/*

* 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:    Logging macros

*

*/

#ifndef GLXLOG_H

#define GLXLOG_H

// KH 3-August-2007, from now on only log on debug builds because of performance

#ifdef _DEBUG

#define GLX_LOGGING_ENABLED

#endif

#ifndef GLX_LOGGING_ENABLED

    // empty declarations to clean up code

    #define GLX_LOG_ENTRY_EXIT( s )

    #define GLX_LOG_ENTRY_EXIT_LEAVE_L( s )

    #define GLX_LOG_INFO( s )

    #define GLX_LOG_INFO1( s, i )

    #define GLX_LOG_INFO2( s, i, j )

    #define GLX_LOG_INFO3( s, i, j, k )

    #define GLX_LOG_INFO4( s, i, j, k, l )

    #define GLX_LOG_INFO5( s, i, j, k, l, m )

    #define GLX_LOG_WARNING( s )

    #define GLX_LOG_WARNING1( s, i )

    #define GLX_LOG_WARNING2( s, i, j )

    #define GLX_LOG_WARNING3( s, i, j, k )

    #define GLX_LOG_ERROR( s )

    #define GLX_LOG_ERROR1( s, i )

    #define GLX_LOG_ERROR2( s, i, j )

    #define GLX_LOG_ERROR3( s, i, j, k )

    #define GLX_FUNC( s )

    #define GLX_FUNCL( s )

    #define GLX_DEBUG1( s )

    #define GLX_DEBUG2( s, i )

    #define GLX_DEBUG3( s, i, j )

    #define GLX_DEBUG4( s, i, j, k )

    #define GLX_DEBUG5( s, i, j, k, l )

#else

// only include headers if logging is enabled

#include <e32std.h>

#include <e32base.h>

#include <glxlogger.h>

    /**

     * Helper macro for defining debug string with filename

     * Note! this is internal so dont use outside this header

     */

/*    #ifdef __arm__

        // use the module name instead as its the filename without path

        #define GLX_DEBUG_STR( cat, str ) __MODULE__ "(%d) : " ##cat " : " ##str

    #else

        // put full file paths off for __FILE__ macro to make the log entries shorter

        #pragma fullpath_file off*/

        #define GLX_DEBUG_STR( cat, str ) __FILE__ "(%d) : " ##cat " : " ##str

//    #endif

    /**

     * Helper macro for defining debug string with filename and linenumber

     * @param category the category string for the log entry

     * @param string the string for the log entry

     * Note! this is internal so dont use outside this header

     */

    #define GLX_DEBUG_LINE( category, string ) \

        TPtrC8((const TText8*) GLX_DEBUG_STR( category, string ) ), __LINE__

    /**

     * Output to glx logger

     * Note! this is internal so dont use outside this header

     */

    #define GLX_DEBUG_PRINT GlxLogger::WriteFormat

    // LOGGING MACROS

    /**

     * Logs the entry and exit point of the function

     * Does not log the filename nor linenumber as inlining does not work

     * if you want to log the filename and linenumber, 

     * use GLX_LOG_INFO macros instead

     * Example usage:

     * 	GLX_LOG_ENTRY_EXIT( "CFoo::Bar()" );

     * @param a string to be added to the log

     */

    #define GLX_LOG_ENTRY_EXIT( s ) TGlxFunctionTrace _tracer( _L8( s ) )

    /**

     * Logs the entry, exit and possible leave point of the function.

     * Note! cannot be used in a non leaving function or inside a LC function 

     * as this macro uses the cleanup stack

     * Does not log the filename nor linenumber as inlining does not work

     * if you want to log the filename and linenumber, 

     * use GLX_LOG_INFO macros instead

     * Example usage:

     * 	GLX_LOG_ENTRY_EXIT_LEAVE_L( "CFoo::Bar()" );

     * @param a string to be added to the log

     * @deprecated use GLX_LOG_ENTRY_EXIT instead as it also detects leave and does not require cleanupstack to work

     */

    #define GLX_LOG_ENTRY_EXIT_LEAVE_L( s ) \

        TGlxFunctionTraceWithLeaveDetection _tracer( _L8( s ) ); \

        CleanupClosePushL( _tracer )

    /**

     * Logs a single line of information and the filename and linenumber

     * Example usage:

     * 	GLX_LOG_INFO( "CFoo::Bar()" );

     * @param s, the string to be inserted to the log, plain compile time string, not a descriptor

     */

    #define GLX_LOG_INFO( s ) \

        GLX_DEBUG_PRINT( GLX_DEBUG_LINE( "info", s ) )

    /**

     * Logs a single line of information with one parameter 

     * and the filename and linenumber

      * NOTE! logging is done in 8 bit strings so you cannot format 16 bit descriptor

      * values.

     * For the parameter string, use %d for int, %f for float and %S for address of descriptor

     * Example usage:

     * 	GLX_LOG_INFO1( "CFoo::Bar(%d)", aInt );

     * @param s, the string to be inserted to the log, plain compile time string, not a descriptor

     * @param i, value to be inserted to the string, can be of any type

     */

    #define GLX_LOG_INFO1( s, i ) \

        GLX_DEBUG_PRINT( GLX_DEBUG_LINE( "info", s ), i )

    /**

     * Logs a single line of information with two parameters

     * along with the filename and linenumber

     * For the parameter string, use %d for int, %f for float and %S for address of descriptor

      * NOTE! logging is done in 8 bit strings so you cannot format 16 bit descriptor

      * values.

     * Example usage:

     * 	GLX_LOG_INFO2( "CFoo::Bar(%d,%f)", aInt, aFloat );

     * @param s, the string to be inserted to the log, plain compile time string, not a descriptor

     * @param i, value to be inserted to the string, can be of any type

     * @param j, value to be inserted to the string, can be of any type

     */

    #define GLX_LOG_INFO2( s, i, j ) \

        GLX_DEBUG_PRINT( GLX_DEBUG_LINE( "info", s ), i, j )

    /**

     * Logs a single line of information with three parameters

     * along with the filename and linenumber

     * For the parameter string, use %d for int, %f for float and %S for address of descriptor

      * NOTE! logging is done in 8 bit strings so you cannot format 16 bit descriptor

      * values.

     * Example usage:

     * 	GLX_LOG_INFO3( "CFoo::Bar(%d,%S,%f)", aInt, &aDesC, aFloat );

     * @param s, the string to be inserted to the log, plain compile time string, not a descriptor

     * @param i, value to be inserted to the string, can be of any type

     * @param j, value to be inserted to the string, can be of any type

     * @param k, value to be inserted to the string, can be of any type

     */

    #define GLX_LOG_INFO3( s, i, j, k ) \

        GLX_DEBUG_PRINT( GLX_DEBUG_LINE( "info", s ), i, j, k )

    /**

     * Logs a single line of information with four parameters

     * along with the filename and linenumber

     * For the parameter string, use %d for int, %f for float and %S for address of descriptor

      * NOTE! logging is done in 8 bit strings so you cannot format 16 bit descriptor

      * values.

     * Example usage:

     * 	GLX_LOG_INFO4( "CFoo::Bar(%d,%f,%S,%s)", aInt, aFloat, "string" );

     * @param s, the string to be inserted to the log, plain compile time string, not a descriptor

     * @param i, value to be inserted to the string, can be of any type

     * @param j, value to be inserted to the string, can be of any type

     * @param k, value to be inserted to the string, can be of any type

     * @param l, value to be inserted to the string, can be of any type

     */

    #define GLX_LOG_INFO4( s, i, j, k, l ) \

        GLX_DEBUG_PRINT( GLX_DEBUG_LINE( "info", s ), i, j, k, l )

    /**

     * Logs a single line of information with five parameters

     * along with the filename and linenumber

     * For the parameter string, use %d for int, %f for float and %S for address of descriptor

      * NOTE! logging is done in 8 bit strings so you cannot format 16 bit descriptor

      * values.

     * Example usage:

     * 	GLX_LOG_INFO5( 

     *       "CFoo::Bar(%.1f,%.2f,%.3f,%.4f,%.5f)", aFloat1, aFloat2, aFloat3, aFloat4, aFloat5 );

     * @param s, the string to be inserted to the log, plain compile time string, not a descriptor

     * @param i, value to be inserted to the string, can be of any type

     * @param j, value to be inserted to the string, can be of any type

     * @param k, value to be inserted to the string, can be of any type

     * @param l, value to be inserted to the string, can be of any type

     * @param m, value to be inserted to the string, can be of any type

     */

    #define GLX_LOG_INFO5( s, i, j, k, l, m ) \

        GLX_DEBUG_PRINT( GLX_DEBUG_LINE( "info", s ), i, j, k, l, m )

    /**

     * Logs a single line of warning and the filename and linenumber

     * Example usage:

     * 	GLX_LOG_WARNING( "Incorrect state, resetting state" );

     * @param s, the string to be inserted to the log, plain compile time string, not a descriptor

     */

    #define GLX_LOG_WARNING( s ) \

        GLX_DEBUG_PRINT( GLX_DEBUG_LINE( "warning", s ) )

    /**

     * Logs a single line of warning with one parameter 

     * and the filename and linenumber

     * For the parameter string, use %d for int, %f for float and %S for address of descriptor

      * NOTE! logging is done in 8 bit strings so you cannot format 16 bit descriptor

      * values.

     * Example usage:

     *  GLX_LOG_WARNING1( "Incorrect parameter %d", aInt );

     * @param s, the string to be inserted to the log, plain compile time string, not a descriptor

     * @param i, value to be inserted to the string, can be of any type

     */

    #define GLX_LOG_WARNING1( s, i ) \

        GLX_DEBUG_PRINT( GLX_DEBUG_LINE( "warning", s ), i )

    /**

     * Logs a single line of warning with two parameters

     * along with the filename and linenumber

     * For the parameter string, use %d for int, %f for float and %S for address of descriptor

      * NOTE! logging is done in 8 bit strings so you cannot format 16 bit descriptor

      * values.

     * Example usage:

     *  GLX_LOG_WARNING2( "Incorrect parameter %f, defaulting to %f", aInputFloat, KDefaultFloat );

     * @param s, the string to be inserted to the log, plain compile time string, not a descriptor

     * @param i, value to be inserted to the string, can be of any type

     * @param j, value to be inserted to the string, can be of any type

     */

    #define GLX_LOG_WARNING2( s, i, j ) \

        GLX_DEBUG_PRINT( GLX_DEBUG_LINE( "warning", s ), i , j )

    /**

     * Logs a single line of warning with three parameters

     * along with the filename and linenumber

     * For the parameter string, use %d for int, %f for float and %S for address of descriptor

      * NOTE! logging is done in 8 bit strings so you cannot format 16 bit descriptor

      * values.

     * Example usage:

     *  GLX_LOG_WARNING3( "Incorrect size (%d,%d), scale is %f", aWidth, aHeight, aScale );

     * @param s, the string to be inserted to the log, plain compile time string, not a descriptor

     * @param i, value to be inserted to the string, can be of any type

     * @param j, value to be inserted to the string, can be of any type

     * @param k, value to be inserted to the string, can be of any type

     */

    #define GLX_LOG_WARNING3( s, i, j, k ) \

        GLX_DEBUG_PRINT( GLX_DEBUG_LINE( "warning", s ), i, j, k )

    /**

     * Logs a single line of error and the filename and linenumber.

     * Use this macro to track your asserts and panics so you can see them in the log and 

     * have a trace to come back to later on.

      * NOTE! logging is done in 8 bit strings so you cannot format 16 bit descriptor

      * values.

     * Example usage:

     *  GLX_LOG_ERROR( "Incorrect state, going to panic" );

     * @param s, the string to be inserted to the log, plain compile time string, not a descriptor

     */

    #define GLX_LOG_ERROR( s ) GLX_DEBUG_PRINT( GLX_DEBUG_LINE( "error", s ) )

    /**

     * Logs a single line of error with one parameter and the filename and linenumber

     * Use this macro to track your asserts and panics so you can see them in the log and 

     * have a trace to come back to later on.

     * For the parameter string, use %d for int, %f for float and %S for address of descriptor

      * NOTE! logging is done in 8 bit strings so you cannot format 16 bit descriptor

      * values.

     * Example usage:

     *  GLX_LOG_ERROR1( "Incorrect parameter %d, panicing", aInt );

     * @param s, the string to be inserted to the log, plain compile time string, not a descriptor

     * @param i, value to be inserted to the string, can be of any type

     */

    #define GLX_LOG_ERROR1( s, i ) \

        GLX_DEBUG_PRINT( GLX_DEBUG_LINE( "error", s ), i )

    /**

     * Logs a single line of error with one parameter and the filename and linenumber

     * Use this macro to track your asserts and panics so you can see them in the log and 

     * have a trace to come back to later on.

     * For the parameter string, use %d for int, %f for float and %S for address of descriptor

      * NOTE! logging is done in 8 bit strings so you cannot format 16 bit descriptor

      * values.

     * Example usage:

     *  GLX_LOG_ERROR2( "Incorrect size (%d,%d), panicking", aWidth, aHeight );

     * @param s, the string to be inserted to the log, plain compile time string, not a descriptor

     * @param i, value to be inserted to the string, can be of any type

     * @param j, value to be inserted to the string, can be of any type

     */

    #define GLX_LOG_ERROR2( s, i, j ) \

        GLX_DEBUG_PRINT( GLX_DEBUG_LINE( "error", s ), i, j )

    /**

     * Logs a single line of error with one parameter and the filename and linenumber

     * Use this macro to track your asserts and panics so you can see them in the log and 

     * have a trace to come back to later on.

     * For the parameter string, use %d for int, %f for float and %S for address of descriptor

      * NOTE! logging is done in 8 bit strings so you cannot format 16 bit descriptor

      * values.

     * Example usage:

     *  GLX_LOG_ERROR3( "Incorrect state %d,%d,%f, panicking", aInt, aInt2, aFloat );

     * @param s, the string to be inserted to the log, plain compile time string, not a descriptor

     * @param i, value to be inserted to the string, can be of any type

     * @param j, value to be inserted to the string, can be of any type

     * @param k, value to be inserted to the string, can be of any type

     */

    #define GLX_LOG_ERROR3( s, i, j, k ) \

        GLX_DEBUG_PRINT( GLX_DEBUG_LINE( "error", s ), i, j, k )

    // Old macros for compatibility 

    ///@deprecated, use GLX_LOG_ENTRY_EXIT instead

    #define GLX_FUNC( s ) GLX_LOG_ENTRY_EXIT( s )

    ///@deprecated, use GLX_LOG_ENTRY_EXIT_LEAVE_L instead

    #define GLX_FUNCL( s )	GLX_LOG_ENTRY_EXIT_LEAVE_L( s )

    ///@deprecated, use GLX_LOG_INFO instead

    #define GLX_DEBUG1( s ) GLX_LOG_INFO( s )

    ///@deprecated, use GLX_LOG_INFO1 instead

    #define GLX_DEBUG2( s, i ) GLX_LOG_INFO1( s, i )

    ///@deprecated, use GLX_LOG_INFO2 instead

    #define GLX_DEBUG3( s, i, j ) GLX_LOG_INFO2( s, i, j )

    ///@deprecated, use GLX_LOG_INFO3 instead

    #define GLX_DEBUG4( s, i, j, k ) GLX_LOG_INFO3( s, i, j, k )

    ///@deprecated, use GLX_LOG_INFO4 instead

    #define GLX_DEBUG5( s, i, j, k, l ) GLX_LOG_INFO4( s, i, j, k, l )

    /**

     * TRAP instrumentation for Leave

     */

    #undef TRAP_INSTRUMENTATION_LEAVE

    #define TRAP_INSTRUMENTATION_LEAVE( aResult ) \

        GLX_LOG_INFO1( "Leave %d TRAPPED", aResult )

    /**

     * Helper class to track function entry and exit.

     */

    class TGlxFunctionTrace

        {

        public:

            inline TGlxFunctionTrace( TRefByValue< const TDesC8 > aName )

                : iStr( aName )

                {

                // not using GLX_DEBUG2 as this function does not inline

                GLX_DEBUG_PRINT( _L8( "Entry : %S" ), &iStr );

                }

            inline ~TGlxFunctionTrace()

                {

                if( std::uncaught_exception() )

                    {

                    // not using GLX_DEBUG2 as this function does not inline

                    GLX_DEBUG_PRINT( _L8( "Leave: %S" ), &iStr );

                    }

                else

                    {

                    // not using GLX_DEBUG2 as this function does not inline

                    GLX_DEBUG_PRINT( _L8( "Exit : %S" ), &iStr );

                    }

                }

        private:

            TPtrC8 iStr;

        };

    /**

     * Helper class to track function entry, exit and possible leave.

     * Never instantiate this class by itself.

     * Only ever user the macro GLX_FUNCL as this calls CleanupClosePushL

     * If you don't use the macro the destructor will panic in CleanupStack::Pop( this )

     * DO NOT use this in a LC method such as NewLC. 

     * Cleanup stack will be popped in the wrong order causing unwanted behaviour

     */

    class TGlxFunctionTraceWithLeaveDetection

        {

        public:

            inline TGlxFunctionTraceWithLeaveDetection( TRefByValue<const TDesC8> aName )

                : iStr( aName ), iLeave( EFalse )

                {

                // not using GLX_DEBUG2 as this function does not inline

                GLX_DEBUG_PRINT( _L8( "Entry : %S" ), &iStr );

                }

            inline ~TGlxFunctionTraceWithLeaveDetection()

                {

                // Did we leave

                if( iLeave )                         

                    {

                    // not using GLX_DEBUG2 as this function does not inline

                    GLX_DEBUG_PRINT( _L8( "Leave : %S" ), &iStr );

                    }

                else

                    {

                    // not using GLX_DEBUG2 as this function does not inline

                    GLX_DEBUG_PRINT( _L8( "Exit : %S" ), &iStr );

                    // Remove this from Cleanup. 

                    CleanupStack::Pop( this );

                    }

                }

            void Close() // This is only called if a leave happens.

                {

                iLeave = ETrue;

                }

        private:

            TPtrC8 iStr;

            TBool iLeave;

        };

#endif

#endif  // GLXLOG_H

// End of File