diff --git a/tests/Makefile.am b/tests/Makefile.am
index 7b526d00..b1c3a944 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -20,6 +20,7 @@ noinst_PROGRAMS = test_system \
test_srcfd \
test_monitor \
test_router_mandatory \
+ test_router_mandatory_hwm \
test_router_handover \
test_probe_router \
test_stream \
@@ -96,6 +97,7 @@ test_term_endpoint_SOURCES = test_term_endpoint.cpp
test_srcfd_SOURCES = test_srcfd.cpp
test_monitor_SOURCES = test_monitor.cpp
test_router_mandatory_SOURCES = test_router_mandatory.cpp
+test_router_mandatory_hwm_SOURCES = test_router_mandatory_hwm.cpp
test_router_handover_SOURCES = test_router_handover.cpp
test_probe_router_SOURCES = test_probe_router.cpp
test_stream_SOURCES = test_stream.cpp
diff --git a/tests/test_router_mandatory_hwm.cpp b/tests/test_router_mandatory_hwm.cpp
new file mode 100644
index 00000000..69302d05
--- /dev/null
+++ b/tests/test_router_mandatory_hwm.cpp
@@ -0,0 +1,111 @@
+/*
+ Copyright (c) 2007-2014 Contributors as noted in the AUTHORS file
+
+ This file is part of 0MQ.
+
+ 0MQ is free software; you can redistribute it and/or modify it under
+ the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ 0MQ is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with this program. If not, see .
+*/
+
+#include
+#include "testutil.hpp"
+#include
+
+#define DEBUG 0
+
+int main (void)
+{
+ int rc;
+ if (DEBUG) fprintf(stderr, "Staring router mandatory HWM test ...\n");
+ setup_test_environment();
+ void *ctx = zmq_ctx_new ();
+ assert (ctx);
+ void *router = zmq_socket (ctx, ZMQ_ROUTER);
+ assert (router);
+
+ // Configure router socket to mandatory routing and set HWM and linger
+ int mandatory = 1;
+ rc = zmq_setsockopt (router, ZMQ_ROUTER_MANDATORY, &mandatory, sizeof (mandatory));
+ assert (rc == 0);
+ int sndhwm = 1;
+ rc = zmq_setsockopt (router, ZMQ_SNDHWM, &sndhwm, sizeof (sndhwm));
+ assert (rc == 0);
+ int linger = 1;
+ rc = zmq_setsockopt (router, ZMQ_LINGER, &linger, sizeof (linger));
+ assert (rc == 0);
+
+ rc = zmq_bind (router, "tcp://127.0.0.1:5560");
+ assert (rc == 0);
+
+ // Create dealer called "X" and connect it to our router, configure HWM
+ void *dealer = zmq_socket (ctx, ZMQ_DEALER);
+ assert (dealer);
+ rc = zmq_setsockopt (dealer, ZMQ_IDENTITY, "X", 1);
+ assert (rc == 0);
+ int rcvhwm = 1;
+ rc = zmq_setsockopt (dealer, ZMQ_RCVHWM, &rcvhwm, sizeof (rcvhwm));
+ assert (rc == 0);
+
+ rc = zmq_connect (dealer, "tcp://127.0.0.1:5560");
+ assert (rc == 0);
+
+ // Get message from dealer to know when connection is ready
+ char buffer [255];
+ rc = zmq_send (dealer, "Hello", 5, 0);
+ assert (rc == 5);
+ rc = zmq_recv (router, buffer, 255, 0);
+ assert (rc == 1);
+ assert (buffer [0] == 'X');
+
+ int i;
+ const int BUF_SIZE = 65536;
+ char buf[BUF_SIZE];
+ // Send first batch of messages
+ for(i = 0; i < 100000; ++i) {
+ if (DEBUG) fprintf(stderr, "Sending message %d ...\n", i);
+ rc = zmq_send (router, "X", 1, ZMQ_DONTWAIT | ZMQ_SNDMORE);
+ if (rc == -1 && zmq_errno() == EAGAIN) break;
+ assert (rc == 1);
+ rc = zmq_send (router, buf, BUF_SIZE, ZMQ_DONTWAIT);
+ assert (rc == BUF_SIZE);
+ }
+ // This should fail after one message but kernel buffering could
+ // skew results
+ assert (i < 10);
+ sleep(1);
+ // Send second batch of messages
+ for(; i < 100000; ++i) {
+ if (DEBUG) fprintf(stderr, "Sending message %d (part 2) ...\n", i);
+ rc = zmq_send (router, "X", 1, ZMQ_DONTWAIT | ZMQ_SNDMORE);
+ if (rc == -1 && zmq_errno() == EAGAIN) break;
+ assert (rc == 1);
+ rc = zmq_send (router, buf, BUF_SIZE, ZMQ_DONTWAIT);
+ assert (rc == BUF_SIZE);
+ }
+ // This should fail after two messages but kernel buffering could
+ // skew results
+ assert (i < 20);
+
+ if (DEBUG) fprintf(stderr, "Done sending messages.\n");
+
+ rc = zmq_close (router);
+ assert (rc == 0);
+
+ rc = zmq_close (dealer);
+ assert (rc == 0);
+
+ rc = zmq_ctx_term (ctx);
+ assert (rc == 0);
+
+ return 0 ;
+}