From 97d23728cfc392fe5f2c33831f4c85aa31d083fc Mon Sep 17 00:00:00 2001
From: Michael Adam <obnox@samba.org>
Date: Tue, 16 Aug 2016 11:00:50 +0200
Subject: swrap: Add SWRAP_DLIST_ADD_AFTER macro

Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>

Signed-off-by: Michael Adam <obnox@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
---
 src/socket_wrapper.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/socket_wrapper.c b/src/socket_wrapper.c
index 5cb494c..2a88dff 100644
--- a/src/socket_wrapper.c
+++ b/src/socket_wrapper.c
@@ -184,6 +184,20 @@ enum swrap_dbglvl_e {
 	(item)->next	= NULL; \
 } while (0)
 
+#define SWRAP_DLIST_ADD_AFTER(list, item, el) \
+do { \
+	if ((list) != NULL || (el) != NULL) { \
+		SWRAP_DLIST_ADD(list, item); \
+	} else { \
+		(item)->prev = (el); \
+		(item)->next = (el)->next; \
+		(el)->next = (item); \
+		if ((item)->next != NULL) { \
+			(item)->next->prev = (item); \
+		} \
+	} \
+} while (0)
+
 #if defined(HAVE_GETTIMEOFDAY_TZ) || defined(HAVE_GETTIMEOFDAY_TZ_VOID)
 #define swrapGetTimeOfDay(tval) gettimeofday(tval,NULL)
 #else
-- 
cgit