1 /***** the library wide include file *****/
2 #include "lfds600_internal.h"
5 #define LFDS600_SLIST_USER_DATA 0
6 #define LFDS600_SLIST_FLAGS 1
8 #define LFDS600_SLIST_NO_FLAGS 0x0
9 #define LFDS600_SLIST_FLAG_DELETED 0x1
11 /***** structures *****/
12 #pragma pack( push, LFDS600_ALIGN_SINGLE_POINTER )
14 struct lfds600_slist_state
16 struct lfds600_slist_element
20 (*user_data_delete_function)( void *user_data, void *user_state ),
26 #pragma pack( push, LFDS600_ALIGN_DOUBLE_POINTER )
28 /* TRD : this pragma pack doesn't seem to work under Windows
29 if the structure members are the correct way round
30 (next first), then user_data_and_flags ends up on
31 a single pointer boundary and DCAS crashes
33 accordingly, I've moved user_data_and_flags first
36 struct lfds600_slist_element
39 *volatile user_data_and_flags[2];
41 // TRD : requires volatile as is target of CAS
42 struct lfds600_slist_element
48 /***** private prototypes *****/
49 void lfds600_slist_internal_init_slist( struct lfds600_slist_state *ss, void (*user_data_delete_function)(void *user_data, void *user_state), void *user_state );
51 void lfds600_slist_internal_link_element_to_head( struct lfds600_slist_state *lfds600_slist_state, struct lfds600_slist_element *volatile se );
52 void lfds600_slist_internal_link_element_after_element( struct lfds600_slist_element *volatile lfds600_slist_in_list_element, struct lfds600_slist_element *volatile se );
54 void lfds600_slist_internal_move_to_first_undeleted_element( struct lfds600_slist_element **se );