diff --git a/Kit/module/reader.swift b/Kit/module/reader.swift
index f76f5a4a..a928aa0d 100644
--- a/Kit/module/reader.swift
+++ b/Kit/module/reader.swift
@@ -62,7 +62,18 @@ open class Reader<T>: NSObject, ReaderInternal_p {
     private var ready: Bool = false
     private var locked: Bool = true
     private var initlizalized: Bool = false
-    public var active: Bool = false
+    
+    private let variablesQueue = DispatchQueue(label: "eu.exelban.readerQueue")
+    
+    private var _active: Bool = false
+    public var active: Bool {
+        get {
+            self.variablesQueue.sync { self._active }
+        }
+        set {
+            self.variablesQueue.sync { self._active = newValue }
+        }
+    }
     
     private var history: [T]? = []
     
diff --git a/Stats.xcodeproj/project.pbxproj b/Stats.xcodeproj/project.pbxproj
index ec9728f7..005a8d14 100644
--- a/Stats.xcodeproj/project.pbxproj
+++ b/Stats.xcodeproj/project.pbxproj
@@ -3,7 +3,7 @@
 	archiveVersion = 1;
 	classes = {
 	};
-	objectVersion = 50;
+	objectVersion = 54;
 	objects = {
 
 /* Begin PBXBuildFile section */
@@ -1217,7 +1217,7 @@
 					New,
 				);
 				LastSwiftUpdateCheck = 1240;
-				LastUpgradeCheck = 1300;
+				LastUpgradeCheck = 1400;
 				ORGANIZATIONNAME = "Serhiy Mytrovtsiy";
 				TargetAttributes = {
 					9A11AACE266FD77F000C1C05 = {
@@ -1444,6 +1444,7 @@
 /* Begin PBXShellScriptBuildPhase section */
 		9A88E2672659002E00E2B7B0 /* ShellScript */ = {
 			isa = PBXShellScriptBuildPhase;
+			alwaysOutOfDate = 1;
 			buildActionMask = 2147483647;
 			files = (
 			);
@@ -1773,6 +1774,7 @@
 				CODE_SIGN_STYLE = Automatic;
 				COMBINE_HIDPI_IMAGES = YES;
 				CURRENT_PROJECT_VERSION = 1;
+				DEAD_CODE_STRIPPING = YES;
 				DEFINES_MODULE = YES;
 				DEVELOPMENT_TEAM = RP2S87B72W;
 				DYLIB_COMPATIBILITY_VERSION = 1;
@@ -1804,6 +1806,7 @@
 				CODE_SIGN_STYLE = Automatic;
 				COMBINE_HIDPI_IMAGES = YES;
 				CURRENT_PROJECT_VERSION = 1;
+				DEAD_CODE_STRIPPING = YES;
 				DEFINES_MODULE = YES;
 				DEVELOPMENT_TEAM = RP2S87B72W;
 				DYLIB_COMPATIBILITY_VERSION = 1;
@@ -1863,6 +1866,7 @@
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				CODE_SIGN_IDENTITY = "Mac Developer";
 				COPY_PHASE_STRIP = NO;
+				DEAD_CODE_STRIPPING = YES;
 				DEBUG_INFORMATION_FORMAT = dwarf;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
 				ENABLE_TESTABILITY = YES;
@@ -1930,6 +1934,7 @@
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				CODE_SIGN_IDENTITY = "Mac Developer";
 				COPY_PHASE_STRIP = NO;
+				DEAD_CODE_STRIPPING = YES;
 				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
 				ENABLE_NS_ASSERTIONS = NO;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
@@ -1963,6 +1968,7 @@
 				CODE_SIGN_STYLE = Automatic;
 				COMBINE_HIDPI_IMAGES = YES;
 				CURRENT_PROJECT_VERSION = 180;
+				DEAD_CODE_STRIPPING = YES;
 				DEVELOPMENT_TEAM = RP2S87B72W;
 				ENABLE_HARDENED_RUNTIME = YES;
 				FRAMEWORK_SEARCH_PATHS = (
@@ -1996,6 +2002,7 @@
 				CODE_SIGN_STYLE = Automatic;
 				COMBINE_HIDPI_IMAGES = YES;
 				CURRENT_PROJECT_VERSION = 180;
+				DEAD_CODE_STRIPPING = YES;
 				DEVELOPMENT_TEAM = RP2S87B72W;
 				ENABLE_HARDENED_RUNTIME = YES;
 				FRAMEWORK_SEARCH_PATHS = (
@@ -2027,6 +2034,7 @@
 				CODE_SIGN_STYLE = Automatic;
 				COMBINE_HIDPI_IMAGES = YES;
 				CURRENT_PROJECT_VERSION = 1;
+				DEAD_CODE_STRIPPING = YES;
 				DEFINES_MODULE = YES;
 				DEVELOPMENT_TEAM = RP2S87B72W;
 				DYLIB_COMPATIBILITY_VERSION = 1;
@@ -2059,6 +2067,7 @@
 				CODE_SIGN_STYLE = Automatic;
 				COMBINE_HIDPI_IMAGES = YES;
 				CURRENT_PROJECT_VERSION = 1;
+				DEAD_CODE_STRIPPING = YES;
 				DEFINES_MODULE = YES;
 				DEVELOPMENT_TEAM = RP2S87B72W;
 				DYLIB_COMPATIBILITY_VERSION = 1;
@@ -2090,6 +2099,7 @@
 				CODE_SIGN_IDENTITY = "Apple Development";
 				CODE_SIGN_STYLE = Automatic;
 				COMBINE_HIDPI_IMAGES = YES;
+				DEAD_CODE_STRIPPING = YES;
 				DEVELOPMENT_ASSET_PATHS = "";
 				DEVELOPMENT_TEAM = RP2S87B72W;
 				ENABLE_HARDENED_RUNTIME = YES;
@@ -2115,6 +2125,7 @@
 				CODE_SIGN_IDENTITY = "Apple Development";
 				CODE_SIGN_STYLE = Automatic;
 				COMBINE_HIDPI_IMAGES = YES;
+				DEAD_CODE_STRIPPING = YES;
 				DEVELOPMENT_ASSET_PATHS = "";
 				DEVELOPMENT_TEAM = RP2S87B72W;
 				ENABLE_HARDENED_RUNTIME = YES;
@@ -2140,6 +2151,7 @@
 				CODE_SIGN_STYLE = Automatic;
 				COMBINE_HIDPI_IMAGES = YES;
 				CURRENT_PROJECT_VERSION = 1;
+				DEAD_CODE_STRIPPING = YES;
 				DEFINES_MODULE = YES;
 				DEVELOPMENT_TEAM = RP2S87B72W;
 				DYLIB_COMPATIBILITY_VERSION = 1;
@@ -2171,6 +2183,7 @@
 				CODE_SIGN_STYLE = Automatic;
 				COMBINE_HIDPI_IMAGES = YES;
 				CURRENT_PROJECT_VERSION = 1;
+				DEAD_CODE_STRIPPING = YES;
 				DEFINES_MODULE = YES;
 				DEVELOPMENT_TEAM = RP2S87B72W;
 				DYLIB_COMPATIBILITY_VERSION = 1;
@@ -2201,6 +2214,7 @@
 				CODE_SIGN_STYLE = Automatic;
 				COMBINE_HIDPI_IMAGES = YES;
 				CURRENT_PROJECT_VERSION = 1;
+				DEAD_CODE_STRIPPING = YES;
 				DEFINES_MODULE = YES;
 				DEVELOPMENT_TEAM = RP2S87B72W;
 				DYLIB_COMPATIBILITY_VERSION = 1;
@@ -2232,6 +2246,7 @@
 				CODE_SIGN_STYLE = Automatic;
 				COMBINE_HIDPI_IMAGES = YES;
 				CURRENT_PROJECT_VERSION = 1;
+				DEAD_CODE_STRIPPING = YES;
 				DEFINES_MODULE = YES;
 				DEVELOPMENT_TEAM = RP2S87B72W;
 				DYLIB_COMPATIBILITY_VERSION = 1;
@@ -2262,6 +2277,7 @@
 				CODE_SIGN_STYLE = Automatic;
 				COMBINE_HIDPI_IMAGES = YES;
 				CURRENT_PROJECT_VERSION = 1;
+				DEAD_CODE_STRIPPING = YES;
 				DEFINES_MODULE = YES;
 				DEVELOPMENT_TEAM = RP2S87B72W;
 				DYLIB_COMPATIBILITY_VERSION = 1;
@@ -2294,6 +2310,7 @@
 				CODE_SIGN_STYLE = Automatic;
 				COMBINE_HIDPI_IMAGES = YES;
 				CURRENT_PROJECT_VERSION = 1;
+				DEAD_CODE_STRIPPING = YES;
 				DEFINES_MODULE = YES;
 				DEVELOPMENT_TEAM = RP2S87B72W;
 				DYLIB_COMPATIBILITY_VERSION = 1;
@@ -2325,6 +2342,7 @@
 				CODE_SIGN_STYLE = Automatic;
 				COMBINE_HIDPI_IMAGES = YES;
 				CURRENT_PROJECT_VERSION = 1;
+				DEAD_CODE_STRIPPING = YES;
 				DEFINES_MODULE = YES;
 				DEVELOPMENT_TEAM = RP2S87B72W;
 				DYLIB_COMPATIBILITY_VERSION = 1;
@@ -2362,6 +2380,7 @@
 				CODE_SIGN_STYLE = Automatic;
 				COMBINE_HIDPI_IMAGES = YES;
 				CURRENT_PROJECT_VERSION = 1;
+				DEAD_CODE_STRIPPING = YES;
 				DEFINES_MODULE = YES;
 				DEVELOPMENT_TEAM = RP2S87B72W;
 				DYLIB_COMPATIBILITY_VERSION = 1;
@@ -2396,6 +2415,7 @@
 				BUNDLE_LOADER = "$(TEST_HOST)";
 				CODE_SIGN_STYLE = Automatic;
 				COMBINE_HIDPI_IMAGES = YES;
+				DEAD_CODE_STRIPPING = YES;
 				DEVELOPMENT_TEAM = RP2S87B72W;
 				INFOPLIST_FILE = Tests/Info.plist;
 				LD_RUNPATH_SEARCH_PATHS = (
@@ -2417,6 +2437,7 @@
 				BUNDLE_LOADER = "$(TEST_HOST)";
 				CODE_SIGN_STYLE = Automatic;
 				COMBINE_HIDPI_IMAGES = YES;
+				DEAD_CODE_STRIPPING = YES;
 				DEVELOPMENT_TEAM = RP2S87B72W;
 				INFOPLIST_FILE = Tests/Info.plist;
 				LD_RUNPATH_SEARCH_PATHS = (
@@ -2440,6 +2461,7 @@
 				CODE_SIGN_STYLE = Automatic;
 				COMBINE_HIDPI_IMAGES = YES;
 				CURRENT_PROJECT_VERSION = 1;
+				DEAD_CODE_STRIPPING = YES;
 				DEFINES_MODULE = YES;
 				DEVELOPMENT_TEAM = RP2S87B72W;
 				DYLIB_COMPATIBILITY_VERSION = 1;
@@ -2471,6 +2493,7 @@
 				CODE_SIGN_STYLE = Automatic;
 				COMBINE_HIDPI_IMAGES = YES;
 				CURRENT_PROJECT_VERSION = 1;
+				DEAD_CODE_STRIPPING = YES;
 				DEFINES_MODULE = YES;
 				DEVELOPMENT_TEAM = RP2S87B72W;
 				DYLIB_COMPATIBILITY_VERSION = 1;
@@ -2500,6 +2523,7 @@
 				CODE_SIGN_IDENTITY = "Apple Development";
 				CODE_SIGN_STYLE = Automatic;
 				CURRENT_PROJECT_VERSION = 1;
+				DEAD_CODE_STRIPPING = YES;
 				DEVELOPMENT_TEAM = RP2S87B72W;
 				ENABLE_HARDENED_RUNTIME = YES;
 				INFOPLIST_FILE = "$(SRCROOT)/SMC/Info.plist";
@@ -2521,6 +2545,7 @@
 				CODE_SIGN_IDENTITY = "Apple Development";
 				CODE_SIGN_STYLE = Automatic;
 				CURRENT_PROJECT_VERSION = 1;
+				DEAD_CODE_STRIPPING = YES;
 				DEVELOPMENT_TEAM = RP2S87B72W;
 				ENABLE_HARDENED_RUNTIME = YES;
 				INFOPLIST_FILE = "$(SRCROOT)/SMC/Info.plist";
@@ -2543,6 +2568,7 @@
 				CODE_SIGN_STYLE = Automatic;
 				COMBINE_HIDPI_IMAGES = YES;
 				CURRENT_PROJECT_VERSION = 1;
+				DEAD_CODE_STRIPPING = YES;
 				DEFINES_MODULE = YES;
 				DEVELOPMENT_TEAM = RP2S87B72W;
 				DYLIB_COMPATIBILITY_VERSION = 1;
@@ -2575,6 +2601,7 @@
 				CODE_SIGN_STYLE = Automatic;
 				COMBINE_HIDPI_IMAGES = YES;
 				CURRENT_PROJECT_VERSION = 1;
+				DEAD_CODE_STRIPPING = YES;
 				DEFINES_MODULE = YES;
 				DEVELOPMENT_TEAM = RP2S87B72W;
 				DYLIB_COMPATIBILITY_VERSION = 1;
@@ -2606,6 +2633,7 @@
 				CODE_SIGN_STYLE = Automatic;
 				COMBINE_HIDPI_IMAGES = YES;
 				CURRENT_PROJECT_VERSION = 1;
+				DEAD_CODE_STRIPPING = YES;
 				DEFINES_MODULE = YES;
 				DEVELOPMENT_ASSET_PATHS = "";
 				DEVELOPMENT_TEAM = RP2S87B72W;
@@ -2638,6 +2666,7 @@
 				CODE_SIGN_STYLE = Automatic;
 				COMBINE_HIDPI_IMAGES = YES;
 				CURRENT_PROJECT_VERSION = 1;
+				DEAD_CODE_STRIPPING = YES;
 				DEFINES_MODULE = YES;
 				DEVELOPMENT_ASSET_PATHS = "";
 				DEVELOPMENT_TEAM = RP2S87B72W;
diff --git a/Stats.xcodeproj/xcshareddata/xcschemes/SMC.xcscheme b/Stats.xcodeproj/xcshareddata/xcschemes/SMC.xcscheme
index 06dc2513..f5e00730 100644
--- a/Stats.xcodeproj/xcshareddata/xcschemes/SMC.xcscheme
+++ b/Stats.xcodeproj/xcshareddata/xcschemes/SMC.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1300"
+   LastUpgradeVersion = "1400"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/Stats.xcodeproj/xcshareddata/xcschemes/Stats.xcscheme b/Stats.xcodeproj/xcshareddata/xcschemes/Stats.xcscheme
index 853e0d56..b9aa464d 100644
--- a/Stats.xcodeproj/xcshareddata/xcschemes/Stats.xcscheme
+++ b/Stats.xcodeproj/xcshareddata/xcschemes/Stats.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1300"
+   LastUpgradeVersion = "1400"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"