PatchSet 4073
Date: 2003/09/28 20:07:15
Author: guilhem
Branch: HEAD
Tag: (none)
Log:
NIO: added missing file.
Members:
ChangeLog:1.1668->1.1669
libraries/javalib/java/nio/ByteBufferHelper.java:INITIAL->1.1
Index: kaffe/ChangeLog
diff -u kaffe/ChangeLog:1.1668 kaffe/ChangeLog:1.1669
--- kaffe/ChangeLog:1.1668 Sun Sep 28 19:53:51 2003
+++ kaffe/ChangeLog Sun Sep 28 20:07:15 2003
@@ -1,5 +1,10 @@
2003-09-28 Guilhem Lavaux <[EMAIL PROTECTED]>
+ * libraries/javalib/java/nio/ByteBufferHelper.java: added missing
+ file.
+
+2003-09-28 Guilhem Lavaux <[EMAIL PROTECTED]>
+
* libraries/javalib/gnu/java/net/PlainDatagramSocketImpl.java,
libraries/javalib/gnu/java/net/PlainSocketImpl.java,
libraries/javalib/gnu/java/net/SocketInputStream.java,
===================================================================
Checking out kaffe/libraries/javalib/java/nio/ByteBufferHelper.java
RCS: /home/cvs/kaffe/kaffe/libraries/javalib/java/nio/ByteBufferHelper.java,v
VERS: 1.1
***************
--- /dev/null Sun Aug 4 19:57:58 2002
+++ kaffe/libraries/javalib/java/nio/ByteBufferHelper.java Sun Sep 28 20:09:43
2003
@@ -0,0 +1,437 @@
+/* ByteBufferImpl.java --
+ Copyright (C) 2003 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library. Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module. An independent module is a module which is not derived from
+or based on this library. If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so. If you do not wish to do so, delete this
+exception statement from your version. */
+
+package java.nio;
+
+/**
+ * @author Michael Koch <[EMAIL PROTECTED]>
+ */
+final class ByteBufferHelper
+{
+ private static final void checkRemainingForRead (ByteBuffer buffer, int bytes)
+ {
+ if (buffer.remaining() < bytes)
+ throw new BufferUnderflowException();
+ }
+
+ private static final void checkRemainingForWrite (ByteBuffer buffer, int bytes)
+ {
+ if (buffer.remaining() < bytes)
+ throw new BufferOverflowException();
+ }
+
+ private static final void checkAvailableForRead (ByteBuffer buffer,
+ int index, int bytes)
+ {
+ if (buffer.limit() < (index + bytes))
+ throw new BufferUnderflowException();
+ }
+
+ private static final void checkAvailableForWrite (ByteBuffer buffer,
+ int index, int bytes)
+ {
+ if (buffer.limit() < (index + bytes))
+ throw new BufferOverflowException();
+ }
+
+ public static final char getChar (ByteBuffer buffer)
+ {
+ checkRemainingForRead (buffer, 2);
+
+ if (buffer.order() == ByteOrder.LITTLE_ENDIAN)
+ {
+ return (char) ((buffer.get() & 0xff)
+ + ((buffer.get() & 0xff) << 8));
+ }
+
+ return (char) (((buffer.get() & 0xff) << 8)
+ + (buffer.get() & 0xff));
+ }
+
+ public static final ByteBuffer putChar (ByteBuffer buffer, char value)
+ {
+ checkRemainingForWrite (buffer, 2);
+
+ if (buffer.order() == ByteOrder.LITTLE_ENDIAN)
+ {
+ buffer.put ((byte) (value & 0x00ff));
+ buffer.put ((byte) ((value & 0xff00) >> 8));
+ }
+ else
+ {
+ buffer.put ((byte) ((value & 0xff00) >> 8));
+ buffer.put ((byte) (value & 0x00ff));
+ }
+
+ return buffer;
+ }
+
+ public static final char getChar (ByteBuffer buffer, int index)
+ {
+ checkAvailableForRead (buffer, index, 2);
+
+ if (buffer.order() == ByteOrder.LITTLE_ENDIAN)
+ {
+ return (char) ((buffer.get (index) & 0xff)
+ + ((buffer.get (index + 1) & 0xff) << 8));
+ }
+
+ return (char) (((buffer.get (index) & 0xff) << 8)
+ + (buffer.get (index + 1) & 0xff));
+ }
+
+ public static final ByteBuffer putChar (ByteBuffer buffer, int index,
+ char value)
+ {
+ checkAvailableForWrite (buffer, index, 2);
+
+ if (buffer.order() == ByteOrder.LITTLE_ENDIAN)
+ {
+ buffer.put (index, (byte) (value & 0xff00));
+ buffer.put (index + 1, (byte) ((value & 0x00ff) >> 8));
+ }
+ else
+ {
+ buffer.put (index, (byte) ((value & 0xff00) >> 8));
+ buffer.put (index + 1, (byte) (value & 0x00ff));
+ }
+
+ return buffer;
+ }
+
+ public static final short getShort (ByteBuffer buffer)
+ {
+ checkRemainingForRead (buffer, 2);
+
+ if (buffer.order() == ByteOrder.LITTLE_ENDIAN)
+ {
+ return (short) ((buffer.get() & 0xff)
+ + ((buffer.get() & 0xff) << 8));
+ }
+
+ return (short) (((buffer.get() & 0xff) << 8)
+ + (buffer.get() & 0xff));
+ }
+
+ public static final ByteBuffer putShort (ByteBuffer buffer, short value)
+ {
+ checkRemainingForWrite (buffer, 2);
+
+ if (buffer.order() == ByteOrder.LITTLE_ENDIAN)
+ {
+ buffer.put ((byte) (value & 0x00ff));
+ buffer.put ((byte) ((value & 0xff00) >> 8));
+ }
+ else
+ {
+ buffer.put ((byte) ((value & 0xff00) >> 8));
+ buffer.put ((byte) (value & 0x00ff));
+ }
+
+ return buffer;
+ }
+
+ public static final short getShort (ByteBuffer buffer, int index)
+ {
+ checkAvailableForRead (buffer, index, 2);
+
+ if (buffer.order() == ByteOrder.LITTLE_ENDIAN)
+ {
+ return (short) ((buffer.get (index) & 0xff)
+ + ((buffer.get (index + 1) & 0xff) << 8));
+ }
+
+ return (short) (((buffer.get (index) & 0xff) << 8)
+ + (buffer.get (index + 1) & 0xff));
+ }
+
+ public static final ByteBuffer putShort (ByteBuffer buffer, int index,
+ short value)
+ {
+ checkAvailableForWrite (buffer, index, 2);
+
+ if (buffer.order() == ByteOrder.LITTLE_ENDIAN)
+ {
+ buffer.put (index, (byte) (value & 0x00ff));
+ buffer.put (index + 1, (byte) ((value & 0xff00) >> 8));
+ }
+ else
+ {
+ buffer.put (index, (byte) ((value & 0xff00) >> 8));
+ buffer.put (index + 1, (byte) (value & 0x00ff));
+ }
+
+ return buffer;
+ }
+
+ public static final int getInt (ByteBuffer buffer)
+ {
+ checkRemainingForRead (buffer, 4);
+
+ if (buffer.order() == ByteOrder.LITTLE_ENDIAN)
+ {
+ return (int) ((buffer.get() & 0xff)
+ + ((buffer.get() & 0xff) << 8)
+ + ((buffer.get() & 0xff) << 16)
+ + ((buffer.get() & 0xff) << 24));
+ }
+
+ return (int) (((buffer.get() & 0xff) << 24)
+ + ((buffer.get() & 0xff) << 16)
+ + ((buffer.get() & 0xff) << 8)
+ + (buffer.get() & 0xff));
+ }
+
+ public static final ByteBuffer putInt (ByteBuffer buffer, int value)
+ {
+ checkRemainingForWrite (buffer, 4);
+
+ if (buffer.order() == ByteOrder.LITTLE_ENDIAN)
+ {
+ buffer.put ((byte) (value & 0x000000ff));
+ buffer.put ((byte) ((value & 0x0000ff00) >> 8));
+ buffer.put ((byte) ((value & 0x00ff0000) >> 16));
+ buffer.put ((byte) ((value & 0xff000000) >> 24));
+ }
+ else
+ {
+ buffer.put ((byte) ((value & 0xff000000) >> 24));
+ buffer.put ((byte) ((value & 0x00ff0000) >> 16));
+ buffer.put ((byte) ((value & 0x0000ff00) >> 8));
+ buffer.put ((byte) (value & 0x000000ff));
+ }
+
+ return buffer;
+ }
+
+ public static final int getInt (ByteBuffer buffer, int index)
+ {
+ checkAvailableForRead (buffer, index, 4);
+
+ if (buffer.order() == ByteOrder.LITTLE_ENDIAN)
+ {
+ return (int) ((buffer.get (index) & 0xff))
+ + ((buffer.get (index + 1) & 0xff) << 8)
+ + ((buffer.get (index + 2) & 0xff) << 16)
+ + ((buffer.get (index + 3) & 0xff) << 24);
+ }
+
+ return (int) (((buffer.get (index) & 0xff) << 24)
+ + ((buffer.get (index + 1) & 0xff) << 16)
+ + ((buffer.get (index + 2) & 0xff) << 8)
+ + (buffer.get (index + 3) & 0xff));
+ }
+
+ public static final ByteBuffer putInt (ByteBuffer buffer, int index,
+ int value)
+ {
+ checkAvailableForWrite (buffer, index, 4);
+
+ if (buffer.order() == ByteOrder.LITTLE_ENDIAN)
+ {
+ buffer.put (index, (byte) (value & 0x000000ff));
+ buffer.put (index + 1, (byte) ((value & 0x0000ff00) >> 8));
+ buffer.put (index + 2, (byte) ((value & 0x00ff0000) >> 16));
+ buffer.put (index + 3, (byte) ((value & 0xff000000) >> 24));
+ }
+ else
+ {
+ buffer.put (index, (byte) ((value & 0xff000000) >> 24));
+ buffer.put (index + 1, (byte) ((value & 0x00ff0000) >> 16));
+ buffer.put (index + 2, (byte) ((value & 0x0000ff00) >> 8));
+ buffer.put (index + 3, (byte) (value & 0x000000ff));
+ }
+
+ return buffer;
+ }
+
+ public static final long getLong (ByteBuffer buffer)
+ {
+ checkRemainingForRead (buffer, 8);
+
+ if (buffer.order() == ByteOrder.LITTLE_ENDIAN)
+ {
+ return (long) (((buffer.get() & 0xff))
+ + ((buffer.get() & 0xff) << 8)
+ + ((buffer.get() & 0xff) << 16)
+ + ((buffer.get() & 0xff) << 24)
+ + ((buffer.get() & 0xffL) << 32)
+ + ((buffer.get() & 0xffL) << 40)
+ + ((buffer.get() & 0xffL) << 48)
+ + ((buffer.get() & 0xffL) << 56));
+ }
+
+ return (long) (((buffer.get() & 0xffL) << 56)
+ + ((buffer.get() & 0xffL) << 48)
+ + ((buffer.get() & 0xffL) << 40)
+ + ((buffer.get() & 0xffL) << 32)
+ + ((buffer.get() & 0xff) << 24)
+ + ((buffer.get() & 0xff) << 16)
+ + ((buffer.get() & 0xff) << 8)
+ + (buffer.get() & 0xff));
+ }
+
+ public static final ByteBuffer putLong (ByteBuffer buffer, long value)
+ {
+ checkRemainingForWrite (buffer, 8);
+
+ if (buffer.order() == ByteOrder.LITTLE_ENDIAN)
+ {
+ buffer.put ((byte) (((int) value) & 0xff));
+ buffer.put ((byte) (((int) (value >> 8)) & 0xff));
+ buffer.put ((byte) (((int) (value >> 16)) & 0xff));
+ buffer.put ((byte) (((int) (value >> 24)) & 0xff));
+ buffer.put ((byte) (((int) (value >> 32)) & 0xff));
+ buffer.put ((byte) (((int) (value >> 40)) & 0xff));
+ buffer.put ((byte) (((int) (value >> 48)) & 0xff));
+ buffer.put ((byte) (((int) (value >> 56)) & 0xff));
+ }
+ else
+ {
+ buffer.put ((byte) (((int) (value >> 56)) & 0xff));
+ buffer.put ((byte) (((int) (value >> 48)) & 0xff));
+ buffer.put ((byte) (((int) (value >> 40)) & 0xff));
+ buffer.put ((byte) (((int) (value >> 32)) & 0xff));
+ buffer.put ((byte) (((int) (value >> 24)) & 0xff));
+ buffer.put ((byte) (((int) (value >> 16)) & 0xff));
+ buffer.put ((byte) (((int) (value >> 8)) & 0xff));
+ buffer.put ((byte) (((int) value) & 0xff));
+ }
+
+ return buffer;
+ }
+
+ public static final long getLong (ByteBuffer buffer, int index)
+ {
+ checkAvailableForRead (buffer, index, 8);
+
+ if (buffer.order() == ByteOrder.LITTLE_ENDIAN)
+ {
+ return (long) ((buffer.get (index) & 0xff)
+ + ((buffer.get (index + 1) & 0xff) << 8)
+ + ((buffer.get (index + 2) & 0xff) << 16)
+ + ((buffer.get (index + 3) & 0xff) << 24)
+ + ((buffer.get (index + 4) & 0xffL) << 32)
+ + ((buffer.get (index + 5) & 0xffL) << 40)
+ + ((buffer.get (index + 6) & 0xffL) << 48)
+ + ((buffer.get (index + 7) & 0xffL) << 56));
+ }
+
+ return (long) (((buffer.get (index) & 0xffL) << 56)
+ + ((buffer.get (index + 1) & 0xffL) << 48)
+ + ((buffer.get (index + 2) & 0xffL) << 40)
+ + ((buffer.get (index + 3) & 0xffL) << 32)
+ + ((buffer.get (index + 4) & 0xff) << 24)
+ + ((buffer.get (index + 5) & 0xff) << 16)
+ + ((buffer.get (index + 6) & 0xff) << 8)
+ + (buffer.get (index + 7) & 0xff));
+ }
+
+ public static final ByteBuffer putLong (ByteBuffer buffer, int index,
+ long value)
+ {
+ checkAvailableForWrite (buffer, index, 8);
+
+ if (buffer.order() == ByteOrder.LITTLE_ENDIAN)
+ {
+ buffer.put (index, (byte) (((int) value) & 0xff));
+ buffer.put (index + 1, (byte) (((int) (value >> 8)) & 0xff));
+ buffer.put (index + 2, (byte) (((int) (value >> 16)) & 0xff));
+ buffer.put (index + 3, (byte) (((int) (value >> 24)) & 0xff));
+ buffer.put (index + 4, (byte) (((int) (value >> 32)) & 0xff));
+ buffer.put (index + 5, (byte) (((int) (value >> 40)) & 0xff));
+ buffer.put (index + 6, (byte) (((int) (value >> 48)) & 0xff));
+ buffer.put (index + 7, (byte) (((int) (value >> 56)) & 0xff));
+ }
+ else
+ {
+ buffer.put (index, (byte) (((int) (value >> 56)) & 0xff));
+ buffer.put (index + 1, (byte) (((int) (value >> 48)) & 0xff));
+ buffer.put (index + 2, (byte) (((int) (value >> 40)) & 0xff));
+ buffer.put (index + 3, (byte) (((int) (value >> 32)) & 0xff));
+ buffer.put (index + 4, (byte) (((int) (value >> 24)) & 0xff));
+ buffer.put (index + 5, (byte) (((int) (value >> 16)) & 0xff));
+ buffer.put (index + 6, (byte) (((int) (value >> 8)) & 0xff));
+ buffer.put (index + 7, (byte) (((int) value) & 0xff));
+ }
+
+ return buffer;
+ }
+
+ public static final float getFloat (ByteBuffer buffer)
+ {
+ return Float.intBitsToFloat (getInt (buffer));
+ }
+
+ public static final ByteBuffer putFloat (ByteBuffer buffer, float value)
+ {
+ return putInt (buffer, Float.floatToIntBits (value));
+ }
+
+ public static final float getFloat (ByteBuffer buffer, int index)
+ {
+ return Float.intBitsToFloat (getInt (buffer, index));
+ }
+
+ public static final ByteBuffer putFloat (ByteBuffer buffer, int index,
+ float value)
+ {
+ return putInt (buffer, index, Float.floatToIntBits (value));
+ }
+
+ public static final double getDouble (ByteBuffer buffer)
+ {
+ return Double.longBitsToDouble (getLong (buffer));
+ }
+
+ public static final ByteBuffer putDouble (ByteBuffer buffer, double value)
+ {
+ return putLong (buffer, Double.doubleToLongBits (value));
+ }
+
+ public static final double getDouble (ByteBuffer buffer, int index)
+ {
+ return Double.longBitsToDouble (getLong (buffer, index));
+ }
+
+ public static final ByteBuffer putDouble (ByteBuffer buffer, int index,
+ double value)
+ {
+ return putLong (buffer, index, Double.doubleToLongBits (value));
+ }
+
+} // ByteBufferHelper
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