Harald Welte | d523a69 | 2015-08-30 23:11:19 +0200 | [diff] [blame] | 1 | /*- |
| 2 | * Copyright (c) 2003, 2004 Lev Walkin <vlm@lionet.info>. All rights reserved. |
| 3 | * Redistribution and modifications are permitted subject to BSD license. |
| 4 | */ |
| 5 | #ifndef ASN_SET_OF_H |
| 6 | #define ASN_SET_OF_H |
| 7 | |
| 8 | #ifdef __cplusplus |
| 9 | extern "C" { |
| 10 | #endif |
| 11 | |
| 12 | #define A_SET_OF(type) \ |
| 13 | struct { \ |
| 14 | type **array; \ |
| 15 | int count; /* Meaningful size */ \ |
| 16 | int size; /* Allocated size */ \ |
| 17 | void (*free)(type *); \ |
| 18 | } |
| 19 | |
| 20 | #define ASN_SET_ADD(headptr, ptr) \ |
| 21 | asn_set_add((headptr), (ptr)) |
| 22 | |
| 23 | /******************************************* |
| 24 | * Implementation of the SET OF structure. |
| 25 | */ |
| 26 | |
| 27 | /* |
| 28 | * Add another structure into the set by its pointer. |
| 29 | * RETURN VALUES: |
| 30 | * 0 for success and -1/errno for failure. |
| 31 | */ |
| 32 | int asn_set_add(void *asn_set_of_x, void *ptr); |
| 33 | |
| 34 | /* |
| 35 | * Delete the element from the set by its number (base 0). |
| 36 | * This is a constant-time operation. The order of elements before the |
| 37 | * deleted ones is guaranteed, the order of elements after the deleted |
| 38 | * one is NOT guaranteed. |
| 39 | * If _do_free is given AND the (*free) is initialized, the element |
| 40 | * will be freed using the custom (*free) function as well. |
| 41 | */ |
| 42 | void asn_set_del(void *asn_set_of_x, int number, int _do_free); |
| 43 | |
| 44 | /* |
| 45 | * Empty the contents of the set. Will free the elements, if (*free) is given. |
| 46 | * Will NOT free the set itself. |
| 47 | */ |
| 48 | void asn_set_empty(void *asn_set_of_x); |
| 49 | |
| 50 | /* |
| 51 | * Cope with different conversions requirements to/from void in C and C++. |
| 52 | * This is mostly useful for support library. |
| 53 | */ |
| 54 | typedef A_SET_OF(void) asn_anonymous_set_; |
| 55 | #define _A_SET_FROM_VOID(ptr) ((asn_anonymous_set_ *)(ptr)) |
| 56 | #define _A_CSET_FROM_VOID(ptr) ((const asn_anonymous_set_ *)(ptr)) |
| 57 | |
| 58 | #ifdef __cplusplus |
| 59 | } |
| 60 | #endif |
| 61 | |
| 62 | #endif /* ASN_SET_OF_H */ |