setup_native/source/win32/customactions/tools/seterror.cxx

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   9  * $RCSfile: seterror.cxx,v $
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  30
  31 #define UNICODE
  32
  33 #ifdef _MSC_VER
  34 #pragma warning(push,1) // disable warnings within system headers
  35 #endif
  36 #include <windows.h>
  37 #ifdef _MSC_VER
  38 #pragma warning(pop)
  39 #endif
  40
  41 #include <string.h>
  42 #include <malloc.h>
  43 #include <stdio.h>
  44 #include "strsafe.h"
  45
  46 #include <seterror.hxx>
  47
  48 //----------------------------------------------------------
  49 #ifdef DEBUG
  50 inline void OutputDebugStringFormat( LPCTSTR pFormat, ... )
  51 {
  52     TCHAR    buffer[1024];
  53     va_list  args;
  54
  55     va_start( args, pFormat );
  56     StringCchVPrintf( buffer, sizeof(buffer), pFormat, args );
  57     OutputDebugString( buffer );
  58 }
  59 #else
  60 static inline void OutputDebugStringFormat( LPCTSTR, ... )
  61 {
  62 }
  63 #endif
  64
  65 //----------------------------------------------------------
  66 void SetMsiErrorCode( int nErrorCode )
  67 {
  68     const TCHAR sMemMapName[] = TEXT( "Global\\MsiErrorObject" );
  69
  70     HANDLE hMapFile;
  71     int *pBuf;
  72
  73     hMapFile = OpenFileMapping(
  74                     FILE_MAP_ALL_ACCESS,    // read/write access
  75                     FALSE,                  // do not inherit the name
  76                     sMemMapName );          // name of mapping object
  77
  78     if ( hMapFile == NULL )                 // can not set error code
  79     {
  80         OutputDebugStringFormat( TEXT("Could not open map file (%d).\n"), GetLastError() );
  81         return;
  82     }
  83
  84     pBuf = (int*) MapViewOfFile( hMapFile,   // handle to map object
  85                         FILE_MAP_ALL_ACCESS, // read/write permission
  86                         0,
  87                         0,
  88                         sizeof( int ) );
  89     if ( pBuf )
  90     {
  91         *pBuf = nErrorCode;
  92         UnmapViewOfFile( pBuf );
  93     }
  94     else
  95         OutputDebugStringFormat( TEXT("Could not map view of file (%d).\n"), GetLastError() );
  96
  97     CloseHandle( hMapFile );
  98 }
  99
 100