9f96ef98ab400185af088e94d0183bad431b1141
[paraslash.git] / buffer_tree.h
1
2 struct btr_node;
3 struct btr_pool;
4
5 typedef int (*btr_command_handler)(struct btr_node *btrn,
6 const char *command, char **result);
7
8 enum btr_node_type {
9 BTR_NT_ROOT,
10 BTR_NT_INTERNAL,
11 BTR_NT_LEAF,
12 };
13
14 struct btr_pool *btr_pool_new(const char *name, size_t area_size);
15 void btr_pool_free(struct btr_pool *btrp);
16 size_t btr_pool_get_buffer(struct btr_pool *btrp, char **result);
17 void btr_pool_allocate(struct btr_pool *btrp, size_t size);
18 void btr_add_output_pool(struct btr_pool *btrp, size_t size,
19 struct btr_node *btrn);
20 size_t btr_pool_unused(struct btr_pool *btrp);
21 void btr_copy(const void *src, size_t n, struct btr_pool *btrp,
22 struct btr_node *btrn);
23
24 struct btr_node *btr_new_node(const char *name, struct btr_node *parent,
25 btr_command_handler handler, void *context);
26 void btr_remove_node(struct btr_node *btrn);
27 void btr_free_node(struct btr_node *btrn);
28 void btr_add_output(char *buf, size_t size, struct btr_node *btrn);
29 bool btr_no_children(struct btr_node *btrn);
30 size_t btr_bytes_pending(struct btr_node *btrn);
31 size_t btr_get_input_queue_size(struct btr_node *btrn);
32 bool btr_no_parent(struct btr_node *btrn);
33 size_t btr_next_buffer(struct btr_node *btrn, char **bufp);
34 void btr_consume(struct btr_node *btrn, size_t numbytes);
35 int btr_exec(struct btr_node *btrn, const char *command, char **value_result);
36 int btr_exec_up(struct btr_node *btrn, const char *command, char **value_result);
37 void btr_splice_out_node(struct btr_node *btrn);
38 void btr_pushdown(struct btr_node *btrn);
39 void *btr_context(struct btr_node *btrn);
40 void btr_merge(struct btr_node *btrn, size_t dest_size);
41 bool btr_eof(struct btr_node *btrn);
42 void btr_log_tree(struct btr_node *btrn, int loglevel);
43 int btr_pushdown_one(struct btr_node *btrn);
44 bool btr_inplace_ok(struct btr_node *btrn);
45 int btr_node_status(struct btr_node *btrn, size_t min_iqs,
46 enum btr_node_type type);
47 void btr_get_node_start(struct btr_node *btrn, struct timeval *tv);
48 struct btr_node *btr_search_node(const char *name, struct btr_node *root);