1 /*
2  * Copyright (C) 2024 The Android Open Source Project
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 package com.example.tracing.demo.experiments
17 
18 import com.android.app.tracing.coroutines.launchTraced as launch
19 import com.example.tracing.demo.Default
20 import com.example.tracing.demo.FixedThreadA
21 import com.example.tracing.demo.FixedThreadB
22 import com.example.tracing.demo.FixedThreadC
23 import com.example.tracing.demo.IO
24 import com.example.tracing.demo.Unconfined
25 import javax.inject.Inject
26 import javax.inject.Singleton
27 import kotlinx.coroutines.CoroutineDispatcher
28 import kotlinx.coroutines.coroutineScope
29 
30 @Singleton
31 class LaunchSequentially
32 @Inject
33 constructor(
34     @FixedThreadA private var dispatcherA: CoroutineDispatcher,
35     @FixedThreadB private var dispatcherB: CoroutineDispatcher,
36     @FixedThreadC private val dispatcherC: CoroutineDispatcher,
37     @Default private var defaultContext: CoroutineDispatcher,
38     @IO private var ioContext: CoroutineDispatcher,
39     @Unconfined private var unconfinedContext: CoroutineDispatcher,
40 ) : Experiment {
41     override val description: String = "launch{};launch{};launch{};launch{}"
42 
<lambda>null43     override suspend fun start(): Unit = coroutineScope {
44         launch("launch(threadA)", dispatcherA) { forceSuspend("A", 250) }
45         launch("launch(threadB)", dispatcherB) { forceSuspend("B", 250) }
46         launch("launch(threadC)", dispatcherC) { forceSuspend("C", 250) }
47         launch("launch(Dispatchers.Default)", defaultContext) { forceSuspend("D", 250) }
48         launch("launch(EmptyCoroutineContext)") { forceSuspend("E", 250) }
49         launch("launch(Dispatchers.IO)", ioContext) { forceSuspend("F", 250) }
50         launch("launch(Dispatchers.Unconfined)", unconfinedContext) { forceSuspend("G", 250) }
51     }
52 }
53