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.intentresolver.util
18 
19 import kotlinx.coroutines.sync.Mutex
20 import kotlinx.coroutines.sync.Semaphore
21 
22 /**
23  * Constructs a [Semaphore] for usage within [block], useful for launching a lot of work in parallel
24  * that needs some synchronization.
25  */
withSemaphorenull26 inline fun <R> withSemaphore(permits: Int, block: Semaphore.() -> R): R =
27     Semaphore(permits).run(block)
28 
29 /**
30  * Constructs a [Mutex] for usage within [block], useful for launching a lot of work in parallel
31  * that needs some synchronization.
32  */
33 inline fun <R> withMutex(block: Mutex.() -> R): R = Mutex().run(block)
34