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| Rev 3386 | Rev 4153 | ||
|---|---|---|---|
| Line 45... | Line 45... | ||
| 45 | 45 | ||
| 46 | #define dprintf(...) |
46 | #define dprintf(...) |
| 47 | 47 | ||
| 48 | #define VFS_FIRST IPC_FIRST_USER_METHOD |
48 | #define VFS_FIRST IPC_FIRST_USER_METHOD |
| 49 | 49 | ||
| 50 | #define IPC_METHOD_TO_VFS_OP(m) ((m) - VFS_FIRST) |
- | |
| 51 | - | ||
| 52 | /* Basic types. */ |
50 | /* Basic types. */ |
| 53 | typedef int16_t fs_handle_t; |
51 | typedef int16_t fs_handle_t; |
| 54 | typedef int16_t dev_handle_t; |
52 | typedef int16_t dev_handle_t; |
| 55 | typedef uint32_t fs_index_t; |
53 | typedef uint32_t fs_index_t; |
| 56 | 54 | ||
| Line 79... | Line 77... | ||
| 79 | VFS_UNLINK, |
77 | VFS_UNLINK, |
| 80 | VFS_RENAME, |
78 | VFS_RENAME, |
| 81 | VFS_LAST_SRV, /* keep this the last member of this enum */ |
79 | VFS_LAST_SRV, /* keep this the last member of this enum */ |
| 82 | } vfs_request_srv_t; |
80 | } vfs_request_srv_t; |
| 83 | 81 | ||
| 84 | - | ||
| 85 | /** |
- | |
| 86 | * An instance of this structure is associated with a particular FS operation. |
- | |
| 87 | * It tells VFS if the FS supports the operation or maybe if a default one |
- | |
| 88 | * should be used. |
- | |
| 89 | */ |
- | |
| 90 | typedef enum { |
- | |
| 91 | VFS_OP_NULL = 0, |
- | |
| 92 | VFS_OP_DEFAULT, |
- | |
| 93 | VFS_OP_DEFINED |
- | |
| 94 | } vfs_op_t; |
- | |
| 95 | - | ||
| 96 | #define FS_NAME_MAXLEN 20 |
82 | #define FS_NAME_MAXLEN 20 |
| 97 | 83 | ||
| 98 | /** |
84 | /** |
| 99 | * A structure like this is passed to VFS by each individual FS upon its |
85 | * A structure like this is passed to VFS by each individual FS upon its |
| 100 | * registration. It assosiates a human-readable identifier with each |
86 | * registration. It assosiates a human-readable identifier with each |
| 101 | * registered FS. More importantly, through this structure, the FS announces |
- | |
| 102 | * what operations it supports. |
87 | * registered FS. |
| 103 | */ |
88 | */ |
| 104 | typedef struct { |
89 | typedef struct { |
| 105 | /** Unique identifier of the fs. */ |
90 | /** Unique identifier of the fs. */ |
| 106 | char name[FS_NAME_MAXLEN + 1]; |
91 | char name[FS_NAME_MAXLEN + 1]; |
| 107 | - | ||
| 108 | /** Operations. */ |
- | |
| 109 | vfs_op_t ops[VFS_LAST_CLNT - VFS_FIRST]; |
- | |
| 110 | } vfs_info_t; |
92 | } vfs_info_t; |
| 111 | 93 | ||
| 112 | /** |
94 | /** |
| 113 | * A structure like this will be allocated for each registered file system. |
95 | * A structure like this will be allocated for each registered file system. |
| 114 | */ |
96 | */ |
| Line 188... | Line 170... | ||
| 188 | * L_PARENT performs a lookup but returns the triplet of the parent node. |
170 | * L_PARENT performs a lookup but returns the triplet of the parent node. |
| 189 | * This flag may not be combined with any other lookup flag. |
171 | * This flag may not be combined with any other lookup flag. |
| 190 | */ |
172 | */ |
| 191 | #define L_PARENT 64 |
173 | #define L_PARENT 64 |
| 192 | 174 | ||
| - | 175 | typedef enum vfs_node_type { |
|
| - | 176 | VFS_NODE_UNKNOWN, |
|
| - | 177 | VFS_NODE_FILE, |
|
| - | 178 | VFS_NODE_DIRECTORY, |
|
| - | 179 | } vfs_node_type_t; |
|
| - | 180 | ||
| 193 | typedef struct { |
181 | typedef struct { |
| 194 | vfs_triplet_t triplet; |
182 | vfs_triplet_t triplet; |
| - | 183 | vfs_node_type_t type; |
|
| 195 | size_t size; |
184 | size_t size; |
| 196 | unsigned lnkcnt; |
185 | unsigned lnkcnt; |
| 197 | } vfs_lookup_res_t; |
186 | } vfs_lookup_res_t; |
| 198 | 187 | ||
| 199 | /** |
188 | /** |
| Line 211... | Line 200... | ||
| 211 | 200 | ||
| 212 | /** Number of names this node has in the file system namespace. */ |
201 | /** Number of names this node has in the file system namespace. */ |
| 213 | unsigned lnkcnt; |
202 | unsigned lnkcnt; |
| 214 | 203 | ||
| 215 | link_t nh_link; /**< Node hash-table link. */ |
204 | link_t nh_link; /**< Node hash-table link. */ |
| - | 205 | ||
| - | 206 | vfs_node_type_t type; /**< Partial info about the node type. */ |
|
| - | 207 | ||
| 216 | size_t size; /**< Cached size if the node is a file. */ |
208 | size_t size; /**< Cached size if the node is a file. */ |
| 217 | 209 | ||
| 218 | /** |
210 | /** |
| 219 | * Holding this rwlock prevents modifications of the node's contents. |
211 | * Holding this rwlock prevents modifications of the node's contents. |
| 220 | */ |
212 | */ |
| Line 288... | Line 280... | ||
| 288 | extern void vfs_file_delref(vfs_file_t *); |
280 | extern void vfs_file_delref(vfs_file_t *); |
| 289 | 281 | ||
| 290 | extern void vfs_node_addref(vfs_node_t *); |
282 | extern void vfs_node_addref(vfs_node_t *); |
| 291 | extern void vfs_node_delref(vfs_node_t *); |
283 | extern void vfs_node_delref(vfs_node_t *); |
| 292 | 284 | ||
| - | 285 | extern void vfs_process_pending_mount(void); |
|
| 293 | extern void vfs_register(ipc_callid_t, ipc_call_t *); |
286 | extern void vfs_register(ipc_callid_t, ipc_call_t *); |
| 294 | extern void vfs_mount(ipc_callid_t, ipc_call_t *); |
287 | extern void vfs_mount(ipc_callid_t, ipc_call_t *); |
| 295 | extern void vfs_open(ipc_callid_t, ipc_call_t *); |
288 | extern void vfs_open(ipc_callid_t, ipc_call_t *); |
| 296 | extern void vfs_close(ipc_callid_t, ipc_call_t *); |
289 | extern void vfs_close(ipc_callid_t, ipc_call_t *); |
| 297 | extern void vfs_read(ipc_callid_t, ipc_call_t *); |
290 | extern void vfs_read(ipc_callid_t, ipc_call_t *); |