#ifndef _ASN1_QUEUE_H_
#define _ASN1_QUEUE_H_
#define ASN1_TAILQ_HEAD(name, type) \
struct name { \
struct type *tqh_first; \
struct type **tqh_last; \
}
#define ASN1_TAILQ_HEAD_INITIALIZER(head) \
{ NULL, &(head).tqh_first }
#define ASN1_TAILQ_ENTRY(type) \
struct { \
struct type *tqe_next; \
struct type **tqe_prev; \
}
#if defined(_KERNEL) && defined(QUEUEDEBUG)
#define QUEUEDEBUG_ASN1_TAILQ_INSERT_HEAD(head, elm, field) \
if ((head)->tqh_first && \
(head)->tqh_first->field.tqe_prev != &(head)->tqh_first) \
panic("ASN1_TAILQ_INSERT_HEAD %p %s:%d", (head), __FILE__, __LINE__);
#define QUEUEDEBUG_ASN1_TAILQ_INSERT_TAIL(head, elm, field) \
if (*(head)->tqh_last != NULL) \
panic("ASN1_TAILQ_INSERT_TAIL %p %s:%d", (head), __FILE__, __LINE__);
#define QUEUEDEBUG_ASN1_TAILQ_OP(elm, field) \
if ((elm)->field.tqe_next && \
(elm)->field.tqe_next->field.tqe_prev != \
&(elm)->field.tqe_next) \
panic("ASN1_TAILQ_* forw %p %s:%d", (elm), __FILE__, __LINE__);\
if (*(elm)->field.tqe_prev != (elm)) \
panic("ASN1_TAILQ_* back %p %s:%d", (elm), __FILE__, __LINE__);
#define QUEUEDEBUG_ASN1_TAILQ_PREREMOVE(head, elm, field) \
if ((elm)->field.tqe_next == NULL && \
(head)->tqh_last != &(elm)->field.tqe_next) \
panic("ASN1_TAILQ_PREREMOVE head %p elm %p %s:%d", \
(head), (elm), __FILE__, __LINE__);
#define QUEUEDEBUG_ASN1_TAILQ_POSTREMOVE(elm, field) \
(elm)->field.tqe_next = (void *)1L; \
(elm)->field.tqe_prev = (void *)1L;
#else
#define QUEUEDEBUG_ASN1_TAILQ_INSERT_HEAD(head, elm, field)
#define QUEUEDEBUG_ASN1_TAILQ_INSERT_TAIL(head, elm, field)
#define QUEUEDEBUG_ASN1_TAILQ_OP(elm, field)
#define QUEUEDEBUG_ASN1_TAILQ_PREREMOVE(head, elm, field)
#define QUEUEDEBUG_ASN1_TAILQ_POSTREMOVE(elm, field)
#endif
#define ASN1_TAILQ_INIT(head) do { \
(head)->tqh_first = NULL; \
(head)->tqh_last = &(head)->tqh_first; \
} while (0)
#define ASN1_TAILQ_INSERT_HEAD(head, elm, field) do { \
QUEUEDEBUG_ASN1_TAILQ_INSERT_HEAD((head), (elm), field) \
if (((elm)->field.tqe_next = (head)->tqh_first) != NULL) \
(head)->tqh_first->field.tqe_prev = \
&(elm)->field.tqe_next; \
else \
(head)->tqh_last = &(elm)->field.tqe_next; \
(head)->tqh_first = (elm); \
(elm)->field.tqe_prev = &(head)->tqh_first; \
} while (0)
#define ASN1_TAILQ_INSERT_TAIL(head, elm, field) do { \
QUEUEDEBUG_ASN1_TAILQ_INSERT_TAIL((head), (elm), field) \
(elm)->field.tqe_next = NULL; \
(elm)->field.tqe_prev = (head)->tqh_last; \
*(head)->tqh_last = (elm); \
(head)->tqh_last = &(elm)->field.tqe_next; \
} while (0)
#define ASN1_TAILQ_INSERT_AFTER(head, listelm, elm, field) do { \
QUEUEDEBUG_ASN1_TAILQ_OP((listelm), field) \
if (((elm)->field.tqe_next = (listelm)->field.tqe_next) != NULL)\
(elm)->field.tqe_next->field.tqe_prev = \
&(elm)->field.tqe_next; \
else \
(head)->tqh_last = &(elm)->field.tqe_next; \
(listelm)->field.tqe_next = (elm); \
(elm)->field.tqe_prev = &(listelm)->field.tqe_next; \
} while (0)
#define ASN1_TAILQ_INSERT_BEFORE(listelm, elm, field) do { \
QUEUEDEBUG_ASN1_TAILQ_OP((listelm), field) \
(elm)->field.tqe_prev = (listelm)->field.tqe_prev; \
(elm)->field.tqe_next = (listelm); \
*(listelm)->field.tqe_prev = (elm); \
(listelm)->field.tqe_prev = &(elm)->field.tqe_next; \
} while (0)
#define ASN1_TAILQ_REMOVE(head, elm, field) do { \
QUEUEDEBUG_ASN1_TAILQ_PREREMOVE((head), (elm), field) \
QUEUEDEBUG_ASN1_TAILQ_OP((elm), field) \
if (((elm)->field.tqe_next) != NULL) \
(elm)->field.tqe_next->field.tqe_prev = \
(elm)->field.tqe_prev; \
else \
(head)->tqh_last = (elm)->field.tqe_prev; \
*(elm)->field.tqe_prev = (elm)->field.tqe_next; \
QUEUEDEBUG_ASN1_TAILQ_POSTREMOVE((elm), field); \
} while (0)
#define ASN1_TAILQ_FOREACH(var, head, field) \
for ((var) = ((head)->tqh_first); \
(var); \
(var) = ((var)->field.tqe_next))
#define ASN1_TAILQ_FOREACH_REVERSE(var, head, headname, field) \
for ((var) = (*(((struct headname *)((head)->tqh_last))->tqh_last)); \
(var); \
(var) = (*(((struct headname *)((var)->field.tqe_prev))->tqh_last)))
#define ASN1_TAILQ_EMPTY(head) ((head)->tqh_first == NULL)
#define ASN1_TAILQ_FIRST(head) ((head)->tqh_first)
#define ASN1_TAILQ_NEXT(elm, field) ((elm)->field.tqe_next)
#define ASN1_TAILQ_LAST(head, headname) \
(*(((struct headname *)((head)->tqh_last))->tqh_last))
#define ASN1_TAILQ_PREV(elm, headname, field) \
(*(((struct headname *)((elm)->field.tqe_prev))->tqh_last))
#endif