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
17 package com.android.systemui.kairos.internal
18
19 import com.android.systemui.kairos.internal.util.asyncImmediate
20 import com.android.systemui.kairos.internal.util.launchImmediate
21 import kotlinx.coroutines.CoroutineName
22 import kotlinx.coroutines.CoroutineScope
23 import kotlinx.coroutines.CoroutineStart
24 import kotlinx.coroutines.Deferred
25 import kotlinx.coroutines.Job
26 import kotlinx.coroutines.coroutineScope
27 import kotlinx.coroutines.isActive
28
29 internal typealias DeferScope = CoroutineScope
30
deferActionnull31 internal inline fun DeferScope.deferAction(
32 start: CoroutineStart = CoroutineStart.UNDISPATCHED,
33 crossinline block: suspend () -> Unit,
34 ): Job {
35 check(isActive) { "Cannot perform deferral, scope already closed." }
36 return launchImmediate(start, CoroutineName("deferAction")) { block() }
37 }
38
deferAsyncnull39 internal inline fun <R> DeferScope.deferAsync(
40 start: CoroutineStart = CoroutineStart.UNDISPATCHED,
41 crossinline block: suspend () -> R,
42 ): Deferred<R> {
43 check(isActive) { "Cannot perform deferral, scope already closed." }
44 return asyncImmediate(start, CoroutineName("deferAsync")) { block() }
45 }
46
deferScopenull47 internal suspend inline fun <A> deferScope(noinline block: suspend DeferScope.() -> A): A =
48 coroutineScope(block)
49