1 // sampler.h

     2 // 

     3 // Copyright (c) 2010 Accenture. All rights reserved.

     4 // This component and the accompanying materials are made available

     5 // under the terms of the "Eclipse Public License v1.0"

     6 // which accompanies this distribution, and is available

     7 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 // 

     9 // Initial Contributors:

    10 // Accenture - Initial contribution

    11 //

    12 #ifndef EXTRABTRACE_SAMPLER_H

    13 #define EXTRABTRACE_SAMPLER_H

    14 

    15 #include <fshell/extrabtracek.h>

    16 #include <kernel.h>

    17 

    18 NONSHARABLE_CLASS(DCpuSampler) : public DBase

    19 	{

    20 public:

    21 	DCpuSampler();

    22 	~DCpuSampler();

    23 

    24 	void SetCpuUsageSampling(MExtraBtrace::TCpuUsageCallback aCallbackFn);

    25 	void SetProfilingSampling(TBool aEnabled);

    26 

    27 private:

    28 	static void Sample(TAny* aPtr);

    29 	void DoSample();

    30 	void Usample(NThread* aThread);

    31 	void SettingsChanged();

    32 	TBool ShouldRun() const;

    33 

    34 private:

    35 	NThread* iContext;

    36 	NTimer iTimer;

    37 	TInt iTimerHeartbeat;

    38 	TUint* iIntStackTop; // I don't understand this, but whover wrote it originally hopefully did!

    39 	TBool iProfiling;

    40 	MExtraBtrace::TCpuUsageCallback iCpuUsageCallbackFn;

    41 	};

    42 

    43 #endif