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| Rev 2679 | Rev 2680 | ||
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| Line 34... | Line 34... | ||
| 34 | #define VFS_VFS_H_ |
34 | #define VFS_VFS_H_ |
| 35 | 35 | ||
| 36 | #include <ipc/ipc.h> |
36 | #include <ipc/ipc.h> |
| 37 | #include <libadt/list.h> |
37 | #include <libadt/list.h> |
| 38 | #include <atomic.h> |
38 | #include <atomic.h> |
| - | 39 | #include <rwlock.h> |
|
| 39 | #include <sys/types.h> |
40 | #include <sys/types.h> |
| 40 | #include <bool.h> |
41 | #include <bool.h> |
| 41 | 42 | ||
| 42 | #define dprintf(...) printf(__VA_ARGS__) |
43 | #define dprintf(...) printf(__VA_ARGS__) |
| 43 | 44 | ||
| Line 133... | Line 134... | ||
| 133 | typedef struct { |
134 | typedef struct { |
| 134 | VFS_TRIPLET; /**< Identity of the node. */ |
135 | VFS_TRIPLET; /**< Identity of the node. */ |
| 135 | unsigned refcnt; /**< Usage counter. */ |
136 | unsigned refcnt; /**< Usage counter. */ |
| 136 | link_t nh_link; /**< Node hash-table link. */ |
137 | link_t nh_link; /**< Node hash-table link. */ |
| 137 | 138 | ||
| 138 | /** Holding this futex prevents modifications of the node's contents. */ |
139 | /** Holding this rwlock prevents modifications of the node's contents. */ |
| 139 | atomic_t contents_futex; |
140 | atomic_t contents_rwlock; |
| 140 | } vfs_node_t; |
141 | } vfs_node_t; |
| 141 | 142 | ||
| 142 | /** |
143 | /** |
| 143 | * Instances of this type represent an open file. If the file is opened by more |
144 | * Instances of this type represent an open file. If the file is opened by more |
| 144 | * than one task, there will be a separate structure allocated for each task. |
145 | * than one task, there will be a separate structure allocated for each task. |