| 35,6 → 35,8 |
|---|
| |
| #include <ipc/ipc.h> |
| #include <libadt/list.h> |
| #include <atomic.h> |
| #include <types.h> |
| |
| #define dprintf(...) printf(__VA_ARGS__) |
| |
| 42,6 → 44,8 |
|---|
| |
| #define IPC_METHOD_TO_VFS_OP(m) ((m) - VFS_FIRST) |
| |
| typedef int64_t off_t; |
| |
| typedef enum { |
| VFS_REGISTER = VFS_FIRST, |
| VFS_MOUNT, |
| 84,6 → 88,9 |
|---|
| vfs_op_t ops[VFS_LAST - VFS_FIRST]; |
| } vfs_info_t; |
| |
| /** |
| * A structure like this will be allocated for each registered file system. |
| */ |
| typedef struct { |
| link_t fs_link; |
| vfs_info_t vfs_info; |
| 90,6 → 97,34 |
|---|
| ipcarg_t phone; |
| } fs_info_t; |
| |
| /** |
| * Instances of this type represent a file system node (e.g. directory, file). |
| * They are abstracted away from any file system implementation and contain just |
| * enough bits to uniquely identify the object in its file system instance. |
| * |
| * @note fs_handle, dev_handle and index are meant to be returned in one |
| * IPC reply. |
| */ |
| typedef struct { |
| int fs_handle; /**< Global file system ID. */ |
| int dev_handle; /**< Global mount device devno. */ |
| uint64_t index; /**< Index of the node on its file system. */ |
| } vfs_node_t; |
| |
| /** |
| * Instances of this type represent an open file. If the file is opened by more |
| * than one task, there will be a separate structure allocated for each task. |
| */ |
| typedef struct { |
| vfs_node_t *node; |
| |
| /** Number of file handles referencing this file. */ |
| atomic_t refcnt; |
| |
| /** Current position in the file. */ |
| off_t pos; |
| } vfs_file_t; |
| |
| extern link_t fs_head; |
| |
| extern void vfs_register(ipc_callid_t rid, ipc_call_t *request); |