[kaffe] CVS kaffe (guilhem): NIO: added missing file.

Kaffe CVS Kaffe Mailing List <kaffe@kaffe.org>
Sun Sep 28 13:24:02 2003


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 <guilhem@kaffe.org>
 
+	* libraries/javalib/java/nio/ByteBufferHelper.java: added missing
+	file.
+
+2003-09-28  Guilhem Lavaux <guilhem@kaffe.org>
+
 	* 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 <konqueror@gmx.de>
+ */
+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