ringbuffer, guid, iovec stuff, and mmio

2026-10-14 23:26:30 +02:00
parent 4c781f31ad
commit d7857f18cd
13 changed files with 701 additions and 12 deletions
@@ -42,6 +42,14 @@
        (elm)->field.tql_prev = &(head)->tqh_first; \
    } while (0)

+#define tailq_insert_before(listelm, elm, field) \
+    do { \
+        (elm)->field.tql_prev = (listelm)->field.tql_prev; \
+        (elm)->field.tql_next = (listelm); \
+        *(listelm)->field.tql_prev = (elm); \
+        (listelm)->field.tql_prev = &(elm)->field.tql_next; \
+    } while (0)
+
 #define tailq_remove(head, elm, field) \
    do { \
        if (((elm)->field.tql_next) != nullptr) \