Kernel - Fixing bugs exposed with `qemu -nographic`

[tpg/acess2.git] / KernelLand / Kernel / include / vfs.h

diff --git a/KernelLand/Kernel/include/vfs.h b/KernelLand/Kernel/include/vfs.h
index 91dcd69..6afe309 100644 (file)
--- a/KernelLand/Kernel/include/vfs.h
+++ b/KernelLand/Kernel/include/vfs.h
@@ -77,7 +77,15 @@ typedef struct sVFS_NodeType tVFS_NodeType;
  * is unmapped. Nice for read-only files and memory-only files (or 
  * pseudo-readonly filesystems)
  */
-#define VFS_FFLAG_NOWRITEBACK
+#define VFS_FFLAG_NOWRITEBACK  0x1000
+
+/**
+ * \brief "Dirty Metadata" Flag
+ *
+ * Indicates that the node's metadata has been altered since the flag was last
+ * cleared. Tells the driver that it should update the inode at the next flush.
+ */
+#define VFS_FFLAG_DIRTY        0x8000
 /**
  * \}
  */
@@ -339,6 +347,15 @@ typedef struct sVFS_Driver
         */
        Uint    Flags;
        
+       /**
+        * \brief Detect if a volume is accessible using this driver
+        * \return Boolean success (with higher numbers being higher priority)
+        *
+        * E.g. FAT would return 1 as it's the lowest common denominator while ext2 might return 2,
+        * because it can be embedded in a FAT volume (and is a more fully featured filesystem).
+        */
+        int    (*Detect)(int FD);
+
        /**
         * \brief Callback to mount a device
         */