removed objc exports

Signed-off-by: Yehor Popovych <[email protected]>

Author: ypopovych

Kronos.xcodeproj/project.pbxproj

@@ -11,7 +11,6 @@
 		26447D7D1D6E54D400159BEE /* DNSResolver.swift in Sources */ = {isa = PBXBuildFile; fileRef = 26447D741D6E54D400159BEE /* DNSResolver.swift */; };
 		26447D7E1D6E54D400159BEE /* InternetAddress.swift in Sources */ = {isa = PBXBuildFile; fileRef = 26447D751D6E54D400159BEE /* InternetAddress.swift */; };
 		26447D7F1D6E54D400159BEE /* Data+Bytes.swift in Sources */ = {isa = PBXBuildFile; fileRef = 26447D761D6E54D400159BEE /* Data+Bytes.swift */; };
-		26447D801D6E54D400159BEE /* NSTimer+ClosureKit.swift in Sources */ = {isa = PBXBuildFile; fileRef = 26447D771D6E54D400159BEE /* NSTimer+ClosureKit.swift */; };
 		26447D811D6E54D400159BEE /* NTPClient.swift in Sources */ = {isa = PBXBuildFile; fileRef = 26447D781D6E54D400159BEE /* NTPClient.swift */; };
 		26447D821D6E54D400159BEE /* NTPPacket.swift in Sources */ = {isa = PBXBuildFile; fileRef = 26447D791D6E54D400159BEE /* NTPPacket.swift */; };
 		26447D831D6E54D400159BEE /* NTPProtocol.swift in Sources */ = {isa = PBXBuildFile; fileRef = 26447D7A1D6E54D400159BEE /* NTPProtocol.swift */; };
@@ -41,7 +40,6 @@
 		26447D741D6E54D400159BEE /* DNSResolver.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = DNSResolver.swift; sourceTree = "<group>"; };
 		26447D751D6E54D400159BEE /* InternetAddress.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = InternetAddress.swift; sourceTree = "<group>"; };
 		26447D761D6E54D400159BEE /* Data+Bytes.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = "Data+Bytes.swift"; sourceTree = "<group>"; };
-		26447D771D6E54D400159BEE /* NSTimer+ClosureKit.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = "NSTimer+ClosureKit.swift"; sourceTree = "<group>"; };
 		26447D781D6E54D400159BEE /* NTPClient.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = NTPClient.swift; sourceTree = "<group>"; };
 		26447D791D6E54D400159BEE /* NTPPacket.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = NTPPacket.swift; sourceTree = "<group>"; };
 		26447D7A1D6E54D400159BEE /* NTPProtocol.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = NTPProtocol.swift; sourceTree = "<group>"; };
@@ -118,7 +116,6 @@
 				26447D741D6E54D400159BEE /* DNSResolver.swift */,
 				26447D751D6E54D400159BEE /* InternetAddress.swift */,
 				26447D761D6E54D400159BEE /* Data+Bytes.swift */,
-				26447D771D6E54D400159BEE /* NSTimer+ClosureKit.swift */,
 				26447D781D6E54D400159BEE /* NTPClient.swift */,
 				26447D791D6E54D400159BEE /* NTPPacket.swift */,
 				26447D7A1D6E54D400159BEE /* NTPProtocol.swift */,
@@ -249,7 +246,6 @@
 				26447D7F1D6E54D400159BEE /* Data+Bytes.swift in Sources */,
 				26447D841D6E54D400159BEE /* TimeFreeze.swift in Sources */,
 				26447D821D6E54D400159BEE /* NTPPacket.swift in Sources */,
-				26447D801D6E54D400159BEE /* NSTimer+ClosureKit.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};

Sources/DNSResolver.swift

@@ -51,29 +51,25 @@ final class DNSResolver {
                                                 retain: nil, release: nil, copyDescription: kCopyNoOperation)
 
         let hostReference = CFHostCreateWithName(kCFAllocatorDefault, host as CFString).takeUnretainedValue()
-        resolver.timer = Timer.scheduledTimer(timeInterval: timeout, target: resolver,
-                                              selector: #selector(DNSResolver.onTimeout),
-                                              userInfo: hostReference, repeats: false)
+        
+        resolver.timer = Timer.scheduledTimer(withTimeInterval: timeout, repeats: false) { [unowned resolver] _ in
+            resolver.onTimeout(hostReference: hostReference)
+        }
 
         CFHostSetClient(hostReference, callback, &clientContext)
         CFHostScheduleWithRunLoop(hostReference, CFRunLoopGetMain(), CFRunLoopMode.commonModes.rawValue)
         CFHostStartInfoResolution(hostReference, .addresses, nil)
     }
 
-    @objc
-    private func onTimeout() {
+    private func onTimeout(hostReference: CFHost) {
         defer {
             self.completion?([])
+            self.timer = nil
 
             // Manually release the previously retained self.
             Unmanaged.passUnretained(self).release()
         }
 
-        guard let userInfo = self.timer?.userInfo else {
-            return
-        }
-
-        let hostReference = unsafeBitCast(userInfo as AnyObject, to: CFHost.self)
         CFHostCancelInfoResolution(hostReference, .addresses)
         CFHostUnscheduleFromRunLoop(hostReference, CFRunLoopGetMain(), CFRunLoopMode.commonModes.rawValue)
         CFHostSetClient(hostReference, nil, nil)

Sources/NSTimer+ClosureKit.swift

@@ -108,7 +108,7 @@ final class NTPClient {
             completion: UnsafeMutableRawPointer(retainedCallback.toOpaque())
         )
 
-        timer = BlockTimer.scheduledTimer(withTimeInterval: timeout, repeated: true) { _ in
+        timer = Timer.scheduledTimer(withTimeInterval: timeout, repeats: true) { _ in
             bridgeCallback(nil, TimeInterval.infinity)
             retainedCallback.release()
 

Sources/NTPClient.swift

@@ -5,7 +5,7 @@ final class DNSResolverTests: XCTestCase {
 
     func testResolveOneIP() {
         let expectation = self.expectation(description: "Query host's DNS for a single IP")
-        DNSResolver.resolve(host: "test.com") { addresses in
+        DNSResolver.resolve(host: "httpbin.net") { addresses in
             XCTAssertEqual(addresses.count, 1)
             expectation.fulfill()
         }