#ifndef _VFS_EXT_H
#define _VFS_EXT_H
+typedef Uint64 tInode;
+typedef Uint32 tMount;
+
// === CONSTANTS ===
//! Maximum size of a Memory Path generated by VFS_GetMemPath
#define VFS_MEMPATH_SIZE (3 + (BITS/4)*2)
* \}
*/
+#define MMAP_PROT_READ 0x001
+#define MMAP_PROT_WRITE 0x002
+#define MMAP_PROT_EXEC 0x004
+
+#define MMAP_MAP_SHARED 0x001
+#define MMAP_MAP_PRIVATE 0x002
+#define MMAP_MAP_FIXED 0x004
+#define MMAP_MAP_ANONYMOUS 0x008
+
// -- System Call Structures ---
/**
* \brief ACL Defintion Structure
*/
typedef struct sFInfo
{
- Uint uid; //!< Owning User ID
- Uint gid; //!< Owning Group ID
- Uint flags; //!< File flags
+ tMount mount; //!< Mountpoint ID
+ tInode inode; //!< Inode
+ Uint32 uid; //!< Owning User ID
+ Uint32 gid; //!< Owning Group ID
+ Uint32 flags; //!< File flags
Uint64 size; //!< File Size
Sint64 atime; //!< Last Accessed time
Sint64 mtime; //!< Last modified time
Sint64 ctime; //!< Creation time
- int numacls; //!< Total number of ACL entries
+ Sint32 numacls; //!< Total number of ACL entries
tVFS_ACL acls[]; //!< ACL buffer (size is passed in the \a MaxACLs argument to VFS_FInfo)
} tFInfo;
* \return VFS Handle (an integer) or -1 if an error occured
*/
extern int VFS_Open(const char *Path, Uint Mode);
+/**
+ * \brief Opens a file via an open directory
+ * \note The file to open must be a direct child of the parent
+ * \param FD Parent Directory
+ * \param Name Child name
+ * \param Mode Open mode
+ * \return File handle (same as returned from VFS_Open)
+ */
+extern int VFS_OpenChild(int FD, const char *Name, Uint Mode);
+/**
+ * \brief Opens a file given a mount ID and an inode number
+ * \param Mount Mount ID returned by FInfo
+ * \param Inode Inode number from FInfo
+ * \param Mode Open mode (see VFS_Open)
+ * \return File handle (same as VFS_Open)
+ */
+extern int VFS_OpenInode(Uint32 Mount, Uint64 Inode, int Mode);
+
/**
* \brief Close a currently open file
* \param FD Handle returned by ::VFS_Open
* \return Boolean Success
*/
extern int VFS_ReadDir(int FD, char *Dest);
-/**
- * \brief Opens a file via an open directory
- * \note The file to open must be a direct child of the parent
- * \param Errno Error number
- * \param FD Parent Directory
- * \param Name Child name
- * \param Mode Open mode
- * \return File handle (same as returned from VFS_Open)
- */
-extern int VFS_OpenChild(Uint *Errno, int FD, const char *Name, Uint Mode);
-
/**
* \brief Wait for an aciton on a file descriptor
* \param MaxHandle Maximum set handle in \a *Handles
*/
extern int VFS_Select(int MaxHandle, fd_set *ReadHandles, fd_set *WriteHandles, fd_set *ErrHandles, tTime *Timeout, BOOL IsKernel);
+/**
+ * \brief Map a file into memory
+ * \param DestHint Suggested place for read data
+ * \param Length Size of area to map
+ * \param Protection Protection type (see `man mmap`)
+ * \param Flags Mapping flags
+ * \param FD File descriptor to load from
+ * \param Offset Start of region
+ */
+extern void *VFS_MMap(void *DestHint, size_t Length, int Protection, int Flags, int FD, Uint64 Offset);
+
+/**
+ * \brief Unmap memory allocated by VFS_MMap
+ * \param ErrNo Error status pointer
+ * \param Addr Address of data to unmap
+ * \param Length Length of data
+ */
+extern int VFS_MUnmap(void *Addr, size_t Length);
#endif