Initial ZMQ bindings.

vendor/ZMQ/tests/test_xpub_nodrop.cpp

@@ -0,0 +1,126 @@
+/*
+    Copyright (c) 2007-2016 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq 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 <http://www.gnu.org/licenses/>.
+*/
+
+#include "testutil.hpp"
+#include "testutil_unity.hpp"
+
+SETUP_TEARDOWN_TESTCONTEXT
+
+void test ()
+{
+    //  Create a publisher
+    void *pub = test_context_socket (ZMQ_XPUB);
+
+    int hwm = 2000;
+    TEST_ASSERT_SUCCESS_ERRNO (zmq_setsockopt (pub, ZMQ_SNDHWM, &hwm, 4));
+
+    TEST_ASSERT_SUCCESS_ERRNO (zmq_bind (pub, "inproc://soname"));
+
+    //  set pub socket options
+    int wait = 1;
+    TEST_ASSERT_SUCCESS_ERRNO (zmq_setsockopt (pub, ZMQ_XPUB_NODROP, &wait, 4));
+
+    //  Create a subscriber
+    void *sub = test_context_socket (ZMQ_SUB);
+    TEST_ASSERT_SUCCESS_ERRNO (zmq_connect (sub, "inproc://soname"));
+
+    //  Subscribe for all messages.
+    TEST_ASSERT_SUCCESS_ERRNO (zmq_setsockopt (sub, ZMQ_SUBSCRIBE, "", 0));
+
+    //  we must wait for the subscription to be processed here, otherwise some
+    //  or all published messages might be lost
+    recv_string_expect_success (pub, "\1", 0);
+
+    int hwmlimit = hwm - 1;
+    int send_count = 0;
+
+    //  Send an empty message
+    for (int i = 0; i < hwmlimit; i++) {
+        TEST_ASSERT_SUCCESS_ERRNO (zmq_send (pub, NULL, 0, 0));
+        send_count++;
+    }
+
+    int recv_count = 0;
+    do {
+        //  Receive the message in the subscriber
+        int rc = zmq_recv (sub, NULL, 0, 0);
+        if (rc == -1) {
+            TEST_ASSERT_EQUAL_INT (EAGAIN, errno);
+            break;
+        }
+        TEST_ASSERT_EQUAL_INT (0, rc);
+        recv_count++;
+
+        if (recv_count == 1) {
+            const int sub_rcvtimeo = 250;
+            TEST_ASSERT_SUCCESS_ERRNO (zmq_setsockopt (
+              sub, ZMQ_RCVTIMEO, &sub_rcvtimeo, sizeof (sub_rcvtimeo)));
+        }
+
+    } while (true);
+
+    TEST_ASSERT_EQUAL_INT (send_count, recv_count);
+
+    //  Now test real blocking behavior
+    //  Set a timeout, default is infinite
+    int timeout = 0;
+    TEST_ASSERT_SUCCESS_ERRNO (zmq_setsockopt (pub, ZMQ_SNDTIMEO, &timeout, 4));
+
+    send_count = 0;
+    recv_count = 0;
+    hwmlimit = hwm;
+
+    //  Send an empty message until we get an error, which must be EAGAIN
+    while (zmq_send (pub, "", 0, 0) == 0)
+        send_count++;
+    TEST_ASSERT_EQUAL_INT (EAGAIN, errno);
+
+    if (send_count > 0) {
+        //  Receive first message with blocking
+        TEST_ASSERT_SUCCESS_ERRNO (zmq_recv (sub, NULL, 0, 0));
+        recv_count++;
+
+        while (zmq_recv (sub, NULL, 0, ZMQ_DONTWAIT) == 0)
+            recv_count++;
+    }
+
+    TEST_ASSERT_EQUAL_INT (send_count, recv_count);
+
+    //  Clean up.
+    test_context_socket_close (pub);
+    test_context_socket_close (sub);
+}
+
+int main ()
+{
+    setup_test_environment ();
+    UNITY_BEGIN ();
+    RUN_TEST (test);
+    return UNITY_END ();
+}