--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libraries/extrabtrace/inc/extrabtracek.h	Wed Jun 23 15:52:26 2010 +0100
@@ -0,0 +1,90 @@
+// extrabtracek.h
+// 
+// Copyright (c) 2010 Accenture. All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of the "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:
+// Accenture - Initial contribution
+//
+#ifndef EXTRABTRACEK_H
+#define EXTRABTRACEK_H
+
+#include <fshell/extrabtrace.h>
+#include <kernel/kern_priv.h>
+
+// This class avoids exporting functions from extrabtracek.ldd - something that has proved problematic on certain platforms
+class MExtraBtrace
+	{
+public:
+	typedef void (*TCpuUsageCallback)(NThread*, NThread*); // First arg is previous thread, second is current
+	virtual void SetCpuUsageSampling(TCpuUsageCallback aCallbackFn)=0;
+	virtual void SetProfilingSampling(TBool aEnabled)=0;
+
+	virtual TAny* GetVersion(TInt aVersion)=0;
+	virtual void MExtraBtrace_Close()=0;
+	};
+
+
+class DCpuSampler;
+class DExtraBtraceEventHandler;
+
+class DExtraBTraceFactory : public DLogicalDevice, public MExtraBtrace
+	{
+public:
+	virtual TInt Install();
+	virtual void GetCaps(TDes8& aDes) const;
+	virtual TInt Create(DLogicalChannelBase*& aChannel);
+	~DExtraBTraceFactory();
+
+public: // From MExtraBtrace
+	void SetCpuUsageSampling(TCpuUsageCallback aCallbackFn);
+	void SetProfilingSampling(TBool aEnabled);
+	TAny* GetVersion(TInt aVersion);
+	void MExtraBtrace_Close();
+
+public:
+	DCpuSampler* iSampler;
+	DExtraBtraceEventHandler* iEventHandler;
+	};
+
+
+// This function avoids using WSD in extrabtracek.ldd - something that, again, has proved problematic on certain platforms
+// (And it's inline because of aforementioned exports problem)
+
+static MExtraBtrace* OpenExtraBtrace()
+	{
+	__ASSERT_CRITICAL;
+	// Find the extrabtrace DLogicalDevice
+	DLogicalDevice* ldd = NULL;
+	DObjectCon* ldds = Kern::Containers()[ELogicalDevice];
+	_LIT(KLogicalDeviceName, "extrabtrace");
+	TKName resultname;
+#ifdef FSHELL_9_1_SUPPORT
+	TInt findHandle;
+#else
+	TFindHandle findHandle;
+#endif
+	TInt found = ldds->FindByName(findHandle, KLogicalDeviceName, resultname);
+	if (found == KErrNone)
+		{
+		ldds->Wait();
+#ifdef FSHELL_9_1_SUPPORT
+		ldd = static_cast<DLogicalDevice*>(ldds->At(findHandle));
+#else
+		if (findHandle.Index() <= ldds->Count()) ldd = static_cast<DLogicalDevice*>((*ldds)[findHandle.Index()]);
+#endif
+		if (ldd && ldd->Open() != KErrNone) ldd = NULL;
+		ldds->Signal();
+
+		if (ldd)
+			{
+			return static_cast<DExtraBTraceFactory*>(ldd);
+			}
+		}
+	return NULL;
+	}
+
+#endif