JDK 17 java.base.jmod - Base Module
JDK 17 java.base.jmod is the JMOD file for JDK 17 Base module.
JDK 17 Base module compiled class files are stored in \fyicenter\jdk-17.0.5\jmods\java.base.jmod.
JDK 17 Base module compiled class files are also linked and stored in the \fyicenter\jdk-17.0.5\lib\modules JImage file.
JDK 17 Base module source code files are stored in \fyicenter\jdk-17.0.5\lib\src.zip\java.base.
You can click and view the content of each source code file in the list below.
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⏎ java/nio/HeapByteBuffer.java
/*
* Copyright (c) 2000, 2021, Oracle and/or its affiliates. All rights reserved.
* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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// -- This file was mechanically generated: Do not edit! -- //
package java.nio;
import java.util.Objects;
import jdk.internal.access.foreign.MemorySegmentProxy;
/**
* A read/write HeapByteBuffer.
*/
class HeapByteBuffer
extends ByteBuffer
{
// Cached array base offset
private static final long ARRAY_BASE_OFFSET = UNSAFE.arrayBaseOffset(byte[].class);
// Cached array index scale
private static final long ARRAY_INDEX_SCALE = UNSAFE.arrayIndexScale(byte[].class);
// For speed these fields are actually declared in X-Buffer;
// these declarations are here as documentation
/*
protected final byte[] hb;
protected final int offset;
*/
HeapByteBuffer(int cap, int lim, MemorySegmentProxy segment) { // package-private
super(-1, 0, lim, cap, new byte[cap], 0, segment);
/*
hb = new byte[cap];
offset = 0;
*/
this.address = ARRAY_BASE_OFFSET;
}
HeapByteBuffer(byte[] buf, int off, int len, MemorySegmentProxy segment) { // package-private
super(-1, off, off + len, buf.length, buf, 0, segment);
/*
hb = buf;
offset = 0;
*/
this.address = ARRAY_BASE_OFFSET;
}
protected HeapByteBuffer(byte[] buf,
int mark, int pos, int lim, int cap,
int off, MemorySegmentProxy segment)
{
super(mark, pos, lim, cap, buf, off, segment);
/*
hb = buf;
offset = off;
*/
this.address = ARRAY_BASE_OFFSET + off * ARRAY_INDEX_SCALE;
}
public ByteBuffer slice() {
int pos = this.position();
int lim = this.limit();
int rem = (pos <= lim ? lim - pos : 0);
return new HeapByteBuffer(hb,
-1,
0,
rem,
rem,
pos + offset, segment);
}
@Override
public ByteBuffer slice(int index, int length) {
Objects.checkFromIndexSize(index, length, limit());
return new HeapByteBuffer(hb,
-1,
0,
length,
length,
index + offset, segment);
}
public ByteBuffer duplicate() {
return new HeapByteBuffer(hb,
this.markValue(),
this.position(),
this.limit(),
this.capacity(),
offset, segment);
}
public ByteBuffer asReadOnlyBuffer() {
return new HeapByteBufferR(hb,
this.markValue(),
this.position(),
this.limit(),
this.capacity(),
offset, segment);
}
protected int ix(int i) {
return i + offset;
}
private long byteOffset(long i) {
return address + i;
}
public byte get() {
return hb[ix(nextGetIndex())];
}
public byte get(int i) {
return hb[ix(checkIndex(i))];
}
public ByteBuffer get(byte[] dst, int offset, int length) {
checkScope();
Objects.checkFromIndexSize(offset, length, dst.length);
int pos = position();
if (length > limit() - pos)
throw new BufferUnderflowException();
System.arraycopy(hb, ix(pos), dst, offset, length);
position(pos + length);
return this;
}
public ByteBuffer get(int index, byte[] dst, int offset, int length) {
checkScope();
Objects.checkFromIndexSize(index, length, limit());
Objects.checkFromIndexSize(offset, length, dst.length);
System.arraycopy(hb, ix(index), dst, offset, length);
return this;
}
public boolean isDirect() {
return false;
}
public boolean isReadOnly() {
return false;
}
public ByteBuffer put(byte x) {
hb[ix(nextPutIndex())] = x;
return this;
}
public ByteBuffer put(int i, byte x) {
hb[ix(checkIndex(i))] = x;
return this;
}
public ByteBuffer put(byte[] src, int offset, int length) {
checkScope();
Objects.checkFromIndexSize(offset, length, src.length);
int pos = position();
if (length > limit() - pos)
throw new BufferOverflowException();
System.arraycopy(src, offset, hb, ix(pos), length);
position(pos + length);
return this;
}
public ByteBuffer put(ByteBuffer src) {
checkScope();
super.put(src);
return this;
}
public ByteBuffer put(int index, ByteBuffer src, int offset, int length) {
checkScope();
super.put(index, src, offset, length);
return this;
}
public ByteBuffer put(int index, byte[] src, int offset, int length) {
checkScope();
Objects.checkFromIndexSize(index, length, limit());
Objects.checkFromIndexSize(offset, length, src.length);
System.arraycopy(src, offset, hb, ix(index), length);
return this;
}
public ByteBuffer compact() {
int pos = position();
int lim = limit();
assert (pos <= lim);
int rem = (pos <= lim ? lim - pos : 0);
System.arraycopy(hb, ix(pos), hb, ix(0), rem);
position(rem);
limit(capacity());
discardMark();
return this;
}
byte _get(int i) { // package-private
return hb[i];
}
void _put(int i, byte b) { // package-private
hb[i] = b;
}
// char
public char getChar() {
return SCOPED_MEMORY_ACCESS.getCharUnaligned(scope(), hb, byteOffset(nextGetIndex(2)), bigEndian);
}
public char getChar(int i) {
return SCOPED_MEMORY_ACCESS.getCharUnaligned(scope(), hb, byteOffset(checkIndex(i, 2)), bigEndian);
}
public ByteBuffer putChar(char x) {
SCOPED_MEMORY_ACCESS.putCharUnaligned(scope(), hb, byteOffset(nextPutIndex(2)), x, bigEndian);
return this;
}
public ByteBuffer putChar(int i, char x) {
SCOPED_MEMORY_ACCESS.putCharUnaligned(scope(), hb, byteOffset(checkIndex(i, 2)), x, bigEndian);
return this;
}
public CharBuffer asCharBuffer() {
int pos = position();
int size = (limit() - pos) >> 1;
long addr = address + pos;
return (bigEndian
? (CharBuffer)(new ByteBufferAsCharBufferB(this,
-1,
0,
size,
size,
addr, segment))
: (CharBuffer)(new ByteBufferAsCharBufferL(this,
-1,
0,
size,
size,
addr, segment)));
}
// short
public short getShort() {
return SCOPED_MEMORY_ACCESS.getShortUnaligned(scope(), hb, byteOffset(nextGetIndex(2)), bigEndian);
}
public short getShort(int i) {
return SCOPED_MEMORY_ACCESS.getShortUnaligned(scope(), hb, byteOffset(checkIndex(i, 2)), bigEndian);
}
public ByteBuffer putShort(short x) {
SCOPED_MEMORY_ACCESS.putShortUnaligned(scope(), hb, byteOffset(nextPutIndex(2)), x, bigEndian);
return this;
}
public ByteBuffer putShort(int i, short x) {
SCOPED_MEMORY_ACCESS.putShortUnaligned(scope(), hb, byteOffset(checkIndex(i, 2)), x, bigEndian);
return this;
}
public ShortBuffer asShortBuffer() {
int pos = position();
int size = (limit() - pos) >> 1;
long addr = address + pos;
return (bigEndian
? (ShortBuffer)(new ByteBufferAsShortBufferB(this,
-1,
0,
size,
size,
addr, segment))
: (ShortBuffer)(new ByteBufferAsShortBufferL(this,
-1,
0,
size,
size,
addr, segment)));
}
// int
public int getInt() {
return SCOPED_MEMORY_ACCESS.getIntUnaligned(scope(), hb, byteOffset(nextGetIndex(4)), bigEndian);
}
public int getInt(int i) {
return SCOPED_MEMORY_ACCESS.getIntUnaligned(scope(), hb, byteOffset(checkIndex(i, 4)), bigEndian);
}
public ByteBuffer putInt(int x) {
SCOPED_MEMORY_ACCESS.putIntUnaligned(scope(), hb, byteOffset(nextPutIndex(4)), x, bigEndian);
return this;
}
public ByteBuffer putInt(int i, int x) {
SCOPED_MEMORY_ACCESS.putIntUnaligned(scope(), hb, byteOffset(checkIndex(i, 4)), x, bigEndian);
return this;
}
public IntBuffer asIntBuffer() {
int pos = position();
int size = (limit() - pos) >> 2;
long addr = address + pos;
return (bigEndian
? (IntBuffer)(new ByteBufferAsIntBufferB(this,
-1,
0,
size,
size,
addr, segment))
: (IntBuffer)(new ByteBufferAsIntBufferL(this,
-1,
0,
size,
size,
addr, segment)));
}
// long
public long getLong() {
return SCOPED_MEMORY_ACCESS.getLongUnaligned(scope(), hb, byteOffset(nextGetIndex(8)), bigEndian);
}
public long getLong(int i) {
return SCOPED_MEMORY_ACCESS.getLongUnaligned(scope(), hb, byteOffset(checkIndex(i, 8)), bigEndian);
}
public ByteBuffer putLong(long x) {
SCOPED_MEMORY_ACCESS.putLongUnaligned(scope(), hb, byteOffset(nextPutIndex(8)), x, bigEndian);
return this;
}
public ByteBuffer putLong(int i, long x) {
SCOPED_MEMORY_ACCESS.putLongUnaligned(scope(), hb, byteOffset(checkIndex(i, 8)), x, bigEndian);
return this;
}
public LongBuffer asLongBuffer() {
int pos = position();
int size = (limit() - pos) >> 3;
long addr = address + pos;
return (bigEndian
? (LongBuffer)(new ByteBufferAsLongBufferB(this,
-1,
0,
size,
size,
addr, segment))
: (LongBuffer)(new ByteBufferAsLongBufferL(this,
-1,
0,
size,
size,
addr, segment)));
}
// float
public float getFloat() {
int x = SCOPED_MEMORY_ACCESS.getIntUnaligned(scope(), hb, byteOffset(nextGetIndex(4)), bigEndian);
return Float.intBitsToFloat(x);
}
public float getFloat(int i) {
int x = SCOPED_MEMORY_ACCESS.getIntUnaligned(scope(), hb, byteOffset(checkIndex(i, 4)), bigEndian);
return Float.intBitsToFloat(x);
}
public ByteBuffer putFloat(float x) {
int y = Float.floatToRawIntBits(x);
SCOPED_MEMORY_ACCESS.putIntUnaligned(scope(), hb, byteOffset(nextPutIndex(4)), y, bigEndian);
return this;
}
public ByteBuffer putFloat(int i, float x) {
int y = Float.floatToRawIntBits(x);
SCOPED_MEMORY_ACCESS.putIntUnaligned(scope(), hb, byteOffset(checkIndex(i, 4)), y, bigEndian);
return this;
}
public FloatBuffer asFloatBuffer() {
int pos = position();
int size = (limit() - pos) >> 2;
long addr = address + pos;
return (bigEndian
? (FloatBuffer)(new ByteBufferAsFloatBufferB(this,
-1,
0,
size,
size,
addr, segment))
: (FloatBuffer)(new ByteBufferAsFloatBufferL(this,
-1,
0,
size,
size,
addr, segment)));
}
// double
public double getDouble() {
long x = SCOPED_MEMORY_ACCESS.getLongUnaligned(scope(), hb, byteOffset(nextGetIndex(8)), bigEndian);
return Double.longBitsToDouble(x);
}
public double getDouble(int i) {
long x = SCOPED_MEMORY_ACCESS.getLongUnaligned(scope(), hb, byteOffset(checkIndex(i, 8)), bigEndian);
return Double.longBitsToDouble(x);
}
public ByteBuffer putDouble(double x) {
long y = Double.doubleToRawLongBits(x);
SCOPED_MEMORY_ACCESS.putLongUnaligned(scope(), hb, byteOffset(nextPutIndex(8)), y, bigEndian);
return this;
}
public ByteBuffer putDouble(int i, double x) {
long y = Double.doubleToRawLongBits(x);
SCOPED_MEMORY_ACCESS.putLongUnaligned(scope(), hb, byteOffset(checkIndex(i, 8)), y, bigEndian);
return this;
}
public DoubleBuffer asDoubleBuffer() {
int pos = position();
int size = (limit() - pos) >> 3;
long addr = address + pos;
return (bigEndian
? (DoubleBuffer)(new ByteBufferAsDoubleBufferB(this,
-1,
0,
size,
size,
addr, segment))
: (DoubleBuffer)(new ByteBufferAsDoubleBufferL(this,
-1,
0,
size,
size,
addr, segment)));
}
}
⏎ java/nio/HeapByteBuffer.java
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