grpc-swift/Sources/GRPCCore/Internal/Task+SleepBackport.swift

/*
 * Copyright 2023, gRPC Authors All rights reserved.
 *
 * 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.
 */

#if swift(<5.9)
@available(macOS 13.0, iOS 16.0, watchOS 9.0, tvOS 16.0, *)
extension Task where Success == Never, Failure == Never {
  @inlinable
  static func sleep<C: Clock>(
    for duration: C.Instant.Duration,
    tolerance: C.Instant.Duration? = nil,
    clock: C = ContinuousClock()
  ) async throws {
    try await clock.sleep(until: clock.now.advanced(by: duration), tolerance: tolerance)
  }
}
#endif