Move Socket to dcpomatic_socket.{cc,h}.

1 files changed, 156 insertions, 0 deletions

diff --git a/src/lib/dcpomatic_socket.cc b/src/lib/dcpomatic_socket.cc
new file mode 100644
index 000000000..bc8f596a7
--- /dev/null
+++ b/src/lib/dcpomatic_socket.cc
@@ -0,0 +1,156 @@
+/*
+    Copyright (C) 2012-2015 Carl Hetherington <cth@carlh.net>
+
+    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 2 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, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#include "dcpomatic_socket.h"
+#include "compose.hpp"
+#include "exceptions.h"
+#include <boost/bind.hpp>
+#include <boost/lambda/lambda.hpp>
+
+#include "i18n.h"
+
+Socket::Socket (int timeout)
+	: _deadline (_io_service)
+	, _socket (_io_service)
+	, _acceptor (0)
+	, _timeout (timeout)
+{
+	_deadline.expires_at (boost::posix_time::pos_infin);
+	check ();
+}
+
+Socket::~Socket ()
+{
+	delete _acceptor;
+}
+
+void
+Socket::check ()
+{
+	if (_deadline.expires_at() <= boost::asio::deadline_timer::traits_type::now ()) {
+		if (_acceptor) {
+			_acceptor->cancel ();
+		} else {
+			_socket.close ();
+		}
+		_deadline.expires_at (boost::posix_time::pos_infin);
+	}
+
+	_deadline.async_wait (boost::bind (&Socket::check, this));
+}
+
+/** Blocking connect.
+ *  @param endpoint End-point to connect to.
+ */
+void
+Socket::connect (boost::asio::ip::tcp::endpoint endpoint)
+{
+	_deadline.expires_from_now (boost::posix_time::seconds (_timeout));
+	boost::system::error_code ec = boost::asio::error::would_block;
+	_socket.async_connect (endpoint, boost::lambda::var(ec) = boost::lambda::_1);
+	do {
+		_io_service.run_one();
+	} while (ec == boost::asio::error::would_block);
+
+	if (ec) {
+		throw NetworkError (String::compose (_("error during async_connect (%1)"), ec.value ()));
+	}
+
+	if (!_socket.is_open ()) {
+		throw NetworkError (_("connect timed out"));
+	}
+}
+
+void
+Socket::accept (int port)
+{
+	_acceptor = new boost::asio::ip::tcp::acceptor (_io_service, boost::asio::ip::tcp::endpoint (boost::asio::ip::tcp::v4(), port));
+	
+	_deadline.expires_from_now (boost::posix_time::seconds (_timeout));
+	boost::system::error_code ec = boost::asio::error::would_block;
+	_acceptor->async_accept (_socket, boost::lambda::var(ec) = boost::lambda::_1);
+	do {
+		_io_service.run_one ();
+	} while (ec == boost::asio::error::would_block);
+
+	delete _acceptor;
+	_acceptor = 0;
+	
+	if (ec) {
+		throw NetworkError (String::compose (_("error during async_accept (%1)"), ec.value ()));
+	}
+}
+
+/** Blocking write.
+ *  @param data Buffer to write.
+ *  @param size Number of bytes to write.
+ */
+void
+Socket::write (uint8_t const * data, int size)
+{
+	_deadline.expires_from_now (boost::posix_time::seconds (_timeout));
+	boost::system::error_code ec = boost::asio::error::would_block;
+
+	boost::asio::async_write (_socket, boost::asio::buffer (data, size), boost::lambda::var(ec) = boost::lambda::_1);
+	
+	do {
+		_io_service.run_one ();
+	} while (ec == boost::asio::error::would_block);
+
+	if (ec) {
+		throw NetworkError (String::compose (_("error during async_write (%1)"), ec.value ()));
+	}
+}
+
+void
+Socket::write (uint32_t v)
+{
+	v = htonl (v);
+	write (reinterpret_cast<uint8_t*> (&v), 4);
+}
+
+/** Blocking read.
+ *  @param data Buffer to read to.
+ *  @param size Number of bytes to read.
+ */
+void
+Socket::read (uint8_t* data, int size)
+{
+	_deadline.expires_from_now (boost::posix_time::seconds (_timeout));
+	boost::system::error_code ec = boost::asio::error::would_block;
+
+	boost::asio::async_read (_socket, boost::asio::buffer (data, size), boost::lambda::var(ec) = boost::lambda::_1);
+
+	do {
+		_io_service.run_one ();
+	} while (ec == boost::asio::error::would_block);
+	
+	if (ec) {
+		throw NetworkError (String::compose (_("error during async_read (%1)"), ec.value ()));
+	}
+}
+
+uint32_t
+Socket::read_uint32 ()
+{
+	uint32_t v;
+	read (reinterpret_cast<uint8_t *> (&v), 4);
+	return ntohl (v);
+}
+