* \}
*/
+/**
+ * \name tVFS_NodeType.Type flags
+ * \brief Flags for node types
+ * \{
+ */
+//\! Calls to VFS_Write should not generate calls to .Trunctate
+//\!
+//\! If this flag is set, writing over the end of the file will not call .Truncate automatically
+#define VFS_NODETYPEFLAG_NOAUTOEXPAND 0x001
+//\! Node type describes a stream (offset ignored, seeking disallowed)
+#define VFS_NODETYPEFLAG_STREAM 0x002
+/**
+ * \}
+ */
+
/**
* \brief Functions for a specific node type
*/
*/
const char *TypeName;
+ /**
+ * \brief Flags describing operational quirks
+ */
+ unsigned int Flags;
+
/**
* \name Common Functions
* \brief Functions that are used no matter the value of .Flags
* \return Boolean Failure
* \note If NULL, the VFS implements it using .Read
*/
- int (*MMap)(struct sVFS_Node *Node, off_t Offset, int Length, void *Dest);
+ int (*MMap)(struct sVFS_Node *Node, off_t Offset, size_t Length, void *Dest);
+
+ /**
+ * \brief Resize a file
+ * \param Node Pointer to this node
+ * \param NewSize New file size
+ * \return Actual new file size
+ * \note If NULL, \a Write may be called with Offset + Length > Size
+ *
+ * Called to increase/decrease the size of a file. If the
+ */
+ off_t (*Truncate)(struct sVFS_Node *Node, off_t NewSize);
/**
* \}
* \param Type Type of wait
* \param Timeout Time to wait (NULL for infinite wait)
* \param Name Name to show in debug output
- * \return Number of nodes that actioned (0 or 1)
+ * \return Bitset of Type flags that applied
*/
extern int VFS_SelectNode(tVFS_Node *Node, int Type, tTime *Timeout, const char *Name);