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allow explicit overriding any logical constraints on the clock skew (useful for simulating strange things)

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jrandom
2004-08-30 22:23:24 +00:00
committed by zzz
parent d5d9c9b483
commit 8690d4d7a9
1 changed files with 15 additions and 8 deletions
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23
core/java/src/net/i2p/util/Clock.java
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@ -43,20 +43,27 @@ public class Clock implements Timestamper.UpdateListener {
/** if the clock skewed changes by less than 1s, ignore the update (so we don't slide all over the place) */
public final static long MIN_OFFSET_CHANGE = 10 * 1000;
public void setOffset(long offsetMs) {
setOffset(offsetMs, false);
}
/**
* Specify how far away from the "correct" time the computer is - a positive
* value means that we are slow, while a negative value means we are fast.
*
*/
public void setOffset(long offsetMs) {
if ((offsetMs > MAX_OFFSET) || (offsetMs < 0 - MAX_OFFSET)) {
getLog().error("Maximum offset shift exceeded [" + offsetMs + "], NOT HONORING IT");
return;
}
public void setOffset(long offsetMs, boolean force) {
long delta = offsetMs - _offset;
if ((delta < MIN_OFFSET_CHANGE) && (delta > 0 - MIN_OFFSET_CHANGE)) {
getLog().debug("Not changing offset since it is only " + delta + "ms");
return;
if (!force) {
if ((offsetMs > MAX_OFFSET) || (offsetMs < 0 - MAX_OFFSET)) {
getLog().error("Maximum offset shift exceeded [" + offsetMs + "], NOT HONORING IT");
return;
}
if ((delta < MIN_OFFSET_CHANGE) && (delta > 0 - MIN_OFFSET_CHANGE)) {
getLog().debug("Not changing offset since it is only " + delta + "ms");
return;
}
}
if (_alreadyChanged)
getLog().log(Log.CRIT, "Updating clock offset to " + offsetMs + "ms from " + _offset + "ms");