Vsevolod Tolstopyatov | 7bd983f | 2018-07-25 12:36:23 +0300 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2016-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license. |
| 3 | */ |
| 4 | |
| 5 | package kotlinx.coroutines.experimental.channels |
| 6 | |
| 7 | import com.devexperts.dxlab.lincheck.* |
| 8 | import com.devexperts.dxlab.lincheck.execution.* |
| 9 | import java.util.* |
| 10 | |
| 11 | typealias ExecutionBuilder = (List<MutableList<Actor>>, List<ActorGenerator>) -> Unit |
| 12 | |
| 13 | /** |
| 14 | * Example of usage: |
| 15 | * |
| 16 | * ``` |
| 17 | * StressOptions().injectExecution { actors, methods -> |
| 18 | * actors[0].add(actorMethod(methods, "receive1")) |
| 19 | * actors[0].add(actorMethod(methods, "receive2")) |
| 20 | * |
| 21 | * actors[1].add(actorMethod(methods, "send2")) |
| 22 | * actors[1].add(actorMethod(methods, "send1")) |
| 23 | * } |
| 24 | * |
| 25 | * ``` |
| 26 | * |
| 27 | * Will produce |
| 28 | * ``` |
| 29 | * Actors per thread: |
| 30 | * [receive1(), receive2()] |
| 31 | * [send2(), send1()] |
| 32 | * ``` |
| 33 | * at the first iteration. |
| 34 | * |
| 35 | * DSL will be improved when this method will be used frequently |
| 36 | */ |
| 37 | fun Options<*, *>.injectExecution(behaviourBuilder: ExecutionBuilder): Options<*, *> { |
| 38 | injectedBehaviour.add(behaviourBuilder) |
| 39 | executionGenerator(FixedBehaviourInjectorExecutionGenerator::class.java) |
| 40 | return this |
| 41 | } |
| 42 | |
| 43 | fun actorMethod(generators: List<ActorGenerator>, name: String): Actor = |
| 44 | generators.find { it.generate().method.name.contains(name) }?.generate() ?: error("Actor method $name is not found in ${generators.map { it.generate().method.name }}") |
| 45 | |
| 46 | private val injectedBehaviour: Queue<ExecutionBuilder> = ArrayDeque<ExecutionBuilder>() |
| 47 | |
| 48 | class FixedBehaviourInjectorExecutionGenerator(testConfiguration: CTestConfiguration, testStructure: CTestStructure) |
| 49 | : ExecutionGenerator(testConfiguration, testStructure) { |
| 50 | |
| 51 | private val randomGenerator = RandomExecutionGenerator(testConfiguration, testStructure) |
| 52 | |
| 53 | override fun nextExecution(): List<List<Actor>> { |
| 54 | val injector = injectedBehaviour.poll() |
| 55 | if (injector != null) { |
| 56 | val parallelGroup = ArrayList(testStructure.actorGenerators) |
| 57 | val actorsPerThread = ArrayList<MutableList<Actor>>() |
| 58 | for (i in testConfiguration.threadConfigurations.indices) { |
| 59 | actorsPerThread.add(ArrayList()) |
| 60 | } |
| 61 | |
| 62 | injector.invoke(actorsPerThread, parallelGroup) |
| 63 | return actorsPerThread |
| 64 | } |
| 65 | |
| 66 | return randomGenerator.nextExecution() |
| 67 | } |
| 68 | } |
| 69 | |
| 70 | // Ad-hoc fixed execution injection for lin-checker |
| 71 | class FixedBehaviourExecutionGenerator(testConfiguration: CTestConfiguration, testStructure: CTestStructure) |
| 72 | : ExecutionGenerator(testConfiguration, testStructure) { |
| 73 | |
| 74 | override fun nextExecution(): List<List<Actor>> { |
| 75 | val parallelGroup = ArrayList(testStructure.actorGenerators) |
| 76 | val actorsPerThread = ArrayList<MutableList<Actor>>() |
| 77 | for (i in testConfiguration.threadConfigurations.indices) { |
| 78 | actorsPerThread.add(ArrayList()) |
| 79 | } |
| 80 | |
| 81 | |
| 82 | actorsPerThread[0].add(actorMethod(parallelGroup, "receive1")) |
| 83 | actorsPerThread[0].add(actorMethod(parallelGroup, "receive2")) |
| 84 | actorsPerThread[0].add(actorMethod(parallelGroup, "close1")) |
| 85 | |
| 86 | actorsPerThread[1].add(actorMethod(parallelGroup, "send2")) |
| 87 | actorsPerThread[1].add(actorMethod(parallelGroup, "send1")) |
| 88 | |
| 89 | return actorsPerThread |
| 90 | } |
| 91 | } |