X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/489f6cf713b6b5bd9746af238b260c7d13d1dc40..bb8204ef8236a9d1f39516832947ea4081f22146:/src/common/filename.cpp

diff --git a/src/common/filename.cpp b/src/common/filename.cpp
index c85163a67c..98af00ab43 100644
--- a/src/common/filename.cpp
+++ b/src/common/filename.cpp
@@ -60,10 +60,6 @@
 // headers
 // ----------------------------------------------------------------------------
 
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-#pragma implementation "filename.h"
-#endif
-
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
@@ -72,24 +68,23 @@
 #endif
 
 #ifndef WX_PRECOMP
-#include "wx/intl.h"
-#include "wx/log.h"
-#include "wx/file.h"
+    #ifdef __WXMSW__
+        #include "wx/msw/wrapwin.h" // For GetShort/LongPathName
+    #endif
+    #include "wx/dynarray.h"
+    #include "wx/intl.h"
+    #include "wx/log.h"
+    #include "wx/utils.h"
 #endif
 
 #include "wx/filename.h"
+#include "wx/private/filename.h"
 #include "wx/tokenzr.h"
 #include "wx/config.h"          // for wxExpandEnvVars
-#include "wx/utils.h"
-#include "wx/file.h"
 #include "wx/dynlib.h"
 
-// For GetShort/LongPathName
-#ifdef __WIN32__
-#include "wx/msw/wrapwin.h"
-#if defined(__MINGW32__)
-#include "wx/msw/gccpriv.h"
-#endif
+#if defined(__WIN32__) && defined(__MINGW32__)
+    #include "wx/msw/gccpriv.h"
 #endif
 
 #ifdef __WXWINCE__
@@ -142,6 +137,10 @@
 #define MAX_PATH _MAX_PATH
 #endif
 
+
+wxULongLong wxInvalidSize = (unsigned)-1;
+
+
 // ----------------------------------------------------------------------------
 // private classes
 // ----------------------------------------------------------------------------
@@ -522,12 +521,12 @@ bool wxFileName::FileExists( const wxString &file )
 
 bool wxFileName::DirExists() const
 {
-    return wxFileName::DirExists( GetFullPath() );
+    return wxFileName::DirExists( GetPath() );
 }
 
 bool wxFileName::DirExists( const wxString &dir )
 {
-    return ::wxPathExists( dir );
+    return ::wxDirExists( dir );
 }
 
 // ----------------------------------------------------------------------------
@@ -565,7 +564,7 @@ wxString wxFileName::GetCwd(const wxString& volume)
 
 bool wxFileName::SetCwd()
 {
-    return wxFileName::SetCwd( GetFullPath() );
+    return wxFileName::SetCwd( GetPath() );
 }
 
 bool wxFileName::SetCwd( const wxString &cwd )
@@ -583,68 +582,135 @@ wxString wxFileName::GetHomeDir()
     return ::wxGetHomeDir();
 }
 
-#if wxUSE_FILE
 
-void wxFileName::AssignTempFileName(const wxString& prefix, wxFile *fileTemp)
+// ----------------------------------------------------------------------------
+// CreateTempFileName
+// ----------------------------------------------------------------------------
+
+#if wxUSE_FILE || wxUSE_FFILE
+
+
+#if !defined wx_fdopen && defined HAVE_FDOPEN
+    #define wx_fdopen fdopen
+#endif
+
+// NB: GetTempFileName() under Windows creates the file, so using
+//     O_EXCL there would fail
+#ifdef __WINDOWS__
+    #define wxOPEN_EXCL 0
+#else
+    #define wxOPEN_EXCL O_EXCL
+#endif
+
+
+#ifdef wxOpenOSFHandle
+#define WX_HAVE_DELETE_ON_CLOSE
+// On Windows create a file with the FILE_FLAGS_DELETE_ON_CLOSE flags.
+//
+static int wxOpenWithDeleteOnClose(const wxString& filename)
 {
-    wxString tempname = CreateTempFileName(prefix, fileTemp);
-    if ( tempname.empty() )
-    {
-        // error, failed to get temp file name
-        Clear();
-    }
-    else // ok
-    {
-        Assign(tempname);
-    }
+    DWORD access = GENERIC_READ | GENERIC_WRITE;
+
+    DWORD disposition = OPEN_ALWAYS;
+
+    DWORD attributes = FILE_ATTRIBUTE_TEMPORARY |
+                       FILE_FLAG_DELETE_ON_CLOSE;
+
+    HANDLE h = ::CreateFile(filename, access, 0, NULL,
+                            disposition, attributes, NULL);
+
+    return wxOpenOSFHandle(h, 0);
 }
+#endif // wxOpenOSFHandle
 
-/* static */
-wxString
-wxFileName::CreateTempFileName(const wxString& prefix, wxFile *fileTemp)
+
+// Helper to open the file
+//
+static int wxTempOpen(const wxString& path, bool *deleteOnClose)
+{
+#ifdef WX_HAVE_DELETE_ON_CLOSE
+    if (*deleteOnClose)
+        return wxOpenWithDeleteOnClose(path);
+#endif
+
+    *deleteOnClose = false;
+
+    return wxOpen(path, wxO_BINARY | O_RDWR | O_CREAT | wxOPEN_EXCL, 0600);
+}
+
+
+#if wxUSE_FFILE
+// Helper to open the file and attach it to the wxFFile
+//
+static bool wxTempOpen(wxFFile *file, const wxString& path, bool *deleteOnClose)
+{
+#ifndef wx_fdopen
+    *deleteOnClose = false;
+    return file->Open(path, _T("w+b"));
+#else // wx_fdopen
+    int fd = wxTempOpen(path, deleteOnClose);
+    if (fd != -1)
+        return false;
+    file->Attach(wx_fdopen(fd, "w+b"));
+    return file->IsOpened();
+#endif // wx_fdopen
+}
+#endif // wxUSE_FFILE
+
+
+#if !wxUSE_FILE
+    #define WXFILEARGS(x, y) y
+#elif !wxUSE_FFILE
+    #define WXFILEARGS(x, y) x
+#else
+    #define WXFILEARGS(x, y) x, y
+#endif
+
+
+// Implementation of wxFileName::CreateTempFileName().
+//
+static wxString wxCreateTempImpl(
+        const wxString& prefix,
+        WXFILEARGS(wxFile *fileTemp, wxFFile *ffileTemp),
+        bool *deleteOnClose = NULL)
 {
+#if wxUSE_FILE && wxUSE_FFILE
+    wxASSERT(fileTemp == NULL || ffileTemp == NULL);
+#endif
     wxString path, dir, name;
+    bool wantDeleteOnClose = false;
+
+    if (deleteOnClose)
+    {
+        // set the result to false initially
+        wantDeleteOnClose = *deleteOnClose;
+        *deleteOnClose = false;
+    }
+    else
+    {
+        // easier if it alwasys points to something
+        deleteOnClose = &wantDeleteOnClose;
+    }
 
     // use the directory specified by the prefix
-    SplitPath(prefix, &dir, &name, NULL /* extension */);
+    wxFileName::SplitPath(prefix, &dir, &name, NULL /* extension */);
 
-#if defined(__WXWINCE__)
     if (dir.empty())
     {
-        // FIXME. Create \temp dir?
-        dir = wxT("\\");
+        dir = wxFileName::GetTempDir();
     }
-    path = dir + wxT("\\") + prefix;
+
+#if defined(__WXWINCE__)
+    path = dir + wxT("\\") + name;
     int i = 1;
-    while (FileExists(path))
+    while (wxFileName::FileExists(path))
     {
-        path = dir + wxT("\\") + prefix ;
+        path = dir + wxT("\\") + name ;
         path << i;
         i ++;
     }
 
 #elif defined(__WINDOWS__) && !defined(__WXMICROWIN__)
-
-    if ( dir.empty() )
-    {
-        if ( !::GetTempPath(MAX_PATH, wxStringBuffer(dir, MAX_PATH + 1)) )
-        {
-            wxLogLastError(_T("GetTempPath"));
-        }
-
-        if ( dir.empty() )
-        {
-            // GetTempFileName() fails if we pass it an empty string
-            dir = _T('.');
-        }
-    }
-    else // we have a dir to create the file in
-    {
-        // ensure we use only the back slashes as GetTempFileName(), unlike all
-        // the other APIs, is picky and doesn't accept the forward ones
-        dir.Replace(_T("/"), _T("\\"));
-    }
-
     if ( !::GetTempFileName(dir, name, 0, wxStringBuffer(path, MAX_PATH + 1)) )
     {
         wxLogLastError(_T("GetTempFileName"));
@@ -653,29 +719,6 @@ wxFileName::CreateTempFileName(const wxString& prefix, wxFile *fileTemp)
     }
 
 #else // !Windows
-    if ( dir.empty() )
-    {
-#if defined(__WXMAC__) && !defined(__DARWIN__)
-        dir = wxMacFindFolder(  (short) kOnSystemDisk, kTemporaryFolderType, kCreateFolder ) ;
-#else // !Mac
-        dir = wxGetenv(_T("TMP"));
-        if ( dir.empty() )
-        {
-            dir = wxGetenv(_T("TEMP"));
-        }
-
-        if ( dir.empty() )
-        {
-            // default
-            #if defined(__DOS__) || defined(__OS2__)
-                dir = _T(".");
-            #else
-                dir = _T("/tmp");
-            #endif
-        }
-#endif // Mac/!Mac
-    }
-
     path = dir;
 
     if ( !wxEndsWithPathSeparator(dir) &&
@@ -705,12 +748,28 @@ wxFileName::CreateTempFileName(const wxString& prefix, wxFile *fileTemp)
     {
         path = wxConvFile.cMB2WX( (const char*) buf );
 
+    #if wxUSE_FILE
         // avoid leaking the fd
         if ( fileTemp )
         {
             fileTemp->Attach(fdTemp);
         }
         else
+    #endif
+
+    #if wxUSE_FFILE
+        if ( ffileTemp )
+        {
+        #ifdef wx_fdopen
+            ffileTemp->Attach(wx_fdopen(fdTemp, "r+b"));
+        #else
+            ffileTemp->Open(path, _T("r+b"));
+            close(fdTemp);
+        #endif
+        }
+        else
+    #endif
+
         {
             close(fdTemp);
         }
@@ -722,7 +781,7 @@ wxFileName::CreateTempFileName(const wxString& prefix, wxFile *fileTemp)
     path += _T("XXXXXX");
 
     wxCharBuffer buf = wxConvFile.cWX2MB( path );
-    if ( !mktemp( (const char*) buf ) )
+    if ( !mktemp( (char*)(const char*) buf ) )
     {
         path.clear();
     }
@@ -743,7 +802,7 @@ wxFileName::CreateTempFileName(const wxString& prefix, wxFile *fileTemp)
     {
         // 3 hex digits is enough for numTries == 1000 < 4096
         pathTry = path + wxString::Format(_T("%.03x"), (unsigned int) n);
-        if ( !FileExists(pathTry) )
+        if ( !wxFileName::FileExists(pathTry) )
         {
             break;
         }
@@ -754,9 +813,6 @@ wxFileName::CreateTempFileName(const wxString& prefix, wxFile *fileTemp)
     path = pathTry;
 #endif // HAVE_MKTEMP/!HAVE_MKTEMP
 
-    if ( !path.empty() )
-    {
-    }
 #endif // HAVE_MKSTEMP/!HAVE_MKSTEMP
 
 #endif // Windows/!Windows
@@ -765,20 +821,33 @@ wxFileName::CreateTempFileName(const wxString& prefix, wxFile *fileTemp)
     {
         wxLogSysError(_("Failed to create a temporary file name"));
     }
-    else if ( fileTemp && !fileTemp->IsOpened() )
+    else
     {
+        bool ok = true;
+
         // open the file - of course, there is a race condition here, this is
         // why we always prefer using mkstemp()...
-        //
-        // NB: GetTempFileName() under Windows creates the file, so using
-        //     write_excl there would fail
-        if ( !fileTemp->Open(path,
-#if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
-                             wxFile::write,
-#else
-                             wxFile::write_excl,
-#endif
-                             wxS_IRUSR | wxS_IWUSR) )
+    #if wxUSE_FILE
+        if ( fileTemp && !fileTemp->IsOpened() )
+        {
+            *deleteOnClose = wantDeleteOnClose;
+            int fd = wxTempOpen(path, deleteOnClose);
+            if (fd != -1)
+                fileTemp->Attach(fd);
+            else
+                ok = false;
+        }
+    #endif
+
+    #if wxUSE_FFILE
+        if ( ffileTemp && !ffileTemp->IsOpened() )
+        {
+            *deleteOnClose = wantDeleteOnClose;
+            ok = wxTempOpen(ffileTemp, path, deleteOnClose);
+        }
+    #endif
+
+        if ( !ok )
         {
             // FIXME: If !ok here should we loop and try again with another
             //        file name?  That is the standard recourse if open(O_EXCL)
@@ -794,15 +863,188 @@ wxFileName::CreateTempFileName(const wxString& prefix, wxFile *fileTemp)
     return path;
 }
 
+
+static bool wxCreateTempImpl(
+        const wxString& prefix,
+        WXFILEARGS(wxFile *fileTemp, wxFFile *ffileTemp),
+        wxString *name)
+{
+    bool deleteOnClose = true;
+
+    *name = wxCreateTempImpl(prefix,
+                             WXFILEARGS(fileTemp, ffileTemp),
+                             &deleteOnClose);
+
+    bool ok = !name->empty();
+
+    if (deleteOnClose)
+        name->clear();
+#ifdef __UNIX__
+    else if (ok && wxRemoveFile(*name))
+        name->clear();
+#endif
+
+    return ok;
+}
+
+
+static void wxAssignTempImpl(
+        wxFileName *fn,
+        const wxString& prefix,
+        WXFILEARGS(wxFile *fileTemp, wxFFile *ffileTemp))
+{
+    wxString tempname;
+    tempname = wxCreateTempImpl(prefix, WXFILEARGS(fileTemp, ffileTemp));
+
+    if ( tempname.empty() )
+    {
+        // error, failed to get temp file name
+        fn->Clear();
+    }
+    else // ok
+    {
+        fn->Assign(tempname);
+    }
+}
+
+
+void wxFileName::AssignTempFileName(const wxString& prefix)
+{
+    wxAssignTempImpl(this, prefix, WXFILEARGS(NULL, NULL));
+}
+
+/* static */
+wxString wxFileName::CreateTempFileName(const wxString& prefix)
+{
+    return wxCreateTempImpl(prefix, WXFILEARGS(NULL, NULL));
+}
+
+#endif // wxUSE_FILE || wxUSE_FFILE
+
+
+#if wxUSE_FILE
+
+wxString wxCreateTempFileName(const wxString& prefix,
+                              wxFile *fileTemp,
+                              bool *deleteOnClose)
+{
+    return wxCreateTempImpl(prefix, WXFILEARGS(fileTemp, NULL), deleteOnClose);
+}
+
+bool wxCreateTempFile(const wxString& prefix,
+                      wxFile *fileTemp,
+                      wxString *name)
+{
+    return wxCreateTempImpl(prefix, WXFILEARGS(fileTemp, NULL), name);
+}
+
+void wxFileName::AssignTempFileName(const wxString& prefix, wxFile *fileTemp)
+{
+    wxAssignTempImpl(this, prefix, WXFILEARGS(fileTemp, NULL));
+}
+
+/* static */
+wxString
+wxFileName::CreateTempFileName(const wxString& prefix, wxFile *fileTemp)
+{
+    return wxCreateTempFileName(prefix, fileTemp);
+}
+
 #endif // wxUSE_FILE
 
+
+#if wxUSE_FFILE
+
+wxString wxCreateTempFileName(const wxString& prefix,
+                              wxFFile *fileTemp,
+                              bool *deleteOnClose)
+{
+    return wxCreateTempImpl(prefix, WXFILEARGS(NULL, fileTemp), deleteOnClose);
+}
+
+bool wxCreateTempFile(const wxString& prefix,
+                      wxFFile *fileTemp,
+                      wxString *name)
+{
+    return wxCreateTempImpl(prefix, WXFILEARGS(NULL, fileTemp), name);
+
+}
+
+void wxFileName::AssignTempFileName(const wxString& prefix, wxFFile *fileTemp)
+{
+    wxAssignTempImpl(this, prefix, WXFILEARGS(NULL, fileTemp));
+}
+
+/* static */
+wxString
+wxFileName::CreateTempFileName(const wxString& prefix, wxFFile *fileTemp)
+{
+    return wxCreateTempFileName(prefix, fileTemp);
+}
+
+#endif // wxUSE_FFILE
+
+
 // ----------------------------------------------------------------------------
 // directory operations
 // ----------------------------------------------------------------------------
 
+wxString wxFileName::GetTempDir()
+{
+    wxString dir;
+    dir = wxGetenv(_T("TMPDIR"));
+    if (dir.empty())
+    {
+        dir = wxGetenv(_T("TMP"));
+        if (dir.empty())
+        {
+            dir = wxGetenv(_T("TEMP"));
+        }
+    }
+
+#if defined(__WXWINCE__)
+    if (dir.empty())
+    {
+        // FIXME. Create \temp dir?
+        if (DirExists(wxT("\\temp")))
+            dir = wxT("\\temp");
+    }
+#elif defined(__WINDOWS__) && !defined(__WXMICROWIN__)
+
+    if ( dir.empty() )
+    {
+        if ( !::GetTempPath(MAX_PATH, wxStringBuffer(dir, MAX_PATH + 1)) )
+        {
+            wxLogLastError(_T("GetTempPath"));
+        }
+
+        if ( dir.empty() )
+        {
+            // GetTempFileName() fails if we pass it an empty string
+            dir = _T('.');
+        }
+    }
+#else // !Windows
+
+    if ( dir.empty() )
+    {
+        // default
+#if defined(__DOS__) || defined(__OS2__)
+        dir = _T(".");
+#elif defined(__WXMAC__)
+        dir = wxMacFindFolder(short(kOnSystemDisk), kTemporaryFolderType, kCreateFolder);
+#else
+        dir = _T("/tmp");
+#endif
+    }
+#endif
+
+    return dir;
+}
+
 bool wxFileName::Mkdir( int perm, int flags )
 {
-    return wxFileName::Mkdir( GetFullPath(), perm, flags );
+    return wxFileName::Mkdir(GetPath(), perm, flags);
 }
 
 bool wxFileName::Mkdir( const wxString& dir, int perm, int flags )
@@ -853,7 +1095,7 @@ bool wxFileName::Mkdir( const wxString& dir, int perm, int flags )
 
 bool wxFileName::Rmdir()
 {
-    return wxFileName::Rmdir( GetFullPath() );
+    return wxFileName::Rmdir( GetPath() );
 }
 
 bool wxFileName::Rmdir( const wxString &dir )
@@ -1046,7 +1288,9 @@ bool wxFileName::Normalize(int flags,
 #include <shlguid.h>
 #endif
 
-bool wxFileName::GetShortcutTarget(const wxString& shortcutPath, wxString& targetFilename, wxString* arguments)
+bool wxFileName::GetShortcutTarget(const wxString& shortcutPath,
+                                   wxString& targetFilename,
+                                   wxString* arguments)
 {
     wxString path, file, ext;
     wxSplitPath(shortcutPath, & path, & file, & ext);
@@ -1075,6 +1319,8 @@ bool wxFileName::GetShortcutTarget(const wxString& shortcutPath, wxString& targe
                                 MAX_PATH);
 
             hres = ppf->Load(wsz, 0);
+            ppf->Release();
+
             if (SUCCEEDED(hres))
             {
                 wxChar buf[2048];
@@ -1095,11 +1341,13 @@ bool wxFileName::GetShortcutTarget(const wxString& shortcutPath, wxString& targe
                 }
             }
         }
+
+        psl->Release();
     }
-    psl->Release();
     return success;
 }
-#endif
+
+#endif // __WIN32__ && !__WXWINCE__
 
 
 // ----------------------------------------------------------------------------
@@ -1243,8 +1491,11 @@ wxString wxFileName::GetForbiddenChars(wxPathFormat format)
 }
 
 /* static */
-wxString wxFileName::GetVolumeSeparator(wxPathFormat format)
+wxString wxFileName::GetVolumeSeparator(wxPathFormat WXUNUSED_IN_WINCE(format))
 {
+#ifdef __WXWINCE__
+    return wxEmptyString;
+#else
     wxString sepVol;
 
     if ( (GetFormat(format) == wxPATH_DOS) ||
@@ -1255,6 +1506,7 @@ wxString wxFileName::GetVolumeSeparator(wxPathFormat format)
     //else: leave empty
 
     return sepVol;
+#endif
 }
 
 /* static */
@@ -1502,27 +1754,26 @@ wxString wxFileName::GetFullPath( wxPathFormat format ) const
 // Return the short form of the path (returns identity on non-Windows platforms)
 wxString wxFileName::GetShortPath() const
 {
-#if defined(__WXMSW__) && defined(__WIN32__) && !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
     wxString path(GetFullPath());
-    wxString pathOut;
+
+#if defined(__WXMSW__) && defined(__WIN32__) && !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
     DWORD sz = ::GetShortPathName(path, NULL, 0);
-    bool ok = sz != 0;
-    if ( ok )
+    if ( sz != 0 )
     {
-        ok = ::GetShortPathName
+        wxString pathOut;
+        if ( ::GetShortPathName
                (
                 path,
                 wxStringBuffer(pathOut, sz),
                 sz
-               ) != 0;
+               ) != 0 )
+        {
+            return pathOut;
+        }
     }
-    if (ok)
-        return pathOut;
+#endif // Windows
 
     return path;
-#else
-    return GetFullPath();
-#endif
 }
 
 // Return the long form of the path (returns identity on non-Windows platforms)
@@ -1532,116 +1783,115 @@ wxString wxFileName::GetLongPath() const
              path = GetFullPath();
 
 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
-    bool success = false;
 
 #if wxUSE_DYNAMIC_LOADER
     typedef DWORD (WINAPI *GET_LONG_PATH_NAME)(const wxChar *, wxChar *, DWORD);
 
-    static bool s_triedToLoad = false;
-
-    if ( !s_triedToLoad )
+    // this is MT-safe as in the worst case we're going to resolve the function
+    // twice -- but as the result is the same in both threads, it's ok
+    static GET_LONG_PATH_NAME s_pfnGetLongPathName = NULL;
+    if ( !s_pfnGetLongPathName )
     {
-        // suppress the errors about missing GetLongPathName[AW]
-        wxLogNull noLog;
+        static bool s_triedToLoad = false;
 
-        s_triedToLoad = true;
-        wxDynamicLibrary dllKernel(_T("kernel32"));
-        if ( dllKernel.IsLoaded() )
+        if ( !s_triedToLoad )
         {
-            // may succeed or fail depending on the Windows version
-            static GET_LONG_PATH_NAME s_pfnGetLongPathName = NULL;
-#ifdef _UNICODE
-            s_pfnGetLongPathName = (GET_LONG_PATH_NAME) dllKernel.GetSymbol(_T("GetLongPathNameW"));
-#else
-            s_pfnGetLongPathName = (GET_LONG_PATH_NAME) dllKernel.GetSymbol(_T("GetLongPathNameA"));
-#endif
+            s_triedToLoad = true;
 
-            if ( s_pfnGetLongPathName )
-            {
-                DWORD dwSize = (*s_pfnGetLongPathName)(path, NULL, 0);
-                bool ok = dwSize > 0;
+            wxDynamicLibrary dllKernel(_T("kernel32"));
 
-                if ( ok )
-                {
-                    DWORD sz = (*s_pfnGetLongPathName)(path, NULL, 0);
-                    ok = sz != 0;
-                    if ( ok )
-                    {
-                        ok = (*s_pfnGetLongPathName)
-                                (
-                                path,
-                                wxStringBuffer(pathOut, sz),
-                                sz
-                                ) != 0;
-                        success = true;
-                    }
-                }
+            const wxChar* GetLongPathName = _T("GetLongPathName")
+#if wxUSE_UNICODE
+                              _T("W");
+#else // ANSI
+                              _T("A");
+#endif // Unicode/ANSI
+
+            if ( dllKernel.HasSymbol(GetLongPathName) )
+            {
+                s_pfnGetLongPathName = (GET_LONG_PATH_NAME)
+                    dllKernel.GetSymbol(GetLongPathName);
             }
+
+            // note that kernel32.dll can be unloaded, it stays in memory
+            // anyhow as all Win32 programs link to it and so it's safe to call
+            // GetLongPathName() even after unloading it
         }
     }
 
-    if (success)
-        return pathOut;
+    if ( s_pfnGetLongPathName )
+    {
+        DWORD dwSize = (*s_pfnGetLongPathName)(path, NULL, 0);
+        if ( dwSize > 0 )
+        {
+            if ( (*s_pfnGetLongPathName)
+                 (
+                  path,
+                  wxStringBuffer(pathOut, dwSize),
+                  dwSize
+                 ) != 0 )
+            {
+                return pathOut;
+            }
+        }
+    }
 #endif // wxUSE_DYNAMIC_LOADER
 
-    if (!success)
-    {
-        // The OS didn't support GetLongPathName, or some other error.
-        // We need to call FindFirstFile on each component in turn.
+    // The OS didn't support GetLongPathName, or some other error.
+    // We need to call FindFirstFile on each component in turn.
 
-        WIN32_FIND_DATA findFileData;
-        HANDLE hFind;
+    WIN32_FIND_DATA findFileData;
+    HANDLE hFind;
 
-        if ( HasVolume() )
-            pathOut = GetVolume() +
-                      GetVolumeSeparator(wxPATH_DOS) +
-                      GetPathSeparator(wxPATH_DOS);
-        else
-            pathOut = wxEmptyString;
+    if ( HasVolume() )
+        pathOut = GetVolume() +
+                  GetVolumeSeparator(wxPATH_DOS) +
+                  GetPathSeparator(wxPATH_DOS);
+    else
+        pathOut = wxEmptyString;
 
-        wxArrayString dirs = GetDirs();
-        dirs.Add(GetFullName());
+    wxArrayString dirs = GetDirs();
+    dirs.Add(GetFullName());
 
-        wxString tmpPath;
+    wxString tmpPath;
 
-        size_t count = dirs.GetCount();
-        for ( size_t i = 0; i < count; i++ )
-        {
-            // We're using pathOut to collect the long-name path, but using a
-            // temporary for appending the last path component which may be
-            // short-name
-            tmpPath = pathOut + dirs[i];
+    size_t count = dirs.GetCount();
+    for ( size_t i = 0; i < count; i++ )
+    {
+        // We're using pathOut to collect the long-name path, but using a
+        // temporary for appending the last path component which may be
+        // short-name
+        tmpPath = pathOut + dirs[i];
 
-            if ( tmpPath.empty() )
-                continue;
+        if ( tmpPath.empty() )
+            continue;
 
-            // can't see this being necessary? MF
-            if ( tmpPath.Last() == GetVolumeSeparator(wxPATH_DOS) )
-            {
-                // Can't pass a drive and root dir to FindFirstFile,
-                // so continue to next dir
-                tmpPath += wxFILE_SEP_PATH;
-                pathOut = tmpPath;
-                continue;
-            }
+        // can't see this being necessary? MF
+        if ( tmpPath.Last() == GetVolumeSeparator(wxPATH_DOS) )
+        {
+            // Can't pass a drive and root dir to FindFirstFile,
+            // so continue to next dir
+            tmpPath += wxFILE_SEP_PATH;
+            pathOut = tmpPath;
+            continue;
+        }
 
-            hFind = ::FindFirstFile(tmpPath, &findFileData);
-            if (hFind == INVALID_HANDLE_VALUE)
-            {
-                // Error: most likely reason is that path doesn't exist, so
-                // append any unprocessed parts and return
-                for ( i += 1; i < count; i++ )
-                    tmpPath += wxFILE_SEP_PATH + dirs[i];
+        hFind = ::FindFirstFile(tmpPath, &findFileData);
+        if (hFind == INVALID_HANDLE_VALUE)
+        {
+            // Error: most likely reason is that path doesn't exist, so
+            // append any unprocessed parts and return
+            for ( i += 1; i < count; i++ )
+                tmpPath += wxFILE_SEP_PATH + dirs[i];
 
-                return tmpPath;
-            }
+            return tmpPath;
+        }
 
-            pathOut += findFileData.cFileName;
-            if ( (i < (count-1)) )
-                pathOut += wxFILE_SEP_PATH;
+        pathOut += findFileData.cFileName;
+        if ( (i < (count-1)) )
+            pathOut += wxFILE_SEP_PATH;
 
-            ::FindClose(hFind);
-        }
+        ::FindClose(hFind);
     }
 #else // !Win32
     pathOut = path;
@@ -1896,6 +2146,8 @@ bool wxFileName::SetTimes(const wxDateTime *dtAccess,
         }
     }
 #elif defined(__UNIX_LIKE__) || (defined(__DOS__) && defined(__WATCOMC__))
+    wxUnusedVar(dtCreate);
+
     if ( !dtAccess && !dtMod )
     {
         // can't modify the creation time anyhow, don't try
@@ -1912,6 +2164,9 @@ bool wxFileName::SetTimes(const wxDateTime *dtAccess,
         return true;
     }
 #else // other platform
+    wxUnusedVar(dtAccess);
+    wxUnusedVar(dtMod);
+    wxUnusedVar(dtCreate);
 #endif // platforms
 
     wxLogSysError(_("Failed to modify file times for '%s'"),
@@ -1988,7 +2243,7 @@ bool wxFileName::GetTimes(wxDateTime *dtAccess,
 
         return true;
     }
-#elif defined(__UNIX_LIKE__) || defined(__WXMAC__) || (defined(__DOS__) && defined(__WATCOMC__))
+#elif defined(__UNIX_LIKE__) || defined(__WXMAC__) || defined(__OS2__) || (defined(__DOS__) && defined(__WATCOMC__))
     wxStructStat stBuf;
     if ( wxStat( GetFullPath().c_str(), &stBuf) == 0 )
     {
@@ -2002,6 +2257,9 @@ bool wxFileName::GetTimes(wxDateTime *dtAccess,
         return true;
     }
 #else // other platform
+    wxUnusedVar(dtAccess);
+    wxUnusedVar(dtMod);
+    wxUnusedVar(dtCreate);
 #endif // platforms
 
     wxLogSysError(_("Failed to retrieve file times for '%s'"),
@@ -2012,6 +2270,87 @@ bool wxFileName::GetTimes(wxDateTime *dtAccess,
 
 #endif // wxUSE_DATETIME
 
+
+// ----------------------------------------------------------------------------
+// file size functions
+// ----------------------------------------------------------------------------
+
+/* static */
+wxULongLong wxFileName::GetSize(const wxString &filename)
+{
+    if (!wxFileExists(filename))
+        return wxInvalidSize;
+
+#if defined(__WXPALMOS__)
+    // TODO
+    return wxInvalidSize;
+#elif defined(__WIN32__)
+    wxFileHandle f(filename, wxFileHandle::Read);
+    if (!f.IsOk())
+        return wxInvalidSize;
+
+    DWORD lpFileSizeHigh;
+    DWORD ret = GetFileSize(f, &lpFileSizeHigh);
+    if (ret == INVALID_FILE_SIZE)
+        return wxInvalidSize;
+
+    // compose the low-order and high-order byte sizes
+    return wxULongLong(ret | (lpFileSizeHigh << sizeof(WORD)*2));
+
+#else           // ! __WIN32__
+
+    wxStructStat st;
+#ifndef wxNEED_WX_UNISTD_H
+    if (wxStat( filename.fn_str() , &st) != 0)
+#else
+    if (wxStat( filename, &st) != 0)
+#endif
+        return wxInvalidSize;
+    return wxULongLong(st.st_size);
+#endif
+}
+
+/* static */
+wxString wxFileName::GetHumanReadableSize(const wxULongLong &bs,
+                                          const wxString &nullsize,
+                                          int precision)
+{
+    static const double KILOBYTESIZE = 1024.0;
+    static const double MEGABYTESIZE = 1024.0*KILOBYTESIZE;
+    static const double GIGABYTESIZE = 1024.0*MEGABYTESIZE;
+    static const double TERABYTESIZE = 1024.0*GIGABYTESIZE;
+
+    if (bs == 0 || bs == wxInvalidSize)
+        return nullsize;
+
+    double bytesize = bs.ToDouble();
+    if (bytesize < KILOBYTESIZE)
+        return wxString::Format(_("%s B"), bs.ToString().c_str());
+    if (bytesize < MEGABYTESIZE)
+        return wxString::Format(_("%.*f kB"), precision, bytesize/KILOBYTESIZE);
+    if (bytesize < GIGABYTESIZE)
+        return wxString::Format(_("%.*f MB"), precision, bytesize/MEGABYTESIZE);
+    if (bytesize < TERABYTESIZE)
+        return wxString::Format(_("%.*f GB"), precision, bytesize/GIGABYTESIZE);
+
+    return wxString::Format(_("%.*f TB"), precision, bytesize/TERABYTESIZE);
+}
+
+wxULongLong wxFileName::GetSize() const
+{
+    return GetSize(GetFullPath());
+}
+
+wxString wxFileName::GetHumanReadableSize(const wxString &failmsg, int precision) const
+{
+    return GetHumanReadableSize(GetSize(), failmsg, precision);
+}
+
+
+// ----------------------------------------------------------------------------
+// Mac-specific functions
+// ----------------------------------------------------------------------------
+
 #ifdef __WXMAC__
 
 const short kMacExtensionMaxLength = 16 ;
@@ -2041,7 +2380,6 @@ public :
   OSType m_creator ;
 }  ;
 
-#include "wx/dynarray.h"
 WX_DECLARE_OBJARRAY(MacDefaultExtensionRecord, MacDefaultExtensionArray) ;
 
 bool gMacDefaultExtensionsInited = false ;