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| author | Sebastien Bacher <seb128@ubuntu.com> | 2021-01-11 17:41:24 +0100 |
|---|---|---|
| committer | Sebastien Bacher <seb128@ubuntu.com> | 2021-01-11 17:41:24 +0100 |
| commit | a82e048a943092315a32d745c99e0f5635e29134 (patch) | |
| tree | e2daea99a161768c9b956bfea9117289deaf31be /shared/systemd/src/basic/list.h | |
| parent | b51f06ff71a2060925bf3c0f04c44bd12480e670 (diff) | |
| parent | 65f86e8f56267192d42f2b629fc6b0c99fb9cd0c (diff) | |
Merge branch 'upstream/latest' of https://salsa.debian.org/utopia-team/network-manager into upstream/latest
Diffstat (limited to 'shared/systemd/src/basic/list.h')
| -rw-r--r-- | shared/systemd/src/basic/list.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/shared/systemd/src/basic/list.h b/shared/systemd/src/basic/list.h index f7f97000..b62c3749 100644 --- a/shared/systemd/src/basic/list.h +++ b/shared/systemd/src/basic/list.h @@ -169,3 +169,18 @@ #define LIST_IS_EMPTY(head) \ (!(head)) + +/* Join two lists tail to head: a->b, c->d to a->b->c->d and de-initialise second list */ +#define LIST_JOIN(name,a,b) \ + do { \ + assert(b); \ + if (!(a)) \ + (a) = (b); \ + else { \ + typeof(*(a)) *_head = (b), *_tail; \ + LIST_FIND_TAIL(name, (a), _tail); \ + _tail->name##_next = _head; \ + _head->name##_prev = _tail; \ + } \ + (b) = NULL; \ + } while (false) |