#include <acess.h>
+/**
+ * \brief Thread list datatype for VFS_Select
+ */
+typedef struct sVFS_SelectList tVFS_SelectList;
+
/**
* \name tVFS_Node Flags
* \brief Flag values for tVFS_Node.Flags
*/
/**
- * \name Access controll
+ * \name Access control
* \{
*/
tUID UID; //!< ID of Owning User
* \}
*/
+ /**
+ * \name VFS_Select() fields
+ * \{
+ */
+ int DataAvaliable;
+ tVFS_SelectList *ReadThreads; //!< Threads waiting to read
+ int BufferFull;
+ tVFS_SelectList *WriteThreads; //!< Threads waiting to write
+ int ErrorOccurred;
+ tVFS_SelectList *ErrorThreads; //!< Threads waiting for an error
+ /**
+ * \}
+ */
+
/**
* \name Common Functions
* \brief Functions that are used no matter the value of .Flags
typedef struct sVFS_Driver
{
//! \brief Unique Identifier for this filesystem type
- char *Name;
+ const char *Name;
//! \brief Flags applying to this driver
Uint Flags;
* \param Name Name of filesystem driver to find
*/
extern tVFS_Driver *VFS_GetFSByName(const char *Name);
+
+
+/**
+ * \brief Prepare a node for use
+ */
+extern void VFS_InitNode(tVFS_Node *Node);
+
+/**
+ * \brief Clean up a node, ready for deletion
+ * \note This should ALWAYS be called before a node is freed, as it
+ * cleans up VFS internal structures.
+ */
+extern void VFS_CleanupNode(tVFS_Node *Node);
+
/**
* \fn tVFS_ACL *VFS_UnixToAcessACL(Uint Mode, Uint Owner, Uint Group)
* \brief Transforms Unix Permssions into Acess ACLs
*/
extern tVFS_ACL *VFS_UnixToAcessACL(Uint Mode, Uint Owner, Uint Group);
+/**
+ */
+enum eVFS_SelectTypes
+{
+ VFS_SELECT_READ,
+ VFS_SELECT_WRITE,
+ VFS_SELECT_ERROR
+};
+
+/**
+ * \brief Wait for an event on a node
+ * \param Node Node to wait on
+ * \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)
+ */
+extern int VFS_SelectNode(tVFS_Node *Node, enum eVFS_SelectTypes Type, tTime *Timeout, const char *Name);
+
+/**
+ * \brief Change the full flag on a node
+ */
+extern int VFS_MarkFull(tVFS_Node *Node, BOOL IsBufferFull);
+extern int VFS_MarkAvaliable(tVFS_Node *Node, BOOL IsDataAvaliable);
+extern int VFS_MarkError(tVFS_Node *Node, BOOL IsErrorState);
+
// --- Node Cache --
/**
* \name Node Cache