capnproto-java-rpc/runtime/src/main/java/org/capnproto/StructBuilder.java
2014-10-07 17:47:42 -04:00

157 lines
5.5 KiB
Java

package org.capnproto;
public class StructBuilder {
public interface Factory<T> {
T constructBuilder(SegmentBuilder segment, int data, int pointers, int dataSize,
short pointerCount, byte bit0Offset);
StructSize structSize();
}
protected final SegmentBuilder segment;
protected final int data; // byte offset to data section
protected final int pointers; // word offset of pointer section
protected final int dataSize; // in bits
protected final short pointerCount;
protected final byte bit0Offset;
public StructBuilder(SegmentBuilder segment, int data,
int pointers, int dataSize, short pointerCount,
byte bit0Offset) {
this.segment = segment;
this.data = data;
this.pointers = pointers;
this.dataSize = dataSize;
this.pointerCount = pointerCount;
this.bit0Offset = bit0Offset;
}
protected final boolean _getBooleanField(int offset) {
int bitOffset = (offset == 0 ? this.bit0Offset : offset);
int position = this.data + (bitOffset / 8);
return (this.segment.buffer.get(position) & (1 << (bitOffset % 8))) != 0;
}
protected final boolean _getBooleanField(int offset, boolean mask) {
return this._getBooleanField(offset) ^ mask;
}
protected final void _setBooleanField(int offset, boolean value) {
int bitOffset = offset;
if (offset == 0) { bitOffset = this.bit0Offset; }
byte bitnum = (byte)(bitOffset % 8);
int position = this.data + (bitOffset / 8);
byte oldValue = this.segment.buffer.get(position);
this.segment.buffer.put(position,
(byte)((oldValue & (~(1 << bitnum))) | (( value ? 1 : 0) << bitnum)));
}
protected final void _setBooleanField(int offset, boolean value, boolean mask) {
this._setBooleanField(offset, value ^ mask);
}
protected final byte _getByteField(int offset) {
return this.segment.buffer.get(this.data + offset);
}
protected final byte _getByteField(int offset, byte mask) {
return (byte)(this._getByteField(offset) ^ mask);
}
protected final void _setByteField(int offset, byte value) {
this.segment.buffer.put(this.data + offset, value);
}
protected final void _setByteField(int offset, byte value, byte mask) {
this._setByteField(offset, (byte) (value ^ mask));
}
protected final short _getShortField(int offset) {
return this.segment.buffer.getShort(this.data + offset * 2);
}
protected final short _getShortField(int offset, short mask) {
return (short)(this._getShortField(offset) ^ mask);
}
protected final void _setShortField(int offset, short value) {
this.segment.buffer.putShort(this.data + offset * 2, value);
}
protected final void _setShortField(int offset, short value, short mask) {
this._setShortField(offset, (short)(value ^ mask));
}
protected final int _getIntField(int offset) {
return this.segment.buffer.getInt(this.data + offset * 4);
}
protected final int _getIntField(int offset, int mask) {
return this._getIntField(offset) ^ mask;
}
protected final void _setIntField(int offset, int value) {
this.segment.buffer.putInt(this.data + offset * 4, value);
}
protected final void _setIntField(int offset, int value, int mask) {
this._setIntField(offset, value ^ mask);
}
protected final long _getLongField(int offset) {
return this.segment.buffer.getLong(this.data + offset * 8);
}
protected final long _getLongField(int offset, long mask) {
return this._getLongField(offset) ^ mask;
}
protected final void _setLongField(int offset, long value) {
this.segment.buffer.putLong(this.data + offset * 8, value);
}
protected final void _setLongField(int offset, long value, long mask) {
this._setLongField(offset, value ^ mask);
}
protected final float _getFloatField(int offset) {
return this.segment.buffer.getFloat(this.data + offset * 4);
}
protected final float _getFloatField(int offset, int mask) {
return Float.intBitsToFloat(
this.segment.buffer.getInt(this.data + offset * 4) ^ mask);
}
protected final void _setFloatField(int offset, float value) {
this.segment.buffer.putFloat(this.data + offset * 4, value);
}
protected final void _setFloatField(int offset, float value, int mask) {
this.segment.buffer.putInt(this.data + offset * 4,
Float.floatToIntBits(value) ^ mask);
}
protected final double _getDoubleField(int offset) {
return this.segment.buffer.getDouble(this.data + offset * 8);
}
protected final double _getDoubleField(int offset, long mask) {
return Double.longBitsToDouble(
this.segment.buffer.getLong(this.data + offset * 8) ^ mask);
}
protected final void _setDoubleField(int offset, double value) {
this.segment.buffer.putDouble(this.data + offset * 8, value);
}
protected final void _setDoubleField(int offset, double value, long mask) {
this.segment.buffer.putLong(this.data + offset * 8,
Double.doubleToLongBits(value) ^ mask);
}
protected final PointerBuilder _getPointerField(int index) {
return new PointerBuilder(this.segment, this.pointers + index);
}
}