From: Uwe Hermann <redacted>
Date: Mon, 24 Nov 2014 00:11:17 +0000 (+0100)
Subject: bindings: Session::set_trigger(): Fix segfault condition.
X-Git-Tag: libsigrok-0.4.0~711
X-Git-Url: https://sigrok.org/gitaction?a=commitdiff_plain;h=e835e8080b6278137ea90f3b10e5d8bc51136a91;p=libsigrok.git

bindings: Session::set_trigger(): Fix segfault condition.

sr_session_trigger_set(sess, NULL) is a valid thing to do, meaning that
any trigger shall be removed from the session.

This closes bugs #491 and #496.
---

diff --git a/bindings/cxx/classes.cpp b/bindings/cxx/classes.cpp
index da21086c..efb4995d 100644
--- a/bindings/cxx/classes.cpp
+++ b/bindings/cxx/classes.cpp
@@ -1138,7 +1138,11 @@ shared_ptr<Trigger> Session::trigger()
 
 void Session::set_trigger(shared_ptr<Trigger> trigger)
 {
-	check(sr_session_trigger_set(_structure, trigger->_structure));
+	if (!trigger)
+		// Set NULL trigger, i.e. remove any trigger from the session.
+		check(sr_session_trigger_set(_structure, NULL));
+	else
+		check(sr_session_trigger_set(_structure, trigger->_structure));
 	_trigger = trigger;
 }