mirror of
https://git.kernel.org/pub/scm/fs/ext2/e2fsprogs.git
synced 2024-12-30 12:14:09 +08:00
145 lines
4.5 KiB
C
145 lines
4.5 KiB
C
/*
|
|
* Dictionary Abstract Data Type
|
|
* Copyright (C) 1997 Kaz Kylheku <kaz@ashi.footprints.net>
|
|
*
|
|
* Free Software License:
|
|
*
|
|
* All rights are reserved by the author, with the following exceptions:
|
|
* Permission is granted to freely reproduce and distribute this software,
|
|
* possibly in exchange for a fee, provided that this copyright notice appears
|
|
* intact. Permission is also granted to adapt this software to produce
|
|
* derivative works, as long as the modified versions carry this copyright
|
|
* notice and additional notices stating that the work has been modified.
|
|
* This source code may be translated into executable form and incorporated
|
|
* into proprietary software; there is no requirement for such software to
|
|
* contain a copyright notice related to this source.
|
|
*
|
|
* $Id: dict.h,v 1.22.2.6 2000/11/13 01:36:44 kaz Exp $
|
|
* $Name: kazlib_1_20 $
|
|
*/
|
|
|
|
#ifndef DICT_H
|
|
#define DICT_H
|
|
|
|
#include <limits.h>
|
|
#ifdef KAZLIB_SIDEEFFECT_DEBUG
|
|
#include "sfx.h"
|
|
#endif
|
|
|
|
/*
|
|
* Blurb for inclusion into C++ translation units
|
|
*/
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
typedef unsigned long dictcount_t;
|
|
#define DICTCOUNT_T_MAX ULONG_MAX
|
|
|
|
/*
|
|
* The dictionary is implemented as a red-black tree
|
|
*/
|
|
|
|
typedef enum { dnode_red, dnode_black } dnode_color_t;
|
|
|
|
typedef struct dnode_t {
|
|
#if defined(DICT_IMPLEMENTATION) || !defined(KAZLIB_OPAQUE_DEBUG)
|
|
struct dnode_t *dict_left;
|
|
struct dnode_t *dict_right;
|
|
struct dnode_t *dict_parent;
|
|
dnode_color_t dict_color;
|
|
const void *dict_key;
|
|
void *dict_data;
|
|
#else
|
|
int dict_dummy;
|
|
#endif
|
|
} dnode_t;
|
|
|
|
typedef int (*dict_comp_t)(const void *, const void *);
|
|
typedef dnode_t *(*dnode_alloc_t)(void *);
|
|
typedef void (*dnode_free_t)(dnode_t *, void *);
|
|
|
|
typedef struct dict_t {
|
|
#if defined(DICT_IMPLEMENTATION) || !defined(KAZLIB_OPAQUE_DEBUG)
|
|
dnode_t dict_nilnode;
|
|
dictcount_t dict_nodecount;
|
|
dictcount_t dict_maxcount;
|
|
dict_comp_t dict_compare;
|
|
dnode_alloc_t dict_allocnode;
|
|
dnode_free_t dict_freenode;
|
|
void *dict_context;
|
|
int dict_dupes;
|
|
#else
|
|
int dict_dummmy;
|
|
#endif
|
|
} dict_t;
|
|
|
|
typedef void (*dnode_process_t)(dict_t *, dnode_t *, void *);
|
|
|
|
typedef struct dict_load_t {
|
|
#if defined(DICT_IMPLEMENTATION) || !defined(KAZLIB_OPAQUE_DEBUG)
|
|
dict_t *dict_dictptr;
|
|
dnode_t dict_nilnode;
|
|
#else
|
|
int dict_dummmy;
|
|
#endif
|
|
} dict_load_t;
|
|
|
|
extern dict_t *dict_create(dictcount_t, dict_comp_t);
|
|
extern void dict_set_allocator(dict_t *, dnode_alloc_t, dnode_free_t, void *);
|
|
extern void dict_destroy(dict_t *);
|
|
extern void dict_free_nodes(dict_t *);
|
|
extern void dict_free(dict_t *);
|
|
extern dict_t *dict_init(dict_t *, dictcount_t, dict_comp_t);
|
|
extern void dict_init_like(dict_t *, const dict_t *);
|
|
extern int dict_verify(dict_t *);
|
|
extern int dict_similar(const dict_t *, const dict_t *);
|
|
extern dnode_t *dict_lookup(dict_t *, const void *);
|
|
extern dnode_t *dict_lower_bound(dict_t *, const void *);
|
|
extern dnode_t *dict_upper_bound(dict_t *, const void *);
|
|
extern void dict_insert(dict_t *, dnode_t *, const void *);
|
|
extern dnode_t *dict_delete(dict_t *, dnode_t *);
|
|
extern int dict_alloc_insert(dict_t *, const void *, void *);
|
|
extern void dict_delete_free(dict_t *, dnode_t *);
|
|
extern dnode_t *dict_first(dict_t *);
|
|
extern dnode_t *dict_last(dict_t *);
|
|
extern dnode_t *dict_next(dict_t *, dnode_t *);
|
|
extern dnode_t *dict_prev(dict_t *, dnode_t *);
|
|
extern dictcount_t dict_count(dict_t *);
|
|
extern int dict_isempty(dict_t *);
|
|
extern int dict_isfull(dict_t *);
|
|
extern int dict_contains(dict_t *, dnode_t *);
|
|
extern void dict_allow_dupes(dict_t *);
|
|
extern int dnode_is_in_a_dict(dnode_t *);
|
|
extern dnode_t *dnode_create(void *);
|
|
extern dnode_t *dnode_init(dnode_t *, void *);
|
|
extern void dnode_destroy(dnode_t *);
|
|
extern void *dnode_get(dnode_t *);
|
|
extern const void *dnode_getkey(dnode_t *);
|
|
extern void dnode_put(dnode_t *, void *);
|
|
extern void dict_process(dict_t *, void *, dnode_process_t);
|
|
extern void dict_load_begin(dict_load_t *, dict_t *);
|
|
extern void dict_load_next(dict_load_t *, dnode_t *, const void *);
|
|
extern void dict_load_end(dict_load_t *);
|
|
extern void dict_merge(dict_t *, dict_t *);
|
|
|
|
#if defined(DICT_IMPLEMENTATION) || !defined(KAZLIB_OPAQUE_DEBUG)
|
|
#ifdef KAZLIB_SIDEEFFECT_DEBUG
|
|
#define dict_isfull(D) (SFX_CHECK(D)->dict_nodecount == (D)->dict_maxcount)
|
|
#else
|
|
#define dict_isfull(D) ((D)->dict_nodecount == (D)->dict_maxcount)
|
|
#endif
|
|
#define dict_count(D) ((D)->dict_nodecount)
|
|
#define dict_isempty(D) ((D)->dict_nodecount == 0)
|
|
#define dnode_get(N) ((N)->dict_data)
|
|
#define dnode_getkey(N) ((N)->dict_key)
|
|
#define dnode_put(N, X) ((N)->dict_data = (X))
|
|
#endif
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif
|