filter/source/placeware/tempfile.cxx

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   9  * $RCSfile: tempfile.cxx,v $
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  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_filter.hxx"
  33
  34
  35 #include <osl/file.h>
  36
  37 #if defined( UNX) || defined(OS2)
  38
  39 #include <stdio.h>
  40 #include <string.h>
  41 #include <osl/thread.h>
  42
  43 oslFileError SAL_CALL my_getTempDirURL( rtl_uString** pustrTempDir )
  44 {
  45     const char *pValue = getenv( "TEMP" );
  46
  47     if ( !pValue )
  48     {
  49         pValue = getenv( "TMP" );
  50 #if defined(SOLARIS) || defined (LINUX)
  51         if ( !pValue )
  52             pValue = P_tmpdir;
  53 #endif
  54     }
  55
  56     if ( pValue )
  57     {
  58         oslFileError error;
  59         rtl_uString     *ustrTempPath = NULL;
  60
  61         rtl_string2UString( &ustrTempPath, pValue, strlen( pValue ), osl_getThreadTextEncoding(), OSTRING_TO_OUSTRING_CVTFLAGS );
  62         error = osl_getFileURLFromSystemPath( ustrTempPath, pustrTempDir );
  63         rtl_uString_release( ustrTempPath );
  64
  65         return error;
  66     }
  67     else
  68         return osl_File_E_NOENT;
  69 }
  70 #else
  71
  72 #ifdef NDEBUG
  73 #    define NO_DEBUG_CRT
  74 #endif
  75
  76 #ifndef _WIN32_WINNT
  77 #       define _WIN32_WINNT 0x0400
  78 #       define _CTYPE_DISABLE_MACROS /* wg. dynamischer C-Runtime MH */
  79 #endif
  80
  81 #if defined _MSC_VER
  82 #pragma warning(push, 1)
  83 #endif
  84
  85 #define WIN32_LEAN_AND_MEAN
  86 #include <windows.h>
  87 #include <malloc.h>
  88
  89 #if defined _MSC_VER
  90 #pragma warning(pop)
  91 #endif
  92
  93 #define elementsof(arr) (sizeof(arr)/sizeof(arr[0]))
  94
  95 oslFileError SAL_CALL my_getTempDirURL( rtl_uString** pustrTempDir )
  96 {
  97     WCHAR       szBuffer[MAX_PATH];
  98     LPWSTR      lpBuffer = szBuffer;
  99     DWORD       nBufferLength = elementsof(szBuffer) - 1;
 100
 101     DWORD                       nLength;
 102     oslFileError        error;
 103
 104     do
 105     {
 106         nLength = GetTempPathW( elementsof(szBuffer), lpBuffer );
 107         if ( nLength > nBufferLength )
 108         {
 109             nLength++;
 110             lpBuffer = (LPWSTR)alloca( sizeof(WCHAR) * nLength );
 111             nBufferLength = nLength - 1;
 112         }
 113     } while ( nLength > nBufferLength );
 114
 115     if ( nLength )
 116     {
 117         rtl_uString     *ustrTempPath = NULL;
 118
 119         if ( '\\' == lpBuffer[nLength-1] )
 120             lpBuffer[nLength-1] = 0;
 121
 122         rtl_uString_newFromStr( &ustrTempPath, reinterpret_cast<const sal_Unicode*>(lpBuffer) );
 123
 124         error = osl_getFileURLFromSystemPath( ustrTempPath, pustrTempDir );
 125
 126         rtl_uString_release( ustrTempPath );
 127     }
 128     else
 129         error = GetLastError() == ERROR_SUCCESS ? osl_File_E_None : osl_File_E_INVAL;
 130
 131     return error;
 132 }
 133 #endif
 134
 135 #include "tempfile.hxx"
 136
 137 using namespace rtl;
 138
 139 TempFile::TempFile( const OUString& rTempFileURL )
 140 :osl::File( rTempFileURL ), maURL( rTempFileURL )
 141 {
 142 }
 143
 144 TempFile::~TempFile()
 145 {
 146     close();
 147
 148     if( maURL.getLength() )
 149         osl::File::remove( maURL );
 150 }
 151
 152 OUString TempFile::createTempFileURL()
 153 {
 154     OUString aTempFileURL;
 155
 156     const sal_uInt32 nRadix = 26;
 157
 158     OUString aTempDirURL;
 159     /* oslFileError nRC = */ my_getTempDirURL( &aTempDirURL.pData );
 160
 161     static sal_uInt32 u = osl_getGlobalTimer();
 162     for ( sal_uInt32 nOld = u; ++u != nOld; )
 163     {
 164         u %= (nRadix*nRadix*nRadix);
 165         OUString aTmp( aTempDirURL );
 166         if( aTmp.getStr()[ aTmp.getLength() - 1 ] != sal_Unicode( '/' ) )
 167             aTmp += OUString( RTL_CONSTASCII_USTRINGPARAM( "/" ));
 168         aTmp += OUString::valueOf( (sal_Int32) (unsigned) u, nRadix );
 169         aTmp += OUString::createFromAscii( ".tmp" );
 170
 171         osl::File aFile( aTmp );
 172         osl::FileBase::RC err = aFile.open(osl_File_OpenFlag_Create);
 173         if (  err == FileBase::E_None )
 174         {
 175             aTempFileURL = aTmp;
 176             aFile.close();
 177             break;
 178         }
 179         else if ( err != FileBase::E_EXIST )
 180         {
 181              // if f.e. name contains invalid chars stop trying to create files
 182              break;
 183         }
 184     }
 185
 186     return aTempFileURL;
 187 }
 188
 189 OUString TempFile::getFileURL()
 190 {
 191     return maURL;
 192 }