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|
//------------------------------------------------------------------------------
// Copyright (c) 2011-2012 by European Organization for Nuclear Research (CERN)
// Author: Lukasz Janyst <ljanyst@cern.ch>
//------------------------------------------------------------------------------
// XRootD 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.
//
// XRootD 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 Lesser General Public License
// along with XRootD. If not, see <http://www.gnu.org/licenses/>.
//------------------------------------------------------------------------------
#ifndef SERVER_HH
#define SERVER_HH
#include <map>
#include <string>
#include <utility>
#include <vector>
#include <cstdint>
#include <pthread.h>
namespace XrdClTests {
//------------------------------------------------------------------------------
//! Interface for the client handler
//------------------------------------------------------------------------------
class ClientHandler
{
public:
//--------------------------------------------------------------------------
//! Constructor
//--------------------------------------------------------------------------
ClientHandler();
//--------------------------------------------------------------------------
//! Destructor
//--------------------------------------------------------------------------
virtual ~ClientHandler();
//--------------------------------------------------------------------------
//! Handle connection
//!
//! @param socket the connection socket - needs to be closed when not needed
//--------------------------------------------------------------------------
virtual void HandleConnection( int socket ) = 0;
//--------------------------------------------------------------------------
//! Update statistics of the received data
//--------------------------------------------------------------------------
void UpdateSentData( char *buffer, uint32_t size );
//--------------------------------------------------------------------------
//! Update statistics of the sent data
//--------------------------------------------------------------------------
void UpdateReceivedData( char *buffer, uint32_t size );
//--------------------------------------------------------------------------
//! Get sent bytes count
//--------------------------------------------------------------------------
uint64_t GetSentBytes() const
{
return pSentBytes;
}
//--------------------------------------------------------------------------
//! Get the checksum of the sent data buffers
//--------------------------------------------------------------------------
uint32_t GetSentChecksum() const
{
return pSentChecksum;
}
//--------------------------------------------------------------------------
//! Get the received bytes count
//--------------------------------------------------------------------------
uint64_t GetReceivedBytes() const
{
return pReceivedBytes;
}
//--------------------------------------------------------------------------
//! Get the checksum of the received data buffers
//--------------------------------------------------------------------------
uint32_t GetReceivedChecksum() const
{
return pReceivedChecksum;
}
private:
uint64_t pSentBytes;
uint64_t pReceivedBytes;
uint32_t pSentChecksum;
uint32_t pReceivedChecksum;
};
//------------------------------------------------------------------------------
//! Client hander factory interface
//------------------------------------------------------------------------------
class ClientHandlerFactory
{
public:
//--------------------------------------------------------------------------
//! Destructor
//--------------------------------------------------------------------------
virtual ~ClientHandlerFactory() {};
//--------------------------------------------------------------------------
//! Create a client handler
//--------------------------------------------------------------------------
virtual ClientHandler *CreateHandler() = 0;
};
//------------------------------------------------------------------------------
// Forward declaration
//------------------------------------------------------------------------------
struct ClientHelper;
//------------------------------------------------------------------------------
//! Server emulator
//------------------------------------------------------------------------------
class Server
{
public:
enum ProtocolFamily
{
Inet4,
Inet6,
Both
};
typedef std::map<std::string, std::pair<uint64_t, uint32_t> > TransferMap;
//--------------------------------------------------------------------------
//! Constructor
//--------------------------------------------------------------------------
Server( ProtocolFamily family );
//--------------------------------------------------------------------------
//! Destructor
//--------------------------------------------------------------------------
~Server();
//--------------------------------------------------------------------------
//! Listen for incoming connections and handle clients
//!
//! @param port port to listen on
//! @param accept number of clients to accept
//! @param factory client handler factory, the server takes ownership
//! of this object
//--------------------------------------------------------------------------
bool Setup( int port, int accept, ClientHandlerFactory *factory );
//--------------------------------------------------------------------------
//! Start the server
//--------------------------------------------------------------------------
bool Start();
//--------------------------------------------------------------------------
//! Wait for the server to finish - it blocks until all the clients
//! have been handled
//--------------------------------------------------------------------------
bool Stop();
//--------------------------------------------------------------------------
//! Get the statisctics of the sent data
//--------------------------------------------------------------------------
std::pair<uint64_t, uint32_t> GetSentStats( const std::string host ) const;
//--------------------------------------------------------------------------
//! Get the stats of the received data
//--------------------------------------------------------------------------
std::pair<uint64_t, uint32_t> GetReceivedStats( const std::string host ) const;
//--------------------------------------------------------------------------
//! Handle clients
//--------------------------------------------------------------------------
int HandleConnections();
//--------------------------------------------------------------------------
//! Get port where server is running
//--------------------------------------------------------------------------
int GetPort() const;
private:
TransferMap pSent;
TransferMap pReceived;
pthread_t pServerThread;
std::vector<ClientHelper*> pClients;
int pListenSocket;
ClientHandlerFactory *pHandlerFactory;
ProtocolFamily pProtocolFamily;
int pPort;
};
}
#endif // SERVER_HH
|
