mirror of
https://github.com/zeromq/libzmq.git
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126 lines
4.8 KiB
C++
126 lines
4.8 KiB
C++
/*
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Copyright (c) 2007-2013 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 "testutil.hpp"
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/// Initialize a zeromq message with a given null-terminated string
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#define ZMQ_PREPARE_STRING(msg, data, size) \
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zmq_msg_init(&msg) && printf("zmq_msg_init: %s\n", zmq_strerror(errno)); \
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zmq_msg_init_size (&msg, size + 1) && printf("zmq_msg_init_size: %s\n",zmq_strerror(errno)); \
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memcpy(zmq_msg_data(&msg), data, size + 1);
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int publicationsReceived = 0;
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bool isSubscribed = false;
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int main(int argc, char** argv) {
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setup_test_environment();
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void* context = zmq_ctx_new();
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void* pubSocket;
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void* subSocket;
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(pubSocket = zmq_socket(context, ZMQ_XPUB)) || printf("zmq_socket: %s\n", zmq_strerror(errno));
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(subSocket = zmq_socket(context, ZMQ_SUB)) || printf("zmq_socket: %s\n", zmq_strerror(errno));
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zmq_setsockopt(subSocket, ZMQ_SUBSCRIBE, "foo", 3) && printf("zmq_setsockopt: %s\n",zmq_strerror(errno));
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zmq_bind(pubSocket, "inproc://someInProcDescriptor") && printf("zmq_bind: %s\n", zmq_strerror(errno));
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//zmq_bind(pubSocket, "tcp://127.0.0.1:30010") && printf("zmq_bind: %s\n", zmq_strerror(errno));
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int more;
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size_t more_size = sizeof(more);
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int iteration = 0;
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while (1) {
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zmq_pollitem_t items [] = {
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{ subSocket, 0, ZMQ_POLLIN, 0 }, // read publications
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{ pubSocket, 0, ZMQ_POLLIN, 0 }, // read subscriptions
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};
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int rc = zmq_poll (items, 2, 100);
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if (items [1].revents & ZMQ_POLLIN) {
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while (1) {
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zmq_msg_t msg;
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zmq_msg_init (&msg);
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zmq_msg_recv (&msg, pubSocket, 0);
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char* buffer = (char*)zmq_msg_data(&msg);
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if (buffer[0] == 0) {
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assert(isSubscribed);
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isSubscribed = false;
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}
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else {
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assert(!isSubscribed);
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isSubscribed = true;
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}
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zmq_getsockopt (pubSocket, ZMQ_RCVMORE, &more, &more_size);
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zmq_msg_close (&msg);
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if (!more)
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break; // Last message part
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}
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}
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if (items[0].revents & ZMQ_POLLIN) {
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while (1) {
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zmq_msg_t msg;
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zmq_msg_init (&msg);
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zmq_msg_recv (&msg, subSocket, 0);
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zmq_getsockopt (subSocket, ZMQ_RCVMORE, &more, &more_size);
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zmq_msg_close (&msg);
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if (!more) {
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publicationsReceived++;
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break; // Last message part
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}
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}
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}
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if (iteration == 1) {
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zmq_connect(subSocket, "inproc://someInProcDescriptor") && printf("zmq_connect: %s\n", zmq_strerror(errno));
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//zmq_connect(subSocket, "tcp://127.0.0.1:30010") && printf("zmq_connect: %s\n", zmq_strerror(errno));
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}
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if (iteration == 4) {
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zmq_disconnect(subSocket, "inproc://someInProcDescriptor") && printf("zmq_disconnect(%d): %s\n", errno, zmq_strerror(errno));
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//zmq_disconnect(subSocket, "tcp://127.0.0.1:30010") && printf("zmq_disconnect: %s\n", zmq_strerror(errno));
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}
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if (iteration > 4 && rc == 0)
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break;
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zmq_msg_t channelEnvlp;
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ZMQ_PREPARE_STRING(channelEnvlp, "foo", 3);
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zmq_msg_send (&channelEnvlp, pubSocket, ZMQ_SNDMORE) >= 0 || printf("zmq_msg_send: %s\n",zmq_strerror(errno));
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zmq_msg_close(&channelEnvlp) && printf("zmq_msg_close: %s\n",zmq_strerror(errno));
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zmq_msg_t message;
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ZMQ_PREPARE_STRING(message, "this is foo!", 12);
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zmq_msg_send (&message, pubSocket, 0) >= 0 || printf("zmq_msg_send: %s\n",zmq_strerror(errno));
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zmq_msg_close(&message) && printf("zmq_msg_close: %s\n",zmq_strerror(errno));
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iteration++;
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}
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assert(publicationsReceived == 3);
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assert(!isSubscribed);
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zmq_close(pubSocket) && printf("zmq_close: %s", zmq_strerror(errno));
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zmq_close(subSocket) && printf("zmq_close: %s", zmq_strerror(errno));
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zmq_ctx_term(context);
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return 0;
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}
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