rosjava: TimeUnit.java Source File

00001 /*
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00034 
00035 // author: Jason Wolfe
00036 
00037 
00038 
00039 package ros.communication;
00040 
00041 public abstract class TimeUnit implements Cloneable {
00042         public int secs;
00043         public int nsecs;
00044         
00045         public long totalNsecs() { 
00046                 return ((long) secs) * 1000000000 + nsecs;
00047         }
00048         
00049         public boolean isZero()     { return totalNsecs() == 0; }
00050         public boolean isPositive() { return totalNsecs() >  0; }
00051         public boolean isNegative() { return totalNsecs() <  0; }
00052 
00053         public void normalize() {
00054                 while(nsecs < 0) {
00055                         nsecs += 1000000000;
00056                         secs -= 1;
00057                 }
00058                 while(nsecs >= 1000000000) {
00059                         nsecs -= 1000000000;
00060                         secs += 1;                      
00061                 }
00062         }
00063         
00064         public TimeUnit clone() {
00065                 try {
00066                         return (TimeUnit) super.clone();
00067                 } catch (CloneNotSupportedException e) {
00068                         throw new RuntimeException("TimeUnit not cloneable?!");
00069                 }
00070         }
00071 }