Roman Elizarov | db0d4fc | 2018-01-29 10:50:20 +0300 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2016-2017 JetBrains s.r.o. |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package kotlinx.coroutines.experimental |
| 18 | |
| 19 | import kotlinx.atomicfu.* |
| 20 | import java.util.* |
| 21 | import java.util.concurrent.* |
| 22 | import kotlin.concurrent.* |
| 23 | import kotlin.test.* |
| 24 | |
| 25 | class JobHandlersUpgradeStressTest : TestBase() { |
| 26 | private val nSeconds = 3 * stressTestMultiplier |
| 27 | private val nThreads = 4 |
| 28 | |
| 29 | private val cyclicBarrier = CyclicBarrier(1 + nThreads) |
| 30 | private val threads = mutableListOf<Thread>() |
| 31 | |
| 32 | private val inters = atomic(0) |
| 33 | private val removed = atomic(0) |
| 34 | private val fired = atomic(0) |
| 35 | |
| 36 | private val sink = atomic(0) |
| 37 | |
| 38 | @Volatile |
| 39 | private var done = false |
| 40 | |
| 41 | @Volatile |
| 42 | private var job: Job? = null |
| 43 | |
| 44 | class State { |
| 45 | val state = atomic(0) |
| 46 | } |
| 47 | |
| 48 | @Test |
| 49 | fun testStress() { |
| 50 | println("--- JobHandlersUpgradeStressTest") |
| 51 | threads += thread(name = "creator", start = false) { |
| 52 | val rnd = Random() |
| 53 | while (true) { |
| 54 | job = if (done) null else Job() |
| 55 | cyclicBarrier.await() |
| 56 | val job = job ?: break |
| 57 | // burn some time |
Roman Elizarov | 0aa6db0 | 2018-01-29 13:18:38 +0300 | [diff] [blame] | 58 | repeat(rnd.nextInt(3000)) { sink.incrementAndGet() } |
Roman Elizarov | db0d4fc | 2018-01-29 10:50:20 +0300 | [diff] [blame] | 59 | // cancel job |
| 60 | job.cancel() |
| 61 | cyclicBarrier.await() |
| 62 | inters.incrementAndGet() |
| 63 | } |
| 64 | } |
| 65 | threads += List(nThreads) { threadId -> |
| 66 | thread(name = "handler-$threadId", start = false) { |
| 67 | val rnd = Random() |
| 68 | while (true) { |
| 69 | val onCancelling = rnd.nextBoolean() |
| 70 | val invokeImmediately: Boolean = rnd.nextBoolean() |
| 71 | cyclicBarrier.await() |
| 72 | val job = job ?: break |
| 73 | val state = State() |
| 74 | // burn some time |
Roman Elizarov | 0aa6db0 | 2018-01-29 13:18:38 +0300 | [diff] [blame] | 75 | repeat(rnd.nextInt(1000)) { sink.incrementAndGet() } |
Roman Elizarov | db0d4fc | 2018-01-29 10:50:20 +0300 | [diff] [blame] | 76 | val handle = |
| 77 | job.invokeOnCompletion(onCancelling = onCancelling, invokeImmediately = invokeImmediately) { |
| 78 | if (!state.state.compareAndSet(0, 1)) |
| 79 | error("Fired more than once or too late: state=${state.state.value}") |
| 80 | } |
| 81 | // burn some time |
Roman Elizarov | 0aa6db0 | 2018-01-29 13:18:38 +0300 | [diff] [blame] | 82 | repeat(rnd.nextInt(1000)) { sink.incrementAndGet() } |
Roman Elizarov | db0d4fc | 2018-01-29 10:50:20 +0300 | [diff] [blame] | 83 | // dispose |
| 84 | handle.dispose() |
| 85 | cyclicBarrier.await() |
| 86 | val resultingState = state.state.value |
| 87 | when (resultingState) { |
| 88 | 0 -> removed.incrementAndGet() |
| 89 | 1 -> fired.incrementAndGet() |
| 90 | else -> error("Cannot happen") |
| 91 | } |
| 92 | if (!state.state.compareAndSet(resultingState, 2)) |
| 93 | error("Cannot fire late: resultingState=$resultingState") |
| 94 | } |
| 95 | } |
| 96 | } |
| 97 | threads.forEach { it.start() } |
| 98 | repeat(nSeconds) { second -> |
| 99 | Thread.sleep(1000) |
| 100 | println("${second + 1}: ${inters.value} iterations") |
| 101 | } |
| 102 | done = true |
| 103 | threads.forEach { it.join() } |
| 104 | println(" Completed ${inters.value} iterations") |
| 105 | println(" Removed handler ${removed.value} times") |
| 106 | println(" Fired handler ${fired.value} times") |
| 107 | |
| 108 | } |
| 109 | } |