByteBuffer dst) throws IOException
{
int result;
byte[] buffer = new byte [dst.remaining ()];
@@ -167,7 +144,20 @@ public final class FileChannelImpl extends FileChannel
return result;
}
public int read (ByteBuffer dst, long position)
throws IOException
{
if (position < 0)
throw new IllegalArgumentException ();
long oldPosition = implPosition ();
position (position);
int result = read(dst);
position (oldPosition);
return result;
}
public native int read ()
throws IOException;
@@ -189,7 +179,20 @@ public final class FileChannelImpl extends FileChannel
public int write (ByteBuffer src) throws IOException
{
return implWrite (src);
int len = src.remaining ();
if (src.hasArray())
{
byte[] buffer = src.array();
write(buffer, src.arrayOffset() + src.position(), len);
}
else
{
// Use a more efficient native method! FIXME!
byte[] buffer = new byte [len];
src.get (buffer, 0, len);
write (buffer, 0, len);
}
return len;
}
public int write (ByteBuffer src, long position)
@@ -209,30 +212,12 @@ public final class FileChannelImpl extends FileChannel
oldPosition = implPosition ();
seek (position);
result = implWrite (src);
result = write(src);
seek (oldPosition);
return result;
}
private int implWrite (ByteBuffer src) throws IOException
{
int len = src.remaining ();
if (src.hasArray())
{
byte[] buffer = src.array();
write(buffer, src.arrayOffset() + src.position(), len);
}
else
{
// Use a more efficient native method! FIXME!
byte[] buffer = new byte [len];
src.get (buffer, 0, len);
write (buffer, 0, len);
}
return len;
}
public native void write (byte[] buffer, int offset, int length)
throws IOException;