| 37,11 → 37,57 |
|---|
| |
| #include "vfs.h" |
| |
| /** Increment reference count of a VFS node. |
| * |
| * @param node VFS node that will have its refcnt incremented. |
| */ |
| void vfs_node_addref(vfs_node_t *node) |
| { |
| /* TODO */ |
| } |
| |
| /** Decrement reference count of a VFS node. |
| * |
| * This function handles the case when the reference count drops to zero. |
| * |
| * @param node VFS node that will have its refcnt decremented. |
| */ |
| void vfs_node_delref(vfs_node_t *node) |
| { |
| /* TODO */ |
| } |
| |
| /** Find VFS node. |
| * |
| * This function will try to lookup the given triplet in the VFS node hash |
| * table. In case the triplet is not found there, a new VFS node is created. |
| * In any case, the VFS node will have its reference count incremented. Every |
| * node returned by this call should be eventually put back by calling |
| * vfs_node_put() on it. |
| * |
| * @param triplet Triplet encoding the identity of the VFS node. |
| * |
| * @return VFS node corresponding to the given triplet. |
| */ |
| vfs_node_t *vfs_node_get(vfs_triplet_t *triplet) |
| { |
| return NULL; // TODO: not implemented |
| /* TODO */ |
| return NULL; |
| } |
| |
| /** Return VFS node when no longer needed by the caller. |
| * |
| * This function will remove the reference on the VFS node created by |
| * vfs_node_get(). This function can only be called as a closing bracket to the |
| * preceding vfs_node_get() call. |
| * |
| * @param node VFS node being released. |
| */ |
| void vfs_node_put(vfs_node_t *node) |
| { |
| vfs_node_delref(node); |
| } |
| |
| /** |
| * @} |
| */ |