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//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
// $NoKeywords: $
//=============================================================================//
#include "stdafx.h"
#include "service_conn_mgr.h"
#include "vmpi.h"
#include "tier0/dbg.h"
#include "tcpsocket_helpers.h"
#define SERVICECONNMGR_CONNECT_ATTEMPT_INTERVAL 1000
// ------------------------------------------------------------------------------------------- //
// CServiceConn.
// ------------------------------------------------------------------------------------------- //
CServiceConn::CServiceConn()
{
m_pSocket = NULL;
}
CServiceConn::~CServiceConn()
{
if ( m_pSocket )
m_pSocket->Release();
}
// ------------------------------------------------------------------------------------------- //
// CServiceConnMgr.
// ------------------------------------------------------------------------------------------- //
CServiceConnMgr::CServiceConnMgr()
{
m_bServer = false;
m_bShuttingDown = false;
m_pListenSocket = NULL;
}
CServiceConnMgr::~CServiceConnMgr()
{
Term();
}
bool CServiceConnMgr::InitServer()
{
Term();
m_bServer = true;
// Create a socket to listen on.
for ( int iPort=VMPI_SERVICE_FIRST_UI_PORT; iPort <= VMPI_SERVICE_LAST_UI_PORT; iPort++ )
{
m_pListenSocket = CreateTCPListenSocketEmu( iPort, 5 );
if ( m_pListenSocket )
break;
}
if ( !m_pListenSocket )
return false;
return true;
}
bool CServiceConnMgr::InitClient()
{
Term();
m_bServer = false;
AttemptConnect();
return true;
}
void CServiceConnMgr::Term()
{
m_bShuttingDown = true; // This prevents some reentrancy.
// Get rid of our registry key.
if ( m_pListenSocket )
{
m_pListenSocket->Release();
m_pListenSocket = NULL;
}
m_Connections.PurgeAndDeleteElements();
m_bShuttingDown = false;
}
bool CServiceConnMgr::IsConnected()
{
return m_Connections.Count() != 0;
}
void CServiceConnMgr::Update()
{
DWORD curTime = GetTickCount();
// Connect if we're an unconnected client.
if ( m_bServer )
{
if ( m_pListenSocket )
{
// Listen for more connections.
while ( 1 )
{
CIPAddr addr;
ITCPSocket *pSocket = m_pListenSocket->UpdateListen( &addr );
if ( !pSocket )
break;
CServiceConn *pConn = new CServiceConn;
pConn->m_ID = m_Connections.AddToTail( pConn );
pConn->m_LastRecvTime = curTime;
pConn->m_pSocket = pSocket;
OnNewConnection( pConn->m_ID );
}
}
}
else
{
if ( !IsConnected() && curTime - m_LastConnectAttemptTime >= SERVICECONNMGR_CONNECT_ATTEMPT_INTERVAL )
{
AttemptConnect();
}
}
// Check for timeouts and send acks.
int iNext;
for ( int iCur=m_Connections.Head(); iCur != m_Connections.InvalidIndex(); iCur=iNext )
{
iNext = m_Connections.Next( iCur );
CServiceConn *pConn = m_Connections[iCur];
if ( pConn->m_pSocket->IsConnected() )
{
DWORD startTime = GetTickCount();
CUtlVector<unsigned char> data;
while ( pConn->m_pSocket->Recv( data ) )
{
HandlePacket( (char*)data.Base(), data.Count() );
// Don't sit in this loop too long.
if ( (GetTickCount() - startTime) > 50 )
break;
}
}
else
{
OnTerminateConnection( iCur );
m_Connections.Remove( iCur );
delete pConn;
}
}
}
void CServiceConnMgr::SendPacket( int id, const void *pData, int len )
{
if ( id == -1 )
{
FOR_EACH_LL( m_Connections, i )
{
m_Connections[i]->m_pSocket->Send( pData, len );
}
}
else
{
m_Connections[id]->m_pSocket->Send( pData, len );
}
}
void CServiceConnMgr::AttemptConnect()
{
m_LastConnectAttemptTime = GetTickCount();
ITCPSocket *pSocket = NULL;
for ( int iPort=VMPI_SERVICE_FIRST_UI_PORT; iPort <= VMPI_SERVICE_LAST_UI_PORT; iPort++ )
{
pSocket = CreateTCPSocketEmu();
if ( !pSocket || !pSocket->BindToAny( 0 ) )
return;
CIPAddr addr( 127, 0, 0, 1, iPort );
if ( TCPSocket_Connect( pSocket, &addr, 0.1 ) )
break;
pSocket->Release();
pSocket = NULL;
}
if ( pSocket )
{
CServiceConn *pConn = new CServiceConn;
pConn->m_ID = m_Connections.AddToTail( pConn );
pConn->m_LastRecvTime = GetTickCount();
pConn->m_pSocket = pSocket;
OnNewConnection( pConn->m_ID );
}
}
void CServiceConnMgr::OnNewConnection( int id )
{
}
void CServiceConnMgr::OnTerminateConnection( int id )
{
}
void CServiceConnMgr::HandlePacket( const char *pData, int len )
{
}
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