UnsafeDirectSwappedByteBuf Class — netty Architecture

Source Code

buffer/src/main/java/io/netty/buffer/UnsafeDirectSwappedByteBuf.java lines 24–67

final class UnsafeDirectSwappedByteBuf extends AbstractUnsafeSwappedByteBuf {

    UnsafeDirectSwappedByteBuf(AbstractByteBuf buf) {
        super(buf);
    }

    private static long addr(AbstractByteBuf wrapped, int index) {
        // We need to call wrapped.memoryAddress() everytime and NOT cache it as it may change if the buffer expand.
        // See:
        // - https://github.com/netty/netty/issues/2587
        // - https://github.com/netty/netty/issues/2580
        return wrapped.memoryAddress() + index;
    }

    @Override
    protected long _getLong(AbstractByteBuf wrapped, int index) {
        return PlatformDependent.getLong(addr(wrapped, index));
    }

    @Override
    protected int _getInt(AbstractByteBuf wrapped, int index) {
        return PlatformDependent.getInt(addr(wrapped, index));
    }

    @Override
    protected short _getShort(AbstractByteBuf wrapped, int index) {
        return PlatformDependent.getShort(addr(wrapped, index));
    }

    @Override
    protected void _setShort(AbstractByteBuf wrapped, int index, short value) {
        PlatformDependent.putShort(addr(wrapped, index), value);
    }

    @Override
    protected void _setInt(AbstractByteBuf wrapped, int index, int value) {
        PlatformDependent.putInt(addr(wrapped, index), value);
    }

    @Override
    protected void _setLong(AbstractByteBuf wrapped, int index, long value) {
        PlatformDependent.putLong(addr(wrapped, index), value);
    }
}