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author | Cyrille Bagard <nocbos@gmail.com> | 2015-10-06 18:47:10 (GMT) |
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committer | Cyrille Bagard <nocbos@gmail.com> | 2015-10-06 18:47:10 (GMT) |
commit | 0588195aedf09d4dfcee16dfd1cb3856961b1e4e (patch) | |
tree | f95352aff5938a7b37d7a639329cbedfcb9e056f /src/common/bits.h | |
parent | bc9c991e4aba495e2cb7c1962ce790f91ca62d9e (diff) |
Optimized loop detections using bit fields.
git-svn-id: svn://svn.gna.org/svn/chrysalide/trunk@586 abbe820e-26c8-41b2-8c08-b7b2b41f8b0a
Diffstat (limited to 'src/common/bits.h')
-rw-r--r-- | src/common/bits.h | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/src/common/bits.h b/src/common/bits.h new file mode 100644 index 0000000..6eeb19c --- /dev/null +++ b/src/common/bits.h @@ -0,0 +1,86 @@ + +/* Chrysalide - Outil d'analyse de fichiers binaires + * bits.h - prototypes pour la manipulation d'un champ de bits quelconque + * + * Copyright (C) 2015 Cyrille Bagard + * + * This file is part of Chrysalide. + * + * OpenIDA is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3 of the License, or + * (at your option) any later version. + * + * OpenIDA is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with Foobar. If not, see <http://www.gnu.org/licenses/>. + */ + + +#ifndef _COMMON_BITS_H +#define _COMMON_BITS_H + + +#include "../arch/vmpa.h" + + + +/* ----------------------------- CHAMPS DE BITS SIMPLES ----------------------------- */ + + +/* Champ de bits simple */ +typedef struct _bitfield_t bitfield_t; + + +/* Crée un champ de bits initialisé à zéro. */ +bitfield_t *create_bit_field(size_t); + +/* Crée une copie de champ de bits initialisé à zéro. */ +bitfield_t *create_bit_field_from(const bitfield_t *); + +/* Supprime de la mémoire un champ de bits donné. */ +void delete_bit_field(bitfield_t *); + +/* Crée une copie d'un champ de bits classique. */ +bitfield_t *dup_bit_field(const bitfield_t *); + +/* Bascule à 1 une partie d'un champ de bits. */ +void set_in_bit_field(bitfield_t *, size_t, size_t); + +/* Détermine si un bit est à 1 dans un champ de bits. */ +bool test_in_bit_field(bitfield_t *, size_t, size_t); + + + +/* ------------------------- CHAMPS LIES À UNE ZONE MEMOIRE ------------------------- */ + + +/* Champ de bits couvrant une mémoire */ +typedef struct _bitfield_t memfield_t; + + +/* Crée un champ de bits couvrant une zone mémoire. */ +memfield_t *create_mem_field(const mrange_t *); + +/* Crée une copie de champ de bits couvrant une zone mémoire. */ +memfield_t *create_mem_field_from(const memfield_t *); + +/* Supprime de la mémoire un champ de bits donné. */ +void delete_mem_field(memfield_t *); + +/* Crée une copie d'un champ de bits couvrant une zone mémoire. */ +memfield_t *dup_mem_field(const memfield_t *); + +/* Bascule à 1 un bit d'un champ de bits. */ +void set_in_mem_field(memfield_t *, const vmpa2t *); + +/* Détermine si un bit est à 1 dans un champ de bits. */ +bool test_in_mem_field(memfield_t *, const vmpa2t *); + + + +#endif /* _COMMON_BITS_H */ |