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Line 54... | Line 54... | ||
54 | VFS_CREATE, |
54 | VFS_CREATE, |
55 | VFS_CLOSE, |
55 | VFS_CLOSE, |
56 | VFS_READ, |
56 | VFS_READ, |
57 | VFS_WRITE, |
57 | VFS_WRITE, |
58 | VFS_SEEK, |
58 | VFS_SEEK, |
- | 59 | VFS_RENAME, |
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- | 60 | VFS_UNLINK, |
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59 | VFS_LAST, /* keep this the last member of the enum */ |
61 | VFS_LAST, /* keep this the last member of the enum */ |
60 | } vfs_request_t; |
62 | } vfs_request_t; |
61 | 63 | ||
62 | 64 | ||
63 | /** |
65 | /** |
Line 128... | Line 130... | ||
128 | * Instances of this type represent an active, in-memory VFS node and any state |
130 | * Instances of this type represent an active, in-memory VFS node and any state |
129 | * which may be associated with it. |
131 | * which may be associated with it. |
130 | */ |
132 | */ |
131 | typedef struct { |
133 | typedef struct { |
132 | VFS_TRIPLET; /**< Identity of the node. */ |
134 | VFS_TRIPLET; /**< Identity of the node. */ |
133 | atomic_t refcnt; /**< Usage counter. */ |
135 | unsigned refcnt; /**< Usage counter. */ |
- | 136 | link_t nh_link; /**< Node hash-table link. */ |
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134 | } vfs_node_t; |
137 | } vfs_node_t; |
135 | 138 | ||
136 | /** |
139 | /** |
137 | * Instances of this type represent an open file. If the file is opened by more |
140 | * Instances of this type represent an open file. If the file is opened by more |
138 | * than one task, there will be a separate structure allocated for each task. |
141 | * than one task, there will be a separate structure allocated for each task. |
139 | */ |
142 | */ |
140 | typedef struct { |
143 | typedef struct { |
141 | vfs_node_t *node; |
144 | vfs_node_t *node; |
142 | 145 | ||
143 | /** Number of file handles referencing this file. */ |
146 | /** Number of file handles referencing this file. */ |
144 | atomic_t refcnt; |
147 | unsigned refcnt; |
145 | 148 | ||
146 | /** Current position in the file. */ |
149 | /** Current position in the file. */ |
147 | off_t pos; |
150 | off_t pos; |
148 | } vfs_file_t; |
151 | } vfs_file_t; |
149 | 152 | ||
Line 164... | Line 167... | ||
164 | 167 | ||
165 | extern atomic_t plb_futex; /**< Futex protecting plb and plb_head. */ |
168 | extern atomic_t plb_futex; /**< Futex protecting plb and plb_head. */ |
166 | extern uint8_t *plb; /**< Path Lookup Buffer */ |
169 | extern uint8_t *plb; /**< Path Lookup Buffer */ |
167 | extern link_t plb_head; /**< List of active PLB entries. */ |
170 | extern link_t plb_head; /**< List of active PLB entries. */ |
168 | 171 | ||
- | 172 | extern atomic_t unlink_futex; /**< VFS_{CREATE|OPEN|UNLINK} serialization. */ |
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- | 173 | ||
169 | extern int vfs_grab_phone(int); |
174 | extern int vfs_grab_phone(int); |
170 | extern void vfs_release_phone(int); |
175 | extern void vfs_release_phone(int); |
171 | 176 | ||
172 | extern int fs_name_to_handle(char *, bool); |
177 | extern int fs_name_to_handle(char *, bool); |
173 | 178 | ||
174 | extern int vfs_lookup_internal(char *, size_t, vfs_triplet_t *, vfs_pair_t *); |
179 | extern int vfs_lookup_internal(char *, size_t, vfs_triplet_t *, vfs_pair_t *); |
- | 180 | ||
- | 181 | ||
175 | extern vfs_node_t *vfs_node_get(vfs_triplet_t *); |
182 | extern vfs_node_t *vfs_node_get(vfs_triplet_t *); |
- | 183 | extern void vfs_node_put(vfs_node_t *); |
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- | 184 | ||
- | 185 | extern bool vfs_files_init(void); |
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- | 186 | extern vfs_file_t *vfs_file_get(int); |
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- | 187 | extern int vfs_fd_alloc(void); |
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- | 188 | extern void vfs_fd_free(int); |
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- | 189 | ||
- | 190 | extern void vfs_file_addref(vfs_file_t *); |
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- | 191 | extern void vfs_file_delref(vfs_file_t *); |
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- | 192 | ||
- | 193 | extern void vfs_node_addref(vfs_node_t *); |
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- | 194 | extern void vfs_node_delref(vfs_node_t *); |
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176 | 195 | ||
177 | #define MAX_OPEN_FILES 128 |
196 | #define MAX_OPEN_FILES 128 |
178 | 197 | ||
179 | extern void vfs_register(ipc_callid_t, ipc_call_t *); |
198 | extern void vfs_register(ipc_callid_t, ipc_call_t *); |
180 | extern void vfs_mount(ipc_callid_t, ipc_call_t *); |
199 | extern void vfs_mount(ipc_callid_t, ipc_call_t *); |