| 1 | #include <sys/queue.h> |
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| 2 | |
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| 3 | #define HEADNAME_(S) S ## Head |
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| 4 | |
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| 5 | #define BFX_INTRUSION(S) TAILQ_ENTRY(S) xx; |
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| 6 | #define BFX_EXTRUSION_DECL(S) |
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| 7 | #define BFX_EXTRUSION_FOLLOWUP(S) TAILQ_HEAD(HEADNAME_(S), S); |
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| 8 | #define BFX_LIST_HEAD_T(S) struct HEADNAME_(S) |
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| 9 | #define BFX_LISTED_ELEM_T(S) S* |
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| 10 | |
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| 11 | #define BFX_INSERT_FIRST(S, lst, item) ({TAILQ_INSERT_HEAD(&lst, &item, xx); &item;}) |
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| 12 | #define BFX_INSERT_LAST(S, lst, item) ({TAILQ_INSERT_TAIL(&lst, &item, xx); &item;}) |
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| 13 | #define BFX_INSERT_BEFORE(S, lst, item, refIter) ({TAILQ_INSERT_BEFORE(refIter, &item, xx); &item;}) |
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| 14 | #define BFX_INSERT_AFTER(S, lst, item, refIter) ({TAILQ_INSERT_AFTER(&lst, refIter, &item, xx); &item;}) |
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| 15 | #define BFX_REMOVE_FIRST(S, lst) ({ S * first=TAILQ_FIRST( &lst ); TAILQ_REMOVE( &lst, first, xx ); }) // about two steps: see tailq-bug.c |
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| 16 | #define BFX_REMOVE_LAST(S, lst) ({ S * last =TAILQ_LAST ( &lst, HEADNAME_(S) ); TAILQ_REMOVE( &lst, last , xx ); }) |
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| 17 | #define BFX_REMOVE_HERE(S, lst, refIter) TAILQ_REMOVE( &lst, refIter, xx ) |
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| 18 | #define BFX_INIT(S, lst) TAILQ_INIT(&lst); |
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| 19 | |
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| 20 | #define BFX_GET_AFTER(S, lst, iter) TAILQ_NEXT(iter, xx) |
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| 21 | #define BFX_GET_BEFORE(S, lst, iter) TAILQ_PREV(iter, HEADNAME_(S), xx) |
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| 22 | #define BFX_IS_VALID_POS(S, lst, iter) ((iter)!=NULL) |
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| 23 | #define BFX_DEREF_POS(S, lst, iter) (iter) |
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