--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/javauis/javalegacyutils/inc/CJavaEventServer.h	Tue Apr 27 16:30:29 2010 +0300
@@ -0,0 +1,153 @@
+/*
+* Copyright (c) 1999-2001 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:
+*
+*/
+
+
+#ifndef CJAVAEVENTSERVER_H
+#define CJAVAEVENTSERVER_H
+
+#include <e32std.h>
+#include <e32cmn.h>
+
+#include "mevents.h"
+
+enum {EJessExecute,EJessExecuteTrap, EJessShutdown};
+
+class RJess : public RSessionBase
+{
+public:
+    TInt Connect(RServer2& aServer);
+    inline TInt Execute(TAny* aParam)
+    {
+        return SendReceive(EJessExecute,TIpcArgs(aParam));
+    }
+    inline TInt ExecuteTrap(TAny* aParam)
+    {
+        return SendReceive(EJessExecuteTrap,TIpcArgs(aParam));
+    }
+    inline TInt Shutdown()
+    {
+        return SendReceive(EJessShutdown, TIpcArgs());
+    }
+};
+
+class CJavaEventServer : public CBase
+{
+public:
+    ~CJavaEventServer();
+    static CJavaEventServer* NewL(const TDesC& aName,TThreadFunction aServerThread, TAny* aServerArg,
+                                  TUint aStackSize = 0, RAllocator* aHeap = 0);
+
+    // Notify Java dispatcher thread about new event, called from C++ thread
+    static void NotifyJavaCall(TInt aEvent, TInt aPriority);
+
+    // Cleanup the event server stuff, called from Java thread through JNI
+    static void Cleanup(RArray<TInt>& aServerHandles);
+
+    // Helper method to do tracing from the native to the Java side
+    static void Trace(JNIEnv& aJni, TInt aValue);
+
+    inline RJess& Session()
+    {
+        return iSession;
+    }
+    void PostEvent(CJavaEventBase* aEvent, TInt aPriority);
+    static TInt ServerThread(TAny* aParam);
+
+    void AddRef();
+    void RemoveRef();
+    void Shutdown();
+
+private:
+    CJavaEventServer();
+    void ConstructL(const TDesC& aUserName,TThreadFunction aServerThread, TAny* aServerArg,
+                    TUint aStackSize, RAllocator* aHeap);
+
+private:
+    TInt  iRef;
+    RJess iSession;
+    TBool iShutdown;
+    RCriticalSection iMutex;
+
+};
+
+// CIntQueue helper class implements an integer FIFO queue The implementation is based on
+// fixed-sized array, because we don't want any garbage to be collected here and we don't
+// want to grab all the memory due to some misbehaving midlet. Synchronization is provided
+// in putItem() and removeItem() functions so it's safe to call them from different threads
+
+class CIntQueue : public CBase
+{
+
+public:
+    virtual ~CIntQueue();
+
+    static CIntQueue* NewL();        // two-phased constructor
+    static CIntQueue* NewLC();       // two-phased constructor
+
+    void  Enqueue(TInt aValue);      // add integer to the end of the queue
+    TInt  Dequeue();                 // return integer from the beginning of the queue
+    TBool IsEmpty();                 // checks if there are any items in queue
+
+private:
+    void PutItem(TInt aItem);        // put new item to the buffer
+    TInt RemoveItem();               // take item from the buffer
+
+    CIntQueue();                     // default C++ constructor
+    void ConstructL();               // by default Symbian 2nd phase constructor is private
+
+private:
+    RArray<TInt>      iQueue;
+    RMutex            iMutex;        // protect a critical regions of code
+    RSemaphore        iFull;         // counts full buffer slots
+    TInt              iCompressCounter; // counts event dequeuing
+};
+
+// CEventLock implements queues for manipulating of event and notification handlers.
+
+class CEventQueue : public CBase
+{
+
+public:
+    virtual ~CEventQueue();
+
+    void NewEvent(TInt aEvent);
+    TInt GetNext();
+
+    static void NotifyServer(TInt aEvent, TInt aThreadNumber);
+    static void OnCloseThreads();
+
+    static void InitL();
+    static void Cleanup();
+
+    static CEventQueue* GetQueue(TInt aThread);
+    static const TInt KDispatchThreads = 2;      // two dispatching threads: events and notifications
+
+private:
+    CEventQueue();
+    void ConstructL();
+
+private:
+    CIntQueue* iEventQueue;                      // queue for storing event handles
+};
+
+// clean-up event server objects on vm exit
+void CleanupEventServer();
+// init event server objects on vm start
+void InitEventServer();
+
+#endif // CJAVAEVENTSERVER_H
+