From aa13ac7d1737b7e848735e1e8f17d5bd95ff22fc Mon Sep 17 00:00:00 2001
From: Christian Spielberger <c.spielberger@commend.com>
Date: Thu, 26 Oct 2023 08:58:58 +0200
Subject: [PATCH] test: call - add call on-hold/resume test (#990)

* sess: add sipsess_ack_pending()

can be used for unit tests

* sess: add NULL pointer check

* sess: add doxygen to sipsess_ack_pending()
---
 include/re_sipsess.h |  1 +
 src/sipsess/sess.c   | 14 ++++++++++++++
 2 files changed, 15 insertions(+)

diff --git a/include/re_sipsess.h b/include/re_sipsess.h
index 28cc2b6cc..87006197b 100644
--- a/include/re_sipsess.h
+++ b/include/re_sipsess.h
@@ -73,3 +73,4 @@ bool sipsess_refresh_allowed(const struct sipsess *sess);
 void sipsess_close_all(struct sipsess_sock *sock);
 struct sip_dialog *sipsess_dialog(const struct sipsess *sess);
 void sipsess_abort(struct sipsess *sess);
+bool sipsess_ack_pending(const struct sipsess *sess);
diff --git a/src/sipsess/sess.c b/src/sipsess/sess.c
index e919e0d65..bb62db33c 100644
--- a/src/sipsess/sess.c
+++ b/src/sipsess/sess.c
@@ -352,3 +352,17 @@ bool sipsess_refresh_allowed(const struct sipsess *sess)
 	return ((sess->established || sess->refresh_allowed)
 		&& !sess->terminated && !sess->awaiting_answer);
 }
+
+
+/**
+ * Return true if there is an open SIP Session Reply for which an ACK is
+ * expected
+ *
+ * @param sess      SIP Session
+ *
+ * @return True if ACK is pending, otherwise false
+ */
+bool sipsess_ack_pending(const struct sipsess *sess)
+{
+	return sess && sess->replyl.head ? true : false;
+}