tanhakabir
55 lines
2.4 KiB
Swift
55 lines
2.4 KiB
Swift
//
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// Data.swift
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// SwiftAudioPlayer
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//
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// Created by Tanha Kabir on 2019-11-29.
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// Copyright © 2019 Tanha Kabir, Jon Mercer
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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import Foundation
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extension Data {
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// Introduced in Swift 5, withUnsafeBytes using UnsafePointers is deprecated
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// https://mjtsai.com/blog/2019/03/27/swift-5-released/
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func accessBytes<R>(_ body: (UnsafePointer<UInt8>) throws -> R) rethrows -> R {
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return try withUnsafeBytes { (rawBufferPointer: UnsafeRawBufferPointer) -> R in
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let unsafeBufferPointer = rawBufferPointer.bindMemory(to: UInt8.self)
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guard let unsafePointer = unsafeBufferPointer.baseAddress else {
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Log.error("")
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var int: UInt8 = 0
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return try body(&int)
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}
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return try body(unsafePointer)
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}
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}
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mutating func accessMutableBytes<R>(_ body: (UnsafeMutablePointer<UInt8>) throws -> R) rethrows -> R {
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return try withUnsafeMutableBytes { (rawBufferPointer: UnsafeMutableRawBufferPointer) -> R in
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let unsafeMutableBufferPointer = rawBufferPointer.bindMemory(to: UInt8.self)
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guard let unsafeMutablePointer = unsafeMutableBufferPointer.baseAddress else {
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Log.error("")
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var int: UInt8 = 0
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return try body(&int)
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}
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return try body(unsafeMutablePointer)
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}
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}
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}
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