/* xbt/lib.h - api to a generic library */
-/* Copyright (c) 2011. The SimGrid Team.
+/* Copyright (c) 2011, 2013-2014. The SimGrid Team.
* All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
SG_BEGIN_DECL()
-typedef struct s_xbt_lib {
+/** Container for all the objects of a given type
+ *
+ * * each item is identified by a string name/identifier;
+ *
+ * * the lib itself is a dictionary from the element id to the element;
+ *
+ * * the element itself is represented aby the xbt_dictelm_t;
+ *
+ * * the element can store any number of associated facets/data structures (corresponding to the different layers of
+ * SimGrid or its extensions) in ((void**)dictelt->content)[level];
+ *
+ * * each level is allocated in the lib with `xbt_lib_add_level`.
+ *
+ * <pre>
+ * // Define a collection for the foo objects and two associated facets:
+ * typedef xbt_dictelm_t foo_t;
+ * xbt_lib_t foo_lib = xbt_lib_new();
+ * int BAR_FOO_LEVEL = xbt_lib_add_level(foo_lib, free_bar);
+ * int AUTH_FOO_LEVEL = xbt_lib_add_level(foo_lib, free_auth);
+ *
+ * // Store a bar:
+ * bar_t bar = bar_new();
+ * char* id = bar_name(bar);
+ * xbt_lib_set(id, id, BAR_FOO_LEVEL, bar);
+ *
+ * // Find the corresponding foo and the facet again:
+ * foo_t foo = xbt_lib_get_elm_or_null(foo_lib, id);
+ * bar_t bar2 = (bar_t) xbt_lib_get_level(foo, BAR_FOO_LEVEL);
+ * assert(bar == bar2);
+ *
+ * // Add authentication facet for the previous object:
+ * auth_t auth = auth_new();
+ * xbt_lib_set(foo_lib, id, AUTH_FOO_LEVEL, auth);
+ * </pre>
+ */
+struct s_xbt_lib {
xbt_dict_t dict;
int levels;
void_f_pvoid_t *free_f; /* This is actually a table */
-} s_xbt_lib_t, *xbt_lib_t;
+};
+typedef struct s_xbt_lib s_xbt_lib_t;
+typedef struct s_xbt_lib* xbt_lib_t;
#define xbt_lib_cursor_t xbt_dict_cursor_t
XBT_PUBLIC(xbt_lib_t) xbt_lib_new(void);
XBT_PUBLIC(void) xbt_lib_free(xbt_lib_t * lib);
XBT_PUBLIC(int) xbt_lib_add_level(xbt_lib_t lib, void_f_pvoid_t free_f);
-XBT_PUBLIC(void) xbt_lib_set(xbt_lib_t lib, const char *name, int level,
- void *obj);
-XBT_PUBLIC(void *) xbt_lib_get_or_null(xbt_lib_t lib, const char *name,
- int level);
+XBT_PUBLIC(void) xbt_lib_set(xbt_lib_t lib, const char *name, int level, void *obj);
+XBT_PUBLIC(void) xbt_lib_unset(xbt_lib_t lib, const char *key, int level, int invoke_callback);
+XBT_PUBLIC(void *) xbt_lib_get_or_null(xbt_lib_t lib, const char *name, int level);
XBT_PUBLIC(xbt_dictelm_t) xbt_lib_get_elm_or_null(xbt_lib_t lib, const char *key);
XBT_PUBLIC(void *) xbt_lib_get_level(xbt_dictelm_t elm, int level);
+XBT_PUBLIC(void) xbt_lib_remove(xbt_lib_t lib, const char *key);
#define xbt_lib_length(lib) xbt_dict_length((lib)->dict)
xbt_dict_foreach((lib)->dict, cursor, key, data)
SG_END_DECL()
+
#endif /* _XBT_LIB_H */