From f91995f19373b2bba78703310691e1ad68ee1eec Mon Sep 17 00:00:00 2001 From: Michael Brown Date: Fri, 4 May 2012 15:12:22 +0100 Subject: [list] Add list_for_each_entry_continue() and _continue_reverse() Signed-off-by: Michael Brown --- src/include/ipxe/list.h | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) (limited to 'src/include') diff --git a/src/include/ipxe/list.h b/src/include/ipxe/list.h index 231383d19..4daf12b2e 100644 --- a/src/include/ipxe/list.h +++ b/src/include/ipxe/list.h @@ -378,6 +378,32 @@ static inline void list_splice_tail_init ( struct list_head *list, pos = tmp, \ tmp = list_entry ( tmp->member.next, typeof ( *tmp ), member ) ) +/** + * Iterate over entries in a list, starting after current position + * + * @v pos Iterator + * @v head List head + * @v member Name of list field within iterator's type + */ +#define list_for_each_entry_continue( pos, head, member ) \ + for ( list_check ( (head) ), \ + pos = list_entry ( pos->member.next, typeof ( *pos ), member ); \ + &pos->member != (head); \ + pos = list_entry ( pos->member.next, typeof ( *pos ), member ) ) + +/** + * Iterate over entries in a list in reverse, starting after current position + * + * @v pos Iterator + * @v head List head + * @v member Name of list field within iterator's type + */ +#define list_for_each_entry_continue_reverse( pos, head, member ) \ + for ( list_check ( (head) ), \ + pos = list_entry ( pos->member.prev, typeof ( *pos ), member ); \ + &pos->member != (head); \ + pos = list_entry ( pos->member.prev, typeof ( *pos ), member ) ) + /** * Test if list contains a specified entry * -- cgit v1.2.3-55-g7522