-/* $Id$ */
-
-/* Copyright (c) 2004 Arnaud Legrand. All rights reserved. */
+/* Copyright (c) 2004, 2005, 2006, 2007, 2008, 2009, 2010. The SimGrid Team.
+ * All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
those structs directly. Use them as an abstract datatype.
*/
/* @{ */
- typedef struct xbt_swag_hookup {
- void *next;
- void *prev;
- } s_xbt_swag_hookup_t;
+typedef struct xbt_swag_hookup {
+ void *next;
+ void *prev;
+} s_xbt_swag_hookup_t;
/**< This type should be added to a type that is to be used in a swag.
*
* Whenever a new object with this struct is created, all fields have
}
\endcode
*/
- typedef s_xbt_swag_hookup_t *xbt_swag_hookup_t;
+typedef s_xbt_swag_hookup_t *xbt_swag_hookup_t;
- typedef struct xbt_swag {
- void *head;
- void *tail;
- size_t offset;
- int count;
- } s_xbt_swag_t, *xbt_swag_t;
+typedef struct xbt_swag {
+ void *head;
+ void *tail;
+ size_t offset;
+ int count;
+} s_xbt_swag_t, *xbt_swag_t;
/**< A typical swag */
/* @} */
XBT_PUBLIC(xbt_swag_t) xbt_swag_new(size_t offset);
XBT_PUBLIC(void) xbt_swag_free(xbt_swag_t swag);
XBT_PUBLIC(void) xbt_swag_init(xbt_swag_t swag, size_t offset);
-XBT_PUBLIC(void) xbt_swag_insert(void *obj, xbt_swag_t swag);
+
+/**
+ * \brief Makes a swag empty.
+ * \param swag a swag
+ * @hideinitializer
+ */
+#define xbt_swag_reset(swag) do {} while(xbt_swag_extract(swag))
+
+/**
+ * \param obj the objet to insert in the swag
+ * \param swag a swag
+ * @hideinitializer
+ *
+ * insert \a obj in \a swag
+ */
+#define xbt_swag_insert(obj, swag) xbt_swag_insert_at_tail(obj, swag)
+
XBT_PUBLIC(void) xbt_swag_insert_at_head(void *obj, xbt_swag_t swag);
XBT_PUBLIC(void) xbt_swag_insert_at_tail(void *obj, xbt_swag_t swag);
XBT_PUBLIC(void *) xbt_swag_remove(void *obj, xbt_swag_t swag);
XBT_PUBLIC(void *) xbt_swag_extract(xbt_swag_t swag);
XBT_PUBLIC(int) xbt_swag_size(xbt_swag_t swag);
-XBT_PUBLIC(int) xbt_swag_belongs(void *obj, xbt_swag_t swag);
- static XBT_INLINE void *xbt_swag_getFirst(xbt_swag_t swag)
+#define xbt_swag_getPrev(obj, offset) (((xbt_swag_hookup_t)(((char *) (obj)) + (offset)))->prev)
+#define xbt_swag_getNext(obj, offset) (((xbt_swag_hookup_t)(((char *) (obj)) + (offset)))->next)
+#define xbt_swag_belongs(obj, swag) (xbt_swag_getNext((obj), (swag)->offset) || (swag)->tail == (obj))
+
+static XBT_INLINE void *xbt_swag_getFirst(xbt_swag_t swag)
{
return (swag->head);
}
-#define xbt_swag_getNext(obj,offset) (((xbt_swag_hookup_t)(((char *) (obj)) + (offset)))->prev)
-#define xbt_swag_getPrev(obj,offset) (((xbt_swag_hookup_t)(((char *) (obj)) + (offset)))->next)
/**
* \brief Offset computation
#define xbt_swag_foreach_safe(obj,obj_next,swag) \
for((obj)=xbt_swag_getFirst((swag)), \
((obj)?(obj_next=xbt_swag_getNext((obj),(swag)->offset)): \
- (obj_next=NULL)); \
+ (obj_next=NULL)); \
(obj)!=NULL; \
(obj)=obj_next, \
((obj)?(obj_next=xbt_swag_getNext((obj),(swag)->offset)): \
/* @} */
SG_END_DECL()
-#endif /* _XBT_SWAG_H */
+#endif /* _XBT_SWAG_H */