C++ (Cpp) ClientSession::PostRecv Examples

Example #1

File: ClientSession.cpp Project: NHNNEXT/2014-01-HUDIGAME-EunJaRim

///////////////////////////////////////////////////////////
// 비동기 입력 WSARecv()에 의해서, 입력이 완료 되면 콜백으로 RecvCompletion 실행
void CALLBACK RecvCompletion( DWORD dwError, DWORD cbTransferred, LPWSAOVERLAPPED lpOverlapped, DWORD dwFlags )
{

	// lpOverlapped 인자를 OverlappedIO 형태로 형변환 하면
	// 해당 구조체의 멤버 변수 mObject => ClientSession*
	// 바로 이 포인터가 비동기 입력 WSARecv로 보낸 ClientSession 객체의 주소값
	// PostRecv 멤소드에서 mOverlappedRecv.mObject = this ; 이 부분 참조
	ClientSession* fromClient = static_cast<OverlappedIO*>( lpOverlapped )->m_Object;

	// Overlapped IO 완료 했음. 카운트 감소
	fromClient->DecOverlappedRequest();

	if ( !fromClient->IsConnected() )
		return;

	/// 에러 발생시 해당 세션 종료
	if ( dwError || cbTransferred == 0 )
	{
		LogD( "[Disconnected from:]ClientSession::RecvCompletion dwError \n" );
		fromClient->Disconnect();
		return;
	}

	/// 받은 데이터 처리
	fromClient->OnRead( cbTransferred );

	/// 다시 받기
	if ( false == fromClient->PostRecv() )
	{
		LogD( "[Disconnected from:]ClientSession::RecvCompletion PostRecv \n" );
		fromClient->Disconnect();
		return;
	}
}

Example #2

File: PacketHandling.cpp Project: skdn159/AquaM

void CALLBACK RecvCompletion(DWORD dwError, DWORD cbTransferred, LPWSAOVERLAPPED lpOverlapped, DWORD dwFlags)
{
	ClientSession* fromClient = static_cast<OverlappedIO*>(lpOverlapped)->mObject;

	fromClient->DecRefCount();

	if (!fromClient->IsConnected())
		return;

	/// 에러 발생시 해당 세션 종료
	if (dwError || cbTransferred == 0)
	{
		fromClient->Disconnect();
		return;
	}

	/// 받은 데이터 처리
	fromClient->OnRead(cbTransferred);

	/// 다시 받기
	if (false == fromClient->PostRecv())
	{
		fromClient->Disconnect();
		return;
	}
}

Example #3

File: IoThread.cpp Project: trizdreaming/NHN-NEXT-GameServerProgramming

void IOThread::DoIocpJob()
{
	DWORD dwTransferred = 0;
	OverlappedIOContext* context = nullptr;

	ULONG_PTR completionKey = 0;

	int ret = GetQueuedCompletionStatus( mCompletionPort, &dwTransferred, (PULONG_PTR)&completionKey, (LPOVERLAPPED*)&context, GQCS_TIMEOUT );
	
	if ( completionKey == THREAD_QUIT_KEY )
	{
		mIsContinue = false;
		return;
	}

	ClientSession* session = context ? context->mSessionObject : nullptr;

	if ( ret == 0 || dwTransferred == 0 )
	{
		int gle = GetLastError();

		/// check time out first 
		if ( gle == WAIT_TIMEOUT && context == nullptr )
		{
			return;
		}

		if ( context->mIoType == IO_RECV || context->mIoType == IO_SEND )
		{
			CRASH_ASSERT( nullptr != session );

			/// In most cases in here: ERROR_NETNAME_DELETED(64)

			session->DisconnectRequest( DR_COMPLETION_ERROR );

			DeleteIoContext( context );

			return;
		}
	}

	CRASH_ASSERT( nullptr != session );

	bool completionOk = false;
	switch ( context->mIoType )
	{
		case IO_CONNECT:
			session->ConnectCompletion();
			completionOk = true;
			break;

		case IO_DISCONNECT:
			session->DisconnectCompletion( static_cast<OverlappedDisconnectContext*>( context )->mDisconnectReason );
			completionOk = true;
			break;

		case IO_RECV_ZERO:
			completionOk = session->PostRecv();
			break;

		case IO_SEND:
			session->SendCompletion( dwTransferred );

			if ( context->mWsaBuf.len != dwTransferred )
				printf_s( "Partial SendCompletion requested [%d], sent [%d]\n", context->mWsaBuf.len, dwTransferred );
			else
				completionOk = true;
			
			break;
			
		case IO_RECV:
			session->RecvCompletion( dwTransferred );

			// 일단 테스트용 에코!
			// session->EchoBack();

			completionOk = session->PreRecv();

			break;

		default:
			printf_s( "Unknown I/O Type: %d\n", context->mIoType );
			CRASH_ASSERT( false );
			break;
	}

	if ( !completionOk )
	{
		/// connection closing
		session->DisconnectRequest( DR_IO_REQUEST_ERROR );
	}

	DeleteIoContext( context );

}