From 1fa9564916ea9cd92622b5a549693d23fbf35bcb Mon Sep 17 00:00:00 2001 From: Lukas Fleischer Date: Tue, 4 Oct 2011 09:34:06 +0200 Subject: src/llist.c: Add llist_next_filter() This convenience function can be used to return the successor of a list item if it is matched by a filter callback and return NULL otherwise. We will use this for an improved version of the LLIST_FIND_FOREACH macro that can be used whenever results are known to be continuous. Signed-off-by: Lukas Fleischer --- src/llist.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'src/llist.c') diff --git a/src/llist.c b/src/llist.c index 7611595..a85cfa9 100644 --- a/src/llist.c +++ b/src/llist.c @@ -114,6 +114,19 @@ llist_next (llist_item_t *i) return i ? i->next : NULL; } +/* + * Return the successor of a list item if it is matched by some filter + * callback. Return NULL otherwise. + */ +llist_item_t * +llist_next_filter (llist_item_t *i, long data, llist_fn_match_t fn_match) +{ + if (i && i->next && fn_match (i->next->data, data)) + return i->next; + else + return NULL; +} + /* * Get the actual data of an item. */ -- cgit v1.2.3-54-g00ecf