svn commit: r361997 - head/sys/sys
Doug Moore
dougm at FreeBSD.org
Wed Jun 10 02:50:26 UTC 2020
Author: dougm
Date: Wed Jun 10 02:50:25 2020
New Revision: 361997
URL: https://svnweb.freebsd.org/changeset/base/361997
Log:
Restore an RB_COLOR macro, for the benefit of a bit of DIAGNOSTIC code
that depends on it.
Reported by: rpokala, mjguzik
Reviewed by: markj
Differential Revision: https://reviews.freebsd.org/D25204
Modified:
head/sys/sys/tree.h
Modified: head/sys/sys/tree.h
==============================================================================
--- head/sys/sys/tree.h Wed Jun 10 01:32:13 2020 (r361996)
+++ head/sys/sys/tree.h Wed Jun 10 02:50:25 2020 (r361997)
@@ -333,6 +333,12 @@ struct { \
#define RB_TRUE 1
#define RB_FALSE 0
+/* For debugging support */
+#define RB_COLOR(elm, field) (RB_PARENT(elm, field) == NULL ? RB_FALSE : \
+ RB_LEFT(RB_PARENT(elm, field), field) == elm ? \
+ RB_RED_LF(RB_PARENT(elm, field), field) : \
+ RB_RED_RT(RB_PARENT(elm, field), field)
+
/*
* Something to be invoked in a loop at the root of every modified subtree,
* from the bottom up to the root, to update augmented node data.
More information about the svn-src-all
mailing list