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package sun.java2d.xr;

UInt32 "emulation", mimics the behaviour of xcb's request counter. In order to be compatible with xcb we have to wrap exactly when xcb would do.
Author:Clemens Eisserer
/** * UInt32 "emulation", mimics the behaviour of xcb's request counter. * In order to be compatible with xcb we have to wrap exactly when xcb would do. * @author Clemens Eisserer */
public class XcbRequestCounter { private static final long MAX_UINT = 4294967295L; long value; public XcbRequestCounter(long value) { this.value = value; } public void setValue(long value) { this.value = value; } public long getValue() { return value; } public void add(long v) { value += v; /*Handle 32-bit unsigned int overflow*/ if (value > MAX_UINT) { value = 0; //-= MAX_UINT; //Shouldn't that be zero?!?! } } }