// Get the next item in a directory.
private static String NextDirItem(DirScanInfo info)
{
// Bail out if the previous directory scan is finished.
if (info.contents == null)
{
return("");
}
// Search for the next entry that matches the attributes.
FileAttribute searchAttrs = info.searchAttrs;
FileAttribute attrs;
String result;
while (info.posn < info.contents.Length)
{
attrs = (FileAttribute)
(info.contents[info.posn].Attributes);
attrs = attrs & (FileAttribute)0x3F;
if ((searchAttrs & FileAttribute.Archive) != 0)
{
// Skip entries that don't have the archive bit set.
if ((attrs & FileAttribute.Archive) == 0)
{
++(info.posn);
continue;
}
}
if ((attrs & ~FileAttribute.Archive) ==
FileAttribute.Normal)
{
// Normal entries are always included.
result = info.contents[info.posn].Name;
++(info.posn);
return(result);
}
if ((searchAttrs & ~FileAttribute.Archive) ==
FileAttribute.Normal)
{
// We don't want anything but normal entries.
++(info.posn);
continue;
}
if ((attrs & searchAttrs & ~FileAttribute.Archive) != 0)
{
// This entry matches the attribute conditions.
result = info.contents[info.posn].Name;
++(info.posn);
return(result);
}
}
// The directory scan has been completed. Null out
// the "contents" list to allow it to be GC'ed.
info.contents = null;
info.posn = 0;
return("");
}
// Get the directory scan information block for an assembly.
private static DirScanInfo GetScanInfo(Assembly assembly)
{
lock (typeof(FileSystem))
{
DirScanInfo info = dirScanList;
while (info != null)
{
if (info.assembly == assembly)
{
return(info);
}
info = info.next;
}
info = new DirScanInfo(assembly, dirScanList);
dirScanList = info;
return(info);
}
}
// Get the next item in a directory.
private static String NextDirItem(DirScanInfo info)
{
// Bail out if the previous directory scan is finished.
if(info.contents == null)
{
return "";
}
// Search for the next entry that matches the attributes.
FileAttribute searchAttrs = info.searchAttrs;
FileAttribute attrs;
String result;
while(info.posn < info.contents.Length)
{
attrs = (FileAttribute)
(info.contents[info.posn].Attributes);
attrs = attrs & (FileAttribute)0x3F;
if((searchAttrs & FileAttribute.Archive) != 0)
{
// Skip entries that don't have the archive bit set.
if((attrs & FileAttribute.Archive) == 0)
{
++(info.posn);
continue;
}
}
if((attrs & ~FileAttribute.Archive) ==
FileAttribute.Normal)
{
// Normal entries are always included.
result = info.contents[info.posn].Name;
++(info.posn);
return result;
}
if((searchAttrs & ~FileAttribute.Archive) ==
FileAttribute.Normal)
{
// We don't want anything but normal entries.
++(info.posn);
continue;
}
if((attrs & searchAttrs & ~FileAttribute.Archive) != 0)
{
// This entry matches the attribute conditions.
result = info.contents[info.posn].Name;
++(info.posn);
return result;
}
}
// The directory scan has been completed. Null out
// the "contents" list to allow it to be GC'ed.
info.contents = null;
info.posn = 0;
return "";
}
// Get the directory scan information block for an assembly.
private static DirScanInfo GetScanInfo(Assembly assembly)
{
lock(typeof(FileSystem))
{
DirScanInfo info = dirScanList;
while(info != null)
{
if(info.assembly == assembly)
{
return info;
}
info = info.next;
}
info = new DirScanInfo(assembly, dirScanList);
dirScanList = info;
return info;
}
}
public DirScanInfo(Assembly assembly, DirScanInfo next)
{
this.assembly = assembly;
this.next = next;
}
public DirScanInfo(Assembly assembly, DirScanInfo next)
{
this.assembly = assembly;
this.next = next;
}
