Rename Sources/GCDLock.swift to Sources/Swift/GCDLock.swift

Package.swift

@@ -0,0 +1,32 @@
+// swift-tools-version:5.6
+import PackageDescription
+
+let package = Package(
+    name: "TrueTime",
+    platforms: [
+        .iOS(.v15),  // iOS 10.0 이상 지원
+    ],
+    products: [
+        .library(
+            name: "TrueTime",
+            targets: ["TrueTime"]),
+        .library(
+            name: "CTrueTime",
+            targets: ["CTrueTime"]
+        )
+
+    ],
+    dependencies: [],
+
+    targets: [
+        .target(
+            name: "TrueTime",
+            dependencies: ["CTrueTime"],
+            path: "Sources/Swift"
+        ),
+        .systemLibrary(
+            name: "CTrueTime",
+            path: "Sources/CTrueTime"
+        )
+    ]
+)

Sources/Endian.swift → Sources/Swift/Endian.swift

@@ -7,6 +7,7 @@
 //
 
 import Foundation
+import CTrueTime
 
 protocol NetworkOrderConvertible {
     var byteSwapped: Self { get }

Sources/NTPClient.swift → Sources/Swift/NTPClient.swift

@@ -6,6 +6,9 @@
 //  Copyright © 2016 Instacart. All rights reserved.
 //
 
+import Foundation
+import CTrueTime
+
 struct NTPConfig {
     let timeout: TimeInterval
     let maxRetries: Int

Sources/NTPConnection.swift → Sources/Swift/NTPConnection.swift

@@ -7,6 +7,7 @@
 //
 
 import Foundation
+import CTrueTime
 
 typealias NTPConnectionCallback = (NTPConnection, FrozenNetworkTimeResult) -> Void
 

Sources/NTPExtensions.swift → Sources/Swift/NTPExtensions.swift

@@ -7,6 +7,7 @@
 //
 
 import Foundation
+import CTrueTime
 
 public extension timeval {
     static func uptime() -> timeval {
@@ -94,7 +95,7 @@ extension ByteRepresentable {
 extension ntp_packet_t: ByteRepresentable {}
 extension sockaddr_in: ByteRepresentable {}
 extension sockaddr_in6: ByteRepresentable {}
-extension sockaddr_in6: CustomStringConvertible {
+extension sockaddr_in6: @retroactive CustomStringConvertible {
     public var description: String {
         var buffer = [Int8](repeating: 0, count: Int(INET6_ADDRSTRLEN))
         var addr = sin6_addr
@@ -106,7 +107,7 @@ extension sockaddr_in6: CustomStringConvertible {
     }
 }
 
-extension sockaddr_in: CustomStringConvertible {
+extension sockaddr_in: @retroactive CustomStringConvertible {
     public var description: String {
         let host = String(cString: inet_ntoa(sin_addr))
         let port = Int(sin_port)

Sources/NTPResponse.swift → Sources/Swift/NTPResponse.swift

@@ -7,6 +7,7 @@
 //
 
 import Foundation
+import CTrueTime
 
 struct NTPResponse {
     let packet: ntp_packet_t

Sources/ReferenceTime.swift → Sources/Swift/ReferenceTime.swift

@@ -6,6 +6,9 @@
 //  Copyright © 2016 Instacart. All rights reserved.
 //
 
+import Foundation
+import CTrueTime
+
 typealias FrozenTimeResult = Result<FrozenTime, NSError>
 typealias FrozenTimeCallback = (FrozenTimeResult) -> Void
 

Sources/TimedOperation.swift → Sources/Swift/TimedOperation.swift

@@ -8,7 +8,7 @@
 
 import Foundation
 
-protocol TimedOperation: class {
+protocol TimedOperation: AnyObject {
     var started: Bool { get }
     var timeout: TimeInterval { get }
     var timer: DispatchSourceTimer? { get set }

Sources/TrueTime.swift → Sources/Swift/TrueTime.swift

@@ -8,6 +8,13 @@
 
 import Foundation
 
+let TrueTimeErrorDomain = "com.instacart.TrueTimeErrorDomain"
+
+extension Notification.Name {
+    static let TrueTimeUpdated = Notification.Name.init("TrueTimeUpdatedNotification")
+}
+
+
 @objc public enum TrueTimeError: Int {
     case cannotFindHost
     case dnsLookupFailed
@@ -117,9 +124,9 @@ extension TrueTimeClient {
     @objc public func fetchIfNeeded(success: @escaping (ReferenceTime) -> Void,
                                     failure: ((NSError) -> Void)?,
                                     onQueue queue: DispatchQueue) {
-        fetchIfNeeded(queue: queue) { result in
+        fetchIfNeeded(queue: queue, completion:  { result in
             self.mapBridgedResult(result, success: success, failure: failure)
-        }
+        })
     }
 
     private func mapBridgedResult(_ result: ReferenceTimeResult,