3 /* set - data container consisting in dict+dynar */
5 /* Copyright (c) 2004 Martin Quinson. All rights reserved. */
7 /* This program is free software; you can redistribute it and/or modify it
8 * under the terms of the license (GNU LGPL) which comes with this package. */
11 #include "xbt/sysdep.h"
13 #include "xbt/error.h"
14 #include "xbt/dynar.h"
19 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(set,xbt,
20 "set: data container consisting in dict+dynar");
22 /*####[ Type definition ]####################################################*/
23 typedef struct xbt_set_ {
24 xbt_dict_t dict; /* data stored by name */
25 xbt_dynar_t dynar; /* data stored by ID */
28 /*####[ Memory ]############################################################*/
29 /** @brief Constructor */
30 xbt_set_t xbt_set_new (void) {
31 xbt_set_t res=xbt_new(s_xbt_set_t,1);
33 res->dict=xbt_dict_new ();
34 res->dynar=xbt_dynar_new(sizeof(void*),NULL);
39 /** @brief Destructor */
40 void xbt_set_free(xbt_set_t *set) {
42 xbt_dict_free ( &( (*set)->dict ) );
43 xbt_dynar_free( &( (*set)->dynar ) );
49 /** @brief Add an element to a set.
51 * \param set set to populate
52 * \param elm element to add.
53 * \param free_func How to add the data
55 * elm->name must be set;
56 * if elm->name_len <= 0, it is recomputed. If >0, it's used as is;
57 * elm->ID is attributed automatically.
59 void xbt_set_add (xbt_set_t set,
61 void_f_pvoid_t *free_func) {
64 xbt_set_elm_t found_in_dict;
66 if (elm->name_len <= 0) {
67 elm->name_len = strlen(elm->name);
70 errcode = xbt_dict_get_ext (set->dict,
71 elm->name, elm->name_len,
72 (void**)&found_in_dict);
73 if (errcode == no_error) {
74 if (elm == found_in_dict) {
75 DEBUG2("Ignoring request to insert the same element twice (key %s ; id %d)",
79 elm->ID=found_in_dict->ID;
80 DEBUG2("Reinsertion of key %s (id %d)", elm->name, elm->ID);
81 xbt_dict_set_ext(set->dict, elm->name, elm->name_len, elm, free_func);
82 xbt_dynar_set(set->dynar, elm->ID, &elm);
86 xbt_assert_error(mismatch_error);
89 elm->ID = xbt_dynar_length( set->dynar );
90 xbt_dict_set_ext(set->dict, elm->name, elm->name_len, elm, free_func);
91 xbt_dynar_set(set->dynar, elm->ID, &elm);
92 DEBUG2("Insertion of key '%s' (id %d)", elm->name, elm->ID);
96 /** @brief Retrive data by providing its name.
99 * \param name Name of the searched cell
100 * \param dst where to put the found data into
102 xbt_error_t xbt_set_get_by_name (xbt_set_t set,
104 /* OUT */xbt_set_elm_t *dst) {
106 errcode = xbt_dict_get_ext(set->dict, name, strlen(name), (void**) dst);
107 DEBUG2("Lookup key %s: %s",name,xbt_error_name(errcode));
111 /** @brief Retrive data by providing its name and the length of the name
114 * \param name Name of the searched cell
115 * \param name_len length of the name, when strlen cannot be trusted
116 * \param dst where to put the found data into
118 * This is useful when strlen cannot be trusted because you don't use a char*
119 * as name, you weirdo.
121 xbt_error_t xbt_set_get_by_name_ext(xbt_set_t set,
124 /* OUT */xbt_set_elm_t *dst) {
126 return xbt_dict_get_ext (set->dict, name, name_len, (void**)dst);
129 /** @brief Retrive data by providing its ID
132 * \param id what you're looking for
133 * \param dst where to put the found data into
135 * @warning, if the ID does not exists, you're getting into trouble
137 xbt_error_t xbt_set_get_by_id (xbt_set_t set,
139 /* OUT */xbt_set_elm_t *dst) {
141 /* Don't bother checking the bounds, the dynar does so */
143 *dst = xbt_dynar_get_as(set->dynar,id,xbt_set_elm_t);
144 DEBUG3("Lookup type of id %d (of %lu): %s",
145 id, xbt_dynar_length(set->dynar), (*dst)->name);
153 typedef struct xbt_set_cursor_ {
156 } s_xbt_set_cursor_t;
158 /** @brief Create the cursor if it does not exists, rewind it in any case. */
159 void xbt_set_cursor_first (xbt_set_t set,
160 xbt_set_cursor_t *cursor) {
164 DEBUG0("Create the cursor on first use");
165 *cursor = xbt_new(s_xbt_set_cursor_t,1);
167 "Malloc error during the creation of the cursor");
169 (*cursor)->set = set;
170 xbt_dynar_cursor_first(set->dynar, &( (*cursor)->val) );
176 /** @brief Move to the next element. */
177 void xbt_set_cursor_step (xbt_set_cursor_t cursor) {
178 xbt_dynar_cursor_step(cursor->set->dynar, &( cursor->val ) );
181 /** @brief Get current data
183 * \return true if it's ok, false if there is no more data
185 int xbt_set_cursor_get_or_free (xbt_set_cursor_t *curs,
186 xbt_set_elm_t *elm) {
187 xbt_set_cursor_t cursor;
189 if (!curs || !(*curs))
194 if (! xbt_dynar_cursor_get( cursor->set->dynar,&(cursor->val),elm) ) {