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[list] Add list_for_each_entry_continue() and _continue_reverse()

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Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2012-05-04 15:12:22 +01:00
parent 69fa29029c
commit f91995f193
2 changed files with 103 additions and 14 deletions
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26
src/include/ipxe/list.h
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@@ -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
*