Fix wxGrid editors background painting.

[wxWidgets.git] / src / common / file.cpp

diff --git a/src/common/file.cpp b/src/common/file.cpp
index d4a0e135511dc44c9feba92b6c4f8fcc47b1bbbe..f9badf53953e01b49bf63101b2c546f9515fe950 100644 (file)
--- a/src/common/file.cpp
+++ b/src/common/file.cpp
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        file.cpp
+// Name:        src/common/file.cpp

 // Purpose:     wxFile - encapsulates low-level "file descriptor"
 //              wxTempFile
 // Author:      Vadim Zeitlin
 // Purpose:     wxFile - encapsulates low-level "file descriptor"
 //              wxTempFile
 // Author:      Vadim Zeitlin


@@ -7,104 +7,129 @@
 // Created:     29/01/98
 // RCS-ID:      $Id$
 // Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
 // Created:     29/01/98
 // RCS-ID:      $Id$
 // Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>

-// Licence:    wxWindows license
+// Licence:     wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 // ----------------------------------------------------------------------------
 // headers
 // ----------------------------------------------------------------------------
 
 /////////////////////////////////////////////////////////////////////////////
 
 // ----------------------------------------------------------------------------
 // headers
 // ----------------------------------------------------------------------------
 

-#ifdef __GNUG__
-#pragma implementation "file.h"
-#endif
-

 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"

-#include "wx/defs.h"

 
 #ifdef __BORLANDC__
 
 #ifdef __BORLANDC__

-#pragma hdrstop
+  #pragma hdrstop

 #endif
 
 #endif
 

+#if wxUSE_FILE
+

 // standard
 // standard

-#if    defined(__WXMSW__) && !defined(__GNUWIN32__)
-  #include  <io.h>
-
-  #define   WIN32_LEAN_AND_MEAN
-  #define   NOSERVICE
-  #define   NOIME
-  #define   NOATOM
-  #define   NOGDI
-  #define   NOGDICAPMASKS
-  #define   NOMETAFILE
-  #define   NOMINMAX
-  #define   NOMSG
-  #define   NOOPENFILE
-  #define   NORASTEROPS
-  #define   NOSCROLL
-  #define   NOSOUND
-  #define   NOSYSMETRICS
-  #define   NOTEXTMETRIC
-  #define   NOWH
-  #define   NOCOMM
-  #define   NOKANJI
-  #define   NOCRYPT
-  #define   NOMCX
-  #include  <windows.h>     // for GetTempFileName
+#if defined(__WINDOWS__) && !defined(__GNUWIN32__) && !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
+
+#define   WIN32_LEAN_AND_MEAN
+#define   NOSERVICE
+#define   NOIME
+#define   NOATOM
+#define   NOGDI
+#define   NOGDICAPMASKS
+#define   NOMETAFILE
+#define   NOMINMAX
+#define   NOMSG
+#define   NOOPENFILE
+#define   NORASTEROPS
+#define   NOSCROLL
+#define   NOSOUND
+#define   NOSYSMETRICS
+#define   NOTEXTMETRIC
+#define   NOWH
+#define   NOCOMM
+#define   NOKANJI
+#define   NOCRYPT
+#define   NOMCX
+
+#elif defined(__WINDOWS__) && defined(__WXWINCE__)
+    #include  "wx/msw/missing.h"
+#elif (defined(__OS2__))
+    #include <io.h>

 #elif (defined(__UNIX__) || defined(__GNUWIN32__))
 #elif (defined(__UNIX__) || defined(__GNUWIN32__))

-  #include  <unistd.h>
+    #include  <unistd.h>
+    #include  <time.h>
+    #include  <sys/stat.h>
+    #ifdef __GNUWIN32__
+        #include "wx/msw/wrapwin.h"
+    #endif
+#elif defined(__DOS__)
+    #if defined(__WATCOMC__)
+       #include <io.h>
+    #elif defined(__DJGPP__)
+       #include <io.h>
+       #include <unistd.h>
+       #include <stdio.h>
+    #else
+        #error  "Please specify the header with file functions declarations."
+    #endif
+#elif (defined(__WXSTUBS__))
+    // Have to ifdef this for different environments
+    #include <io.h>
+#elif (defined(__WXMAC__))
+#if __MSL__ < 0x6000
+    int access( const char *path, int mode ) { return 0 ; }

 #else
 #else

-       #error  "Please specify the header with file functions declarations."
+    int _access( const char *path, int mode ) { return 0 ; }
+#endif
+    char* mktemp( char * path ) { return path ;}
+    #include <stat.h>
+    #include <unistd.h>
+#else
+    #error  "Please specify the header with file functions declarations."

 #endif  //Win/UNIX
 
 #include  <stdio.h>       // SEEK_xxx constants
 #endif  //Win/UNIX
 
 #include  <stdio.h>       // SEEK_xxx constants

-#include  <fcntl.h>       // O_RDONLY &c
-#include  <sys/types.h>   // needed for stat
-#include  <sys/stat.h>    // stat
-
-// Microsoft compiler loves underscores, feed them to it
-#ifdef    _MSC_VER
-  // functions
-  #define   open        _open
-  #define   close       _close
-  #define   read        _read
-  #define   write       _write
-  #define   lseek       _lseek
-  #define   fsync       _commit
-  #define   access      _access
-  #define   eof         _eof
-
-  // types
-  #define   stat        _stat
-
-  // constants
-  #define   O_RDONLY    _O_RDONLY
-  #define   O_WRONLY    _O_WRONLY
-  #define   O_RDWR      _O_RDWR
-  #define   O_EXCL      _O_EXCL
-  #define   O_CREAT     _O_CREAT
-  #define   O_BINARY    _O_BINARY
-
-  #define   S_IFDIR     _S_IFDIR
-  #define   S_IFREG     _S_IFREG
-
-  #define   S_IREAD     _S_IREAD
-  #define   S_IWRITE    _S_IWRITE
-#else
-  #define   tell(fd)    lseek(fd, 0, SEEK_CUR)
-#endif  //_MSC_VER

 
 

-// there is no distinction between text and binary files under Unix
-#ifdef         __UNIX__
-       #define         O_BINARY                (0)
-#endif //__UNIX__
+#ifndef __WXWINCE__
+    #include <errno.h>
+#endif

 
 

-// wxWindows
-#include  <wx/string.h>
-#include  <wx/intl.h>
-#include  <wx/file.h>
-#include  <wx/log.h>
+// Windows compilers don't have these constants
+#ifndef W_OK
+    enum
+    {
+        F_OK = 0,   // test for existence
+        X_OK = 1,   //          execute permission
+        W_OK = 2,   //          write
+        R_OK = 4    //          read
+    };
+#endif // W_OK
+
+// wxWidgets
+#ifndef WX_PRECOMP
+    #include  "wx/string.h"
+    #include  "wx/intl.h"
+    #include  "wx/log.h"
+    #include "wx/crt.h"
+#endif // !WX_PRECOMP
+
+#include  "wx/filename.h"
+#include  "wx/file.h"
+#include  "wx/filefn.h"
+
+// there is no distinction between text and binary files under Unix, so define
+// O_BINARY as 0 if the system headers don't do it already
+#if defined(__UNIX__) && !defined(O_BINARY)
+    #define   O_BINARY    (0)
+#endif  //__UNIX__
+
+#ifdef __WINDOWS__
+    #include "wx/msw/mslu.h"
+#endif
+
+#ifdef __WXWINCE__
+    #include "wx/msw/private.h"
+#endif

 
 

+#ifndef MAX_PATH
+    #define MAX_PATH 512
+#endif

 
 // ============================================================================
 // implementation of wxFile
 
 // ============================================================================
 // implementation of wxFile


@@ -113,10 +138,36 @@
 // ----------------------------------------------------------------------------
 // static functions
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // static functions
 // ----------------------------------------------------------------------------

-bool wxFile::Exists(const char *sz)
-{ 
-  struct stat st; 
-  return !access(sz, 0) && !stat(sz, &st) && (st.st_mode & S_IFREG);
+
+bool wxFile::Exists(const wxString& name)
+{
+    return wxFileExists(name);
+}
+
+bool wxFile::Access(const wxString& name, OpenMode mode)
+{
+    int how;
+
+    switch ( mode )
+    {
+        default:
+            wxFAIL_MSG(wxT("bad wxFile::Access mode parameter."));
+            // fall through
+
+        case read:
+            how = R_OK;
+            break;
+
+        case write:
+            how = W_OK;
+            break;
+
+        case read_write:
+            how = R_OK | W_OK;
+            break;
+    }
+
+    return wxAccess(name, how) == 0;

 }
 
 // ----------------------------------------------------------------------------
 }
 
 // ----------------------------------------------------------------------------


@@ -124,134 +175,218 @@ bool wxFile::Exists(const char *sz)
 // ----------------------------------------------------------------------------
 
 // ctors
 // ----------------------------------------------------------------------------
 
 // ctors

-wxFile::wxFile(const char *szFileName, OpenMode mode)
+wxFile::wxFile(const wxString& fileName, OpenMode mode)

 {
 {

-  m_fd = fd_invalid;
-  m_error = FALSE;
+    m_fd = fd_invalid;
+    m_lasterror = 0;

 
 

-  Open(szFileName, mode);
+    Open(fileName, mode);

 }
 
 }
 

-// dtor
-wxFile::~wxFile()
+bool wxFile::CheckForError(wxFileOffset rc) const

 {
 {

-  Close();
+    if ( rc != -1 )
+        return false;
+
+    const_cast<wxFile *>(this)->m_lasterror =
+#ifndef __WXWINCE__
+                                                errno
+#else
+                                                ::GetLastError()
+#endif
+                                                ;
+
+    return true;

 }
 
 // create the file, fail if it already exists and bOverwrite
 }
 
 // create the file, fail if it already exists and bOverwrite

-bool wxFile::Create(const char *szFileName, bool bOverwrite)
+bool wxFile::Create(const wxString& fileName, bool bOverwrite, int accessMode)

 {
 {

-  // if bOverwrite we create a new file or truncate the existing one,
-  // otherwise we only create the new file and fail if it already exists
-  int fd = open(szFileName, O_CREAT | (bOverwrite ? O_TRUNC : O_EXCL));
-
-  if ( fd == -1 ) {
-    wxLogSysError("can't create file '%s'", szFileName);
-    return FALSE;
-  }
-  else {
-    Attach(fd);
-    return TRUE;
-  }
+    // if bOverwrite we create a new file or truncate the existing one,
+    // otherwise we only create the new file and fail if it already exists
+    int fildes = wxOpen( fileName,
+                     O_BINARY | O_WRONLY | O_CREAT |
+                     (bOverwrite ? O_TRUNC : O_EXCL),
+                     accessMode );
+    if ( CheckForError(fildes) )
+    {
+        wxLogSysError(_("can't create file '%s'"), fileName);
+        return false;
+    }
+
+    Attach(fildes);
+    return true;

 }
 
 // open the file
 }
 
 // open the file

-bool wxFile::Open(const char *szFileName, OpenMode mode)
+bool wxFile::Open(const wxString& fileName, OpenMode mode, int accessMode)

 {
 {

-  int flags = O_BINARY;
-
-  switch ( mode ) {
-    case read:      
-      flags |= O_RDONLY; 
-      break;
-
-    case write:     
-      flags |= O_WRONLY | O_CREAT | O_TRUNC; 
-      break;
-
-    case write_append:
-      flags |= O_WRONLY | O_APPEND;
-      break;
-
-    case read_write: 
-      flags |= O_RDWR;
-      break;
-  }
-
-  int fd = open(szFileName, flags, S_IREAD | S_IWRITE);
-
-  if ( fd == -1 ) {
-    wxLogSysError("can't open file '%s'", szFileName);
-    return FALSE;
-  }
-  else {
-    Attach(fd);
-    return TRUE;
-  }
+    int flags = O_BINARY;
+
+    switch ( mode )
+    {
+        case read:
+            flags |= O_RDONLY;
+            break;
+
+        case write_append:
+            if ( wxFile::Exists(fileName) )
+            {
+                flags |= O_WRONLY | O_APPEND;
+                break;
+            }
+            //else: fall through as write_append is the same as write if the
+            //      file doesn't exist
+
+        case write:
+            flags |= O_WRONLY | O_CREAT | O_TRUNC;
+            break;
+
+        case write_excl:
+            flags |= O_WRONLY | O_CREAT | O_EXCL;
+            break;
+
+        case read_write:
+            flags |= O_RDWR;
+            break;
+    }
+
+#ifdef __WINDOWS__
+    // only read/write bits for "all" are supported by this function under
+    // Windows, and VC++ 8 returns EINVAL if any other bits are used in
+    // accessMode, so clear them as they have at best no effect anyhow
+    accessMode &= wxS_IRUSR | wxS_IWUSR;
+#endif // __WINDOWS__
+
+    int fildes = wxOpen( fileName, flags, accessMode);
+
+    if ( CheckForError(fildes) )
+    {
+        wxLogSysError(_("can't open file '%s'"), fileName);
+        return false;
+    }
+
+    Attach(fildes);
+    return true;

 }
 
 // close
 bool wxFile::Close()
 {
 }
 
 // close
 bool wxFile::Close()
 {

-  if ( IsOpened() ) {
-    if ( close(m_fd) == -1 ) {
-      wxLogSysError("can't close file descriptor %d", m_fd);
-      m_fd = fd_invalid;
-      return FALSE;
+    if ( IsOpened() ) {
+        if ( CheckForError(wxClose(m_fd)) )
+        {
+            wxLogSysError(_("can't close file descriptor %d"), m_fd);
+            m_fd = fd_invalid;
+            return false;
+        }
+        else
+            m_fd = fd_invalid;

     }
     }

-    else
-      m_fd = fd_invalid;
-  }

 
 

-  return TRUE;
+    return true;

 }
 
 // ----------------------------------------------------------------------------
 // read/write
 // ----------------------------------------------------------------------------
 
 }
 
 // ----------------------------------------------------------------------------
 // read/write
 // ----------------------------------------------------------------------------
 

+bool wxFile::ReadAll(wxString *str, const wxMBConv& conv)
+{
+    wxCHECK_MSG( str, false, wxS("Output string must be non-NULL") );
+
+    ssize_t length = Length();
+    wxCHECK_MSG( (wxFileOffset)length == Length(), false, wxT("huge file not supported") );
+
+    wxCharBuffer buf(length);
+    char* p = buf.data();
+    for ( ;; )
+    {
+        static const unsigned READSIZE = 4096;
+
+        ssize_t nread = Read(p, length > READSIZE ? READSIZE : length);
+        if ( nread == wxInvalidOffset )
+            return false;
+
+        p += nread;
+        if ( length <= nread )
+            break;
+
+        length -= nread;
+    }
+
+    *p = 0;
+
+    wxString strTmp(buf, conv);
+    str->swap(strTmp);
+
+    return true;
+}
+

 // read
 // read

-off_t wxFile::Read(void *pBuf, off_t nCount)
+ssize_t wxFile::Read(void *pBuf, size_t nCount)

 {
 {

-  wxCHECK( (pBuf != NULL) && IsOpened(), 0 );
-
-  int iRc = ::read(m_fd, pBuf, nCount);
-  if ( iRc == -1 ) {
-    wxLogSysError("can't read from file descriptor %d", m_fd);
-    return ofsInvalid;
-  }
-  else
-    return (uint)iRc;
+    wxCHECK( (pBuf != NULL) && IsOpened(), 0 );
+
+    ssize_t iRc = wxRead(m_fd, pBuf, nCount);
+
+    if ( CheckForError(iRc) )
+    {
+        wxLogSysError(_("can't read from file descriptor %d"), m_fd);
+        return wxInvalidOffset;
+    }
+
+    return iRc;

 }
 
 // write
 }
 
 // write

-uint wxFile::Write(const void *pBuf, uint nCount)
+size_t wxFile::Write(const void *pBuf, size_t nCount)

 {
 {

-  wxCHECK( (pBuf != NULL) && IsOpened(), 0 );
-
-  int iRc = ::write(m_fd, pBuf, nCount);
-  if ( iRc == -1 ) {
-    wxLogSysError("can't write to file descriptor %d", m_fd);
-    m_error = TRUE;
-    return 0;
-  }
-  else
+    wxCHECK( (pBuf != NULL) && IsOpened(), 0 );
+
+    ssize_t iRc = wxWrite(m_fd, pBuf, nCount);
+
+    if ( CheckForError(iRc) )
+    {
+        wxLogSysError(_("can't write to file descriptor %d"), m_fd);
+        iRc = 0;
+    }
+

     return iRc;
 }
 
     return iRc;
 }
 

+bool wxFile::Write(const wxString& s, const wxMBConv& conv)
+{
+  const wxWX2MBbuf buf = s.mb_str(conv);
+  if ( !buf )
+      return false;
+
+#if wxUSE_UNICODE
+  const size_t size = buf.length();
+#else
+  const size_t size = s.length();
+#endif
+
+  return Write(buf, size) == size;
+}
+

 // flush
 bool wxFile::Flush()
 {
 // flush
 bool wxFile::Flush()
 {

-  if ( IsOpened() ) {
-               // @@@ fsync() is not ANSI (BSDish)
-//    if ( fsync(m_fd) == -1 ) { // TODO
-      if (TRUE) {
-      wxLogSysError("can't flush file descriptor %d", m_fd);
-      return FALSE;
+#ifdef HAVE_FSYNC
+    // fsync() only works on disk files and returns errors for pipes, don't
+    // call it then
+    if ( IsOpened() && GetKind() == wxFILE_KIND_DISK )
+    {
+        if ( CheckForError(wxFsync(m_fd)) )
+        {
+            wxLogSysError(_("can't flush file descriptor %d"), m_fd);
+            return false;
+        }

     }
     }

-  }
+#endif // HAVE_FSYNC

 
 

-  return TRUE;
+    return true;

 }
 
 // ----------------------------------------------------------------------------
 }
 
 // ----------------------------------------------------------------------------


@@ -259,120 +394,129 @@ bool wxFile::Flush()
 // ----------------------------------------------------------------------------
 
 // seek
 // ----------------------------------------------------------------------------
 
 // seek

-off_t wxFile::Seek(off_t ofs, wxSeekMode mode)
+wxFileOffset wxFile::Seek(wxFileOffset ofs, wxSeekMode mode)

 {
 {

-  wxASSERT( IsOpened() );
-
-  int flag = -1;
-  switch ( mode ) {
-    case wxFromStart:
-      flag = SEEK_SET;
-      break;
-
-    case wxFromCurrent:
-      flag = SEEK_CUR;
-      break;
-
-    case wxFromEnd:
-      flag = SEEK_END;
-      break;
-
-    default:
-      wxFAIL_MSG("unknown seek origin");
-  }
-
-  int iRc = lseek(m_fd, ofs, flag);
-  if ( iRc == -1 ) {
-    wxLogSysError("can't seek on file descriptor %d", m_fd);
-    return ofsInvalid;
-  }
-  else
-    return (off_t)iRc;
+    wxASSERT_MSG( IsOpened(), wxT("can't seek on closed file") );
+    wxCHECK_MSG( ofs != wxInvalidOffset || mode != wxFromStart,
+                 wxInvalidOffset,
+                 wxT("invalid absolute file offset") );
+
+    int origin;
+    switch ( mode ) {
+        default:
+            wxFAIL_MSG(wxT("unknown seek origin"));
+
+        case wxFromStart:
+            origin = SEEK_SET;
+            break;
+
+        case wxFromCurrent:
+            origin = SEEK_CUR;
+            break;
+
+        case wxFromEnd:
+            origin = SEEK_END;
+            break;
+    }
+
+    wxFileOffset iRc = wxSeek(m_fd, ofs, origin);
+    if ( CheckForError(iRc) )
+    {
+        wxLogSysError(_("can't seek on file descriptor %d"), m_fd);
+    }
+
+    return iRc;

 }
 
 }
 

-// get current off_t
-off_t wxFile::Tell() const
+// get current file offset
+wxFileOffset wxFile::Tell() const

 {
 {

-  wxASSERT( IsOpened() );
-
-  int iRc = tell(m_fd);
-  if ( iRc == -1 ) {
-    wxLogSysError("can't get seek position on file descriptor %d", m_fd);
-    return ofsInvalid;
-  }
-  else
-    return (off_t)iRc;
+    wxASSERT( IsOpened() );
+
+    wxFileOffset iRc = wxTell(m_fd);
+    if ( CheckForError(iRc) )
+    {
+        wxLogSysError(_("can't get seek position on file descriptor %d"), m_fd);
+    }
+
+    return iRc;

 }
 
 // get current file length
 }
 
 // get current file length

-off_t wxFile::Length() const
+wxFileOffset wxFile::Length() const

 {
 {

-  wxASSERT( IsOpened() );
-
-  #ifdef  _MSC_VER
-    int iRc = _filelength(m_fd);
-  #else
-    int iRc = tell(m_fd);
-    if ( iRc != -1 ) {
-                       // @ have to use const_cast :-(
-      int iLen = ((wxFile *)this)->SeekEnd();
-      if ( iLen != -1 ) {
-        // restore old position
-        if ( ((wxFile *)this)->Seek(iRc) == -1 ) {
-          // error
-          iLen = -1;
+    wxASSERT( IsOpened() );
+
+    // we use a special method for Linux systems where files in sysfs (i.e.
+    // those under /sys typically) return length of 4096 bytes even when
+    // they're much smaller -- this is a problem as it results in errors later
+    // when we try reading 4KB from them
+#ifdef __LINUX__
+    struct stat st;
+    if ( fstat(m_fd, &st) == 0 )
+    {
+        // returning 0 for the special files indicates to the caller that they
+        // are not seekable
+        return st.st_blocks ? st.st_size : 0;
+    }
+    //else: failed to stat, try the normal method
+#endif // __LINUX__
+
+    wxFileOffset iRc = Tell();
+    if ( iRc != wxInvalidOffset ) {
+        wxFileOffset iLen = const_cast<wxFile *>(this)->SeekEnd();
+        if ( iLen != wxInvalidOffset ) {
+            // restore old position
+            if ( ((wxFile *)this)->Seek(iRc) == wxInvalidOffset ) {
+                // error
+                iLen = wxInvalidOffset;
+            }

         }
         }

-      }

 
 

-      iRc = iLen;
+        iRc = iLen;

     }
 
     }
 

-  #endif  //_MSC_VER
+    if ( iRc == wxInvalidOffset )
+    {
+        // last error was already set by Tell()
+        wxLogSysError(_("can't find length of file on file descriptor %d"), m_fd);
+    }

 
 

-  if ( iRc == -1 ) {
-    wxLogSysError("can't find length of file on file descriptor %d", m_fd);
-    return ofsInvalid;
-  }
-  else
-    return (off_t)iRc;
+    return iRc;

 }
 
 // is end of file reached?
 bool wxFile::Eof() const
 {
 }
 
 // is end of file reached?
 bool wxFile::Eof() const
 {

-  wxASSERT( IsOpened() );
+    wxASSERT( IsOpened() );

 
 

-  int iRc;
+    wxFileOffset iRc;

 
 

-  #if defined(__UNIX__) || defined(__GNUWIN32__)
+#if defined(__DOS__) || defined(__UNIX__) || defined(__GNUWIN32__)

     // @@ this doesn't work, of course, on unseekable file descriptors
     // @@ this doesn't work, of course, on unseekable file descriptors

-    off_t ofsCur = Tell(),
-          ofsMax = Length();
-    if ( ofsCur == ofsInvalid || ofsMax == ofsInvalid )
-      iRc = -1;
+    wxFileOffset ofsCur = Tell(),
+    ofsMax = Length();
+    if ( ofsCur == wxInvalidOffset || ofsMax == wxInvalidOffset )
+        iRc = wxInvalidOffset;

     else
     else

-     iRc = ofsCur == ofsMax;
-  #else  // Windows and "native" compiler
-    iRc = eof(m_fd);
-  #endif // Windows/Unix
-
-  switch ( iRc ) {
-    case 1:
-      break;
+        iRc = ofsCur == ofsMax;
+#else  // Windows and "native" compiler
+    iRc = wxEof(m_fd);
+#endif // Windows/Unix

 
 

-    case 0:
-      return FALSE;
+    if ( iRc == 0 )
+        return false;

 
 

-    case -1:
-      wxLogSysError("can't determine if the end of file is reached on "
-                    "descriptor %d", m_fd);
-      break;
-
-    default:
-      wxFAIL_MSG("invalid eof() return value.");
-  }
+    if ( iRc == wxInvalidOffset )
+    {
+        wxLogSysError(_("can't determine if the end of file is reached on descriptor %d"), m_fd);
+    }
+    else if ( iRc != 1 )
+    {
+        wxFAIL_MSG(wxT("invalid eof() return value."));
+    }

 
 

-  return TRUE;
+    return true;

 }
 
 // ============================================================================
 }
 
 // ============================================================================


@@ -382,34 +526,64 @@ bool wxFile::Eof() const
 // ----------------------------------------------------------------------------
 // construction
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // construction
 // ----------------------------------------------------------------------------

+

 wxTempFile::wxTempFile(const wxString& strName)
 {
 wxTempFile::wxTempFile(const wxString& strName)
 {

-  Open(strName);
+    Open(strName);

 }
 
 bool wxTempFile::Open(const wxString& strName)
 {
 }
 
 bool wxTempFile::Open(const wxString& strName)
 {

-  m_strName = strName;
-  
-  // we want to create the file in the same directory as strName because
-  // otherwise rename() in Commit() might not work (if the files are on
-  // different partitions for example). Unfortunately, the only standard
-  // (POSIX) temp file creation function tmpnam() can't do it.
-  #ifdef  __UNIX__
-    static const char *szMktempSuffix = "XXXXXX";
-    m_strTemp << strName << szMktempSuffix;
-    mktemp((char *)m_strTemp.c_str()); // will do because length doesn't change
-  #else // Windows
-    wxString strPath;
-    wxSplitPath(strName, &strPath, NULL, NULL);
-    if ( strPath.IsEmpty() )
-      strPath = '.';  // GetTempFileName will fail if we give it empty string
-    if ( !GetTempFileName(strPath, "wx_",0, m_strTemp.GetWriteBuf(MAX_PATH)) )
-      wxLogLastError("GetTempFileName");
-    m_strTemp.UngetWriteBuf();
-  #endif  // Windows/Unix
-    
-  return m_file.Open(m_strTemp, wxFile::write);
+    // we must have an absolute filename because otherwise CreateTempFileName()
+    // would create the temp file in $TMP (i.e. the system standard location
+    // for the temp files) which might be on another volume/drive/mount and
+    // wxRename()ing it later to m_strName from Commit() would then fail
+    //
+    // with the absolute filename, the temp file is created in the same
+    // directory as this one which ensures that wxRename() may work later
+    wxFileName fn(strName);
+    if ( !fn.IsAbsolute() )
+    {
+        fn.Normalize(wxPATH_NORM_ABSOLUTE);
+    }
+
+    m_strName = fn.GetFullPath();
+
+    m_strTemp = wxFileName::CreateTempFileName(m_strName, &m_file);
+
+    if ( m_strTemp.empty() )
+    {
+        // CreateTempFileName() failed
+        return false;
+    }
+
+#ifdef __UNIX__
+    // the temp file should have the same permissions as the original one
+    mode_t mode;
+
+    wxStructStat st;
+    if ( stat( (const char*) m_strName.fn_str(), &st) == 0 )
+    {
+        mode = st.st_mode;
+    }
+    else
+    {
+        // file probably didn't exist, just give it the default mode _using_
+        // user's umask (new files creation should respect umask)
+        mode_t mask = umask(0777);
+        mode = 0666 & ~mask;
+        umask(mask);
+    }
+
+    if ( chmod( (const char*) m_strTemp.fn_str(), mode) == -1 )
+    {
+#ifndef __OS2__
+        wxLogSysError(_("Failed to set temporary file permissions"));
+#endif
+    }
+#endif // Unix
+
+    return true;

 }
 
 // ----------------------------------------------------------------------------
 }
 
 // ----------------------------------------------------------------------------


@@ -418,30 +592,35 @@ bool wxTempFile::Open(const wxString& strName)
 
 wxTempFile::~wxTempFile()
 {
 
 wxTempFile::~wxTempFile()
 {

-  if ( IsOpened() )
-    Discard();
+    if ( IsOpened() )
+        Discard();

 }
 
 bool wxTempFile::Commit()
 {
 }
 
 bool wxTempFile::Commit()
 {

-  m_file.Close();
+    m_file.Close();

 
 

-  if ( wxFile::Exists(m_strName) && remove(m_strName) != 0 ) {
-    wxLogSysError("can't remove file '%s'", m_strName.c_str());
-    return FALSE;
-  }
+    if ( wxFile::Exists(m_strName) && wxRemove(m_strName) != 0 ) {
+        wxLogSysError(_("can't remove file '%s'"), m_strName.c_str());
+        return false;
+    }

 
 

-  if ( rename(m_strTemp, m_strName) != 0 ) {
-    wxLogSysError("can't commit changes to file '%s'", m_strName.c_str());
-    return FALSE;
-  }
+    if ( !wxRenameFile(m_strTemp, m_strName)  ) {
+        wxLogSysError(_("can't commit changes to file '%s'"), m_strName.c_str());
+        return false;
+    }

 
 

-  return TRUE;
+    return true;

 }
 
 void wxTempFile::Discard()
 {
 }
 
 void wxTempFile::Discard()
 {

-  m_file.Close();
-  if ( remove(m_strTemp) != 0 )
-    wxLogSysError("can't remove temporary file '%s'", m_strTemp.c_str());
+    m_file.Close();
+    if ( wxRemove(m_strTemp) != 0 )
+    {
+        wxLogSysError(_("can't remove temporary file '%s'"), m_strTemp.c_str());
+    }

 }
 }

+
+#endif // wxUSE_FILE
+