3 /* xbt/set.h -- api to a generic dictionary */
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. */
13 #include "xbt/misc.h" /* SG_BEGIN_DECL */
14 #include "xbt/function_types.h"
18 /** @addtogroup XBT_set
19 * @brief A data container consisting in \ref XBT_dict and \ref XBT_dynar
21 * The elements stored in such a data structure can be retrieve both by
22 * name and by ID. For this to work, the first fields of the structures
23 * stored must begin with the following fields:
27 unsigned int name_len;
28 // my other fields, constituting the payload
29 } my_element_type_t; \endverbatim
31 * Since we are casting elements around, no protection is ensured by the
32 * compiler. It is thus safer to define the headers using the macro
33 * defined to that extend:
37 // my other fields, constituting the payload
38 } my_element_type_t; \endverbatim
40 * It is now possible to remove an element from such a data structure.
43 * Such a datastructure was necessary/useful to store the GRAS type
44 * descriptions, but it should be reworked to become generic.
49 /** @defgroup XBT_set_cons Set and set elements, constructor/destructor
54 /** \brief Opaque type representing a set */
55 typedef struct xbt_set_ *xbt_set_t;
57 #define XBT_SET_HEADERS \
62 /** \brief It must be possible to cast set elements to this type */
63 typedef struct xbt_set_elm_ {
64 unsigned int ID; /**< Identificator (system assigned) */
65 char *name; /**< Name (user assigned) */
66 unsigned int name_len;/**< Length of the name */
67 } s_xbt_set_elm_t,*xbt_set_elm_t;
69 /*####[ Functions ]##########################################################*/
70 XBT_PUBLIC(xbt_set_t) xbt_set_new (void);
71 XBT_PUBLIC(void) xbt_set_free(xbt_set_t *set);
74 /** @defgroup XBT_set_basic Sets basic usage
80 XBT_PUBLIC(void) xbt_set_add (xbt_set_t set, xbt_set_elm_t elm, void_f_pvoid_t free_func);
81 XBT_PUBLIC(void) xbt_set_remove (xbt_set_t set, xbt_set_elm_t elm);
82 XBT_PUBLIC(void) xbt_set_remove_by_name (xbt_set_t set, const char *key);
83 XBT_PUBLIC(void) xbt_set_remove_by_name_ext (xbt_set_t set, const char *key, int key_len);
84 XBT_PUBLIC(void) xbt_set_remove_by_id (xbt_set_t set, int id);
86 XBT_PUBLIC(xbt_set_elm_t) xbt_set_get_by_name (xbt_set_t set, const char *key);
87 XBT_PUBLIC(xbt_set_elm_t) xbt_set_get_by_name_ext(xbt_set_t set, const char *key, int key_len);
88 XBT_PUBLIC(xbt_set_elm_t) xbt_set_get_by_id (xbt_set_t set, int id);
90 XBT_PUBLIC(unsigned long) xbt_set_length (const xbt_set_t set);
94 /** @defgroup XBT_set_curs Sets cursors
97 * \warning Don't add or remove entries to the cache while traversing
102 /** @brief Cursor type */
103 typedef struct xbt_set_cursor_ *xbt_set_cursor_t;
105 XBT_PUBLIC(void) xbt_set_cursor_first (xbt_set_t set,
106 xbt_set_cursor_t *cursor);
107 XBT_PUBLIC(void) xbt_set_cursor_step (xbt_set_cursor_t cursor);
108 XBT_PUBLIC(int) xbt_set_cursor_get_or_free (xbt_set_cursor_t *cursor,
111 /** @brief Iterates over the whole set
114 #define xbt_set_foreach(set,cursor,elm) \
115 for ((cursor) = NULL, xbt_set_cursor_first((set),&(cursor)) ; \
116 xbt_set_cursor_get_or_free(&(cursor),(xbt_set_elm_t*)&(elm)); \
117 xbt_set_cursor_step(cursor) )
122 #endif /* _XBT_SET_H */