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da31917f4f
Relicense permission collected from all relevant authors as tallied at: https://github.com/rlenferink/libzmq-relicense/blob/master/checklist.md The relicense grants are collected under RELICENSE/ and will be moved to the above repository in a later commit. Fixes https://github.com/zeromq/libzmq/issues/2376
100 lines
2.6 KiB
C++
100 lines
2.6 KiB
C++
/* SPDX-License-Identifier: MPL-2.0 */
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#include "testutil.hpp"
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#include "testutil_unity.hpp"
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SETUP_TEARDOWN_TESTCONTEXT
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void test ()
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{
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// Create a publisher
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void *pub = test_context_socket (ZMQ_XPUB);
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int hwm = 2000;
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TEST_ASSERT_SUCCESS_ERRNO (zmq_setsockopt (pub, ZMQ_SNDHWM, &hwm, 4));
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TEST_ASSERT_SUCCESS_ERRNO (zmq_bind (pub, "inproc://soname"));
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// set pub socket options
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int wait = 1;
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TEST_ASSERT_SUCCESS_ERRNO (zmq_setsockopt (pub, ZMQ_XPUB_NODROP, &wait, 4));
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// Create a subscriber
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void *sub = test_context_socket (ZMQ_SUB);
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TEST_ASSERT_SUCCESS_ERRNO (zmq_connect (sub, "inproc://soname"));
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// Subscribe for all messages.
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TEST_ASSERT_SUCCESS_ERRNO (zmq_setsockopt (sub, ZMQ_SUBSCRIBE, "", 0));
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// we must wait for the subscription to be processed here, otherwise some
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// or all published messages might be lost
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recv_string_expect_success (pub, "\1", 0);
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int hwmlimit = hwm - 1;
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int send_count = 0;
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// Send an empty message
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for (int i = 0; i < hwmlimit; i++) {
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TEST_ASSERT_SUCCESS_ERRNO (zmq_send (pub, NULL, 0, 0));
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send_count++;
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}
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int recv_count = 0;
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do {
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// Receive the message in the subscriber
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int rc = zmq_recv (sub, NULL, 0, 0);
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if (rc == -1) {
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TEST_ASSERT_EQUAL_INT (EAGAIN, errno);
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break;
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}
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TEST_ASSERT_EQUAL_INT (0, rc);
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recv_count++;
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if (recv_count == 1) {
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const int sub_rcvtimeo = 250;
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TEST_ASSERT_SUCCESS_ERRNO (zmq_setsockopt (
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sub, ZMQ_RCVTIMEO, &sub_rcvtimeo, sizeof (sub_rcvtimeo)));
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}
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} while (true);
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TEST_ASSERT_EQUAL_INT (send_count, recv_count);
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// Now test real blocking behavior
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// Set a timeout, default is infinite
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int timeout = 0;
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TEST_ASSERT_SUCCESS_ERRNO (zmq_setsockopt (pub, ZMQ_SNDTIMEO, &timeout, 4));
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send_count = 0;
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recv_count = 0;
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hwmlimit = hwm;
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// Send an empty message until we get an error, which must be EAGAIN
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while (zmq_send (pub, "", 0, 0) == 0)
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send_count++;
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TEST_ASSERT_EQUAL_INT (EAGAIN, errno);
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if (send_count > 0) {
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// Receive first message with blocking
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TEST_ASSERT_SUCCESS_ERRNO (zmq_recv (sub, NULL, 0, 0));
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recv_count++;
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while (zmq_recv (sub, NULL, 0, ZMQ_DONTWAIT) == 0)
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recv_count++;
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}
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TEST_ASSERT_EQUAL_INT (send_count, recv_count);
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// Clean up.
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test_context_socket_close (pub);
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test_context_socket_close (sub);
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}
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int main ()
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{
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setup_test_environment ();
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UNITY_BEGIN ();
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RUN_TEST (test);
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return UNITY_END ();
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}
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