--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/piprofiler/piprofiler_plat/inc/ProfilerEngineStatusChecker.inl	Tue May 25 14:22:58 2010 +0300
@@ -0,0 +1,128 @@
+/*
+* Copyright (c) 2009 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:   
+*
+*/
+
+// ------------------------------------------------------------------------------
+//
+// class CProfilerEngineStatusChecker
+//
+// ------------------------------------------------------------------------------
+//
+inline CProfilerEngineStatusChecker* CProfilerEngineStatusChecker::NewL()
+    {
+    CProfilerEngineStatusChecker* self = new(ELeave) CProfilerEngineStatusChecker();
+    CleanupStack::PushL(self);
+    self->ConstructL();
+    CleanupStack::Pop();
+    return self;
+    }
+
+// --------------------------------------------------------------------------------------------
+inline CProfilerEngineStatusChecker::CProfilerEngineStatusChecker() :
+    CActive(EPriorityStandard)
+    {
+    }
+
+inline CProfilerEngineStatusChecker::~CProfilerEngineStatusChecker()
+    {
+    Cancel();
+    iEngineStatus.Close();
+    }
+
+// --------------------------------------------------------------------------------------------
+inline void CProfilerEngineStatusChecker::ConstructL()
+    {
+    User::LeaveIfError(iEngineStatus.Attach(KEngineStatusPropertyCat, EProfilerEngineStatus));
+    CActiveScheduler::Add(this);
+    
+    // check engine status, if not available set to idle
+    if(iEngineStatus.Get(iPrevStat) != KErrNone)
+        {
+        iPrevStat = MProfilerStatusObserver::EIdle;
+        }
+
+    // subscribe to P&S status property
+    iEngineStatus.Subscribe(iStatus);
+    SetActive();
+    }
+
+inline TInt CProfilerEngineStatusChecker::GetInitialState()
+    {
+    // check engine status, if not available set to idle
+    TInt err(iEngineStatus.Get(KEngineStatusPropertyCat, EProfilerEngineStatus, iPrevStat));
+    if(err != KErrNone)
+        {
+        iPrevStat = MProfilerStatusObserver::EIdle;
+        }
+    return iPrevStat;
+    }
+
+// --------------------------------------------------------------------------------------------
+inline void CProfilerEngineStatusChecker::RunL()
+    {
+    // resubscribe before processing new value to prevent missing updates
+    iEngineStatus.Subscribe(iStatus);
+    SetActive();
+
+    TInt stat(0);
+    if(iEngineStatus.Get(KEngineStatusPropertyCat, EProfilerEngineStatus, stat) == KErrNone)
+        {
+        // check if status one of error codes (< 0)
+        if(stat < KErrNone)
+            {
+            // some error occurred on engine side => set UI idle and show an error note
+            iObserver->HandleProfilerErrorL(stat);
+            }
+        else
+            {
+            if(iPrevStat != stat)
+                {
+                switch(stat)
+                    {
+                    case 0:
+                        iObserver->HandleProfilerStatusChange(MProfilerStatusObserver::EIdle);
+                        break;
+                    case 1:
+                        iObserver->HandleProfilerStatusChange(MProfilerStatusObserver::EInitializing);
+                        break;
+                    case 2:
+                        iObserver->HandleProfilerStatusChange(MProfilerStatusObserver::ERunning);
+                        break;
+                    case 3:
+                        iObserver->HandleProfilerStatusChange(MProfilerStatusObserver::EStopping);
+                        break;
+                    default:
+                        iObserver->HandleProfilerErrorL(stat);
+                        break;
+                    }
+                iPrevStat = stat;
+                }
+            }
+        }
+    }
+
+// --------------------------------------------------------------------------------------------
+ 
+inline void CProfilerEngineStatusChecker::DoCancel()
+    {
+    iEngineStatus.Cancel();
+    }
+
+// --------------------------------------------------------------------------------------------
+inline void CProfilerEngineStatusChecker::SetObserver(MProfilerStatusObserver* aObserver)
+    {
+    iObserver = aObserver;
+    }