public unsafe bool Match(ref RawFindData findData)
{
if (_filter == null)
{
return(true);
}
// RtlIsNameInExpression is the native API DosMatcher is replicating.
return(DosMatcher.MatchPattern(_filter, findData.FileName, _ignoreCase));
}
public FindResult(ref RawFindData findData)
{
Directory = findData.Directory;
FileName = findData.FileName.CreateString();
Attributes = findData.FileAttributes;
CreationUtc = findData.CreationTimeUtc;
LastAccessUtc = findData.LastAccessTimeUtc;
LastWriteUtc = findData.LastWriteTimeUtc;
Length = (uint)findData.FileSize;
}
public unsafe bool Match(ref RawFindData record)
{
foreach (var filter in _filters)
{
if (!filter.Match(ref record))
{
return(false);
}
}
return(true);
}
public unsafe string TransformResult(ref RawFindData findData)
{
int totalLength = findData.FileName.Length + findData.Directory.Length + 1;
string fullPath = new string('\0', totalLength);
fixed(char *f = fullPath)
{
Span <char> pathSpan = new Span <char>(f, totalLength);
ReadOnlySpan <char> directorySpan = findData.Directory.AsSpan();
directorySpan.CopyTo(pathSpan);
pathSpan[directorySpan.Length] = Paths.DirectorySeparator;
findData.FileName.CopyTo(pathSpan.Slice(directorySpan.Length + 1));
}
return(fullPath);
}
public bool MoveNext()
{
if (_lastEntryFound)
{
return(false);
}
RawFindData data = default;
do
{
FindNextFile();
if (!_lastEntryFound && _info != null)
{
data = new RawFindData(_info, _path);
if (_pending != null && (data.FileAttributes & FileAttributes.Directory) != 0 &&
FindFilters.NormalDirectory.NotSpecialDirectory(ref data))
{
// Stash directory to recurse into
string fileName = data.FileName.CreateString();
string subDirectory = string.Concat(_path, "\\", fileName);
_pending.Enqueue(ValueTuple.Create(
CreateDirectoryHandle(fileName, subDirectory),
subDirectory));
}
}
} while (!_lastEntryFound && !_findOperation._filter.Match(ref data));
if (!_lastEntryFound)
{
_current = _findOperation._transform.TransformResult(ref data);
return(true);
}
return(false);
}
public unsafe FindResult TransformResult(ref RawFindData findData) => new FindResult(ref findData);
public bool Match(ref RawFindData findData) => true;
public static unsafe bool NotSpecialDirectory(ref RawFindData findData)
{
return(findData.FileName.Length > 2 ||
findData.FileName[0] != '.' ||
(findData.FileName.Length == 2 && findData.FileName[1] != '.'));
}
public unsafe bool Match(ref RawFindData findData) => NotSpecialDirectory(ref findData);
public unsafe string TransformResult(ref RawFindData findData)
{
return(findData.FileName.CreateString());
}