static internal IEnumerable <FileSystemInfo> EnumerateFileSystemInfos(string full, string searchPattern, SearchOption searchOption)
{
string path_with_pattern = Path.Combine(full, searchPattern);
IntPtr handle;
MonoIOError error;
FileAttributes rattr;
bool subdirs = searchOption == SearchOption.AllDirectories;
Path.Validate(full);
string s = MonoIO.FindFirst(full, path_with_pattern, out rattr, out error, out handle);
if (s == null)
{
yield break;
}
if (error != 0)
{
throw MonoIO.GetException(Path.GetDirectoryName(path_with_pattern), (MonoIOError)error);
}
try {
if (((rattr & FileAttributes.ReparsePoint) == 0))
{
if ((rattr & FileAttributes.Directory) != 0)
{
yield return(new DirectoryInfo(s));
}
else
{
yield return(new FileInfo(s));
}
}
while ((s = MonoIO.FindNext(handle, out rattr, out error)) != null)
{
if ((rattr & FileAttributes.ReparsePoint) != 0)
{
continue;
}
if ((rattr & FileAttributes.Directory) != 0)
{
yield return(new DirectoryInfo(s));
}
else
{
yield return(new FileInfo(s));
}
if (((rattr & FileAttributes.Directory) != 0) && subdirs)
{
foreach (FileSystemInfo child in EnumerateFileSystemInfos(s, searchPattern, searchOption))
{
yield return(child);
}
}
}
} finally {
MonoIO.FindClose(handle);
}
}
internal static IEnumerable <string> EnumerateKind(string path, string searchPattern, SearchOption searchOption, FileAttributes kind)
{
if (searchPattern.Length == 0)
{
yield break;
}
bool stop;
string path_with_pattern = ValidateDirectoryListing(path, searchPattern, out stop);
if (stop)
{
yield return(path_with_pattern);
yield break;
}
IntPtr handle;
MonoIOError error;
FileAttributes rattr;
string s = MonoIO.FindFirst(path, path_with_pattern, out rattr, out error, out handle);
try {
while (s != null)
{
// Convert any file specific flag to FileAttributes.Normal which is used as include files flag
if (((rattr & FileAttributes.Directory) == 0) && rattr != 0)
{
rattr |= FileAttributes.Normal;
}
if ((rattr & kind) != 0)
{
yield return(s);
}
s = MonoIO.FindNext(handle, out rattr, out error);
}
if (error != 0)
{
throw MonoIO.GetException(Path.GetDirectoryName(Path.Combine(path, searchPattern)), (MonoIOError)error);
}
} finally {
if (handle != IntPtr.Zero)
{
MonoIO.FindClose(handle);
}
}
if (searchOption == SearchOption.AllDirectories)
{
s = MonoIO.FindFirst(path, Path.Combine(path, "*"), out rattr, out error, out handle);
try {
while (s != null)
{
if ((rattr & FileAttributes.Directory) != 0 && (rattr & FileAttributes.ReparsePoint) == 0)
{
foreach (string child in EnumerateKind(s, searchPattern, searchOption, kind))
{
yield return(child);
}
}
s = MonoIO.FindNext(handle, out rattr, out error);
}
if (error != 0)
{
throw MonoIO.GetException(path, (MonoIOError)error);
}
} finally {
if (handle != IntPtr.Zero)
{
MonoIO.FindClose(handle);
}
}
}
}
internal static IEnumerable <string> EnumerateKind(string path, string searchPattern, SearchOption searchOption, FileAttributes kind)
{
if (searchPattern.Length == 0)
{
yield break;
}
bool stop;
string path_with_pattern = ValidateDirectoryListing(path, searchPattern, out stop);
if (stop)
{
yield return(path_with_pattern);
yield break;
}
IntPtr handle;
MonoIOError error;
FileAttributes rattr;
bool subdirs = searchOption == SearchOption.AllDirectories;
string s = MonoIO.FindFirst(path, path_with_pattern, out rattr, out error, out handle);
if (s == null)
{
yield break;
}
if (error != 0)
{
throw MonoIO.GetException(Path.GetDirectoryName(Path.Combine(path, searchPattern)), (MonoIOError)error);
}
try
{
if (((rattr & FileAttributes.ReparsePoint) == 0) && ((rattr & kind) != 0))
{
yield return(s);
}
while ((s = MonoIO.FindNext(handle, out rattr, out error)) != null)
{
if ((rattr & FileAttributes.ReparsePoint) != 0)
{
continue;
}
if ((rattr & kind) != 0)
{
yield return(s);
}
if (((rattr & FileAttributes.Directory) != 0) && subdirs)
{
foreach (string child in EnumerateKind(s, searchPattern, searchOption, kind))
{
yield return(child);
}
}
}
}
finally
{
MonoIO.FindClose(handle);
}
}
