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/*
Copyright (c) 2015, Arvid Norberg
All rights reserved.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "simulator/simulator.hpp"
#include <functional>
#include <cstdio> // for printf
#include "catch.hpp"
#ifdef __GNUC__
// for CATCH's CHECK macro
#pragma GCC diagnostic ignored "-Wparentheses"
#endif
using namespace sim;
using namespace sim::asio::ip;
using namespace sim::chrono;
using sim::simulation;
using sim::default_config;
using namespace std::placeholders;
namespace {
char receive_buf[1000];
char send_buf[1000];
int num_sent = 0;
int num_received = 0;
void on_receive(boost::system::error_code const& ec, std::size_t bytes_transferred
, udp::socket& s, udp::endpoint& ep)
{
int millis = int(duration_cast<milliseconds>(high_resolution_clock::now()
.time_since_epoch()).count());
if (ec)
{
std::printf("[%4d] error while receiving: %s\n", millis, ec.message().c_str());
return;
}
num_received += bytes_transferred;
std::printf("[%4d] received %d bytes from %s\n", millis
, int(bytes_transferred)
, ep.address().to_string().c_str());
if (bytes_transferred == 100 * 10) return;
s.async_receive_from(asio::buffer(receive_buf
, sizeof(receive_buf)), ep, std::bind(&on_receive, _1, _2
, std::ref(s), std::ref(ep)));
}
}
TEST_CASE("send packet to udp socket", "[udp_socket]")
{
default_config cfg;
simulation sim(cfg);
asio::io_context incoming_ios(sim, make_address_v4("40.30.20.10"));
asio::io_context outgoing_ios(sim, make_address_v4("10.20.30.40"));
udp::socket incoming(incoming_ios);
udp::socket outgoing(outgoing_ios);
boost::system::error_code ec;
incoming.open(udp::v4(), ec);
REQUIRE(!ec);
incoming.bind(udp::endpoint(address(), 1337), ec);
REQUIRE(!ec);
outgoing.open(udp::v4(), ec);
REQUIRE(!ec);
udp::endpoint remote_endpoint;
incoming.async_receive_from(asio::buffer(receive_buf,
sizeof(receive_buf)), remote_endpoint, std::bind(&on_receive, _1, _2
, std::ref(incoming), std::ref(remote_endpoint)));
outgoing.non_blocking(true);
REQUIRE(!ec);
for (int i = 1; i < 10; ++i)
{
num_sent += outgoing.send_to(asio::buffer(send_buf, 100 * i)
, udp::endpoint(make_address_v4("40.30.20.10"), 1337), 0, ec);
REQUIRE(!ec);
}
sim.run();
int millis = int(duration_cast<milliseconds>(high_resolution_clock::now()
.time_since_epoch()).count());
CHECK(millis == 56);
CHECK(num_sent == num_received);
CHECK(num_sent == 100 * 45);
}
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