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Harry Tran1f1098a2020-03-10 10:40:10 -04001/*****************************************************************************
2# *
3# Copyright 2019 AT&T Intellectual Property *
4# *
5# Licensed under the Apache License, Version 2.0 (the "License"); *
6# you may not use this file except in compliance with the License. *
7# You may obtain a copy of the License at *
8# *
9# http://www.apache.org/licenses/LICENSE-2.0 *
10# *
11# Unless required by applicable law or agreed to in writing, software *
12# distributed under the License is distributed on an "AS IS" BASIS, *
13# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
14# See the License for the specific language governing permissions and *
15# limitations under the License. *
16# *
17******************************************************************************/
18
19/*-
20 * Copyright (c) 2003-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
21 * Redistribution and modifications are permitted subject to BSD license.
22 */
23#ifndef ASN_SET_OF_H
24#define ASN_SET_OF_H
25
26#ifdef __cplusplus
27#define A_SET_OF(type) \
28 struct { \
29 type **array; \
30 int count; /* Meaningful size */ \
31 int size; /* Allocated size */ \
32 void (*free)(decltype(*array)); \
33 }
34#else /* C */
35#define A_SET_OF(type) \
36 struct { \
37 type **array; \
38 int count; /* Meaningful size */ \
39 int size; /* Allocated size */ \
40 void (*free)(type *); \
41 }
42#endif
43
44#ifdef __cplusplus
45extern "C" {
46#endif
47
48#define ASN_SET_ADD(headptr, ptr) \
49 asn_set_add((headptr), (ptr))
50
51/*******************************************
52 * Implementation of the SET OF structure.
53 */
54
55/*
56 * Add another structure into the set by its pointer.
57 * RETURN VALUES:
58 * 0 for success and -1/errno for failure.
59 */
60int asn_set_add(void *asn_set_of_x, void *ptr);
61
62/*
63 * Delete the element from the set by its number (base 0).
64 * This is a constant-time operation. The order of elements before the
65 * deleted ones is guaranteed, the order of elements after the deleted
66 * one is NOT guaranteed.
67 * If _do_free is given AND the (*free) is initialized, the element
68 * will be freed using the custom (*free) function as well.
69 */
70void asn_set_del(void *asn_set_of_x, int number, int _do_free);
71
72/*
73 * Empty the contents of the set. Will free the elements, if (*free) is given.
74 * Will NOT free the set itself.
75 */
76void asn_set_empty(void *asn_set_of_x);
77
78/*
79 * Cope with different conversions requirements to/from void in C and C++.
80 * This is mostly useful for support library.
81 */
82typedef A_SET_OF(void) asn_anonymous_set_;
83#define _A_SET_FROM_VOID(ptr) ((asn_anonymous_set_ *)(ptr))
84#define _A_CSET_FROM_VOID(ptr) ((const asn_anonymous_set_ *)(ptr))
85
86#ifdef __cplusplus
87}
88#endif
89
90#endif /* ASN_SET_OF_H */