mirror of
https://github.com/zeromq/libzmq.git
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117 lines
3.8 KiB
C++
117 lines
3.8 KiB
C++
/*
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Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
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This file is part of 0MQ.
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0MQ is free software; you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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0MQ is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdio.h>
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#include "testutil.hpp"
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#include <unistd.h>
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// DEBUG shouldn't be defined in sources as it will cause a redefined symbol
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// error when it is defined in the build configuration. It appears that the
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// intent here is to semi-permanently disable DEBUG tracing statements, so the
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// implementation is changed to accomodate that intent.
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//#define DEBUG 0
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#define TRACE_ENABLED 0
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int main (void)
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{
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int rc;
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if (TRACE_ENABLED) fprintf(stderr, "Staring router mandatory HWM test ...\n");
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setup_test_environment();
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void *ctx = zmq_ctx_new ();
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assert (ctx);
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void *router = zmq_socket (ctx, ZMQ_ROUTER);
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assert (router);
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// Configure router socket to mandatory routing and set HWM and linger
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int mandatory = 1;
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rc = zmq_setsockopt (router, ZMQ_ROUTER_MANDATORY, &mandatory, sizeof (mandatory));
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assert (rc == 0);
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int sndhwm = 1;
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rc = zmq_setsockopt (router, ZMQ_SNDHWM, &sndhwm, sizeof (sndhwm));
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assert (rc == 0);
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int linger = 1;
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rc = zmq_setsockopt (router, ZMQ_LINGER, &linger, sizeof (linger));
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assert (rc == 0);
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rc = zmq_bind (router, "tcp://127.0.0.1:5560");
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assert (rc == 0);
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// Create dealer called "X" and connect it to our router, configure HWM
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void *dealer = zmq_socket (ctx, ZMQ_DEALER);
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assert (dealer);
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rc = zmq_setsockopt (dealer, ZMQ_IDENTITY, "X", 1);
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assert (rc == 0);
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int rcvhwm = 1;
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rc = zmq_setsockopt (dealer, ZMQ_RCVHWM, &rcvhwm, sizeof (rcvhwm));
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assert (rc == 0);
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rc = zmq_connect (dealer, "tcp://127.0.0.1:5560");
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assert (rc == 0);
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// Get message from dealer to know when connection is ready
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char buffer [255];
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rc = zmq_send (dealer, "Hello", 5, 0);
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assert (rc == 5);
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rc = zmq_recv (router, buffer, 255, 0);
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assert (rc == 1);
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assert (buffer [0] == 'X');
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int i;
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const int BUF_SIZE = 65536;
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char buf[BUF_SIZE];
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// Send first batch of messages
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for(i = 0; i < 100000; ++i) {
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if (TRACE_ENABLED) fprintf(stderr, "Sending message %d ...\n", i);
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rc = zmq_send (router, "X", 1, ZMQ_DONTWAIT | ZMQ_SNDMORE);
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if (rc == -1 && zmq_errno() == EAGAIN) break;
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assert (rc == 1);
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rc = zmq_send (router, buf, BUF_SIZE, ZMQ_DONTWAIT);
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assert (rc == BUF_SIZE);
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}
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// This should fail after one message but kernel buffering could
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// skew results
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assert (i < 10);
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sleep(1);
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// Send second batch of messages
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for(; i < 100000; ++i) {
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if (TRACE_ENABLED) fprintf(stderr, "Sending message %d (part 2) ...\n", i);
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rc = zmq_send (router, "X", 1, ZMQ_DONTWAIT | ZMQ_SNDMORE);
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if (rc == -1 && zmq_errno() == EAGAIN) break;
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assert (rc == 1);
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rc = zmq_send (router, buf, BUF_SIZE, ZMQ_DONTWAIT);
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assert (rc == BUF_SIZE);
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}
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// This should fail after two messages but kernel buffering could
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// skew results
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assert (i < 20);
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if (TRACE_ENABLED) fprintf(stderr, "Done sending messages.\n");
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rc = zmq_close (router);
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assert (rc == 0);
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rc = zmq_close (dealer);
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assert (rc == 0);
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rc = zmq_ctx_term (ctx);
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assert (rc == 0);
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return 0 ;
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}
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