1 files changed, 43 insertions, 0 deletions
diff --git a/src/pipe.cpp b/src/pipe.cpp
index 48fc3e5..fd7223c 100644
--- a/src/pipe.cpp
+++ b/src/pipe.cpp
@@ -205,6 +205,29 @@ void zmq::pipe_t::process_activate_write (uint64_t msgs_read_)
     }
 }
 
+void zmq::pipe_t::process_hiccup (void *pipe_)
+{
+    //  Destroy old outpipe. Note that the read end of the pipe was already
+    //  migrated to this thread.
+    zmq_assert (outpipe);
+    outpipe->flush ();
+    msg_t msg;
+    while (outpipe->read (&msg)) {
+       int rc = msg.close ();
+       errno_assert (rc == 0);
+    }
+    delete outpipe;
+
+    //  Plug in the new outpipe.
+    zmq_assert (pipe_);
+    outpipe = (upipe_t*) pipe_;
+    out_active = true;
+
+    //  If appropriate, notify the user about the hiccup.
+    if (state == active)
+        sink->hiccuped (this);
+}
+
 void zmq::pipe_t::process_pipe_term ()
 {
     //  This is the simple case of peer-induced termination. If there are no
@@ -379,3 +402,23 @@ void zmq::pipe_t::delimit ()
     //  Delimiter in any other state is invalid.
     zmq_assert (false);
 }
+
+void zmq::pipe_t::hiccup ()
+{
+    //  If termination is already under way do nothing.
+    if (state != active)
+        return;
+
+    //  We'll drop the pointer to the inpipe. From now on, the peer is
+    //  responsible for deallocating it.
+    inpipe = NULL;
+
+    //  Create new inpipe.
+    inpipe = new (std::nothrow) pipe_t::upipe_t ();
+    alloc_assert (inpipe);
+    in_active = true;
+
+    //  Notify the peer about the hiccup.
+    send_hiccup (peer, (void*) inpipe);
+}
+