diff options
Diffstat (limited to 'server/tree.h')
-rw-r--r-- | server/tree.h | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/server/tree.h b/server/tree.h new file mode 100644 index 0000000..e6eea84 --- /dev/null +++ b/server/tree.h @@ -0,0 +1,37 @@ +/* + * server/tree.h - Mechanism to store Datasets in binary trees. + */ + + +/* + * This structure represents a Dataset along with its config file and + * file descriptor. This type of items will be stored in a binary + * tree. The key to this structure is the Dataset's Volume-ID and + * Release-ID (they must be unique in each server instance). + */ +typedef struct node { + dataset_t *ds; + char path[FILE_NAME_MAX]; + int fd; + int servers; + dnbd2_server_t server[ALT_SERVERS_MAX]; +} node_t; + + +/* + * Returns: 0 on success or -1 on failure. + */ +int tree_insert(node_t *data, void **tree); + + +/* + * Returns: Pointer to item on search-hit or NULL on search-miss. + */ +node_t *tree_find(node_t *data, void **tree); + + +/* + * Free all resources used by the tree. Useful when reloading + * datasets. + */ +void tree_destroy(void **tree); |