55 #define JS_INSERT_BEFORE(_e,_l)  \  argument
57         (_e)->next = (_l);       \
58         (_e)->prev = (_l)->prev; \
59         (_l)->prev->next = (_e); \
60         (_l)->prev = (_e);       \
66 #define JS_INSERT_AFTER(_e,_l)   \  argument
68         (_e)->next = (_l)->next; \
69         (_e)->prev = (_l);       \
70         (_l)->next->prev = (_e); \
71         (_l)->next = (_e);       \
77 #define JS_NEXT_LINK(_e)         \  argument
78         ((_e)->next)
82 #define JS_PREV_LINK(_e)         \  argument
83         ((_e)->prev)
88 #define JS_APPEND_LINK(_e,_l) JS_INSERT_BEFORE(_e,_l)  argument
93 #define JS_INSERT_LINK(_e,_l) JS_INSERT_AFTER(_e,_l)  argument
102 #define JS_REMOVE_LINK(_e)             \  argument
104         (_e)->prev->next = (_e)->next; \
105         (_e)->next->prev = (_e)->prev; \
112 #define JS_REMOVE_AND_INIT_LINK(_e)    \  argument
114         (_e)->prev->next = (_e)->next; \
115         (_e)->next->prev = (_e)->prev; \
116         (_e)->next = (_e);             \
117         (_e)->prev = (_e);             \