// Copyright (c) 2008-2010 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 "SqlAssert.h"

 #include "SqlDatabaseImpl.h"

 #pragma BullseyeCoverage off

 /**

 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

 #pragma BullseyeCoverage on