Spin locks detection enhancements #228
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added 16 commits
July 29, 2023 01:52
… caused by multiple spin cycle iterations.
…s' into spin-locks-detection-enhancements
added 4 commits
August 3, 2023 00:55
…on-enhancements # Conflicts: # src/jvm/main/org/jetbrains/kotlinx/lincheck/runner/InvocationResult.kt # src/jvm/main/org/jetbrains/kotlinx/lincheck/strategy/managed/InterleavingSequenceTrackableSet.kt # src/jvm/main/org/jetbrains/kotlinx/lincheck/strategy/managed/ManagedStrategy.kt # src/jvm/main/org/jetbrains/kotlinx/lincheck/strategy/managed/modelchecking/ModelCheckingStrategy.kt # src/jvm/test/org/jetbrains/kotlinx/lincheck_test/representation/SpinlockEventsCutTests.kt # src/jvm/test/resources/expected_logs/switch_in_the_middle_of_spin_cycle_causes_error.txt
ndkoval
requested changes
Aug 18, 2023
| @@ -52,6 +52,7 @@ kotlin { | |||
| api("org.ow2.asm:asm-commons:$asmVersion") | |||
| api("org.ow2.asm:asm-util:$asmVersion") | |||
| api("org.reflections:reflections:$reflectionsVersion") | |||
| api("net.sf.trove4j:trove4j:3.0.3") | |||
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Please repackage it to org.jetbrains.kotlinx.lincheck
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| package org.jetbrains.kotlinx.lincheck.strategy.managed; | ||
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| public class TrackMethodsFlagHolder { |
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| package org.jetbrains.kotlinx.lincheck.strategy.managed; | ||
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| public class TrackMethodsFlagHolder { |
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Do you use it only when detecting spin locks?
| @@ -84,7 +84,8 @@ private static boolean doNotTransform(String className) { | |||
| className.equals(kotlinx.coroutines.CoroutineContextKt.class.getName()) || | |||
| className.equals(kotlinx.coroutines.CancellableContinuation.class.getName()) || | |||
| className.equals(kotlinx.coroutines.CoroutineExceptionHandler.class.getName()) || | |||
| className.equals(kotlinx.coroutines.CoroutineDispatcher.class.getName()); | |||
| className.equals(kotlinx.coroutines.CoroutineDispatcher.class.getName()) || | |||
| className.equals(TrackMethodsFlagHolder.class.getName()); | |||
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Similarly to other Lincheck classes, it should not be transformed by default
| @@ -252,6 +260,7 @@ internal class ModelCheckingStrategy( | |||
| } | |||
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| fun rollbackAfterSpinCycleFound() { | |||
| lastNotInitializedNode = initialLastNotInitializedNode | |||
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Is this change related to another bug?
| ): InterleavingHistoryNode { | ||
| check(executions >= executionsBeforeCycle) | ||
| check(executions >= executionsBeforeCycle) { "?" } |
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Please replace "?" with a meaningful message
| @@ -241,7 +256,8 @@ internal class InterleavingSequenceTrackableSet { | |||
| fun mergeBranch(newChain: List<InterleavingHistoryNode>, startIndex: Int, executionsCountedEarlier: Int) { | |||
| if (startIndex > newChain.lastIndex) return | |||
| val firstNewNode = newChain[startIndex] | |||
| val firstNewNodeExecutions = (firstNewNode.executions + firstNewNode.spinCyclePeriod) - executionsCountedEarlier | |||
| val firstNewNodeExecutions = | |||
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Please revert the formatting
| @@ -263,7 +279,8 @@ internal class InterleavingSequenceTrackableSet { | |||
| transitions = transitions, | |||
| cyclePeriod = cyclePeriod, | |||
| cycleOccurred = cycleOccurred, | |||
| cycleLocationsHash = cycleLocationsHash | |||
| cycleLocationsHash = cycleLocationsHash, | |||
| executionsBeforeSpinCycleWithAdditionalEvents = executionsBeforeSpinCycleWithAdditionalEvents | |||
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Shorten the parameter name
| @@ -424,6 +444,8 @@ internal class InterleavingSequenceTrackableSet { | |||
| it.cycleOccurred && executionsCount == it.executions | |||
| } ?: false | |||
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| val executionsBeforeSpinCycleWithAdditionalEvents: Int get() = currentNode!!.executionsBeforeSpinCycleWithAdditionalEvents | |||
| } else CycleInfo( | ||
| minLastPositionNotRelatedToCycle + 1, | ||
| targetCycleLength | ||
| ) // number of prefix elements with first cycle |
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Is the comment in the correct place?
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The changes will be delivered under #331 |
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Closes #219 #218 and adds recursive spin-locks support.
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