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//===----------------------------------------------------------------------===//
//
// This source file is part of the SwiftNIO open source project
//
// Copyright (c) 2022 Apple Inc. and the SwiftNIO project authors
// Licensed under Apache License v2.0
//
// See LICENSE.txt for license information
// See CONTRIBUTORS.txt for the list of SwiftNIO project authors
//
// SPDX-License-Identifier: Apache-2.0
//
//===----------------------------------------------------------------------===//
import NIOCore
import DequeModule
import Atomics
@available(macOS 10.15, iOS 13, tvOS 13, watchOS 6, *)
final class NIOAsyncSequenceProducerBenchmark: AsyncBenchmark, NIOAsyncSequenceProducerDelegate, @unchecked Sendable {
fileprivate typealias SequenceProducer = NIOThrowingAsyncSequenceProducer<Int, Error, NIOAsyncSequenceProducerBackPressureStrategies.HighLowWatermark, NIOAsyncSequenceProducerBenchmark>
private let iterations: Int
private var iterator: SequenceProducer.AsyncIterator!
private var source: SequenceProducer.Source!
private let elements = Array(repeating: 1, count: 1000)
init(iterations: Int) {
self.iterations = iterations
}
func setUp() async throws {
let producer = SequenceProducer.makeSequence(
backPressureStrategy: .init(lowWatermark: 100, highWatermark: 500),
finishOnDeinit: false,
delegate: self
)
self.iterator = producer.sequence.makeAsyncIterator()
self.source = producer.source
}
func tearDown() {
self.iterator = nil
self.source = nil
}
func run() async throws -> Int {
var counter = 0
while let i = try await self.iterator.next(), counter < self.iterations {
counter += i
}
return counter
}
func produceMore() {
_ = self.source.yield(contentsOf: self.elements)
}
func didTerminate() {}
}
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