BOOL CUdpCast::ConnectToGroup(const HP_SOCKADDR& bindAddr)
{
if(m_enCastMode == CM_MULTICAST)
{
if(!SetMultiCastSocketOptions(bindAddr))
return FALSE;
}
else
{
ASSERT(m_castAddr.IsIPv4());
BOOL bSet = TRUE;
VERIFY(::SSO_SetSocketOption(m_soClient, SOL_SOCKET, SO_BROADCAST, &bSet, sizeof(BOOL)) != SOCKET_ERROR);
}
BOOL isOK = FALSE;
if(::WSAEventSelect(m_soClient, m_evSocket, FD_READ | FD_WRITE | FD_CLOSE) != SOCKET_ERROR)
{
if(FireConnect() != HR_ERROR)
{
m_enState = SS_STARTED;
isOK = TRUE;
}
}
return isOK;
}
BOOL CUdpClient::HandleConnect(WSANETWORKEVENTS& events)
{
BOOL bContinue = TRUE;
int iCode = events.iErrorCode[FD_CONNECT_BIT];
if(iCode == 0)
{
if(::WSAEventSelect(m_soClient, m_evSocket, FD_READ | FD_WRITE | FD_CLOSE) != SOCKET_ERROR)
{
if(FireConnect(this) != HR_ERROR)
{
VERIFY(NeedDetectorThread() || DetectConnection() == NO_ERROR);
m_enState = SS_STARTED;
}
else
iCode = ERROR_CANCELLED;
}
else
iCode = ::WSAGetLastError();
}
if(iCode != 0)
{
SetLastError(SE_NETWORK, __FUNCTION__, iCode);
FireError(this, SO_CONNECT, iCode);
bContinue = FALSE;
}
return bContinue;
}
BOOL CTcpClient::HandleConnect(SHORT events)
{
ASSERT(events & POLLOUT);
int code = ::SSO_GetError(m_soClient);
if(!IS_NO_ERROR(code) || (events & _POLL_ERROR_EVENTS))
{
m_ccContext.Reset(TRUE, SO_CONNECT, code);
return FALSE;
}
if(events & _POLL_HUNGUP_EVENTS)
{
m_ccContext.Reset(TRUE, SO_CONNECT, NO_ERROR);
return FALSE;
}
SetConnected();
if(TRIGGER(FireConnect()) == HR_ERROR)
{
m_ccContext.Reset(FALSE);
return FALSE;
}
return TRUE;
}
BOOL CUdpCast::ConnectToGroup(LPCTSTR lpszRemoteAddress, USHORT usPort, in_addr sinAddr)
{
if(m_enCastMode == CM_MULTICAST)
{
TCHAR szAddress[40];
int iAddressLen = sizeof(szAddress) / sizeof(TCHAR);
if(!::GetIPAddress(lpszRemoteAddress, szAddress, iAddressLen))
{
::WSASetLastError(WSAEADDRNOTAVAIL);
return FALSE;
}
if(!::sockaddr_A_2_IN(AF_INET, szAddress, usPort, m_castAddr))
{
::WSASetLastError(WSAEADDRNOTAVAIL);
return FALSE;
}
VERIFY(::SSO_SetSocketOption(m_soClient, IPPROTO_IP, IP_MULTICAST_TTL, &m_iMCTtl, sizeof(int)) != SOCKET_ERROR);
VERIFY(::SSO_SetSocketOption(m_soClient, IPPROTO_IP, IP_MULTICAST_LOOP, &m_bMCLoop, sizeof(BOOL)) != SOCKET_ERROR);
}
else
{
m_castAddr.sin_family = AF_INET;
m_castAddr.sin_addr.s_addr = INADDR_BROADCAST;
m_castAddr.sin_port = htons(usPort);
BOOL bSet = TRUE;
VERIFY(::SSO_SetSocketOption(m_soClient, SOL_SOCKET, SO_BROADCAST, &bSet, sizeof(BOOL)) != SOCKET_ERROR);
}
if(m_enCastMode == CM_MULTICAST)
{
ip_mreq mcast;
::ZeroMemory(&mcast, sizeof(ip_mreq));
mcast.imr_multiaddr = m_castAddr.sin_addr;
mcast.imr_interface = sinAddr;
if(::SSO_SetSocketOption(m_soClient, IPPROTO_IP, IP_ADD_MEMBERSHIP, &mcast, sizeof(ip_mreq)) == SOCKET_ERROR)
return FALSE;
}
SetRemoteHost(lpszRemoteAddress, usPort);
BOOL isOK = FALSE;
if(::WSAEventSelect(m_soClient, m_evSocket, FD_READ | FD_WRITE | FD_CLOSE) != SOCKET_ERROR)
{
if(FireConnect() != HR_ERROR)
{
m_enState = SS_STARTED;
isOK = TRUE;
}
}
return isOK;
}
DWORD CTcpAgent::ConnectToServer(CONNID dwConnID, SOCKET& soClient, LPCTSTR pszRemoteAddress, USHORT usPort)
{
TCHAR szAddress[40];
int iAddressLen = sizeof(szAddress) / sizeof(TCHAR);
if(!::GetIPAddress(pszRemoteAddress, szAddress, iAddressLen))
return ERROR_INVALID_ADDRESS;
SOCKADDR_IN addr;
if(!::sockaddr_A_2_IN(AF_INET, szAddress, usPort, addr))
return ERROR_INVALID_ADDRESS;
TBufferObj* pBufferObj = GetFreeBufferObj();
TSocketObj* pSocketObj = GetFreeSocketObj(dwConnID, soClient);
memcpy(&pSocketObj->remoteAddr, &addr, sizeof(SOCKADDR_IN));
AddClientSocketObj(dwConnID, pSocketObj);
DWORD result = NO_ERROR;
if(m_bAsyncConnect)
{
if(::CreateIoCompletionPort((HANDLE)soClient, m_hCompletePort, (ULONG_PTR)pSocketObj, 0))
result = ::PostConnect(m_pfnConnectEx, soClient, addr, pBufferObj);
else
result = ::GetLastError();
}
else
{
if(::connect(soClient, (SOCKADDR*)&addr, sizeof(SOCKADDR_IN)) != SOCKET_ERROR)
{
if(::CreateIoCompletionPort((HANDLE)soClient, m_hCompletePort, (ULONG_PTR)pSocketObj, 0))
{
BOOL bOnOff = (m_dwKeepAliveTime > 0 && m_dwKeepAliveInterval > 0);
VERIFY(::SSO_KeepAliveVals(pSocketObj->socket, bOnOff, m_dwKeepAliveTime, m_dwKeepAliveInterval) == NO_ERROR);
if(FireConnect(dwConnID) != HR_ERROR)
result = DoReceive(dwConnID, pSocketObj, pBufferObj);
else
result = ERROR_FUNCTION_FAILED;
}
else
result = ::GetLastError();
}
else
result = ::WSAGetLastError();
}
if(result != NO_ERROR)
{
AddFreeSocketObj(dwConnID, SCF_NONE);
AddFreeBufferObj(pBufferObj);
soClient = INVALID_SOCKET;
}
return result;
}
void CTcpAgent::HandleConnect(CONNID dwConnID, TSocketObj* pSocketObj, TBufferObj* pBufferObj)
{
VERIFY(::SSO_UpdateConnectContext(pSocketObj->socket, 0) == NO_ERROR);
BOOL bOnOff = (m_dwKeepAliveTime > 0 && m_dwKeepAliveInterval > 0);
VERIFY(::SSO_KeepAliveVals(pSocketObj->socket, bOnOff, m_dwKeepAliveTime, m_dwKeepAliveInterval) == NO_ERROR);
if(FireConnect(dwConnID) != HR_ERROR)
DoReceive(dwConnID, pSocketObj, pBufferObj);
else
{
AddFreeSocketObj(dwConnID, SCF_NONE);
AddFreeBufferObj(pBufferObj);
}
}
BOOL CTcpClient::ConnectToServer(LPCTSTR pszRemoteAddress, USHORT usPort)
{
TCHAR szAddress[40];
int iAddressLen = sizeof(szAddress) / sizeof(TCHAR);
if(!::GetIPAddress(pszRemoteAddress, szAddress, iAddressLen))
{
::WSASetLastError(WSAEADDRNOTAVAIL);
return FALSE;
}
SOCKADDR_IN addr;
if(!::sockaddr_A_2_IN(AF_INET, szAddress, usPort, addr))
{
::WSASetLastError(WSAEADDRNOTAVAIL);
return FALSE;
}
BOOL isOK = FALSE;
if(m_bAsyncConnect)
{
if(::WSAEventSelect(m_soClient, m_evSocket, FD_CONNECT | FD_CLOSE) != SOCKET_ERROR)
{
int rc = ::connect(m_soClient, (SOCKADDR*)&addr, sizeof(SOCKADDR_IN));
isOK = (rc == NO_ERROR || (rc == SOCKET_ERROR && ::WSAGetLastError() == WSAEWOULDBLOCK));
}
}
else
{
if(::connect(m_soClient, (SOCKADDR*)&addr, sizeof(SOCKADDR_IN)) != SOCKET_ERROR)
{
if(::WSAEventSelect(m_soClient, m_evSocket, FD_READ | FD_WRITE | FD_CLOSE) != SOCKET_ERROR)
{
if(FireConnect(this) != HR_ERROR)
{
m_enState = SS_STARTED;
isOK = TRUE;
}
}
}
}
return isOK;
}
BOOL CClientSocket::ConnectToServer(LPCTSTR pszRemoteAddress, USHORT usPort)
{
CString strAddress;
if(!::GetIPAddress(pszRemoteAddress, strAddress))
return FALSE;
SOCKADDR_IN addr;
if(!::sockaddr_A_2_IN(AF_INET, strAddress, usPort, addr))
return FALSE;
BOOL isOK = FALSE;
if(m_bAsyncConnect)
{
if(::WSAEventSelect(m_soClient, m_evSocket, FD_CONNECT | FD_CLOSE) != SOCKET_ERROR)
{
int rc = connect(m_soClient, (SOCKADDR*)&addr, sizeof(SOCKADDR_IN));
isOK = (rc == NO_ERROR || (rc == SOCKET_ERROR && ::WSAGetLastError() == WSAEWOULDBLOCK));
}
}
else
{
if(connect(m_soClient, (SOCKADDR*)&addr, sizeof(SOCKADDR_IN)) != SOCKET_ERROR)
{
if(::WSAEventSelect(m_soClient, m_evSocket, FD_READ | FD_WRITE | FD_CLOSE) != SOCKET_ERROR)
{
if(FireConnect(m_dwConnID) != ISocketListener::HR_ERROR)
{
m_enState = SS_STARTED;
isOK = TRUE;
}
}
}
}
return isOK;
}
BOOL CTcpClient::ConnectToServer(const HP_SOCKADDR& addrRemote, BOOL bAsyncConnect)
{
BOOL isOK = FALSE;
if(bAsyncConnect)
{
VERIFY(::fcntl_SETFL(m_soClient, O_NOATIME | O_NONBLOCK | O_CLOEXEC));
int rc = ::connect(m_soClient, addrRemote.Addr(), addrRemote.AddrSize());
if(IS_NO_ERROR(rc) || IS_IO_PENDING_ERROR())
{
m_nEvents = POLLOUT;
isOK = TRUE;
}
}
else
{
if(::connect(m_soClient, addrRemote.Addr(), addrRemote.AddrSize()) != SOCKET_ERROR)
{
VERIFY(::fcntl_SETFL(m_soClient, O_NOATIME | O_NONBLOCK | O_CLOEXEC));
SetConnected();
if(TRIGGER(FireConnect()) == HR_ERROR)
::WSASetLastError(ENSURE_ERROR_CANCELLED);
else
{
m_nEvents = (SHORT)((m_lsSend.IsEmpty() ? 0 : POLLOUT) | (m_bPaused ? 0 : POLLIN) | POLLRDHUP);
isOK = TRUE;
}
}
}
return isOK;
}
BOOL CTcpClient::ProcessNetworkEvent()
{
BOOL bContinue = TRUE;
WSANETWORKEVENTS events;
int rc = ::WSAEnumNetworkEvents(m_soClient, m_evSocket, &events);
if(rc == SOCKET_ERROR)
{
int code = ::WSAGetLastError();
SetLastError(SE_NETWORK, __FUNCTION__, code);
VERIFY(::WSAResetEvent(m_evSocket));
FireError(m_dwConnID, SO_UNKNOWN, code);
bContinue = FALSE;
}
if(bContinue && events.lNetworkEvents & FD_READ)
{
int iCode = events.iErrorCode[FD_READ_BIT];
if(iCode == 0)
bContinue = ReadData();
else
{
SetLastError(SE_NETWORK, __FUNCTION__, iCode);
FireError(m_dwConnID, SO_RECEIVE, iCode);
bContinue = FALSE;
}
}
if(bContinue && events.lNetworkEvents & FD_WRITE)
{
int iCode = events.iErrorCode[FD_WRITE_BIT];
if(iCode == 0)
bContinue = SendData();
else
{
SetLastError(SE_NETWORK, __FUNCTION__, iCode);
FireError(m_dwConnID, SO_SEND, iCode);
bContinue = FALSE;
}
}
if(m_bAsyncConnect && bContinue && events.lNetworkEvents & FD_CONNECT)
{
int iCode = events.iErrorCode[FD_CONNECT_BIT];
if(iCode == 0)
{
if(::WSAEventSelect(m_soClient, m_evSocket, FD_READ | FD_WRITE | FD_CLOSE) != SOCKET_ERROR)
{
if(FireConnect(m_dwConnID) != HR_ERROR)
m_enState = SS_STARTED;
else
iCode = ERROR_FUNCTION_FAILED;
}
else
iCode = ::WSAGetLastError();
}
if(iCode != 0)
{
SetLastError(SE_NETWORK, __FUNCTION__, iCode);
FireError(m_dwConnID, SO_CONNECT, iCode);
bContinue = FALSE;
}
}
if(bContinue && events.lNetworkEvents & FD_CLOSE)
{
int iCode = events.iErrorCode[FD_CLOSE_BIT];
if(iCode == 0)
FireClose(m_dwConnID);
else
{
SetLastError(SE_NETWORK, __FUNCTION__, iCode);
FireError(m_dwConnID, SO_UNKNOWN, iCode);
}
bContinue = FALSE;
}
return bContinue;
}
EnHandleResult CTcpAgent::TriggerFireConnect(TSocketObj* pSocketObj)
{
CReentrantSpinLock locallock(pSocketObj->csRecv);
return FireConnect(pSocketObj);
}