[pfs] Implement statfs.

Aaru.Filesystems/PFS/Super.cs

@@ -0,0 +1,56 @@
+// /***************************************************************************
+// Aaru Data Preservation Suite
+// ----------------------------------------------------------------------------
+//
+// Filename       : Super.cs
+// Author(s)      : Natalia Portillo <claunia@claunia.com>
+//
+// Component      : Professional File System plugin.
+//
+// --[ License ] --------------------------------------------------------------
+//
+//     This library is free software; you can redistribute it and/or modify
+//     it under the terms of the GNU Lesser General Public License as
+//     published by the Free Software Foundation; either version 2.1 of the
+//     License, or (at your option) any later version.
+//
+//     This library is distributed in the hope that it will be useful, but
+//     WITHOUT ANY WARRANTY; without even the implied warranty of
+//     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+//     Lesser General Public License for more details.
+//
+//     You should have received a copy of the GNU Lesser General Public
+//     License along with this library; if not, see <http://www.gnu.org/licenses/>.
+//
+// ----------------------------------------------------------------------------
+// Copyright © 2011-2026 Natalia Portillo
+// ****************************************************************************/
+
+using Aaru.CommonTypes.Enums;
+using Aaru.CommonTypes.Structs;
+
+namespace Aaru.Filesystems;
+
+/// <inheritdoc />
+public sealed partial class PFS
+{
+    /// <inheritdoc />
+    public ErrorNumber StatFs(out FileSystemInfo stat)
+    {
+        stat = null;
+
+        if(!_mounted) return ErrorNumber.AccessDenied;
+
+        stat = new FileSystemInfo
+        {
+            Blocks         = _rootBlock.diskSize,
+            FilenameLength = (ushort)(_hasExtension ? _filenameSize : DNSIZE - 2), // Default 30 chars
+            FreeBlocks     = _rootBlock.blocksfree,
+            FreeFiles      = 0, // PFS doesn't have a fixed inode count
+            PluginId       = Id,
+            Type           = FS_TYPE
+        };
+
+        return ErrorNumber.NoError;
+    }
+}

Aaru.Filesystems/PFS/Unimplemented.cs

@@ -29,7 +29,6 @@
 using System;
 using Aaru.CommonTypes.Enums;
 using Aaru.CommonTypes.Interfaces;
-using Aaru.CommonTypes.Structs;
 
 namespace Aaru.Filesystems;
 
@@ -40,10 +39,6 @@ public sealed partial class PFS
     public ErrorNumber Unmount() => throw new NotImplementedException();
 
 
-    /// <inheritdoc />
-    public ErrorNumber StatFs(out FileSystemInfo stat) => throw new NotImplementedException();
-
-
     /// <inheritdoc />
     public ErrorNumber ReadLink(string path, out string dest) => throw new NotImplementedException();