serialserver/c32serialserver/SCOMM/cs_glob.cpp
changeset 0 dfb7c4ff071f
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/serialserver/c32serialserver/SCOMM/cs_glob.cpp	Thu Dec 17 09:22:25 2009 +0200
@@ -0,0 +1,214 @@
+// Copyright (c) 2005-2009 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:
+//
+
+/**
+ @file
+ @internalComponent
+*/
+
+#include "cs_glob.h"
+#include <e32std.h>
+#include "C32LOG.H"
+#include "cs_roles.h"
+#include "cs_thread.h"
+
+
+CC32Data* CC32Data::NewL()
+		{
+		return new(ELeave) CC32Data();
+		}
+
+
+	
+CC32Data::CC32Data()
+	{
+	}
+
+
+CC32WorkerThread* CC32Data::SelfWorker() const
+	{ 
+	return iWorkerThread;
+	}
+
+void C32GlobalUtil::InitC32GlobalsL(CC32WorkerThread* aWorker)
+	{
+	CTLSRedirector* tls = CRedirectorInTls();
+	if(tls)
+		{
+		Fault(EInitTwice);
+		}
+
+	// Allocate global storage to be held in tls.
+	// only transfer ownership to tls at end since if we fail, the thread is never started
+	CC32Data *globals=CC32Data::NewL();
+
+	CleanupStack::PushL(globals);
+
+	// Pre allocate the shutdown timer so that we can always shut down.
+	globals->iShutdownWatchDog=CC32ShutdownWatchDog::NewL();
+#ifdef _DEBUG
+	globals->iShutdownWatchDog->SetWorkerId(aWorker->WorkerId());
+#endif
+	CleanupStack::PushL(globals->iShutdownWatchDog);
+
+	globals->iWorkerThread = aWorker;
+	
+	tls = CTLSRedirector::NewL();
+	
+	CleanupStack::PushL(tls);
+	
+	CDeltaTimer* timer = CDeltaTimer::NewL(CActive::EPriorityHigh, KCommTimerGranularity);
+
+	tls->SetDeltaTimer(timer); // ownership	transferred
+		
+	tls->SetC32GlobalData(globals); //ownership transferred
+
+	
+	Dll::SetTls(tls);  // owned now indirectly by the worker thread which must now remove it when shutting down
+
+	CleanupStack::Pop(3); //watchdog, globals, tls
+
+	C32LOG1(KC32Bootup, _L("C32GlobalUtil::InitL() Done!"));
+	}
+
+void C32GlobalUtil::ShutDown()
+/**
+free data structures
+*/
+	{
+	// Mark ourself as on the way out
+	CC32Data* globals = CC32DataInTls();
+	CTLSRedirector* tls = CRedirectorInTls();
+	// The CC32Data destructor does not own so does not delete the data it points
+	// This is since don't want to delete the Watchdog - it is left to delete itself.
+	// So we delete everything else in CC32Data explicitly.
+
+	C32LOG2(KC32Shutdown, _L("--------------- C32Server W%d starting shutdown ---------------"), globals->iWorkerThread->WorkerId());
+
+	delete globals->iWorkerThread;
+	delete tls;
+	Dll::SetTls(NULL); // so that logger sees it is gone.
+	}
+
+void C32GlobalUtil::NewSession()
+/**
+Increment the session counter - if we were about to shutdown, stop.
+*/
+	{
+	CC32Data* globals = CC32DataInTls();
+	globals->iNumSessions++;
+	C32LOG2(KC32Detail, _L8("C32GlobalUtil::NewSession() iNumSessions= %d "), globals->iNumSessions );
+	}
+
+void C32GlobalUtil::SessionClosing()
+/**
+A session is closing, if it's the last one take our stumps home.
+*/
+	{
+	CC32Data* globals = CC32DataInTls();
+	globals->iNumSessions--;
+	C32LOG2(KC32Detail, _L8("C32GlobalUtil::SessionClosing() iNumSessions= %d "), globals->iNumSessions );
+
+	CC32WorkerThread* selfWorker = globals->SelfWorker();
+	if (selfWorker->ShuttingDown())
+		{
+		C32LOG2(KC32Shutdown, _L8("Shutdown requested: %d sessions"), globals->iNumSessions );
+		if (globals->iNumSessions <= 0)
+			{
+			if(selfWorker->IsMainThread())
+				{
+				selfWorker->DealerByRef().SessionShutdownComplete();
+				}
+			else
+				{
+				selfWorker->MaybeTriggerThreadShutdownCallback();
+				}
+			}
+		}
+	}
+	
+	
+	
+CTLSRedirector* CTLSRedirector::NewL()
+		{
+		return new(ELeave) CTLSRedirector();
+		}
+
+
+CTLSRedirector::~CTLSRedirector()
+	{
+	delete iTimer;
+	delete iC32Data;
+	}
+
+
+CC32ShutdownWatchDog::CC32ShutdownWatchDog()
+	:CTimer(EPriorityLow)
+/**
+Constructor
+*/
+	{
+	}
+
+void CC32ShutdownWatchDog::Shutdown()
+/**
+Que ourselves to shut the C32 server down after a suitable delay.
+*/
+	{
+	C32LOG1(KC32Shutdown, _L("CC32ShutdownWatchDog::Shutdown()"));
+
+	if (!IsAdded())
+		{
+		CActiveScheduler::Add(this);
+		}
+
+	if(!IsActive())
+		{
+		After(KCommServerShutdownLatencyMicroSeconds);
+		}
+	}
+
+void CC32ShutdownWatchDog::RunL()
+	{
+	C32LOG1(KC32Shutdown, _L("CC32ShutdownWatchDog::RunL()"));	
+	ASSERT(CC32DataInTls()->iNumSessions == 0);
+	// End of the line
+	C32GlobalUtil::ShutDown();
+	CActiveScheduler::Stop();
+	// tls is now deleted, so we mimmick our workerId description on the log line:
+    C32LOG2(KC32Shutdown, _L("W%d: CC32ShutdownWatchDog::RunL() - about to delete self, which is last step of shutdown"),iWorkerId);
+	delete this;
+	}
+
+CC32ShutdownWatchDog* CC32ShutdownWatchDog::NewL()
+	{
+	CC32ShutdownWatchDog* t=new (ELeave) CC32ShutdownWatchDog();
+	CleanupStack::PushL(t);
+	t->ConstructL();
+	CleanupStack::Pop(t);
+	return t;
+	}
+
+#ifdef _DEBUG
+void CC32ShutdownWatchDog::SetWorkerId(TWorkerId aWorkerId)
+	{
+	iWorkerId = aWorkerId;
+	}
+#endif
+
+
+// EOF - CS_GLOB.CPP
+
+