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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 | |
718e3744 | 27 | /* struct for vector */ |
d62a17ae | 28 | struct _vector { |
29 | unsigned int active; /* number of active slots */ | |
30 | unsigned int alloced; /* number of allocated slot */ | |
31 | void **index; /* index to data */ | |
718e3744 | 32 | }; |
33 | typedef struct _vector *vector; | |
34 | ||
35 | #define VECTOR_MIN_SIZE 1 | |
36 | ||
37 | /* (Sometimes) usefull macros. This macro convert index expression to | |
38 | array expression. */ | |
55468c86 | 39 | /* Reference slot at given index, caller must ensure slot is active */ |
718e3744 | 40 | #define vector_slot(V,I) ((V)->index[(I)]) |
d62a17ae | 41 | /* Number of active slots. |
55468c86 | 42 | * Note that this differs from vector_count() as it the count returned |
43 | * will include any empty slots | |
44 | */ | |
45 | #define vector_active(V) ((V)->active) | |
718e3744 | 46 | |
47 | /* Prototypes. */ | |
d62a17ae | 48 | extern vector vector_init(unsigned int size); |
49 | extern void vector_ensure(vector v, unsigned int num); | |
50 | extern int vector_empty_slot(vector v); | |
51 | extern int vector_set(vector v, void *val); | |
52 | extern int vector_set_index(vector v, unsigned int i, void *val); | |
53 | extern void vector_unset(vector v, unsigned int i); | |
54 | extern void vector_unset_value(vector v, void *val); | |
62bece44 | 55 | extern void vector_remove(vector v, unsigned int ix); |
f428cb8a | 56 | extern void vector_compact(vector v); |
d62a17ae | 57 | |
58 | extern unsigned int vector_count(vector v); | |
59 | extern void vector_free(vector v); | |
60 | extern vector vector_copy(vector v); | |
61 | ||
62 | extern void *vector_lookup(vector, unsigned int); | |
63 | extern void *vector_lookup_ensure(vector, unsigned int); | |
fe011935 QY |
64 | extern void vector_to_array(vector v, void ***dest, int *argc); |
65 | extern vector array_to_vector(void **src, int argc); | |
718e3744 | 66 | #endif /* _ZEBRA_VECTOR_H */ |