--- a/Implab/Parallels/AsyncPool.cs	Tue Oct 14 09:30:45 2014 +0400
+++ b/Implab/Parallels/AsyncPool.cs	Wed Oct 22 18:37:56 2014 +0400
@@ -14,15 +14,17 @@
 
 		public static IPromise<T> Invoke<T>(Func<T> func) {
 			var p = new Promise<T>();
-            var caller = TraceContext.Snapshot();
+            var caller = TraceContext.Instance.CurrentOperation;
 
 			ThreadPool.QueueUserWorkItem(param => {
-                TraceContext.Fork(caller);
+                TraceContext.Instance.EnterLogicalOperation(caller,false);
 				try {
 					p.Resolve(func());
 				} catch(Exception e) {
 					p.Reject(e);
-				}
+                } finally {
+                    TraceContext.Instance.Leave();
+                }
 			});
 
 			return p;
@@ -31,14 +33,16 @@
         public static IPromise<T> InvokeNewThread<T>(Func<T> func) {
             var p = new Promise<T>();
 
-            var caller = TraceContext.Snapshot();
+            var caller = TraceContext.Instance.CurrentOperation;
 
             var worker = new Thread(() => {
-                TraceContext.Fork(caller);
+                TraceContext.Instance.EnterLogicalOperation(caller,false);
                 try {
                     p.Resolve(func());
                 } catch (Exception e) {
                     p.Reject(e);
+                } finally {
+                    TraceContext.Instance.Leave();
                 }
             });
             worker.IsBackground = true;
@@ -51,15 +55,17 @@
         public static IPromise InvokeNewThread(Action func) {
             var p = new Promise<object>();
 
-            var caller = TraceContext.Snapshot();
+            var caller = TraceContext.Instance.CurrentOperation;
 
             var worker = new Thread(() => {
-                TraceContext.Fork(caller);
+                TraceContext.Instance.EnterLogicalOperation(caller,false);
                 try {
                     func();
                     p.Resolve();
                 } catch (Exception e) {
                     p.Reject(e);
+                } finally {
+                    TraceContext.Instance.Leave();
                 }
             });
             worker.IsBackground = true;