[BeFS] Implement StatFS.

Aaru.Filesystems/BFS/Super.cs

@@ -0,0 +1,77 @@
+// /***************************************************************************
+// Aaru Data Preservation Suite
+// ----------------------------------------------------------------------------
+//
+// Filename       : Super.cs
+// Author(s)      : Natalia Portillo <claunia@claunia.com>
+//
+// Component      : BeOS filesystem 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;
+using Aaru.Logging;
+
+namespace Aaru.Filesystems;
+
+// Information from Practical Filesystem Design, ISBN 1-55860-497-9
+/// <inheritdoc />
+public sealed partial class BeFS
+{
+    /// <summary>Returns filesystem statistics</summary>
+    /// <remarks>
+    ///     Provides information about the BeFS volume including total blocks, free blocks,
+    ///     block size, and other filesystem metadata from the cached superblock.
+    /// </remarks>
+    /// <param name="stat">Output filesystem information</param>
+    /// <returns>Error code indicating success or failure</returns>
+    /// <inheritdoc />
+    public ErrorNumber StatFs(out FileSystemInfo stat)
+    {
+        stat = null;
+
+        if(!_mounted) return ErrorNumber.AccessDenied;
+
+        AaruLogging.Debug(MODULE_NAME, "StatFs: returning filesystem statistics");
+
+        // Calculate free blocks
+        long freeBlocks = _superblock.num_blocks - _superblock.used_blocks;
+
+        // Create filesystem info from superblock data
+        stat = new FileSystemInfo
+        {
+            Blocks         = (ulong)_superblock.num_blocks,
+            FreeBlocks     = (ulong)freeBlocks,
+            FilenameLength = 255,
+            Type           = FS_TYPE,
+            Files          = 0, // Not tracked in BeFS superblock
+            FreeFiles      = 0  // Not tracked in BeFS superblock
+        };
+
+        AaruLogging.Debug(MODULE_NAME,
+                          "StatFs complete: totalBlocks={0}, freeBlocks={1}, blockSize={2}",
+                          stat.Blocks,
+                          stat.FreeBlocks,
+                          _superblock.block_size);
+
+        return ErrorNumber.NoError;
+    }
+}

Aaru.Filesystems/BFS/Unimplemented.cs

@@ -30,7 +30,6 @@ using System;
 using System.Diagnostics.CodeAnalysis;
 using Aaru.CommonTypes.Enums;
 using Aaru.CommonTypes.Interfaces;
-using Aaru.CommonTypes.Structs;
 
 namespace Aaru.Filesystems;
 
@@ -44,10 +43,6 @@ public sealed partial class BeFS
     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();