Squashed 'libs/libzmq/' content from commit 2b2fb9c7

git-subtree-dir: libs/libzmq git-subtree-split: 2b2fb9c7082dbc16c1323b97040a4edcfa2b997b
2022-10-22 14:31:55 +02:00
commit e988fee167
1118 changed files with 149390 additions and 0 deletions
--- a/tests/test_router_mandatory_hwm.cpp
+++ b/tests/test_router_mandatory_hwm.cpp
@@ -0,0 +1,120 @@
+/*
+    Copyright (c) 2007-2017 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
+
+// DEBUG shouldn't be defined in sources as it will cause a redefined symbol
+// error when it is defined in the build configuration. It appears that the
+// intent here is to semi-permanently disable DEBUG tracing statements, so the
+// implementation is changed to accommodate that intent.
+//#define DEBUG 0
+#define TRACE_ENABLED 0
+
+void test_router_mandatory_hwm ()
+{
+    if (TRACE_ENABLED)
+        fprintf (stderr, "Staring router mandatory HWM test ...\n");
+    char my_endpoint[MAX_SOCKET_STRING];
+    void *router = test_context_socket (ZMQ_ROUTER);
+
+    // Configure router socket to mandatory routing and set HWM and linger
+    int mandatory = 1;
+    TEST_ASSERT_SUCCESS_ERRNO (zmq_setsockopt (router, ZMQ_ROUTER_MANDATORY,
+                                               &mandatory, sizeof (mandatory)));
+    int sndhwm = 1;
+    TEST_ASSERT_SUCCESS_ERRNO (
+      zmq_setsockopt (router, ZMQ_SNDHWM, &sndhwm, sizeof (sndhwm)));
+    int linger = 1;
+    TEST_ASSERT_SUCCESS_ERRNO (
+      zmq_setsockopt (router, ZMQ_LINGER, &linger, sizeof (linger)));
+
+    bind_loopback_ipv4 (router, my_endpoint, sizeof my_endpoint);
+
+    //  Create dealer called "X" and connect it to our router, configure HWM
+    void *dealer = test_context_socket (ZMQ_DEALER);
+    TEST_ASSERT_SUCCESS_ERRNO (zmq_setsockopt (dealer, ZMQ_ROUTING_ID, "X", 1));
+    int rcvhwm = 1;
+    TEST_ASSERT_SUCCESS_ERRNO (
+      zmq_setsockopt (dealer, ZMQ_RCVHWM, &rcvhwm, sizeof (rcvhwm)));
+
+    TEST_ASSERT_SUCCESS_ERRNO (zmq_connect (dealer, my_endpoint));
+
+    //  Get message from dealer to know when connection is ready
+    send_string_expect_success (dealer, "Hello", 0);
+    recv_string_expect_success (router, "X", 0);
+
+    int i;
+    const int buf_size = 65536;
+    const uint8_t buf[buf_size] = {0};
+    // Send first batch of messages
+    for (i = 0; i < 100000; ++i) {
+        if (TRACE_ENABLED)
+            fprintf (stderr, "Sending message %d ...\n", i);
+        const int rc = zmq_send (router, "X", 1, ZMQ_DONTWAIT | ZMQ_SNDMORE);
+        if (rc == -1 && zmq_errno () == EAGAIN)
+            break;
+        TEST_ASSERT_EQUAL_INT (1, rc);
+        send_array_expect_success (router, buf, ZMQ_DONTWAIT);
+    }
+    // This should fail after one message but kernel buffering could
+    // skew results
+    TEST_ASSERT_LESS_THAN_INT (10, i);
+    msleep (1000);
+    // Send second batch of messages
+    for (; i < 100000; ++i) {
+        if (TRACE_ENABLED)
+            fprintf (stderr, "Sending message %d (part 2) ...\n", i);
+        const int rc = zmq_send (router, "X", 1, ZMQ_DONTWAIT | ZMQ_SNDMORE);
+        if (rc == -1 && zmq_errno () == EAGAIN)
+            break;
+        TEST_ASSERT_EQUAL_INT (1, rc);
+        send_array_expect_success (router, buf, ZMQ_DONTWAIT);
+    }
+    // This should fail after two messages but kernel buffering could
+    // skew results
+    TEST_ASSERT_LESS_THAN_INT (20, i);
+
+    if (TRACE_ENABLED)
+        fprintf (stderr, "Done sending messages.\n");
+
+    test_context_socket_close (router);
+    test_context_socket_close (dealer);
+}
+
+int main ()
+{
+    setup_test_environment ();
+
+    UNITY_BEGIN ();
+    RUN_TEST (test_router_mandatory_hwm);
+    return UNITY_END ();
+}