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157 lines
3.5 KiB
157 lines
3.5 KiB
/******************************************************************************
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Copyright (c) 2001 Microsoft Corporation
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Module Name:
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Logger.cpp
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Abstract:
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This file contains the implementation of the Taxonomy::Logger class,
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which is used during database updates.
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Revision History:
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Davide Massarenti (Dmassare) 24/03/2001
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created
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******************************************************************************/
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#include "stdafx.h"
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Taxonomy::Logger::Logger()
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{
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// MPC::FileLog m_obj;
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m_dwLogging = 0; // DWORD m_dwLogging;
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}
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Taxonomy::Logger::~Logger()
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{
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if(m_dwLogging)
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{
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WriteLog( E_FAIL, L"Forcing closure of log file." );
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EndLog ( );
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}
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}
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HRESULT Taxonomy::Logger::StartLog( /*[in]*/ LPCWSTR szLocation )
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{
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__HCP_FUNC_ENTRY( "Taxonomy::Logger::StartLog" );
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HRESULT hr;
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if(m_dwLogging++ == 0)
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{
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MPC::wstring szFile( szLocation ? szLocation : HC_HCUPDATE_LOGNAME ); MPC::SubstituteEnvVariables( szFile );
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// Attempt to open the log for writing
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__MPC_EXIT_IF_METHOD_FAILS(hr, m_obj.SetLocation( szFile.c_str() ));
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// write it out to log file
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__MPC_EXIT_IF_METHOD_FAILS(hr, WriteLog( -1, L"===========================================\nHCUPDATE Log started\n===========================================" ));
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}
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hr = S_OK;
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__HCP_FUNC_CLEANUP;
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__HCP_FUNC_EXIT(hr);
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}
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HRESULT Taxonomy::Logger::EndLog()
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{
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__HCP_FUNC_ENTRY( "Taxonomy::Logger::EndLog" );
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HRESULT hr;
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if(m_dwLogging > 0)
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{
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if(m_dwLogging == 1)
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{
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(void)WriteLog( -1, L"===========================================\nHCUPDATE Log ended\n===========================================" );
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__MPC_EXIT_IF_METHOD_FAILS(hr, m_obj.Terminate());
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}
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m_dwLogging--;
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}
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hr = S_OK;
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__HCP_FUNC_CLEANUP;
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__HCP_FUNC_EXIT(hr);
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}
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HRESULT Taxonomy::Logger::WriteLogV( /*[in]*/ HRESULT hrRes ,
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/*[in]*/ LPCWSTR szLogFormat ,
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/*[in]*/ va_list arglist )
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{
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__HCP_FUNC_ENTRY( "Taxonomy::Logger::WriteLogV" );
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HRESULT hr;
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WCHAR rgLine[256];
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WCHAR* pLine = NULL;
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WCHAR* pLinePtr;
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if(_vsnwprintf( rgLine, MAXSTRLEN(rgLine), szLogFormat, arglist ) == -1)
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{
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const int iSizeMax = 8192;
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__MPC_EXIT_IF_ALLOC_FAILS(hr, pLine, new WCHAR[iSizeMax]);
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_vsnwprintf( pLine, iSizeMax-1, szLogFormat, arglist ); pLine[iSizeMax-1] = 0;
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pLinePtr = pLine;
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}
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else
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{
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rgLine[MAXSTRLEN(rgLine)] = 0;
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pLinePtr = rgLine;
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}
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if(hrRes == -2)
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{
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hrRes = HRESULT_FROM_WIN32(::GetLastError());
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}
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if(hrRes == -1)
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{
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hrRes = S_OK;
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if(m_dwLogging)
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{
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__MPC_EXIT_IF_METHOD_FAILS(hr, m_obj.LogRecord( L"%s", pLinePtr ));
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}
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}
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else
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{
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if(m_dwLogging)
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{
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__MPC_EXIT_IF_METHOD_FAILS(hr, m_obj.LogRecord( L"%x - %s", hrRes, pLinePtr ));
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}
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}
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hr = S_OK;
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__HCP_FUNC_CLEANUP;
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delete [] pLine;
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if(FAILED(hrRes)) hr = hrRes;
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__HCP_FUNC_EXIT(hr);
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}
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HRESULT Taxonomy::Logger::WriteLog( /*[in]*/ HRESULT hrRes ,
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/*[in]*/ LPCWSTR szLogFormat ,
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/*[in]*/ ... )
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{
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va_list arglist;
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va_start( arglist, szLogFormat );
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return WriteLogV( hrRes, szLogFormat, arglist );
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}
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