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//===----------------------------------------------------------------------===//
//
// This source file is part of the SwiftNIO open source project
//
// Copyright (c) 2021 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
final class ByteBufferReadWriteMultipleIntegersBenchmark<I: FixedWidthInteger>: Benchmark {
private let iterations: Int
private let numberOfInts: Int
private var buffer: ByteBuffer = ByteBuffer()
init(iterations: Int, numberOfInts: Int) {
self.iterations = iterations
self.numberOfInts = numberOfInts
}
func setUp() throws {
self.buffer.reserveCapacity(self.numberOfInts * MemoryLayout<I>.size)
}
func tearDown() {
}
func run() throws -> Int {
var result: I = 0
for _ in 0..<self.iterations {
self.buffer.clear()
for i in I(0)..<I(10) {
self.buffer.writeInteger(i)
}
for _ in I(0)..<I(10) {
result = result &+ self.buffer.readInteger(as: I.self)!
}
}
precondition(result == I(self.iterations) * 45)
return self.buffer.readableBytes
}
}
final class ByteBufferMultiReadWriteTenIntegersBenchmark<I: FixedWidthInteger>: Benchmark {
private let iterations: Int
private var buffer: ByteBuffer = ByteBuffer()
init(iterations: Int) {
self.iterations = iterations
}
func setUp() throws {
self.buffer.reserveCapacity(10 * MemoryLayout<I>.size)
}
func tearDown() {
}
func run() throws -> Int {
var result: I = 0
for _ in 0..<self.iterations {
self.buffer.clear()
self.buffer.writeMultipleIntegers(
0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
as: (I, I, I, I, I, I, I, I, I, I).self
)
let value = self.buffer.readMultipleIntegers(as: (I, I, I, I, I, I, I, I, I, I).self)!
result = result &+ value.0
result = result &+ value.1
result = result &+ value.2
result = result &+ value.3
result = result &+ value.4
result = result &+ value.5
result = result &+ value.6
result = result &+ value.7
result = result &+ value.8
result = result &+ value.9
}
precondition(result == I(self.iterations) * 45)
return self.buffer.readableBytes
}
}
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