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Diffstat (limited to '')
| -rw-r--r-- | include/haproxy/list.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/haproxy/list.h b/include/haproxy/list.h index 368e6d7..b922bc1 100644 --- a/include/haproxy/list.h +++ b/include/haproxy/list.h @@ -106,6 +106,13 @@ */ #define LIST_INLIST(el) ((el)->n != (el)) +/* checks if the list element <el> has the same prev and next, i.e. it's either + * detached or alone in a list since (it points to itself or to a single other + * node). One can check that an element is strictly attached and alone by + * combining this with LIST_INLIST(). + */ +#define LIST_ATMOST1(el) ((el)->n == (el)->p) + /* atomically checks if the list element's next pointer points to anything * different from itself, implying the element should be part of a list. This * usually is similar to LIST_INLIST() except that while that one might be |