From ebce970d7fa5aac9c4dea5381784441e155dbb64 Mon Sep 17 00:00:00 2001
From: Michael Koch <mkoch@gcc.gnu.org>
Date: Wed, 20 Apr 2005 06:05:04 +0000
Subject: [multiple changes]

2005-04-20  Sven de Marothy  <sven@physto.se>

	* java/nio/ByteBufferImpl.java:
	(putChar): Inlined for speed.
	(put, get): Bulk methods can use arraycopy.
	* java/nio/CharBufferImpl.java:
	(put, get): Bulk methods can use arraycopy.

2005-04-20  Jeroen Frijters  <jeroen@frijters.net>

	* java/nio/ByteBufferImpl.java (get(), put(byte)): Inlined checks
	and field updates.
	* java/nio/CharBufferImpl.java
	(CharBufferImpl(CharBufferImpl)): Copy array_offset field.
	(get(), put(char)): Inlined checks and field updates. Fixed to
	take array_offset into account.
	(get(int), put(int, char)): Fixed to take array_offset into account.

From-SVN: r98445
---
 libjava/java/nio/ByteBufferImpl.java | 66 ++++++++++++++++++++++++++++++------
 1 file changed, 55 insertions(+), 11 deletions(-)

(limited to 'libjava/java/nio/ByteBufferImpl.java')

diff --git a/libjava/java/nio/ByteBufferImpl.java b/libjava/java/nio/ByteBufferImpl.java
index d9f24627de0..47961700a00 100644
--- a/libjava/java/nio/ByteBufferImpl.java
+++ b/libjava/java/nio/ByteBufferImpl.java
@@ -144,13 +144,43 @@ final class ByteBufferImpl extends ByteBuffer
    */
   public byte get ()
   {
-    checkForUnderflow();
+    if (pos >= limit)
+        throw new BufferUnderflowException();
 
-    byte result = backing_buffer [position () + array_offset];
-    position (position () + 1);
-    return result;
+    return backing_buffer [(pos++) + array_offset];
   }
-  
+
+  /**
+   * Bulk get
+   */
+  public ByteBuffer get (byte[] dst, int offset, int length)
+  {
+    checkArraySize(dst.length, offset, length);
+    if ( (limit - pos) < length) // check for overflow
+      throw new BufferUnderflowException();
+
+    System.arraycopy(backing_buffer, pos + array_offset, 
+		     dst, offset, length);
+    pos += length;
+
+    return this;
+  }
+
+  /**
+   * Relative bulk put(), overloads the ByteBuffer impl.
+   */
+  public ByteBuffer put (byte[] src, int offset, int length)
+  {
+    if ( (limit - pos) < length) // check for overflow
+      throw new BufferOverflowException();
+    checkArraySize(src.length, offset, length);
+
+    System.arraycopy(src, offset, backing_buffer, pos + array_offset, length);
+    pos += length;
+
+    return this;
+  }
+
   /**
    * Relative put method. Writes <code>value</code> to the next position
    * in the buffer.
@@ -161,12 +191,12 @@ final class ByteBufferImpl extends ByteBuffer
    */
   public ByteBuffer put (byte value)
   {
-    checkIfReadOnly();
-    checkForOverflow();
+    if (readOnly)
+        throw new ReadOnlyBufferException();
+    if (pos >= limit)
+        throw new BufferOverflowException();
 
-    int pos = position();
-    backing_buffer [pos + array_offset] = value;
-    position (pos + 1);
+    backing_buffer [(pos++) + array_offset] = value;
     return this;
   }
   
@@ -208,7 +238,21 @@ final class ByteBufferImpl extends ByteBuffer
   
   public ByteBuffer putChar (char value)
   {
-    ByteBufferHelper.putChar(this, value, order());
+    if (readOnly)
+      throw new ReadOnlyBufferException ();
+    if ( (limit-pos) < 2)
+      throw new BufferOverflowException();
+
+    if (endian == ByteOrder.LITTLE_ENDIAN)
+      {
+        backing_buffer [(pos++) + array_offset] = (byte)(value&0xFF);
+        backing_buffer [(pos++) + array_offset] = (byte)(value>>8);
+      }
+    else
+      {
+        backing_buffer [(pos++) + array_offset] = (byte)(value>>8);
+        backing_buffer [(pos++) + array_offset] = (byte)(value&0xFF);
+      }
     return this;
   }
   
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