2003-02-11 Michael Koch <konqueror@gmx.de>

	* java/nio/Buffer.java
	(cap, lim, pos, mark): Made private
	(Buffer): Added package private constructor.
	* java/nio/ByteBuffer.java
	(ByteBuffer): Implements Cloneable.
	(offset): New member variable.
	(readOnly): New member variable.
	(backing_buffer): New member variable.
	(allocateDirect): Throw exception and tell that direct buffers are
	not supported yet, documentation added.
	(allocate): Documentation added.
	(wrap): Documentation added.
	(ByteBuffer): New constructor.
	(hasArray): New method.
	(array): New method.
	(arrayOffset): New method.
	(get): Documentation added.
	(put): Documentation added.
	* java/nio/CharBuffer.java
	(CharBuffer): New constructor.
	(compareTo): Don't access member variables of Buffer directly.
	* java/nio/DoubleBuffer.java
	(allocateDirect): Throw exception and tell that direct buffers are
	not supported yet.
	* java/nio/FloatBuffer.java
	(allocateDirect): Throw exception and tell that direct buffers are
	not supported yet.
	* java/nio/IntBuffer.java
	(allocateDirect): Throw exception and tell that direct buffers are
	not supported yet.
	* java/nio/LongBuffer.java
	(allocateDirect): Throw exception and tell that direct buffers are
	not supported yet.
	* java/nio/MappedByteBuffer.java
	(MappedByteBuffer): New method.
	(force): New method.
	(isLoaded): New method.
	(load): New method.
	* java/nio/ShortBuffer.java
	(allocateDirect): Throw exception and tell that direct buffers are
	not supported yet.

From-SVN: r62685

1 files changed, 27 insertions, 5 deletions

diff --git a/libjava/java/nio/Buffer.java b/libjava/java/nio/Buffer.java
index 9474fb4..7d291be 100644
--- a/libjava/java/nio/Buffer.java
+++ b/libjava/java/nio/Buffer.java
@@ -39,11 +39,33 @@ package java.nio;
 
 public abstract class Buffer
 {
-  int cap = 0;
-  int limit = 0;
-  int pos = 0;
-  int mark = -1;
-
+  private int cap = 0;
+  private int limit = 0;
+  private int pos = 0;
+  private int mark = -1;
+
+  // Creates a new Buffer.
+  //
+  // Should be package private.
+  //
+  Buffer (int capacity, int limit, int position, int mark)
+  {
+    if (capacity < 0)
+      throw new IllegalArgumentException ();
+    
+    cap = capacity;
+    limit (limit);
+    position (position);
+    
+    if (mark > 0)
+    {
+      if (mark > pos)
+        throw new IllegalArgumentException ();
+      
+      this.mark = mark;
+    }
+  }
+  
   /**
    * Retrieves the capacity of the buffer.
    */