diff options
Diffstat (limited to 'src/include/gpxe/list.h')
| -rw-r--r-- | src/include/gpxe/list.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/include/gpxe/list.h b/src/include/gpxe/list.h index 0e65901c..602382be 100644 --- a/src/include/gpxe/list.h +++ b/src/include/gpxe/list.h @@ -10,6 +10,7 @@ */ #include <stddef.h> +#include <assert.h> /* * Simple doubly linked list implementation. @@ -62,6 +63,11 @@ static inline void __list_add ( struct list_head *new, static inline void list_add ( struct list_head *new, struct list_head *head ) { __list_add ( new, head, head->next ); } +#define list_add( new, head ) do { \ + assert ( (head)->next->prev == (head) ); \ + assert ( (head)->prev->next == (head) ); \ + list_add ( (new), (head) ); \ + } while ( 0 ) /** * Add a new entry to the tail of a list @@ -76,6 +82,11 @@ static inline void list_add_tail ( struct list_head *new, struct list_head *head ) { __list_add ( new, head->prev, head ); } +#define list_add_tail( new, head ) do { \ + assert ( (head)->next->prev == (head) ); \ + assert ( (head)->prev->next == (head) ); \ + list_add_tail ( (new), (head) ); \ + } while ( 0 ) /* * Delete a list entry by making the prev/next entries @@ -101,6 +112,13 @@ static inline void __list_del ( struct list_head * prev, static inline void list_del ( struct list_head *entry ) { __list_del ( entry->prev, entry->next ); } +#define list_del( entry ) do { \ + assert ( (entry)->prev != NULL ); \ + assert ( (entry)->next != NULL ); \ + assert ( (entry)->next->prev == (entry) ); \ + assert ( (entry)->prev->next == (entry) ); \ + list_del ( (entry) ); \ + } while ( 0 ) /** * Test whether a list is empty |