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/*
Copyright (c) 2007-2010 iMatix Corporation
This file is part of 0MQ.
0MQ is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
0MQ 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/>.
*/
#ifndef __ZMQ_TEST_TESTUTIL_HPP_INCLUDED__
#define __ZMQ_TEST_TESTUTIL_HPP_INCLUDED__
#include <assert.h>
#include <iostream>
#include <string>
#include <utility>
#include "../include/zmq.hpp"
namespace zmqtestutil
{
using namespace std ;
typedef std::pair <zmq::socket_t*, zmq::socket_t*> socket_pair;
// Create a pair of sockets connected to each other.
socket_pair create_bound_pair (zmq::context_t *context_,
int t1_, int t2_, const char *transport_)
{
zmq::socket_t *s1 = new zmq::socket_t (*context_, t1_);
zmq::socket_t *s2 = new zmq::socket_t (*context_, t2_);
s1->bind (transport_);
s2->connect (transport_);
return socket_pair (s1, s2);
}
// Send a message from one socket in the pair to the other and back.
std::string ping_pong (const socket_pair &sp_, const std::string &orig_msg_)
{
zmq::socket_t &s1 = *sp_.first;
zmq::socket_t &s2 = *sp_.second;
// Construct message to send.
zmq::message_t ping (orig_msg_.size ());
memcpy (ping.data (), orig_msg_.c_str (), orig_msg_.size ());
// Send ping out.
s1.send (ping, 0);
// Get pong from connected socket.
zmq::message_t pong;
s2.recv (&pong, 0);
// Send message via s2, so state is clean in case of req/rep.
std::string ret ((char*) pong.data(), pong.size ());
s2.send (pong, 0);
// Return received data as std::string.
return ret ;
}
/* Run basic tests for the given transport.
Basic tests are:
* ping pong as defined above.
* send receive where the receive is signalled by zmq::poll
*/
void basic_tests (const char *transport_, int t1_, int t2_)
{
zmq::context_t context (1);
zmq::pollitem_t items [2];
socket_pair p = create_bound_pair (&context, t1_, t2_, transport_);
// First test simple ping pong.
const string expect ("XXX");
{
const string returned = zmqtestutil::ping_pong (p, expect);
assert (expect == returned);
// Adjust socket state so that poll shows only 1 pending message.
zmq::message_t mx ;
p.first->recv (&mx, 0);
}
{
// Now poll is used to singal that a message is ready to read.
zmq::message_t m1 (expect.size ());
memcpy (m1.data (), expect.c_str (), expect.size ());
items [0].socket = *p.first;
items [0].fd = 0;
items [0].events = ZMQ_POLLIN;
items [0].revents = 0;
items [1].socket = *p.second;
items [1].fd = 0;
items [1].events = ZMQ_POLLIN;
items [1].revents = 0;
p.first->send (m1, 0);
int rc = zmq::poll (&items [0], 2, -1);
assert (rc == 1);
assert ((items [1].revents & ZMQ_POLLIN) != 0);
zmq::message_t m2;
p.second->recv (&m2, 0);
const string ret ((char*) m2.data (), m2.size ());
assert (expect == ret);
}
// Delete sockets.
delete (p.first);
delete (p.second);
}
}
#endif
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