Added internal DispatchQueue extension set of convenience properties and methods.

Alamofire.xcodeproj/project.pbxproj

@@ -53,6 +53,10 @@
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 		4C3D00591C66A8B900D1F709 /* NetworkReachabilityManagerTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4C3D00571C66A8B900D1F709 /* NetworkReachabilityManagerTests.swift */; };
 		4C3D005A1C66A8B900D1F709 /* NetworkReachabilityManagerTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4C3D00571C66A8B900D1F709 /* NetworkReachabilityManagerTests.swift */; };
+		4C43669B1D7BB93D00C38AAD /* DispatchQueue+Alamofire.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4C43669A1D7BB93D00C38AAD /* DispatchQueue+Alamofire.swift */; };
+		4C43669C1D7BB93D00C38AAD /* DispatchQueue+Alamofire.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4C43669A1D7BB93D00C38AAD /* DispatchQueue+Alamofire.swift */; };
+		4C43669D1D7BB93D00C38AAD /* DispatchQueue+Alamofire.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4C43669A1D7BB93D00C38AAD /* DispatchQueue+Alamofire.swift */; };
+		4C43669E1D7BB93D00C38AAD /* DispatchQueue+Alamofire.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4C43669A1D7BB93D00C38AAD /* DispatchQueue+Alamofire.swift */; };
 		4C4CBE7B1BAF700C0024D659 /* String+AlamofireTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4C4CBE7A1BAF700C0024D659 /* String+AlamofireTests.swift */; };
 		4C4CBE7C1BAF700C0024D659 /* String+AlamofireTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4C4CBE7A1BAF700C0024D659 /* String+AlamofireTests.swift */; };
 		4C574E6A1C67D207000B3128 /* Timeline.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4C574E691C67D207000B3128 /* Timeline.swift */; };
@@ -269,6 +273,7 @@
 		4C341BB91B1A865A00C1B34D /* CacheTests.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = CacheTests.swift; sourceTree = "<group>"; };
 		4C3D00531C66A63000D1F709 /* NetworkReachabilityManager.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = NetworkReachabilityManager.swift; sourceTree = "<group>"; };
 		4C3D00571C66A8B900D1F709 /* NetworkReachabilityManagerTests.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = NetworkReachabilityManagerTests.swift; sourceTree = "<group>"; };
+		4C43669A1D7BB93D00C38AAD /* DispatchQueue+Alamofire.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = "DispatchQueue+Alamofire.swift"; sourceTree = "<group>"; };
 		4C4CBE7A1BAF700C0024D659 /* String+AlamofireTests.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = "String+AlamofireTests.swift"; sourceTree = "<group>"; };
 		4C574E691C67D207000B3128 /* Timeline.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = Timeline.swift; sourceTree = "<group>"; };
 		4C811F8C1B51856D00E0F59A /* ServerTrustPolicy.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = ServerTrustPolicy.swift; sourceTree = "<group>"; };
@@ -495,6 +500,14 @@
 			name = "Signed by CA2";
 			sourceTree = "<group>";
 		};
+		4C4366991D7BB92700C38AAD /* Extensions */ = {
+			isa = PBXGroup;
+			children = (
+				4C43669A1D7BB93D00C38AAD /* DispatchQueue+Alamofire.swift */,
+			);
+			name = Extensions;
+			sourceTree = "<group>";
+		};
 		4C7C8D201B9D0D7300948136 /* Extensions */ = {
 			isa = PBXGroup;
 			children = (
@@ -599,6 +612,7 @@
 			children = (
 				F897FF4019AA800700AB5182 /* Alamofire.swift */,
 				4CDE2C481AF8A14A00BABAE5 /* Core */,
+				4C4366991D7BB92700C38AAD /* Extensions */,
 				4CDE2C491AF8A14E00BABAE5 /* Features */,
 				F8111E3619A95C8B0040E7D1 /* Supporting Files */,
 			);
@@ -1027,6 +1041,7 @@
 				4CF627091BA7CBF60011A099 /* SessionManager.swift in Sources */,
 				4CF6270F1BA7CBF60011A099 /* ResponseSerialization.swift in Sources */,
 				4CF6270B1BA7CBF60011A099 /* Request.swift in Sources */,
+				4C43669D1D7BB93D00C38AAD /* DispatchQueue+Alamofire.swift in Sources */,
 				4C3D00561C66A63000D1F709 /* NetworkReachabilityManager.swift in Sources */,
 				4CFCFE3B1D56E8D900A76388 /* TaskDelegate.swift in Sources */,
 				4CF6270A1BA7CBF60011A099 /* ParameterEncoding.swift in Sources */,
@@ -1077,6 +1092,7 @@
 				4CB9282A1C66BFBC00CE5F08 /* Notifications.swift in Sources */,
 				4DD67C251A5C590000ED2280 /* Alamofire.swift in Sources */,
 				4C23EB441B327C5B0090E0BC /* MultipartFormData.swift in Sources */,
+				4C43669C1D7BB93D00C38AAD /* DispatchQueue+Alamofire.swift in Sources */,
 				4C811F8E1B51856D00E0F59A /* ServerTrustPolicy.swift in Sources */,
 				4CFCFE3A1D56E8D900A76388 /* TaskDelegate.swift in Sources */,
 				4C3D00551C66A63000D1F709 /* NetworkReachabilityManager.swift in Sources */,
@@ -1100,6 +1116,7 @@
 				4C0B62531BB1001C009302D3 /* Response.swift in Sources */,
 				4CB9282C1C66BFBC00CE5F08 /* Notifications.swift in Sources */,
 				4CEC605B1B745C9100E684F4 /* Result.swift in Sources */,
+				4C43669E1D7BB93D00C38AAD /* DispatchQueue+Alamofire.swift in Sources */,
 				E4202FD41B667AA100C997FB /* Alamofire.swift in Sources */,
 				4CFCFE3C1D56E8D900A76388 /* TaskDelegate.swift in Sources */,
 				E4202FD51B667AA100C997FB /* MultipartFormData.swift in Sources */,
@@ -1123,6 +1140,7 @@
 				F897FF4119AA800700AB5182 /* Alamofire.swift in Sources */,
 				4C23EB431B327C5B0090E0BC /* MultipartFormData.swift in Sources */,
 				4C811F8D1B51856D00E0F59A /* ServerTrustPolicy.swift in Sources */,
+				4C43669B1D7BB93D00C38AAD /* DispatchQueue+Alamofire.swift in Sources */,
 				4C3D00541C66A63000D1F709 /* NetworkReachabilityManager.swift in Sources */,
 				4CFCFE391D56E8D900A76388 /* TaskDelegate.swift in Sources */,
 				4CDE2C431AF89F0900BABAE5 /* Validation.swift in Sources */,

Source/DispatchQueue+Alamofire.swift

@@ -0,0 +1,36 @@
+//
+//  DispatchQueue+Alamofire.swift
+//
+//  Copyright (c) 2014-2016 Alamofire Software Foundation (http://alamofire.org/)
+//
+//  Permission is hereby granted, free of charge, to any person obtaining a copy
+//  of this software and associated documentation files (the "Software"), to deal
+//  in the Software without restriction, including without limitation the rights
+//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+//  copies of the Software, and to permit persons to whom the Software is
+//  furnished to do so, subject to the following conditions:
+//
+//  The above copyright notice and this permission notice shall be included in
+//  all copies or substantial portions of the Software.
+//
+//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+//  THE SOFTWARE.
+//
+
+import Dispatch
+
+extension DispatchQueue {
+    static var userInteractive: DispatchQueue { return DispatchQueue.global(qos: .userInteractive) }
+    static var userInitiated: DispatchQueue { return DispatchQueue.global(qos: .userInitiated) }
+    static var utility: DispatchQueue { return DispatchQueue.global(qos: .utility) }
+    static var background: DispatchQueue { return DispatchQueue.global(qos: .background) }
+
+    func after(_ delay: TimeInterval, execute closure: @escaping () -> Void) {
+        asyncAfter(deadline: .now() + delay, execute: closure)
+    }
+}