Serious-Engine/Sources/Engine/Network/CommunicationInterface.h

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/* Copyright (c) 2002-2012 Croteam Ltd.
This program is free software; you can redistribute it and/or modify
it under the terms of version 2 of the GNU General Public License as published by
the Free Software Foundation
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.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */
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#ifndef SE_INCL_COMMUNICATIONINTERFACE_H
#define SE_INCL_COMMUNICATIONINTERFACE_H
#ifdef PRAGMA_ONCE
#pragma once
#endif
#ifdef PLATFORM_UNIX
#include <fcntl.h>
#include <netdb.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
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#include <errno.h>
#define INVALID_SOCKET -1
#define SOCKET_ERROR -1
#define closesocket close
typedef int SOCKET;
typedef struct hostent HOSTENT;
typedef struct sockaddr_in SOCKADDR_IN;
typedef struct sockaddr SOCKADDR;
#define WSAGetLastError() (INDEX) errno
#endif
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#define SERVER_CLIENTS 16
#include <Engine/Network/CPacket.h>
// Communication class
class ENGINE_API CCommunicationInterface {
public:
BOOL cci_bSocketOpen; // set if socket is open and working
BOOL cci_bBound; // set for udp sockets that have been explicitly or implicitly bound
BOOL cci_bInitialized; // is the communication interface initialized or not
BOOL cci_bWinSockOpen; // is the winsock API initialized
BOOL cci_bServerInitialized;
BOOL cci_bClientInitialized;
CPacketBuffer cci_pbMasterOutput; // master output buffer
CPacketBuffer cci_pbMasterInput; // master input buffer
SOCKET cci_hSocket; // the socket handle itself
public:
// client
void Client_OpenLocal(void);
void Client_OpenNet_t(ULONG ulServerAddress);
// update master UDP socket and route its messages
void UpdateMasterBuffers(void);
public:
CCommunicationInterface(void);
~CCommunicationInterface(void){};
// start/stop protocols
void Init(void);
void Close(void);
void InitWinsock(void);
void EndWinsock(void);
void PrepareForUse(BOOL bUseNetwork, BOOL bClient);
void Unprepare(void);
BOOL IsNetworkEnabled(void);
// get address of local machine
void GetHostName(CTString &strName, CTString &strAddress);
// create an inet-family socket
void CreateSocket_t();
// bind socket to the given address
void Bind_t(ULONG ulLocalHost, ULONG ulLocalPort);
// set socket to non-blocking mode
void SetNonBlocking_t(void);
// get generic socket error info string and last error
CTString GetSocketError(INDEX iError);
// open an UDP socket at given port
void OpenSocket_t(ULONG ulLocalHost, ULONG ulLocalPort);
// get address of this host
void GetLocalAddress_t(ULONG &ulHost, ULONG &ulPort);
// get address of the peer host connected to this socket
void GetRemoteAddress_t(ULONG &ulHost, ULONG &ulPort);
// broadcast communication
void Broadcast_Send(const void *pvSend, SLONG slSendSize,CAddress &adrDestination);
BOOL Broadcast_Receive(void *pvReceive, SLONG &slReceiveSize,CAddress &adrAddress);
// here we receive connect requests
void Broadcast_Update_t(void);
// Server
void Server_Init_t(void);
void Server_Close(void);
void Server_ClearClient(INDEX iClient);
BOOL Server_IsClientLocal(INDEX iClient);
BOOL Server_IsClientUsed(INDEX iClient);
CTString Server_GetClientName(INDEX iClient);
void Server_Send_Reliable(INDEX iClient, const void *pvSend, SLONG slSendSize);
BOOL Server_Receive_Reliable(INDEX iClient, void *pvReceive, SLONG &slReceiveSize);
void Server_Send_Unreliable(INDEX iClient, const void *pvSend, SLONG slSendSize);
BOOL Server_Receive_Unreliable(INDEX iClient, void *pvReceive, SLONG &slReceiveSize);
BOOL Server_Update(void);
// Client
void Client_Init_t(char* strServerName);
void Client_Init_t(ULONG ulServerAddress);
void Client_Close(void);
void Client_Clear(void);
BOOL Client_IsConnected(void);
void Client_Send_Reliable(const void *pvSend, SLONG slSendSize);
BOOL Client_Receive_Reliable(void *pvReceive, SLONG &slReceiveSize);
BOOL Client_Receive_Reliable(CTStream &strmReceive);
void Client_PeekSize_Reliable(SLONG &slExpectedSize,SLONG &slReceivedSize);
void Client_Send_Unreliable(const void *pvSend, SLONG slSendSize);
BOOL Client_Receive_Unreliable(void *pvReceive, SLONG &slReceiveSize);
BOOL Client_Update(void);
};
extern ENGINE_API CCommunicationInterface _cmiComm;
extern CPacketBufferStats _pbsSend;
extern CPacketBufferStats _pbsRecv;
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#endif /* include-once check. */