--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/javauis/lcdui_akn/javalcdui/javasrc/javax/microedition/lcdui/AsyncCall.java	Tue Apr 27 16:30:29 2010 +0300
@@ -0,0 +1,82 @@
+/*
+* Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:
+*
+*/
+
+package javax.microedition.lcdui;
+
+/**
+ * Condition variable used to track completion of asynchronous
+ * requests to the server.
+ */
+class AsyncCall
+{
+    private static final int KRequestPending = 0x80000000;
+
+    /**
+     * Limit of wait in waitForRequest().
+     * 1/25s is close to human persistance of vision, so
+     * users probably won't notice the glitch.
+     *
+     * See comment in waitForRequest().
+     */
+    private static final long TIMEOUT = 40; // == 1/25 second
+
+    private int     iStatus;
+    private int     iWaiting;
+
+    public AsyncCall()
+    {
+    }
+
+    public final synchronized void request()
+    {
+        iStatus = KRequestPending;
+    }
+
+    public final synchronized void complete(int aStatus)
+    {
+        iStatus = aStatus;
+
+        if (iWaiting > 0)
+        {
+            notifyAll();
+        }
+    }
+
+    public final boolean isPending()
+    {
+        return (iStatus == KRequestPending);
+    }
+
+    public final synchronized int waitForRequest()
+    {
+        while (isPending())
+        {
+            ++iWaiting;
+            try
+            {
+                wait(TIMEOUT);
+            }
+            catch (InterruptedException e)
+            {
+                e.printStackTrace();
+            }
+            --iWaiting;
+        }
+        return iStatus;
+    }
+}
+