service/java/com/android/permission/access/util/AtomicFileExtensions.kt

/*
 * Copyright (C) 2022 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.permission.access.util

import android.util.AtomicFile
import java.io.FileInputStream
import java.io.FileOutputStream
import java.io.IOException

/**
 * Read from an [AtomicFile] and close everything safely when done.
 */
@Throws(IOException::class)
inline fun AtomicFile.read(block: (FileInputStream) -> Unit) {
    openRead().use(block)
}

/**
 * Write to an [AtomicFile] and close everything safely when done.
 */
@Throws(IOException::class)
// Renamed to writeInlined() to avoid conflict with the hidden AtomicFile.write() that isn't inline.
inline fun AtomicFile.writeInlined(block: (FileOutputStream) -> Unit) {
    startWrite().use {
        try {
            block(it)
            finishWrite(it)
        } catch (t: Throwable) {
            failWrite(it)
            throw t
        }
    }
}