// Copyright (c) 2008-2009 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:

//

#include "SqlResourceProfiler.h"

#include "SqlPanic.h"

#include "SqlDatabaseImpl.h"

/**

Initializes TSqlResourceProfiler data members with their default values.

@param aDatabase The RSqlDatabase object that will be profiled.

*/

EXPORT_C TSqlResourceProfiler::TSqlResourceProfiler(RSqlDatabase& aDatabase) :

	iDatabase(aDatabase)

	{

	}

#ifdef _SQLPROFILER

/**

Starts the specified profiling counter.

@param aCounterType Profiling counter type.

@param aPrm Additional profiling parameters.

@capability None

@return KErrNone, the operation completed successfully;

                  One of the other system-wide error codes may also be returned.

Usage of the IPC call arguments:

 - Arg 0: [out]  profiling counter type, one of the TSqlResourceProfiler::TSqlCounter enum item values.

When the counter type is ESqlCounterTrace, then the optional aPrm argument can contain the follwing 

configuration parameters, split with ";":

   - "L0" - [default] tracing level 0. IPC traces disabled;

   - "L1" - tracing level 1. Only the most important IPC calls are traced:

            ESqlSrvDbExec8, ESqlSrvDbExec16, ESqlSrvDbScalarFullSelect16, ESqlSrvStmtExec,

            ESqlSrvStmtAsyncExec, ESqlSrvStmtBindExec, ESqlSrvStmtAsyncBindExec, ESqlSrvStmtNext,

            ESqlSrvStmtBindNext;

   - "L2" - tracing level 2. All IPC calls traced;

   - "S0" - [default] SQL statement tracing is off; 

   - "S1" - SQL statement tracing is on;

*/

EXPORT_C TInt TSqlResourceProfiler::Start(TSqlResourceProfiler::TSqlCounter aCounterType, const TDesC8* aPrm)

	{

	TIpcArgs ipcArgs;

	ipcArgs.Set(0, aCounterType);

    ipcArgs.Set(1, 0);

	if(aPrm)

	    {

        ipcArgs.Set(1, aPrm->Length());

        ipcArgs.Set(2, aPrm);

	    }

	return iDatabase.Impl().Session().SendReceive(ESqlSrvProfilerStart, ipcArgs);

	}

/**

Stops the specified profiling counter.

@param aCounterType Profiling counter type.

@capability None

@return KErrNone, the operation completed successfully;

                  One of the other system-wide error codes may also be returned.

Usage of the IPC call arguments:

 - Arg 0: [out]  profiling counter type, one of the TSqlResourceProfiler::TSqlCounter enum item values.

*/

EXPORT_C TInt TSqlResourceProfiler::Stop(TSqlResourceProfiler::TSqlCounter aCounterType)

	{

	return iDatabase.Impl().Session().SendReceive(ESqlSrvProfilerStop, TIpcArgs(aCounterType));

	}

/**

Sets to zero the specified profiling counter.

@param aCounterType Profiling counter type.

@capability None

@return KErrNone, the operation completed successfully;

                  One of the other system-wide error codes may also be returned.

Usage of the IPC call arguments:

 - Arg 0: [out]  profiling counter type, one of the TSqlResourceProfiler::TSqlCounter enum item values.

*/

EXPORT_C TInt TSqlResourceProfiler::Reset(TSqlResourceProfiler::TSqlCounter aCounterType)

	{

	return iDatabase.Impl().Session().SendReceive(ESqlSrvProfilerReset, TIpcArgs(aCounterType));

	}

/**

Retrieves the profiling counter(s) values for the aCounterType.

@param aCounterType Profiling counter type.

@param aResult Buffer, where the results will be copied.

@capability None

@return KErrNone, the operation completed successfully;

                  One of the other system-wide error codes may also be returned.

@see TSqlResourceProfiler

Usage of the IPC call arguments:

 - Arg 0: [out]  profiling counter type, one of the TSqlResourceProfiler::TSqlCounter enum item values.

 - Arg 1: [out]  the size of the buffer for the profiling counters

 - Arg 2: [in]   the buffer for the profiling counters

*/

EXPORT_C TInt TSqlResourceProfiler::Query(TSqlResourceProfiler::TSqlCounter aCounterType, TDes8& aResult)

	{

	return iDatabase.Impl().Session().SendReceive(ESqlSrvProfilerQuery, TIpcArgs(aCounterType, aResult.MaxLength(), &aResult));

	}

#else //_SQLPROFILER

EXPORT_C TInt TSqlResourceProfiler::Start(TSqlResourceProfiler::TSqlCounter, const TDesC8*)

	{

	return KErrNotSupported;

	}

EXPORT_C TInt TSqlResourceProfiler::Stop(TSqlResourceProfiler::TSqlCounter)

	{

	return KErrNotSupported;

	}

EXPORT_C TInt TSqlResourceProfiler::Reset(TSqlResourceProfiler::TSqlCounter)

	{

	return KErrNotSupported;

	}

EXPORT_C TInt TSqlResourceProfiler::Query(TSqlResourceProfiler::TSqlCounter aCounterType, TDes8& aResult)

	{

	if(aCounterType == TSqlResourceProfiler::ESqlCounterConfig)	

		{

		return iDatabase.Impl().Session().SendReceive(ESqlSrvProfilerQuery, TIpcArgs(aCounterType, aResult.MaxLength(), &aResult));

		}

	return KErrNotSupported;

	}

#endif//_SQLPROFILER