wehub-resource-sync
68 lines
2.3 KiB
Swift
68 lines
2.3 KiB
Swift
//===----------------------------------------------------------------------===//
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// Copyright © 2025-2026 Apple Inc. and the Containerization project authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//===----------------------------------------------------------------------===//
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/// `Timeout` contains helpers to run an operation and error out if
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/// the operation does not finish within a provided time.
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public struct Timeout {
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/// Performs the passed in `operation` and throws a `CancellationError` if the operation
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/// doesn't finish in the provided `seconds` amount.
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public static func run<T: Sendable>(
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seconds: UInt32,
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operation: @escaping @Sendable () async throws -> T
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) async throws -> T {
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try await withThrowingTaskGroup(of: T.self) { group in
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group.addTask {
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try await operation()
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}
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group.addTask {
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try await Task.sleep(for: .seconds(seconds))
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throw CancellationError()
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}
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guard let result = try await group.next() else {
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fatalError()
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}
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group.cancelAll()
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return result
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}
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}
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public static func run<T: Sendable>(
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for duration: Duration,
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operation: @escaping @Sendable () async throws -> T
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) async throws -> T {
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try await withThrowingTaskGroup(of: T.self) { group in
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group.addTask {
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try await operation()
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}
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group.addTask {
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try await Task.sleep(for: duration)
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throw CancellationError()
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}
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guard let result = try await group.next() else {
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fatalError()
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}
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group.cancelAll()
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return result
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}
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}
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}
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