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147 lines
4.7 KiB
C
147 lines
4.7 KiB
C
/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 2; tab-width: 2 -*- */
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/*
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* usrtc.h
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* Copyright (C) 2006-2016 Alexander Vdolainen <avdolainen@zoho.com>
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*
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* libtdata is free software: you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published
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* by the Free Software Foundation, either version 2.1 of the License, or
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* (at your option) any later version.
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*
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* libtdata is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.";
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*/
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#ifndef __USRTC_H__
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#define __USRTC_H__
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#define USRTC_COUNT_T_MAX ((1 << (sizeof(unsigned long)*(sizeof(char) << 1)))-1)
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/* count and some misc typedefs */
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typedef unsigned long usrtc_count_t;
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typedef unsigned int usrtc_impl_id_t;
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/* implementation's typedefs */
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#define USRTC_LIST 0
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#define USRTC_BST 1
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#define USRTC_REDBLACK 2
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#define USRTC_SPLAY 3
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#define USRTC_AVL 4
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typedef enum {
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usrtc_lst,
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usrtc_bst,
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usrtc_other
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} usrtc_impltype_t;
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typedef enum {
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usrtc_red,
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usrtc_black
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} usrtc_rb_color_t;
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typedef enum {
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usrtc_balanced,
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usrtc_leftheavy,
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usrtc_rightheavy
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} usrtc_avl_balance_t;
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/* used for the specific implementation features */
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typedef union {
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int usrtc_dummy;
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usrtc_rb_color_t usrtc_rb_color;
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usrtc_avl_balance_t usrtc_avl_balance;
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} usrtc_impldata_t;
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/* universal node */
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typedef struct __usrtc_node_t {
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struct __usrtc_node_t *usrtc_left;
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struct __usrtc_node_t *usrtc_right;
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struct __usrtc_node_t *usrtc_parent;
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void *usrtc_data;
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const void *usrtc_node_key;
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usrtc_impldata_t usrtc_impldata;
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} usrtc_node_t;
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typedef long (*usrtc_compare_t)(const void*, const void*);
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typedef usrtc_node_t *(*usrtc_node_alloc_t)(void *);
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typedef void (*usrtc_node_free_t)(void *, usrtc_node_t *);
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typedef struct __usrtc_t {
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struct __usrtc_functions_t *usrtc_futable;
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usrtc_count_t usrtc_nodecount;
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usrtc_count_t usrtc_maxcount;
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int usrtc_dupes_allowed;
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usrtc_node_t usrtc_sentinel;
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usrtc_compare_t usrtc_compare;
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usrtc_node_alloc_t usrtc_node_alloc;
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usrtc_node_free_t usrtc_node_free;
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void *usrtc_context;
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} usrtc_t;
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typedef struct __usrtc_functions_t {
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void (*usrtc_init)(usrtc_t *);
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void (*usrtc_insert)(usrtc_t *, usrtc_node_t *, const void *);
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void (*usrtc_delete)(usrtc_t *, usrtc_node_t *);
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usrtc_node_t *(*usrtc_lookup)(usrtc_t *, const void *);
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usrtc_node_t *(*usrtc_lower_bound)(usrtc_t *, const void *);
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usrtc_node_t *(*usrtc_upper_bound)(usrtc_t *, const void *);
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usrtc_node_t *(*usrtc_first)(usrtc_t *);
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usrtc_node_t *(*usrtc_last)(usrtc_t *);
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usrtc_node_t *(*usrtc_next)(usrtc_t *, usrtc_node_t *);
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usrtc_node_t *(*usrtc_prev)(usrtc_t *, usrtc_node_t *);
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void (*usrtc_convert_to_list)(usrtc_t *);
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void (*usrtc_convert_from_list)(usrtc_t *);
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usrtc_impltype_t usrtc_type;
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} usrtc_functions_t;
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/* basic usrtc functions */
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/* initialize usrtc core structure */
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void usrtc_init(usrtc_t *us, int impl, usrtc_count_t maxcount,
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usrtc_compare_t compare);
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/* allocate and initialize core structure: going to be deprecated */
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usrtc_t *usrtc_create(int impl, usrtc_count_t maxcount,
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usrtc_compare_t compare);
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/* destroy(free) usrtc core structure: going to be deprecated */
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void usrtc_destroy(usrtc_t *us);
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void usrtc_convert_to(usrtc_t *us,int impl);
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usrtc_count_t usrtc_count(usrtc_t *us);
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int usrtc_isempty(usrtc_t *us);
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int usrtc_isfull(usrtc_t *us);
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int usrtc_alloc_insert(usrtc_t *us,const void *key,void *data);
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void usrtc_delete_free(usrtc_t *us,usrtc_node_t *node);
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void usrtc_set_allocator(usrtc_t *us,usrtc_node_alloc_t alloc,usrtc_node_free_t n_free,void *context);
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void usrtc_allow_dupes(usrtc_t *ud);
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/*basic node functions*/
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void usrtc_node_init(usrtc_node_t *node,void *data);
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usrtc_node_t *usrtc_node_create(void *data);
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void usrtc_node_destroy(usrtc_node_t *node);
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void *usrtc_node_getdata(usrtc_node_t *node);
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void usrtc_node_setdata(usrtc_node_t *node,void *data);
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const void *usrtc_node_getkey(usrtc_node_t *node);
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/*rtc wrappers for the specific data structure functions*/
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void usrtc_insert(usrtc_t *us,usrtc_node_t *node,const void *key);
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void usrtc_delete(usrtc_t *us,usrtc_node_t *node);
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usrtc_node_t *usrtc_lookup(usrtc_t *us,const void *key);
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usrtc_node_t *usrtc_lower_bound(usrtc_t *us,const void *key);
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usrtc_node_t *usrtc_upper_bound(usrtc_t *us,const void *key);
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usrtc_node_t *usrtc_first(usrtc_t *us);
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usrtc_node_t *usrtc_last(usrtc_t *us);
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usrtc_node_t *usrtc_next(usrtc_t *us,usrtc_node_t *node);
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usrtc_node_t *usrtc_prev(usrtc_t *us,usrtc_node_t *node);
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#endif /*__USRTC_H__*/
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