diff options
| author | Matthew Dempsky <matthew@cvs.openbsd.org> | 2011-07-03 16:08:41 +0000 |
|---|---|---|
| committer | Matthew Dempsky <matthew@cvs.openbsd.org> | 2011-07-03 16:08:41 +0000 |
| commit | fb4a823d92ba09457cf76befa7f6ea5387b4c6d3 (patch) | |
| tree | ff150111c73a0d29ffd282da6dec0eb3fcc3c567 /sys | |
| parent | cf51fdce33cceb21f045884bd8ac674d82bb7fa5 (diff) | |
Add a SIMPLEQ_REMOVE_NEXT() macro analogous to SLIST_REMOVE_NEXT().
ok krw@
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/sys/queue.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/sys/sys/queue.h b/sys/sys/queue.h index 38130e08152..7f961edaa28 100644 --- a/sys/sys/queue.h +++ b/sys/sys/queue.h @@ -1,4 +1,4 @@ -/* $OpenBSD: queue.h,v 1.32 2007/04/30 18:42:34 pedro Exp $ */ +/* $OpenBSD: queue.h,v 1.33 2011/07/03 16:08:40 matthew Exp $ */ /* $NetBSD: queue.h,v 1.11 1996/05/16 05:17:14 mycroft Exp $ */ /* @@ -300,6 +300,12 @@ struct { \ (head)->sqh_last = &(head)->sqh_first; \ } while (0) +#define SIMPLEQ_REMOVE_NEXT(head, elm, field) do { \ + if (((elm)->field.sqe_next = (elm)->field.sqe_next->field.sqe_next) \ + == NULL) \ + (head)->sqh_last = &(elm)->field.sqe_next; \ +} while (0) + /* * Tail queue definitions. */ |