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#include "cTCPLink.h"
#include "cSocket.h"
#include "cEvent.h"
#include "cThread.h"
#include "MCSocket.h"
#include "cMCLogger.h"
#include <errno.h>
#ifndef _WIN32
#include <cstring>
#endif
#ifdef _WIN32
#define MSG_NOSIGNAL (0)
#endif
#ifdef __MACH__
#define MSG_NOSIGNAL (0)
#endif
cTCPLink::cTCPLink()
: m_Socket( 0 )
, m_StopEvent( new cEvent() )
{
}
cTCPLink::~cTCPLink()
{
if( m_Socket )
{
CloseSocket();
m_StopEvent->Wait();
}
delete m_StopEvent;
}
void cTCPLink::CloseSocket()
{
if( m_Socket )
{
m_Socket.CloseSocket();
m_Socket = 0;
}
}
bool cTCPLink::Connect( const char* a_Address, unsigned int a_Port )
{
if( m_Socket )
{
LOGWARN("WARNING: cTCPLink Connect() called while still connected. ALWAYS disconnect before re-connecting!");
}
struct hostent *hp;
unsigned int addr;
struct sockaddr_in server;
#ifdef _WIN32
WSADATA wsaData;
int wsaret=WSAStartup(/*0x101*/ MAKEWORD(2, 2),&wsaData);
if(wsaret!=0)
{
LOGERROR("cTCPLink: WSAStartup returned error");
return false;
}
#endif
m_Socket=socket(AF_INET,SOCK_STREAM,0);
if( !m_Socket.IsValid() )
{
LOGERROR("cTCPLink: Invalid socket");
m_Socket = 0;
return false;
}
addr=inet_addr( a_Address );
hp=gethostbyaddr((char*)&addr,sizeof(addr),AF_INET);
if(hp==NULL)
{
//LOGWARN("cTCPLink: gethostbyaddr returned NULL");
hp = gethostbyname( a_Address );
if( hp == NULL )
{
LOGWARN("cTCPLink: Could not resolve %s", a_Address);
CloseSocket();
return false;
}
}
server.sin_addr.s_addr=*((unsigned long*)hp->h_addr);
server.sin_family=AF_INET;
server.sin_port=htons( (unsigned short)a_Port );
if( connect( m_Socket, (struct sockaddr*)&server, sizeof(server) ) )
{
LOGWARN("cTCPLink: No response from server (%i)", errno);
CloseSocket();
return false;
}
cThread( ReceiveThread, this );
return true;
}
int cTCPLink::Send( char* a_Data, unsigned int a_Size, int a_Flags /* = 0 */ )
{
//LOG("TCPLink::Send()");
if( !m_Socket )
{
LOGWARN("cTCPLink: Trying to send data without a valid connection!");
return -1;
}
return send( m_Socket, a_Data, a_Size, a_Flags | MSG_NOSIGNAL );
}
int cTCPLink::SendMessage( const char* a_Message, int a_Flags /* = 0 */ )
{
//LOG("TCPLink::SendMessage()");
if( !m_Socket )
{
LOGWARN("cTCPLink: Trying to send message without a valid connection!");
return -1;
}
return send( m_Socket, a_Message, strlen(a_Message), a_Flags | MSG_NOSIGNAL );
}
void cTCPLink::ReceiveThread( void* a_Param)
{
cTCPLink* self = (cTCPLink*)a_Param;
SOCKET Socket = self->m_Socket;
int Received = 0;
do
{
char Data[256];
Received = recv(Socket, Data, 256, 0);
self->ReceivedData( Data, (Received>0?Received:-1) );
} while ( Received > 0 );
LOGINFO("cTCPLink Disconnected (%i)", Received );
if( Socket == self->m_Socket ) self->m_StopEvent->Set();
}
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