public bool MoveNext()
{
if (_lastEntryFound)
{
return(false);
}
FileSystemEntry entry = default;
lock (_lock)
{
if (_lastEntryFound)
{
return(false);
}
do
{
FindNextEntry();
if (_lastEntryFound)
{
return(false);
}
bool isDirectory = FileSystemEntry.Initialize(ref entry, _entry, _currentPath, _rootDirectory, _originalRootDirectory, new Span <char>(_pathBuffer));
bool isSpecialDirectory = false;
if (isDirectory)
{
// Subdirectory found
if (_entry.Name[0] == '.' && (_entry.Name[1] == 0 || (_entry.Name[1] == '.' && _entry.Name[2] == 0)))
{
// "." or "..", don't process unless the option is set
if (!_options.ReturnSpecialDirectories)
{
continue;
}
isSpecialDirectory = true;
}
}
if (!isSpecialDirectory && _options.AttributesToSkip != 0)
{
if ((_options.AttributesToSkip & ~(FileAttributes.Directory | FileAttributes.Hidden | FileAttributes.ReparsePoint)) == 0)
{
// These three we don't have to hit the disk again to evaluate
if (((_options.AttributesToSkip & FileAttributes.Directory) != 0 && isDirectory) ||
((_options.AttributesToSkip & FileAttributes.Hidden) != 0 && _entry.Name[0] == '.') ||
((_options.AttributesToSkip & FileAttributes.ReparsePoint) != 0 && _entry.InodeType == Interop.Sys.NodeType.DT_LNK))
{
continue;
}
}
else if (entry.Attributes != (FileAttributes)(-1) && (_options.AttributesToSkip & entry.Attributes) != 0)
{
// Hitting Attributes on the FileSystemEntry will cause a stat call
continue;
}
}
if (isDirectory && !isSpecialDirectory)
{
if (_options.RecurseSubdirectories && ShouldRecurseIntoEntry(ref entry))
{
// Recursion is on and the directory was accepted, Queue it
if (_pending == null)
{
_pending = new Queue <string>();
}
_pending.Enqueue(PathHelpers.CombineNoChecks(_currentPath, entry.FileName));
}
}
if (ShouldIncludeEntry(ref entry))
{
_current = TransformEntry(ref entry);
return(true);
}
} while (true);
}
}
public bool MoveNext()
{
if (_lastEntryFound)
{
return(false);
}
FileSystemEntry entry = default;
lock (_lock)
{
if (_lastEntryFound)
{
return(false);
// If HAVE_READDIR_R is defined for the platform FindNextEntry depends on _entryBuffer being fixed since
// _entry will point to a string in the middle of the array. If the array is not fixed GC can move it after
// the native call and _entry will point to a bogus file name.
fixed(byte *entryBufferPtr = _entryBuffer)
{
do
{
FindNextEntry(entryBufferPtr, _entryBuffer == null ? 0 : _entryBuffer.Length);
if (_lastEntryFound)
{
return(false);
}
FileAttributes attributes = FileSystemEntry.Initialize(
ref entry, _entry, _currentPath, _rootDirectory, _originalRootDirectory, new Span <char>(_pathBuffer));
bool isDirectory = (attributes & FileAttributes.Directory) != 0;
bool isSpecialDirectory = false;
if (isDirectory)
{
// Subdirectory found
if (_entry.Name[0] == '.' && (_entry.Name[1] == 0 || (_entry.Name[1] == '.' && _entry.Name[2] == 0)))
{
// "." or "..", don't process unless the option is set
if (!_options.ReturnSpecialDirectories)
{
continue;
}
isSpecialDirectory = true;
}
}
if (!isSpecialDirectory && _options.AttributesToSkip != 0)
{
if ((_options.AttributesToSkip & FileAttributes.ReadOnly) != 0)
{
// ReadOnly is the only attribute that requires hitting entry.Attributes (which hits the disk)
attributes = entry.Attributes;
}
if ((_options.AttributesToSkip & attributes) != 0)
{
continue;
}
}
if (isDirectory && !isSpecialDirectory)
{
if (_options.RecurseSubdirectories && ShouldRecurseIntoEntry(ref entry))
{
// Recursion is on and the directory was accepted, Queue it
if (_pending == null)
{
_pending = new Queue <string>();
}
_pending.Enqueue(Path.Join(_currentPath, entry.FileName));
}
}
if (ShouldIncludeEntry(ref entry))
{
_current = TransformEntry(ref entry);
return(true);
}
} while (true);
}
}
}
public bool MoveNext()
{
if (_lastEntryFound)
{
return(false);
}
FileSystemEntry entry = default;
lock (_lock)
{
if (_lastEntryFound)
{
return(false);
}
do
{
FindNextEntry();
if (_lastEntryFound)
{
return(false);
}
FileAttributes attributes = FileSystemEntry.Initialize(ref entry, _entry, _currentPath, _rootDirectory, _originalRootDirectory, new Span <char>(_pathBuffer));
bool isDirectory = (attributes & FileAttributes.Directory) != 0;
bool isSpecialDirectory = false;
if (isDirectory)
{
// Subdirectory found
if (_entry.Name[0] == '.' && (_entry.Name[1] == 0 || (_entry.Name[1] == '.' && _entry.Name[2] == 0)))
{
// "." or "..", don't process unless the option is set
if (!_options.ReturnSpecialDirectories)
{
continue;
}
isSpecialDirectory = true;
}
}
if (!isSpecialDirectory && _options.AttributesToSkip != 0)
{
if ((_options.AttributesToSkip & FileAttributes.ReadOnly) != 0)
{
// ReadOnly is the only attribute that requires hitting entry.Attributes (which hits the disk)
attributes = entry.Attributes;
}
if (attributes != (FileAttributes)(-1) && (_options.AttributesToSkip & attributes) != 0)
{
continue;
}
}
if (isDirectory && !isSpecialDirectory)
{
if (_options.RecurseSubdirectories && ShouldRecurseIntoEntry(ref entry))
{
// Recursion is on and the directory was accepted, Queue it
if (_pending == null)
{
_pending = new Queue <string>();
}
_pending.Enqueue(PathHelpers.CombineNoChecks(_currentPath, entry.FileName));
}
}
if (ShouldIncludeEntry(ref entry))
{
_current = TransformEntry(ref entry);
return(true);
}
} while (true);
}
}
