fixing length param, see #10846

[wxWidgets.git] / src / msw / volume.cpp

diff --git a/src/msw/volume.cpp b/src/msw/volume.cpp
index f328405a26bb0a994c36bdc512796f22c94cbecf..dbc6c61e55cc24a68ae84a15096e6c98032b0901 100644 (file)
--- a/src/msw/volume.cpp
+++ b/src/msw/volume.cpp
@@ -17,10 +17,6 @@
 // headers
 // ----------------------------------------------------------------------------
 
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-    #pragma implementation "fsvolume.h"
-#endif
-
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
@@ -29,20 +25,21 @@
 
 #if wxUSE_FSVOLUME
 
+#include "wx/volume.h"
+
 #ifndef WX_PRECOMP
     #if wxUSE_GUI
         #include "wx/icon.h"
     #endif
     #include "wx/intl.h"
+    #include "wx/hashmap.h"
+    #include "wx/filefn.h"
 #endif // WX_PRECOMP
 
 #include "wx/dir.h"
-#include "wx/hashmap.h"
 #include "wx/dynlib.h"
 #include "wx/arrimpl.cpp"
 
-#include "wx/volume.h"
-
 #include <shellapi.h>
 #include <shlobj.h>
 #include "wx/msw/missing.h"
@@ -53,7 +50,9 @@
 // Dynamic library function defs.
 //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 
+#if wxUSE_DYNLIB_CLASS
 static wxDynamicLibrary s_mprLib;
+#endif
 
 typedef DWORD (WINAPI* WNetOpenEnumPtr)(DWORD, DWORD, DWORD, LPNETRESOURCE, LPHANDLE);
 typedef DWORD (WINAPI* WNetEnumResourcePtr)(HANDLE, LPDWORD, LPVOID, LPDWORD);
@@ -147,17 +146,19 @@ static unsigned GetBasicFlags(const wxChar* filename)
     }
 
     //-----------------------------------------------------------------------
-    // The following will most likely will not modify anything not set above,
+    // The following most likely will not modify anything not set above,
     // and will not work at all for network shares or empty CD ROM drives.
     // But it is a good check if the Win API ever gets better about reporting
     // this information.
     //-----------------------------------------------------------------------
     SHFILEINFO fi;
-    long rc;
-    rc = SHGetFileInfo(filename, 0, &fi, sizeof(fi), SHGFI_ATTRIBUTES );
+    long rc = SHGetFileInfo(filename, 0, &fi, sizeof(fi), SHGFI_ATTRIBUTES);
     if (!rc)
     {
-        wxLogError(_("Cannot read typename from '%s'!"), filename);
+        // this error is not fatal, so don't show a message to the user about
+        // it, otherwise it would appear every time a generic directory picker
+        // dialog is used and there is a connected network drive
+        wxLogLastError(_T("SHGetFileInfo"));
     }
     else
     {
@@ -264,7 +265,18 @@ static void BuildListFromNN(wxArrayString& list, NETRESOURCE* pResSrc,
                 {
                     wxString filename(pRes->lpRemoteName);
 
-                    if (filename.Len())
+                    // if the drive is unavailable, FilteredAdd() can hang for
+                    // a long time and, moreover, its failure appears to be not
+                    // cached so this will happen every time we use it, so try
+                    // a much quicker wxDirExists() test (which still hangs but
+                    // for much shorter time) for locally mapped drives first
+                    // to try to avoid this
+                    if ( pRes->lpLocalName &&
+                            *pRes->lpLocalName &&
+                                !wxDirExists(pRes->lpLocalName) )
+                        continue;
+
+                    if (!filename.empty())
                     {
                         if (filename.Last() != '\\')
                             filename.Append('\\');
@@ -272,7 +284,7 @@ static void BuildListFromNN(wxArrayString& list, NETRESOURCE* pResSrc,
                         // The filter function will not know mounted from unmounted, and neither do we unless
                         // we are iterating using RESOURCE_CONNECTED, in which case they all are mounted.
                         // Volumes on disconnected servers, however, will correctly show as unmounted.
-                        FilteredAdd(list, filename, flagsSet, flagsUnset&~wxFS_VOL_MOUNTED);
+                        FilteredAdd(list, filename.wx_str(), flagsSet, flagsUnset&~wxFS_VOL_MOUNTED);
                         if (scope == RESOURCE_GLOBALNET)
                             s_fileInfo[filename].m_flags &= ~wxFS_VOL_MOUNTED;
                     }
@@ -336,8 +348,8 @@ static bool BuildRemoteList(wxArrayString& list, NETRESOURCE* pResSrc,
         mounted.Sort(CompareFcn);
 
         // apply list from bottom to top to preserve indexes if removing items.
-        size_t iList = list.GetCount()-1;
-        for (size_t iMounted = mounted.GetCount()-1; iMounted >= 0 && iList >= 0; iMounted--)
+        ssize_t iList = list.GetCount()-1;
+        for (ssize_t iMounted = mounted.GetCount()-1; iMounted >= 0 && iList >= 0; iMounted--)
         {
             int compare;
             wxString all(list[iList]);
@@ -382,6 +394,7 @@ wxArrayString wxFSVolumeBase::GetVolumes(int flagsSet, int flagsUnset)
 {
     ::InterlockedExchange(&s_cancelSearch, FALSE);     // reset
 
+#if wxUSE_DYNLIB_CLASS
     if (!s_mprLib.IsLoaded() && s_mprLib.Load(_T("mpr.dll")))
     {
 #ifdef UNICODE
@@ -393,6 +406,7 @@ wxArrayString wxFSVolumeBase::GetVolumes(int flagsSet, int flagsUnset)
 #endif
         s_pWNetCloseEnum = (WNetCloseEnumPtr)s_mprLib.GetSymbol(_T("WNetCloseEnum"));
     }
+#endif
 
     wxArrayString list;
 
@@ -484,7 +498,7 @@ bool wxFSVolumeBase::Create(const wxString& name)
 
     // Display name.
     SHFILEINFO fi;
-    long rc = SHGetFileInfo(m_volName, 0, &fi, sizeof(fi), SHGFI_DISPLAYNAME);
+    long rc = SHGetFileInfo(m_volName.wx_str(), 0, &fi, sizeof(fi), SHGFI_DISPLAYNAME);
     if (!rc)
     {
         wxLogError(_("Cannot read typename from '%s'!"), m_volName.c_str());
@@ -594,7 +608,7 @@ wxIcon wxFSVolume::GetIcon(wxFSIconType type) const
         }
 
         SHFILEINFO fi;
-        long rc = SHGetFileInfo(m_volName, 0, &fi, sizeof(fi), flags);
+        long rc = SHGetFileInfo(m_volName.wx_str(), 0, &fi, sizeof(fi), flags);
         m_icons[type].SetHICON((WXHICON)fi.hIcon);
         if (!rc || !fi.hIcon)
             wxLogError(_("Cannot load icon from '%s'."), m_volName.c_str());
@@ -606,4 +620,3 @@ wxIcon wxFSVolume::GetIcon(wxFSIconType type) const
 #endif // wxUSE_GUI
 
 #endif // wxUSE_FSVOLUME
-