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//
// BackgroundTaskProvider.swift
// MullvadVPN
//
// Created by Marco Nikic on 2023-10-02.
// Copyright © 2025 Mullvad VPN AB. All rights reserved.
//
#if canImport(UIKit)
import Foundation
import UIKit
@available(iOSApplicationExtension, unavailable)
public protocol BackgroundTaskProviding: Sendable {
var backgroundTimeRemaining: TimeInterval { get }
nonisolated func beginBackgroundTask(
withName taskName: String?,
expirationHandler handler: (@MainActor @Sendable () -> Void)?
) -> UIBackgroundTaskIdentifier
func endBackgroundTask(_ identifier: UIBackgroundTaskIdentifier)
}
@available(iOSApplicationExtension, unavailable)
public final class BackgroundTaskProvider: BackgroundTaskProviding {
nonisolated(unsafe) public var backgroundTimeRemaining: TimeInterval
nonisolated(unsafe) weak var application: UIApplication!
public init(backgroundTimeRemaining: TimeInterval, application: UIApplication) {
self.backgroundTimeRemaining = backgroundTimeRemaining
self.application = application
}
nonisolated public func beginBackgroundTask(
withName taskName: String?,
expirationHandler handler: (@MainActor @Sendable () -> Void)? = nil
) -> UIBackgroundTaskIdentifier {
application.beginBackgroundTask(withName: taskName, expirationHandler: handler)
}
public func endBackgroundTask(_ identifier: UIBackgroundTaskIdentifier) {
application.endBackgroundTask(identifier)
}
}
#endif
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