修复各种扩展中`taskIdentifier`的线程安全问题 它在不同线程中调用可能出现崩溃问题

Demo/Demo/Kingfisher-Demo/ViewControllers/ProgressiveJPEGViewController.swift

@@ -64,8 +64,14 @@ class ProgressiveJPEGViewController: UIViewController {
                 self.progressLabel.text = "\(receivedSize) / \(totalSize)"
             },
             completionHandler: { result in
-                print(result)
-                print("Finished")
+                do {
+                    let value = try result.get()
+                    print(value)
+                    print("Finished")
+                    
+                } catch {
+                    self.progressLabel.text = error.localizedDescription
+                }
             }
         )
     }

Demo/Kingfisher-Demo.xcodeproj/project.pbxproj

@@ -474,30 +474,30 @@
 				TargetAttributes = {
 					4B2944541C3D03880088C3E7 = {
 						CreatedOnToolsVersion = 7.2;
-						DevelopmentTeam = T499X543T7;
+						DevelopmentTeam = J3LFY9VS6Z;
 						LastSwiftMigration = 0900;
 						ProvisioningStyle = Automatic;
 					};
 					D13F49C11BEDA53F00CE335D = {
 						CreatedOnToolsVersion = 7.1;
-						DevelopmentTeam = T499X543T7;
+						DevelopmentTeam = J3LFY9VS6Z;
 						LastSwiftMigration = 0900;
 						ProvisioningStyle = Automatic;
 					};
 					D1679A381C4E78B20020FD12 = {
 						CreatedOnToolsVersion = 7.2;
-						DevelopmentTeam = 683UGRW72Z;
+						DevelopmentTeam = J3LFY9VS6Z;
 						LastSwiftMigration = 0900;
 						ProvisioningStyle = Automatic;
 					};
 					D1679A441C4E78B20020FD12 = {
 						CreatedOnToolsVersion = 7.2;
-						DevelopmentTeam = 683UGRW72Z;
+						DevelopmentTeam = J3LFY9VS6Z;
 						LastSwiftMigration = 0920;
 					};
 					D1ED2D0A1AD2CFA600CFC3EB = {
 						CreatedOnToolsVersion = 6.2;
-						DevelopmentTeam = T499X543T7;
+						DevelopmentTeam = J3LFY9VS6Z;
 						LastSwiftMigration = 0900;
 					};
 				};
@@ -696,7 +696,7 @@
 				CODE_SIGN_STYLE = Automatic;
 				COMBINE_HIDPI_IMAGES = YES;
 				DEBUG_INFORMATION_FORMAT = dwarf;
-				DEVELOPMENT_TEAM = T499X543T7;
+				DEVELOPMENT_TEAM = J3LFY9VS6Z;
 				GCC_NO_COMMON_BLOCKS = YES;
 				INFOPLIST_FILE = "Demo/Kingfisher-macOS-Demo/Info.plist";
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/../Frameworks";
@@ -715,7 +715,7 @@
 				CODE_SIGN_STYLE = Automatic;
 				COMBINE_HIDPI_IMAGES = YES;
 				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
-				DEVELOPMENT_TEAM = T499X543T7;
+				DEVELOPMENT_TEAM = J3LFY9VS6Z;
 				GCC_NO_COMMON_BLOCKS = YES;
 				INFOPLIST_FILE = "Demo/Kingfisher-macOS-Demo/Info.plist";
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/../Frameworks";
@@ -735,7 +735,7 @@
 				"CODE_SIGN_IDENTITY[sdk=appletvos*]" = "iPhone Developer";
 				CODE_SIGN_STYLE = Automatic;
 				DEBUG_INFORMATION_FORMAT = dwarf;
-				DEVELOPMENT_TEAM = T499X543T7;
+				DEVELOPMENT_TEAM = J3LFY9VS6Z;
 				GCC_NO_COMMON_BLOCKS = YES;
 				INFOPLIST_FILE = "Demo/Kingfisher-tvOS-Demo/Info.plist";
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
@@ -755,7 +755,7 @@
 				"CODE_SIGN_IDENTITY[sdk=appletvos*]" = "iPhone Developer";
 				CODE_SIGN_STYLE = Automatic;
 				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
-				DEVELOPMENT_TEAM = T499X543T7;
+				DEVELOPMENT_TEAM = J3LFY9VS6Z;
 				GCC_NO_COMMON_BLOCKS = YES;
 				INFOPLIST_FILE = "Demo/Kingfisher-tvOS-Demo/Info.plist";
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
@@ -773,7 +773,7 @@
 			buildSettings = {
 				CLANG_ENABLE_MODULES = YES;
 				DEBUG_INFORMATION_FORMAT = dwarf;
-				DEVELOPMENT_TEAM = 683UGRW72Z;
+				DEVELOPMENT_TEAM = J3LFY9VS6Z;
 				GCC_NO_COMMON_BLOCKS = YES;
 				INFOPLIST_FILE = "Demo/Kingfisher-watchOS-Demo Extension/Info.plist";
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @executable_path/../../Frameworks";
@@ -791,7 +791,7 @@
 			buildSettings = {
 				CLANG_ENABLE_MODULES = YES;
 				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
-				DEVELOPMENT_TEAM = 683UGRW72Z;
+				DEVELOPMENT_TEAM = J3LFY9VS6Z;
 				GCC_NO_COMMON_BLOCKS = YES;
 				INFOPLIST_FILE = "Demo/Kingfisher-watchOS-Demo Extension/Info.plist";
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @executable_path/../../Frameworks";
@@ -813,7 +813,7 @@
 				"CODE_SIGN_IDENTITY[sdk=watchos*]" = "iPhone Developer";
 				CODE_SIGN_STYLE = Automatic;
 				DEBUG_INFORMATION_FORMAT = dwarf;
-				DEVELOPMENT_TEAM = 683UGRW72Z;
+				DEVELOPMENT_TEAM = J3LFY9VS6Z;
 				GCC_NO_COMMON_BLOCKS = YES;
 				IBSC_MODULE = Kingfisher_watchOS_Demo_Extension;
 				INFOPLIST_FILE = "Demo/Kingfisher-watchOS-Demo/Info.plist";
@@ -835,7 +835,7 @@
 				"CODE_SIGN_IDENTITY[sdk=watchos*]" = "iPhone Developer";
 				CODE_SIGN_STYLE = Automatic;
 				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
-				DEVELOPMENT_TEAM = 683UGRW72Z;
+				DEVELOPMENT_TEAM = J3LFY9VS6Z;
 				GCC_NO_COMMON_BLOCKS = YES;
 				IBSC_MODULE = Kingfisher_watchOS_Demo_Extension;
 				INFOPLIST_FILE = "Demo/Kingfisher-watchOS-Demo/Info.plist";
@@ -966,7 +966,7 @@
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CODE_SIGN_IDENTITY = "iPhone Developer";
-				DEVELOPMENT_TEAM = T499X543T7;
+				DEVELOPMENT_TEAM = J3LFY9VS6Z;
 				INFOPLIST_FILE = "Demo/Kingfisher-Demo/Info.plist";
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = "com.onevcat.$(PRODUCT_NAME:rfc1034identifier)";
@@ -979,7 +979,7 @@
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CODE_SIGN_IDENTITY = "iPhone Developer";
-				DEVELOPMENT_TEAM = T499X543T7;
+				DEVELOPMENT_TEAM = J3LFY9VS6Z;
 				INFOPLIST_FILE = "Demo/Kingfisher-Demo/Info.plist";
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = "com.onevcat.$(PRODUCT_NAME:rfc1034identifier)";

Sources/Extensions/ImageView+Kingfisher.swift

@@ -301,6 +301,8 @@ extension KingfisherWrapper where Base: ImageView {
     public private(set) var taskIdentifier: Source.Identifier.Value? {
         get {
             let box: Box<Source.Identifier.Value>? = getAssociatedObject(base, &taskIdentifierKey)
+            defer { objc_sync_exit(self) }
+            objc_sync_enter(self)
             return box?.value
         }
         set {

Sources/Extensions/NSButton+Kingfisher.swift

@@ -301,6 +301,8 @@ extension KingfisherWrapper where Base: NSButton {
     public private(set) var taskIdentifier: Source.Identifier.Value? {
         get {
             let box: Box<Source.Identifier.Value>? = getAssociatedObject(base, &taskIdentifierKey)
+            defer { objc_sync_exit(self) }
+            objc_sync_enter(self)
             return box?.value
         }
         set {
@@ -317,6 +319,8 @@ extension KingfisherWrapper where Base: NSButton {
     public private(set) var alternateTaskIdentifier: Source.Identifier.Value? {
         get {
             let box: Box<Source.Identifier.Value>? = getAssociatedObject(base, &alternateTaskIdentifierKey)
+            defer { objc_sync_exit(self) }
+            objc_sync_enter(self)
             return box?.value
         }
         set {

Sources/Extensions/UIButton+Kingfisher.swift

@@ -320,10 +320,14 @@ extension KingfisherWrapper where Base: UIButton {
     private typealias TaskIdentifier = Box<[UInt: Source.Identifier.Value]>
     
     public func taskIdentifier(for state: UIControl.State) -> Source.Identifier.Value? {
+        defer { objc_sync_exit(self) }
+        objc_sync_enter(self)
         return taskIdentifierInfo.value[state.rawValue]
     }
 
     private func setTaskIdentifier(_ identifier: Source.Identifier.Value?, for state: UIControl.State) {
+        defer { objc_sync_exit(self) }
+        objc_sync_enter(self)
         taskIdentifierInfo.value[state.rawValue] = identifier
     }
     
@@ -348,10 +352,14 @@ private var backgroundImageTaskKey: Void?
 extension KingfisherWrapper where Base: UIButton {
     
     public func backgroundTaskIdentifier(for state: UIControl.State) -> Source.Identifier.Value? {
+        defer { objc_sync_exit(self) }
+        objc_sync_enter(self)
         return backgroundTaskIdentifierInfo.value[state.rawValue]
     }
     
     private func setBackgroundTaskIdentifier(_ identifier: Source.Identifier.Value?, for state: UIControl.State) {
+        defer { objc_sync_exit(self) }
+        objc_sync_enter(self)
         backgroundTaskIdentifierInfo.value[state.rawValue] = identifier
     }
     

Sources/Extensions/WKInterfaceImage+Kingfisher.swift

@@ -176,6 +176,8 @@ extension KingfisherWrapper where Base: WKInterfaceImage {
     public private(set) var taskIdentifier: Source.Identifier.Value? {
         get {
             let box: Box<Source.Identifier.Value>? = getAssociatedObject(base, &taskIdentifierKey)
+            defer { objc_sync_exit(self) }
+            objc_sync_enter(self)
             return box?.value
         }
         set {