From 38b205d0a4d7c29f7ba32f3f96e4ded9790d0af2 Mon Sep 17 00:00:00 2001 From: Michael Brown Date: Fri, 14 Oct 2011 13:35:05 +0100 Subject: [list] Tidy up naming convention for list_contains() and friends Signed-off-by: Michael Brown --- src/include/ipxe/list.h | 56 ++++++++++++++++++++++++++++++++++++++++--------- 1 file changed, 46 insertions(+), 10 deletions(-) (limited to 'src/include') diff --git a/src/include/ipxe/list.h b/src/include/ipxe/list.h index 4905aaa3a..8dc74139d 100644 --- a/src/include/ipxe/list.h +++ b/src/include/ipxe/list.h @@ -170,6 +170,18 @@ static inline int list_empty ( const struct list_head *list ) { ( type * ) NULL : \ list_entry ( (list)->next, type, member ) ) +/** + * Iterate over a list + * + * @v pos Iterator + * @v head List head + */ +#define list_for_each( pos, head ) \ + for ( list_check ( (head) ), \ + pos = (head)->next; \ + pos != (head); \ + pos = (pos)->next ) + /** * Iterate over entries in a list * @@ -212,6 +224,38 @@ static inline int list_empty ( const struct list_head *list ) { pos = tmp, \ tmp = list_entry ( tmp->member.next, typeof ( *tmp ), member ) ) +/** + * Test if list contains a specified entry + * + * @v entry Entry + * @v head List head + * @ret present List contains specified entry + */ +static inline int list_contains ( struct list_head *entry, + struct list_head *head ) { + struct list_head *tmp; + + list_for_each ( tmp, head ) { + if ( tmp == entry ) + return 1; + } + return 0; +} +#define list_contains( entry, head ) ( { \ + list_check ( (head) ); \ + list_check ( (entry) ); \ + list_contains ( (entry), (head) ); } ) + +/** + * Test if list contains a specified entry + * + * @v entry Entry + * @v head List head + * @ret present List contains specified entry + */ +#define list_contains_entry( entry, head, member ) \ + list_contains ( &(entry)->member, (head) ) + /** * Check list contains a specified entry * @@ -219,16 +263,8 @@ static inline int list_empty ( const struct list_head *list ) { * @v head List head * @v member Name of list field within iterator's type */ -#define list_check_contains( entry, head, member ) do { \ - if ( ASSERTING ) { \ - typeof ( entry ) tmp; \ - int found = 0; \ - list_for_each_entry ( tmp, head, member ) { \ - if ( tmp == entry ) \ - found = 1; \ - } \ - assert ( found ); \ - } \ +#define list_check_contains_entry( entry, head, member ) do { \ + assert ( list_contains_entry ( (entry), (head), member ) ); \ } while ( 0 ) #endif /* _IPXE_LIST_H */ -- cgit v1.2.3-55-g7522