1 /*
2  * Copyright 2020 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 @file:RestrictTo(RestrictTo.Scope.LIBRARY)
18 
19 package androidx.paging
20 
21 import androidx.annotation.RestrictTo
22 import kotlinx.coroutines.Job
23 import kotlinx.coroutines.flow.Flow
24 
cancelableChannelFlownull25 internal fun <T> cancelableChannelFlow(
26     controller: Job,
27     block: suspend SimpleProducerScope<T>.() -> Unit
28 ): Flow<T> {
29     return simpleChannelFlow<T> {
30         controller.invokeOnCompletion { close() }
31         this.block()
32     }
33 }
34