Commit 4a75abc

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Use some time compensation for dynamic classes transformation (#2551)

Use some time compensation in dynamic classes transformation

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+15

-6

lines changed

utbot-core/src/main/kotlin/org/utbot/common
- StopWatch.kt
utbot-instrumentation/src/main/kotlin/org/utbot/instrumentation/agent
- DynamicClassTransformer.kt

+15

-6

lines changed

Lines changed: 12 additions & 5 deletions

Original file line number	Diff line number	Diff line change
`@@ -28,12 +28,19 @@ class StopWatch {`
`28`	`28`	`startTime = System.currentTimeMillis()`
`29`	`29`	`}`
`30`	`30`	`}`
`31`		`-`
`32`		`- fun stop() {`
	`31`	`+`
	`32`	`+ /**`
	`33`	`+ * @param compensationMillis the duration in millis that should be subtracted from [elapsedMillis] to compensate`
	`34`	`+ * for stopping and restarting [StopWatch] taking some time, can also be used to compensate for some activities,`
	`35`	`+ * that are hard to directly detect (e.g. class loading).`
	`36`	`+ *`
	`37`	`+ * NOTE: [compensationMillis] will never cause [elapsedMillis] become negative.`
	`38`	`+ */`
	`39`	`+ fun stop(compensationMillis: Long = 0) {`
`33`	`40`	`lock.withLockInterruptibly {`
`34`		`- startTime?.let {`
`35`		`- elapsedMillis += (System.currentTimeMillis() - it)`
`36`		`- startTime = null`
	`41`	`+ startTime?.let { startTime ->`
	`42`	`+ elapsedMillis += ((System.currentTimeMillis() - startTime) - compensationMillis).coerceAtLeast(0)`
	`43`	`+ this.startTime = null`
`37`	`44`	`}`
`38`	`45`	`}`
`39`	`46`	`}`

Lines changed: 3 additions & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -35,7 +35,9 @@ class DynamicClassTransformer : ClassFileTransformer {`
`35`	`35`	`classfileBuffer: ByteArray`
`36`	`36`	`): ByteArray? {`
`37`	`37`	`try {`
`38`		`- UtContext.currentContext()?.stopWatch?.stop()`
	`38`	`+ // since we got here we have loaded a new class, meaning program is not stuck and some "meaningful"`
	`39`	`+ // non-repeating actions are performed, so we assume that we should not time out for then next 65 ms`
	`40`	`+ UtContext.currentContext()?.stopWatch?.stop(compensationMillis = 65)`
`39`	`41`	`val pathToClassfile = protectionDomain.codeSource?.location?.toURI()?.let(Paths::get)?.absolutePathString()`
`40`	`42`	`return if (pathToClassfile in pathsToUserClasses \|\|`
`41`	`43`	`packsToAlwaysTransform.any(className::startsWith)`

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