blob: 06e0005801e490449c9f34bff53c7d87665c719f (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
|
/*
* %CopyrightBegin%
*
* Copyright Ericsson AB 1998-2018. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* %CopyrightEnd%
*/
#ifndef _DB_TREE_H
#define _DB_TREE_H
#include "erl_db_util.h"
typedef struct tree_db_term {
struct tree_db_term *left, *right; /* left and right child */
int balance; /* tree balancing value */
DbTerm dbterm; /* The actual term */
} TreeDbTerm;
typedef struct {
Uint pos; /* Current position on stack */
Uint slot; /* "Slot number" of top element or 0 if not set */
TreeDbTerm** array; /* The stack */
} DbTreeStack;
typedef struct db_table_tree {
DbTableCommon common;
/* Tree-specific fields */
TreeDbTerm *root; /* The tree root */
Uint deletion; /* Being deleted */
erts_atomic_t is_stack_busy;
DbTreeStack static_stack;
} DbTableTree;
/*
** Function prototypes, looks the same (except the suffix) for all
** table types. The process is always an [in out] parameter.
*/
void db_initialize_tree(void);
int db_create_tree(Process *p, DbTable *tbl);
void
erts_db_foreach_thr_prgr_offheap_tree(void (*func)(ErlOffHeap *, void *),
void *arg);
#endif /* _DB_TREE_H */
|
