85 lines
2.1 KiB
C++
85 lines
2.1 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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// $NoKeywords: $
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//===========================================================================//
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#pragma once
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#include <tuple>
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#include <string>
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#include <sstream>
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template <class Object, class RecordType>
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class InstanceLogger
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{
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public:
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typedef RecordType RecordType_t;
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protected:
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void InstanceLog( const char* pMsg )
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{
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m_records.AddToTail( BuildRecord( pMsg ) );
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}
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void DumpInstanceLog( )
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{
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CUtlString str;
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Msg( "--------\nDumping instance log for 0x%08p\n", this );
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for ( auto it : m_records )
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{
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FormatRecord( &str, it );
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Msg( "%s\n", str.Get() );
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}
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Msg( "========\nInstance log complete for 0x%08p\n", this );
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}
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virtual RecordType_t BuildRecord( const char* pMsg ) = 0;
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private:
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CUtlVector< RecordType > m_records;
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};
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// // Your class needs to implement something like this. You don't have to use a tuple,
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// // but if you don't you also need to implement FormatRecord for your type.
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// RecordType BuildRecord( const char* pMsg )
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// {
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// return std::make_tuple( this, pMsg, g_FrameNum, Plat_FloatTime(), m_nAllocatedWidth, m_nAllocatedHeight, m_nAllocatedDepth, m_nTargetResidence, m_nCurrentResidence );
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// }
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// helper function to print a tuple of any size
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template<class Tuple, std::size_t N>
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struct TuplePrinter {
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static void print( std::stringstream& os, const Tuple& t )
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{
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TuplePrinter<Tuple, N - 1>::print( os, t );
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os << ", " << std::get<N - 1>( t );
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}
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};
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template<class Tuple>
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struct TuplePrinter < Tuple, 1 > {
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static void print( std::stringstream& os, const Tuple& t )
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{
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os << std::get<0>( t );
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}
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};
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template<class... Args>
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void format( std::stringstream& os, const std::tuple<Args...>& t )
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{
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os << "( ";
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TuplePrinter<decltype( t ), sizeof...( Args )>::print( os, t );
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os << " )";
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}
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// end helper function
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template <class RecordType>
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void FormatRecord( CUtlString *pOutStr, const RecordType& rt )
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{
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std::stringstream stream;
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format( stream, rt );
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( *pOutStr ) = stream.str().c_str();
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}
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