diff options
| -rw-r--r-- | sys/sys/queue.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/sys/sys/queue.h b/sys/sys/queue.h index 3d86d0c..a7b2d89 100644 --- a/sys/sys/queue.h +++ b/sys/sys/queue.h @@ -97,6 +97,7 @@ * _INSERT_BEFORE - + - + * _INSERT_AFTER + + + + * _INSERT_TAIL - - + + + * _CONCAT - - + + * _REMOVE_HEAD + - + - * _REMOVE + + + + * @@ -183,6 +184,14 @@ struct { \ /* * Singly-linked Tail queue functions. */ +#define STAILQ_CONCAT(head1, head2) do { \ + if (!STAILQ_EMPTY((head2))) { \ + *(head1)->stqh_last = (head2)->stqh_first; \ + (head1)->stqh_last = (head2)->stqh_last; \ + STAILQ_INIT((head2)); \ + } \ +} while (0) + #define STAILQ_EMPTY(head) ((head)->stqh_first == NULL) #define STAILQ_FIRST(head) ((head)->stqh_first) @@ -334,6 +343,15 @@ struct { \ /* * Tail queue functions. */ +#define TAILQ_CONCAT(head1, head2, field) do { \ + if (!TAILQ_EMPTY(head2)) { \ + *(head1)->tqh_last = (head2)->tqh_first; \ + (head2)->tqh_first->field.tqe_prev = (head1)->tqh_last; \ + (head1)->tqh_last = (head2)->tqh_last; \ + TAILQ_INIT((head2)); \ + } \ +} while (0) + #define TAILQ_EMPTY(head) ((head)->tqh_first == NULL) #define TAILQ_FIRST(head) ((head)->tqh_first) |
