X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=KernelLand%2FKernel%2Finclude%2Fvfs_ext.h;h=d18009d4db9218f669fba655f8ec4711d7c8a5da;hb=c34752b7ccc945a70a2d9b1e505aa4a4de43163b;hp=1bc3e18a93d35a408a9be4c0f06b65deb997eccb;hpb=7ba570fe3cc5418f42decf5b72ac2295cce9e60f;p=tpg%2Facess2.git

diff --git a/KernelLand/Kernel/include/vfs_ext.h b/KernelLand/Kernel/include/vfs_ext.h
index 1bc3e18a..d18009d4 100644
--- a/KernelLand/Kernel/include/vfs_ext.h
+++ b/KernelLand/Kernel/include/vfs_ext.h
@@ -13,6 +13,7 @@ typedef Uint64	tInode;
 typedef Uint32	tMount;
 
 // === CONSTANTS ===
+//! Maximum length of a filename (including NULL byte)
 #define FILENAME_MAX	256
 //! Maximum size of a Memory Path generated by VFS_GetMemPath
 #define	VFS_MEMPATH_SIZE	(3 + (BITS/4)*2)
@@ -21,17 +22,19 @@ typedef Uint32	tMount;
  * \{
  */
 //! Open for execution
-#define VFS_OPENFLAG_EXEC	0x01
+#define VFS_OPENFLAG_EXEC	0x001
 //! Open for reading
-#define VFS_OPENFLAG_READ	0x02
+#define VFS_OPENFLAG_READ	0x002
 //! Open for writing
-#define VFS_OPENFLAG_WRITE	0x04
+#define VFS_OPENFLAG_WRITE	0x004
 //! Do not resolve the final symbolic link
-#define	VFS_OPENFLAG_NOLINK	0x40
+#define	VFS_OPENFLAG_NOLINK	0x040
 //! Create the file if it doesn't exist
-#define VFS_OPENFLAG_CREATE	0x80
+#define VFS_OPENFLAG_CREATE	0x080
+//! Open file as non-blocking
+#define VFS_OPENFLAG_NONBLOCK	0x100
 //! Treat as a directory
-#define VFS_OPENFLAG_DIRECTORY	0x100
+#define VFS_OPENFLAG_DIRECTORY	0x1000
 //! Open as a user
 #define	VFS_OPENFLAG_USER	0x8000
 /**
@@ -115,10 +118,12 @@ enum eVFS_SeekDirs
  */
 typedef struct sVFS_ACL
 {
+	//! ACL entity selection
 	struct {
 		unsigned Group:	1;	//!< Group (as opposed to user) flag
 		unsigned ID:	31;	//!< ID of Group/User (-1 for nobody/world)
 	} Ent;
+	//! ACL Permissions mask
 	struct {
 		unsigned Inv:	1;	//!< Invert Permissions
 		unsigned Perms:	31;	//!< Permission Flags
@@ -217,12 +222,29 @@ extern int	VFS_OpenChild(int FD, const char *Name, Uint Mode);
  */
 extern int	VFS_OpenInode(Uint32 Mount, Uint64 Inode, int Mode);
 
+/**
+ * \brief Open a file reusing an old FD
+ */
+extern int	VFS_Reopen(int FD, const char *Path, int Flags);
+
 /**
  * \brief Close a currently open file
  * \param FD	Handle returned by ::VFS_Open
  */
 extern void	VFS_Close(int FD);
 
+/**
+ * \brief Copy one FD to another
+ * \param SrcFD	Source file descriptor
+ * \param DstFD	Destination file descriptor (-1 means allocate new)
+ */
+extern int	VFS_DuplicateFD(int SrcFD, int DstFD);
+
+/**
+ * \brief Update the flags on a FD
+ */
+extern int	VFS_SetFDFlags(int FD, int Mask, int Value);
+
 /**
  * \brief Get file information from an open file
  * \param FD	File handle returned by ::VFS_Open