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// ---------------------------------------------------------------------
// pion: a Boost C++ framework for building lightweight HTTP interfaces
// ---------------------------------------------------------------------
// Copyright (C) 2007-2014 Splunk Inc. (https://github.com/splunk/pion)
//
// Distributed under the Boost Software License, Version 1.0.
// See http://www.boost.org/LICENSE_1_0.txt
//
#include <boost/asio.hpp>
#include <boost/bind.hpp>
#include <boost/thread.hpp>
#include <boost/function.hpp>
#include <boost/test/unit_test.hpp>
#include <pion/config.hpp>
#include <pion/scheduler.hpp>
#include <pion/tcp/stream.hpp>
using namespace std;
using namespace pion;
///
/// tcp_stream_tests_F: fixture used for performing tcp::stream tests
///
class tcp_stream_tests_F {
public:
/// data type for a function that handles tcp::stream connections
typedef boost::function1<void,tcp::stream&> connection_handler;
// default constructor and destructor
tcp_stream_tests_F() {
}
virtual ~tcp_stream_tests_F() {}
/**
* listen for a TCP connection and call the connection handler when connected
*
* @param conn_handler function to call after a connection is established
*/
void acceptConnection(connection_handler conn_handler) {
// configure the acceptor service
boost::asio::ip::tcp::acceptor tcp_acceptor(m_scheduler.get_io_service());
boost::asio::ip::tcp::endpoint tcp_endpoint(boost::asio::ip::tcp::v4(), 0);
tcp_acceptor.open(tcp_endpoint.protocol());
// allow the acceptor to reuse the address (i.e. SO_REUSEADDR)
tcp_acceptor.set_option(boost::asio::ip::tcp::acceptor::reuse_address(true));
tcp_acceptor.bind(tcp_endpoint);
tcp_acceptor.listen();
// notify test thread that we are ready to accept a connection
{
// wait for test thread to be waiting on the signal
boost::unique_lock<boost::mutex> accept_lock(m_accept_mutex);
// trigger signal to wake test thread
m_port = tcp_acceptor.local_endpoint().port();
m_accept_ready.notify_one();
}
// schedule another thread to listen for a TCP connection
tcp::stream listener_stream(m_scheduler.get_io_service());
boost::system::error_code ec = listener_stream.accept(tcp_acceptor);
tcp_acceptor.close();
BOOST_REQUIRE(! ec);
// call the connection handler
conn_handler(listener_stream);
}
/// sends a "Hello" to a tcp::stream
static void sendHello(tcp::stream& str) {
str << "Hello" << std::endl;
str.flush();
}
/// port where acceptor listens
int m_port;
/// used to schedule work across multiple threads
single_service_scheduler m_scheduler;
/// used to notify test thread when acceptConnection() is ready
boost::condition m_accept_ready;
/// used to sync test thread with acceptConnection()
boost::mutex m_accept_mutex;
};
// tcp::stream Test Cases
BOOST_FIXTURE_TEST_SUITE(tcp_stream_tests_S, tcp_stream_tests_F)
BOOST_AUTO_TEST_CASE(checkTCPConnectToAnotherStream) {
boost::unique_lock<boost::mutex> accept_lock(m_accept_mutex);
// schedule another thread to listen for a TCP connection
connection_handler conn_handler(boost::bind(&tcp_stream_tests_F::sendHello, _1));
boost::thread listener_thread(boost::bind(&tcp_stream_tests_F::acceptConnection,
this, conn_handler) );
m_scheduler.add_active_user();
m_accept_ready.wait(accept_lock);
// connect to the listener
tcp::stream client_str(m_scheduler.get_io_service());
boost::system::error_code ec;
ec = client_str.connect(boost::asio::ip::address::from_string("127.0.0.1"), m_port);
BOOST_REQUIRE(! ec);
// get the hello message
std::string response_msg;
client_str >> response_msg;
BOOST_CHECK_EQUAL(response_msg, "Hello");
client_str.close();
listener_thread.join();
m_scheduler.remove_active_user();
}
BOOST_AUTO_TEST_SUITE_END()
#define BIG_BUF_SIZE (12 * 1024)
///
/// tcp_stream_buffer_tests_F: fixture that includes a big data buffer used for tests
///
class tcp_stream_buffer_tests_F
: public tcp_stream_tests_F
{
public:
// default constructor and destructor
tcp_stream_buffer_tests_F() {
// fill the buffer with non-random characters
for (unsigned long n = 0; n < BIG_BUF_SIZE; ++n) {
m_big_buf[n] = char(n);
}
}
virtual ~tcp_stream_buffer_tests_F() {}
/// sends the big buffer contents to a tcp::stream
void sendBigBuffer(tcp::stream& str) {
str.write(m_big_buf, BIG_BUF_SIZE);
str.flush();
}
/// big data buffer used for the tests
char m_big_buf[BIG_BUF_SIZE];
};
BOOST_FIXTURE_TEST_SUITE(tcp_stream_buffer_tests_S, tcp_stream_buffer_tests_F)
BOOST_AUTO_TEST_CASE(checkSendAndReceiveBiggerThanBuffers) {
boost::unique_lock<boost::mutex> accept_lock(m_accept_mutex);
// schedule another thread to listen for a TCP connection
connection_handler conn_handler(boost::bind(&tcp_stream_buffer_tests_F::sendBigBuffer, this, _1));
boost::thread listener_thread(boost::bind(&tcp_stream_buffer_tests_F::acceptConnection,
this, conn_handler) );
m_scheduler.add_active_user();
m_accept_ready.wait(accept_lock);
// connect to the listener
tcp::stream client_str(m_scheduler.get_io_service());
boost::system::error_code ec;
ec = client_str.connect(boost::asio::ip::address::from_string("127.0.0.1"), m_port);
BOOST_REQUIRE(! ec);
// read the big buffer contents
char another_buf[BIG_BUF_SIZE];
BOOST_REQUIRE(client_str.read(another_buf, BIG_BUF_SIZE));
BOOST_CHECK_EQUAL(memcmp(m_big_buf, another_buf, BIG_BUF_SIZE), 0);
client_str.close();
listener_thread.join();
m_scheduler.remove_active_user();
}
BOOST_AUTO_TEST_SUITE_END()
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