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718e3744 | 1 | /* |
2 | * Generic vector interface header. | |
3 | * Copyright (C) 1997, 98 Kunihiro Ishiguro | |
4 | * | |
5 | * This file is part of GNU Zebra. | |
6 | * | |
7 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2, or (at your option) any | |
10 | * later version. | |
11 | * | |
12 | * GNU Zebra is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * General Public License for more details. | |
16 | * | |
896014f4 DL |
17 | * You should have received a copy of the GNU General Public License along |
18 | * with this program; see the file COPYING; if not, write to the Free Software | |
19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
718e3744 | 20 | */ |
21 | ||
22 | #ifndef _ZEBRA_VECTOR_H | |
23 | #define _ZEBRA_VECTOR_H | |
24 | ||
4a1ab8e4 | 25 | #include "memory.h" |
4a1ab8e4 | 26 | |
5e244469 RW |
27 | #ifdef __cplusplus |
28 | extern "C" { | |
29 | #endif | |
30 | ||
718e3744 | 31 | /* struct for vector */ |
d62a17ae | 32 | struct _vector { |
33 | unsigned int active; /* number of active slots */ | |
34 | unsigned int alloced; /* number of allocated slot */ | |
14c39974 | 35 | unsigned int count; |
d62a17ae | 36 | void **index; /* index to data */ |
718e3744 | 37 | }; |
38 | typedef struct _vector *vector; | |
39 | ||
40 | #define VECTOR_MIN_SIZE 1 | |
41 | ||
42 | /* (Sometimes) usefull macros. This macro convert index expression to | |
43 | array expression. */ | |
55468c86 | 44 | /* Reference slot at given index, caller must ensure slot is active */ |
718e3744 | 45 | #define vector_slot(V,I) ((V)->index[(I)]) |
d62a17ae | 46 | /* Number of active slots. |
55468c86 | 47 | * Note that this differs from vector_count() as it the count returned |
48 | * will include any empty slots | |
49 | */ | |
50 | #define vector_active(V) ((V)->active) | |
718e3744 | 51 | |
52 | /* Prototypes. */ | |
d62a17ae | 53 | extern vector vector_init(unsigned int size); |
54 | extern void vector_ensure(vector v, unsigned int num); | |
55 | extern int vector_empty_slot(vector v); | |
56 | extern int vector_set(vector v, void *val); | |
57 | extern int vector_set_index(vector v, unsigned int i, void *val); | |
58 | extern void vector_unset(vector v, unsigned int i); | |
59 | extern void vector_unset_value(vector v, void *val); | |
62bece44 | 60 | extern void vector_remove(vector v, unsigned int ix); |
f428cb8a | 61 | extern void vector_compact(vector v); |
d62a17ae | 62 | |
14c39974 DL |
63 | static inline unsigned int vector_count(vector v) |
64 | { | |
65 | return v->count; | |
66 | } | |
67 | ||
d62a17ae | 68 | extern void vector_free(vector v); |
69 | extern vector vector_copy(vector v); | |
70 | ||
71 | extern void *vector_lookup(vector, unsigned int); | |
72 | extern void *vector_lookup_ensure(vector, unsigned int); | |
fe011935 QY |
73 | extern void vector_to_array(vector v, void ***dest, int *argc); |
74 | extern vector array_to_vector(void **src, int argc); | |
5e244469 RW |
75 | |
76 | #ifdef __cplusplus | |
77 | } | |
78 | #endif | |
79 | ||
718e3744 | 80 | #endif /* _ZEBRA_VECTOR_H */ |