ngx_rbt_is_black  259 core/ngx_rbtree.c     while (temp != *root && ngx_rbt_is_black(temp)) {
ngx_rbt_is_black  271 core/ngx_rbtree.c             if (ngx_rbt_is_black(w->left) && ngx_rbt_is_black(w->right)) {
ngx_rbt_is_black  276 core/ngx_rbtree.c                 if (ngx_rbt_is_black(w->right)) {
ngx_rbt_is_black  300 core/ngx_rbtree.c             if (ngx_rbt_is_black(w->left) && ngx_rbt_is_black(w->right)) {
ngx_rbt_is_black  305 core/ngx_rbtree.c                 if (ngx_rbt_is_black(w->left)) {