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#include <iostream>
#include <string>
#include <boost/asio.hpp>
#include <boost/signal.hpp>
#include <boost/bind.hpp>
#include <boost/shared_ptr.hpp>
#include <boost/enable_shared_from_this.hpp>
#include <boost/thread.hpp>
#include "Swiften/Base/ByteArray.h"
#include "Swiften/EventLoop/MainEventLoop.h"
#include "Swiften/EventLoop/SimpleEventLoop.h"
#include "Swiften/Network/IncomingConnection.h"
#include "Swiften/Network/ConnectionServer.h"
#include "Swiften/Network/BoostIOServiceThread.h"
using namespace Swift;
class ServerFromClientSession {
public:
ServerFromClientSession(boost::shared_ptr<IncomingConnection> connection) : connection_(connection) {
}
void start() {
connection_->write("Hello\n");
onSessionFinished();
}
boost::signal<void()> onSessionFinished;
private:
boost::shared_ptr<IncomingConnection> connection_;
};
// A reference-counted non-modifiable buffer class.
class SharedBuffer {
public:
SharedBuffer(const ByteArray& data) :
data_(new std::vector<char>(data.begin(), data.end())),
buffer_(boost::asio::buffer(*data_)) {
}
// ConstBufferSequence requirements.
typedef boost::asio::const_buffer value_type;
typedef const boost::asio::const_buffer* const_iterator;
const boost::asio::const_buffer* begin() const { return &buffer_; }
const boost::asio::const_buffer* end() const { return &buffer_ + 1; }
private:
boost::shared_ptr< std::vector<char> > data_;
boost::asio::const_buffer buffer_;
};
class IncomingBoostConnection : public IncomingConnection, public boost::enable_shared_from_this<IncomingBoostConnection> {
public:
typedef boost::shared_ptr<IncomingBoostConnection> pointer;
static pointer create(boost::asio::io_service& ioService) {
return pointer(new IncomingBoostConnection(ioService));
}
boost::asio::ip::tcp::socket& getSocket() {
return socket_;
}
void write(const ByteArray& data) {
boost::asio::async_write(socket_, SharedBuffer(data),
boost::bind(
&IncomingBoostConnection::handleDataWritten,
shared_from_this(),
boost::asio::placeholders::error));
}
private:
IncomingBoostConnection(boost::asio::io_service& ioService) : socket_(ioService) {
}
void handleDataWritten(const boost::system::error_code& error) {
if (error) {
std::cerr << "ERROR: Unable to write data to socket" << std::endl;
}
}
boost::asio::ip::tcp::socket socket_;
};
class BoostConnectionServer : public ConnectionServer {
public:
BoostConnectionServer(int port, boost::asio::io_service& ioService) : acceptor_(ioService, boost::asio::ip::tcp::endpoint(boost::asio::ip::tcp::v4(), port)) {
acceptNextConnection();
}
private:
void acceptNextConnection() {
IncomingBoostConnection::pointer newConnection = IncomingBoostConnection::create(acceptor_.io_service());
acceptor_.async_accept(newConnection->getSocket(),
boost::bind(&BoostConnectionServer::handleAccept, this, newConnection, boost::asio::placeholders::error));
}
void handleAccept(IncomingBoostConnection::pointer newConnection, const boost::system::error_code& error) {
if (!error) {
MainEventLoop::postEvent(boost::bind(boost::ref(onNewConnection), newConnection), this);
acceptNextConnection();
}
}
boost::asio::ip::tcp::acceptor acceptor_;
};
class Server {
public:
Server() {
serverFromClientConnectionServer_ = new BoostConnectionServer(5222, boostIOServiceThread_.getIOService());
serverFromClientConnectionServer_->onNewConnection.connect(boost::bind(&Server::handleNewConnection, this, _1));
}
~Server() {
delete serverFromClientConnectionServer_;
}
private:
void handleNewConnection(boost::shared_ptr<IncomingConnection> c) {
ServerFromClientSession* session = new ServerFromClientSession(c);
serverFromClientSessions_.push_back(session);
session->onSessionFinished.connect(boost::bind(&Server::handleSessionFinished, this, session));
session->start();
}
void handleSessionFinished(ServerFromClientSession* session) {
serverFromClientSessions_.erase(std::remove(serverFromClientSessions_.begin(), serverFromClientSessions_.end(), session), serverFromClientSessions_.end());
delete session;
}
private:
BoostIOServiceThread boostIOServiceThread_;
BoostConnectionServer* serverFromClientConnectionServer_;
std::vector<ServerFromClientSession*> serverFromClientSessions_;
};
int main() {
SimpleEventLoop eventLoop;
Server server;
eventLoop.run();
return 0;
}
|
Swift