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-rw-r--r--libjava/gnu/java/nio/ShortBufferImpl.java126
1 files changed, 48 insertions, 78 deletions
diff --git a/libjava/gnu/java/nio/ShortBufferImpl.java b/libjava/gnu/java/nio/ShortBufferImpl.java
index bccb2d0f65a..e4c9a060539 100644
--- a/libjava/gnu/java/nio/ShortBufferImpl.java
+++ b/libjava/gnu/java/nio/ShortBufferImpl.java
@@ -38,100 +38,66 @@ exception statement from your version. */
package gnu.java.nio;
import java.nio.ByteBuffer;
-import java.nio.CharBuffer;
-import java.nio.DoubleBuffer;
-import java.nio.FloatBuffer;
-import java.nio.IntBuffer;
-import java.nio.LongBuffer;
+import java.nio.ByteOrder;
import java.nio.ShortBuffer;
+import java.nio.ReadOnlyBufferException;
+/**
+ * This is a Heap memory implementation
+ */
public final class ShortBufferImpl extends ShortBuffer
{
- private int array_offset;
- private boolean ro;
+ private boolean readOnly;
public ShortBufferImpl(int cap, int off, int lim)
{
- this.backing_buffer = new short[cap];
- this.cap = cap ;
- this.limit(lim);
- this.position(off);
+ super (cap, lim, off, 0);
+ this.backing_buffer = new short [cap];
+ readOnly = false;
}
- public ShortBufferImpl(short[] array, int off, int lim)
+ public ShortBufferImpl(short[] array, int offset, int length)
{
+ super (array.length, length, offset, 0);
this.backing_buffer = array;
- this.cap = array.length;
- this.limit(lim);
- this.position(off);
+ readOnly = false;
}
public ShortBufferImpl(ShortBufferImpl copy)
{
+ super (copy.capacity (), copy.limit (), copy.position (), 0);
backing_buffer = copy.backing_buffer;
- ro = copy.ro;
- limit(copy.limit());
- position(copy.position());
+ readOnly = copy.isReadOnly ();
}
- void inc_pos(int a)
+ private static native short[] nio_cast (byte[] copy);
+
+ ShortBufferImpl (byte[] copy)
{
- position(position() + a);
+ super (copy.length, copy.length, 0, 0);
+ this.backing_buffer = copy != null ? nio_cast (copy) : null;
+ readOnly = false;
+ }
+
+ private static native byte nio_get_Byte (ShortBufferImpl b, int index, int limit);
+
+ private static native void nio_put_Byte (ShortBufferImpl b, int index, int limit, byte value);
+
+ public ByteBuffer asByteBuffer ()
+ {
+ ByteBufferImpl res = new ByteBufferImpl (backing_buffer);
+ res.limit ((limit () * 1) / 2);
+ return res;
}
-
- ShortBufferImpl(byte[] copy) { this.backing_buffer = copy != null ? nio_cast(copy) : null; }
- private static native byte nio_get_Byte(ShortBufferImpl b, int index, int limit);
- private static native void nio_put_Byte(ShortBufferImpl b, int index, int limit, byte value);
- public ByteBuffer asByteBuffer() { ByteBufferImpl res = new ByteBufferImpl(backing_buffer); res.limit((limit()*1)/2); return res; }
-
- ShortBufferImpl(char[] copy) { this.backing_buffer = copy != null ? nio_cast(copy) : null; }
- private static native char nio_get_Char(ShortBufferImpl b, int index, int limit);
- private static native void nio_put_Char(ShortBufferImpl b, int index, int limit, char value);
- public CharBuffer asCharBuffer() { CharBufferImpl res = new CharBufferImpl(backing_buffer); res.limit((limit()*2)/2); return res; }
-
- ShortBufferImpl(short[] copy) { this.backing_buffer = copy != null ? nio_cast(copy) : null; }
- private static native short nio_get_Short(ShortBufferImpl b, int index, int limit);
- private static native void nio_put_Short(ShortBufferImpl b, int index, int limit, short value);
- public ShortBuffer asShortBuffer() { ShortBufferImpl res = new ShortBufferImpl(backing_buffer); res.limit((limit()*2)/2); return res; }
-
- ShortBufferImpl(int[] copy) { this.backing_buffer = copy != null ? nio_cast(copy) : null; }
- private static native int nio_get_Int(ShortBufferImpl b, int index, int limit);
- private static native void nio_put_Int(ShortBufferImpl b, int index, int limit, int value);
- public IntBuffer asIntBuffer() { IntBufferImpl res = new IntBufferImpl(backing_buffer); res.limit((limit()*4)/2); return res; }
-
- ShortBufferImpl(long[] copy) { this.backing_buffer = copy != null ? nio_cast(copy) : null; }
- private static native long nio_get_Long(ShortBufferImpl b, int index, int limit);
- private static native void nio_put_Long(ShortBufferImpl b, int index, int limit, long value);
- public LongBuffer asLongBuffer() { LongBufferImpl res = new LongBufferImpl(backing_buffer); res.limit((limit()*8)/2); return res; }
-
- ShortBufferImpl(float[] copy) { this.backing_buffer = copy != null ? nio_cast(copy) : null; }
- private static native float nio_get_Float(ShortBufferImpl b, int index, int limit);
- private static native void nio_put_Float(ShortBufferImpl b, int index, int limit, float value);
- public FloatBuffer asFloatBuffer() { FloatBufferImpl res = new FloatBufferImpl(backing_buffer); res.limit((limit()*4)/2); return res; }
-
- ShortBufferImpl(double[] copy) { this.backing_buffer = copy != null ? nio_cast(copy) : null; }
- private static native double nio_get_Double(ShortBufferImpl b, int index, int limit);
- private static native void nio_put_Double(ShortBufferImpl b, int index, int limit, double value);
- public DoubleBuffer asDoubleBuffer() { DoubleBufferImpl res = new DoubleBufferImpl(backing_buffer); res.limit((limit()*8)/2); return res; }
-
- private static native short[] nio_cast(byte[]copy);
- private static native short[] nio_cast(char[]copy);
- private static native short[] nio_cast(short[]copy);
- private static native short[] nio_cast(long[]copy);
- private static native short[] nio_cast(int[]copy);
- private static native short[] nio_cast(float[]copy);
- private static native short[] nio_cast(double[]copy);
public boolean isReadOnly()
{
- return ro;
+ return readOnly;
}
public ShortBuffer slice()
{
- ShortBufferImpl a = new ShortBufferImpl(this);
- a.array_offset = position();
- return a;
+ return new ShortBufferImpl (this);
}
public ShortBuffer duplicate()
@@ -141,9 +107,9 @@ public final class ShortBufferImpl extends ShortBuffer
public ShortBuffer asReadOnlyBuffer()
{
- ShortBufferImpl a = new ShortBufferImpl(this);
- a.ro = true;
- return a;
+ ShortBufferImpl result = new ShortBufferImpl (this);
+ result.readOnly = true;
+ return result;
}
public ShortBuffer compact()
@@ -153,7 +119,7 @@ public final class ShortBufferImpl extends ShortBuffer
public boolean isDirect()
{
- return backing_buffer != null;
+ return false;
}
final public short get()
@@ -165,6 +131,9 @@ public final class ShortBufferImpl extends ShortBuffer
final public ShortBuffer put(short b)
{
+ if (readOnly)
+ throw new ReadOnlyBufferException ();
+
backing_buffer[position()] = b;
position(position()+1);
return this;
@@ -177,14 +146,15 @@ public final class ShortBufferImpl extends ShortBuffer
final public ShortBuffer put(int index, short b)
{
+ if (readOnly)
+ throw new ReadOnlyBufferException ();
+
backing_buffer[index] = b;
return this;
}
-
- final public char getChar() { char a = nio_get_Char(this, position(), limit()); inc_pos(2); return a; } final public ShortBuffer putChar(char value) { nio_put_Char(this, position(), limit(), value); inc_pos(2); return this; } final public char getChar(int index) { char a = nio_get_Char(this, index, limit()); return a; } final public ShortBuffer putChar(int index, char value) { nio_put_Char(this, index, limit(), value); return this; };
- final public short getShort() { return get(); } final public ShortBuffer putShort(short value) { return put(value); } final public short getShort(int index) { return get(index); } final public ShortBuffer putShort(int index, short value) { return put(index, value); };
- final public int getInt() { int a = nio_get_Int(this, position(), limit()); inc_pos(4); return a; } final public ShortBuffer putInt(int value) { nio_put_Int(this, position(), limit(), value); inc_pos(4); return this; } final public int getInt(int index) { int a = nio_get_Int(this, index, limit()); return a; } final public ShortBuffer putInt(int index, int value) { nio_put_Int(this, index, limit(), value); return this; };
- final public long getLong() { long a = nio_get_Long(this, position(), limit()); inc_pos(8); return a; } final public ShortBuffer putLong(long value) { nio_put_Long(this, position(), limit(), value); inc_pos(8); return this; } final public long getLong(int index) { long a = nio_get_Long(this, index, limit()); return a; } final public ShortBuffer putLong(int index, long value) { nio_put_Long(this, index, limit(), value); return this; };
- final public float getFloat() { float a = nio_get_Float(this, position(), limit()); inc_pos(4); return a; } final public ShortBuffer putFloat(float value) { nio_put_Float(this, position(), limit(), value); inc_pos(4); return this; } final public float getFloat(int index) { float a = nio_get_Float(this, index, limit()); return a; } final public ShortBuffer putFloat(int index, float value) { nio_put_Float(this, index, limit(), value); return this; };
- final public double getDouble() { double a = nio_get_Double(this, position(), limit()); inc_pos(8); return a; } final public ShortBuffer putDouble(double value) { nio_put_Double(this, position(), limit(), value); inc_pos(8); return this; } final public double getDouble(int index) { double a = nio_get_Double(this, index, limit()); return a; } final public ShortBuffer putDouble(int index, double value) { nio_put_Double(this, index, limit(), value); return this; };
+
+ final public ByteOrder order ()
+ {
+ return ByteOrder.BIG_ENDIAN;
+ }
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-26 15:01:31 +0000