From 1a2022fedc0e738d01477bbc2fdef5aef7c7a178 Mon Sep 17 00:00:00 2001
From: Luca Boccassi <bluca@debian.org>
Date: Fri, 15 May 2020 17:07:48 +0100
Subject: [PATCH] Problem: unfinished message can be leaked by client pipe

When a pipe processes a delimiter and is already not in active state but still
has an unfinished message, the message is leaked.

Solution: issue a rollback before losing the reference to the pipe.
(cherry picked from commit 6815138501b9f2a69e807bc3527d93583e633233)

Conflicts:
	src/pipe.cpp
---
 src/pipe.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/pipe.cpp b/src/pipe.cpp
index e588215e..37935c7a 100644
--- a/src/pipe.cpp
+++ b/src/pipe.cpp
@@ -470,6 +470,7 @@ void zmq::pipe_t::process_delimiter ()
     if (state == active)
         state = delimiter_received;
     else {
+        rollback ();
         outpipe = NULL;
         send_pipe_term_ack (peer);
         state = term_ack_sent;