C++ TSockSys::GetSockEvent方法代码示例

void TSockSys::OnTimeOut(uv_timer_t* TimerHnd, int Status) {
	// check we have timer
	IAssert(SockSys.IsTimer((uint64)TimerHnd));
	// get socket id
	const uint64 SockId = SockSys.TimerHndToSockIdH.GetDat((uint64)TimerHnd);
	IAssert(SockSys.IsSock(SockId));
	// get socket event
	const uint64 SockHnd = (uint64)SockSys.SockIdToHndH.GetDat(SockId);
	const uint64 SockEventId = SockSys.SockHndToEventIdH.GetDat((uint64)SockHnd);
	PSockEvent SockEvent;
	if (SockSys.IsSockEvent(SockEventId)) {
		SockEvent = SockSys.GetSockEvent(SockEventId);
		// execute callback
		if (Status == 0) {
			SockEvent->OnTimeOut(SockId);
		} else {
			TStr ErrMsg = (Status == -1) ? 
				"SockSys.OnTimeOut: " + SockSys.GetLastErr() : 
				"SockSys.OnTimeOut: Error in socket timeout";
			SockEvent->OnError(SockId, Status, ErrMsg);
		}
	} else {
		SaveToErrLog("SockSys.OnTimeOut: Socket without SockEvent");
	}
	// cleanup
	uv_close((uv_handle_t*)TimerHnd, NULL);
	// remove shortcuts
	SockSys.SockIdToTimerHndH.DelKey(SockId);
	SockSys.TimerHndToSockIdH.DelKey((uint64)TimerHnd);
}

void TSockSys::OnWrite(uv_write_t *WriteHnd, int Status) {
	// cast to our write request object to get access to buffer
	uv_write_req_t* _WriteHnd = (uv_write_req_t*)WriteHnd;
	// get socket handle
	uv_tcp_t* SockHnd = (uv_tcp_t*)WriteHnd->handle;
	IAssert(SockSys.IsSockHnd((uint64)SockHnd));
	// free buffer and write handle
	free(_WriteHnd->Buffer.base);
	free(_WriteHnd);
	// get socket id
	const uint64 SockId = SockSys.SockHndToIdH.GetDat((uint64)SockHnd);
	IAssert(SockSys.IsSock(SockId));
	// get socket event
	const uint64 SockEventId = SockSys.SockHndToEventIdH.GetDat((uint64)SockHnd);
	PSockEvent SockEvent;
	if (SockSys.IsSockEvent(SockEventId)) {
		SockEvent = SockSys.GetSockEvent(SockEventId);
	} else {
		SaveToErrLog("SockSys.OnWrite: Socket without SockEvent");
		return;
	}
	// execute callback
	if (Status == 0) {
		SockEvent->OnWrite(SockId);
	} else {
		TStr ErrMsg = (Status == -1) ? 
			"SockSys.OnWrite: " + SockSys.GetLastErr() : 
			"SockSys.OnWrite: Error writing to socket";
		SockEvent->OnError(SockId, Status, ErrMsg);
	}
}

void TSockSys::OnAccept(uv_stream_t* ServerSockHnd, int Status) {
	// get socket handle
	uv_tcp_t* SockHnd = (uv_tcp_t*)ServerSockHnd;
	IAssert(SockSys.IsSockHnd((uint64)SockHnd));
	// get socket id
	const uint64 SockId = SockSys.SockHndToIdH.GetDat((uint64)SockHnd);
	IAssert(SockSys.IsSock(SockId));
	// get socket event
	const uint64 SockEventId = SockSys.SockHndToEventIdH.GetDat((uint64)SockHnd);
	PSockEvent SockEvent;
	if (SockSys.IsSockEvent(SockEventId)) {
		SockEvent = SockSys.GetSockEvent(SockEventId);
	} else {
		SaveToErrLog("SockSys.OnAccept: Socket without SockEvent");
		return;
	}
	// check for success status
	if (Status == 0) {
		// create a new socket for client connection
		PSock ClientSock = TSock::New(SockEvent);
		// get client socket handle
		uv_tcp_t* ClientSockHnd = SockSys.SockIdToHndH.GetDat(ClientSock->GetSockId());
		// accept request
		const int AcceptResCd = uv_accept(ServerSockHnd, (uv_stream_t*)ClientSockHnd);
		// start listening for incoming data
		if (AcceptResCd == 0) {
			int ReadStartResCd = uv_read_start((uv_stream_t*)ClientSockHnd, TSockSys::OnAlloc, TSockSys::OnRead);
			// execute callback
			if (ReadStartResCd == 0) {
				SockEvent->OnAccept(ClientSock->GetSockId(), ClientSock);
			} else {
				TStr ErrMsg = (Status == -1) ? 
					"SockSys.OnAccept: Error starting read " + SockSys.GetLastErr() : 
					"SockSys.OnAccept: Error starting read";
				SockEvent->OnError(SockId, ReadStartResCd, ErrMsg);
			}
		} else {
			// handle errors
			TStr ErrMsg = (Status == -1) ? 
				"SockSys.OnAccept: Error accepting new connection " + SockSys.GetLastErr() : 
				"SockSys.OnAccept: Error accepting new connection";
			SockEvent->OnError(SockId, AcceptResCd, ErrMsg);
		}
	} else {
		TStr ErrMsg = (Status == -1) ? 
			"SockSys.OnAccept: Error connecting" + SockSys.GetLastErr() : 
			"SockSys.OnAccept: Error connecting";
		SockEvent->OnError(SockId, Status, ErrMsg);
	}
}

void TSockSys::OnRead(uv_stream_t* SockHnd, ssize_t BufferLen, uv_buf_t Buffer) {
	//TODO: check if we need to close _SockHnd
	//uv_tcp_t* _SockHnd = (uv_tcp_t*)SockHnd;
	// get socket handle
	IAssert(SockSys.IsSockHnd((uint64)SockHnd));
	// get socket id
	const uint64 SockId = SockSys.SockHndToIdH.GetDat((uint64)SockHnd);
	IAssert(SockSys.IsSock(SockId));
	// get socket event
	const uint64 SockEventId = SockSys.SockHndToEventIdH.GetDat((uint64)SockHnd);
	PSockEvent SockEvent;
	if (SockSys.IsSockEvent(SockEventId)) {
		SockEvent = SockSys.GetSockEvent(SockEventId);
	} else {
		// cleanup (using delete as it was created in OnAlloc with new)
		delete[] Buffer.base;
		SaveToErrLog("SockSys.OnRead: Socket without SockEvent");
		return;
	}
	// execute callback
	if (BufferLen > 0) {
		// we got data, move the ownership of buffer to TMIn
		PSIn SIn = TMIn::New(Buffer.base, (int)BufferLen, true);
		// send
		SockEvent->OnRead(SockId, SIn);		
	} else {
		uv_err_code Status = uv_last_error(SockSys.Loop).code;
		// no data, might be error or end of stream
		if (Status == UV_EOF) {
			// no more data, close the socket handle
			SockEvent->OnReadEof(SockId);
			SockSys.DelIfSockTimer(SockId);
		} else if (Status == UV_EAGAIN) {
     		// we'll wait
        } else {
			// error
			TStr ErrMsg = "SockSys.OnRead: " + SockSys.GetLastErr();
			SockEvent->OnError(SockId, Status, ErrMsg);
		}
		// cleanup (using delete as it was created in OnAlloc with new)
		delete[] Buffer.base;
	}
}

void TSockSys::OnClose(uv_handle_t* SockHnd) {
	// check if we know about the socket
	if (SockSys.IsSockHnd((uint64)SockHnd)) {
		// get socket id
		const uint64 SockId = SockSys.SockHndToIdH.GetDat((uint64)SockHnd);
		// execute callback
		const uint64 SockEventId = SockSys.SockHndToEventIdH.GetDat((uint64)SockHnd);
		if (SockSys.IsSockEvent(SockEventId)) {
			PSockEvent SockEvent = SockSys.GetSockEvent(SockEventId);
			SockEvent->OnClose(SockId);
		}
		// delete socket shortcuts
		SockSys.DelIfSockTimer(SockId);
		SockSys.SockIdToHndH.DelKey(SockId);
		SockSys.SockHndToIdH.DelKey((uint64)SockHnd);
		SockSys.SockHndToEventIdH.DelKey((uint64)SockHnd);
		// marke note that it's already closed
		SockSys.ClosedSockIdSet.DelIfKey(SockId);
	}
}

void TSockSys::OnConnect(uv_connect_t* ConnectHnd, int Status) {
	// get socket handle
	uv_tcp_t* SockHnd = (uv_tcp_t*)ConnectHnd->handle;
	IAssert(SockSys.IsSockHnd((uint64)SockHnd));
	// cleanup
	free(ConnectHnd);
	// get socket id
	const uint64 SockId = SockSys.SockHndToIdH.GetDat((uint64)SockHnd);
	IAssert(SockSys.IsSock(SockId));
	// get socket event
	const uint64 SockEventId = SockSys.SockHndToEventIdH.GetDat((uint64)SockHnd);
	PSockEvent SockEvent;
	if (SockSys.IsSockEvent(SockEventId)) {
		SockEvent = SockSys.GetSockEvent(SockEventId);
	} else {
		SaveToErrLog("SockSys.OnConnect: Socket without SockEvent");
		return;
	}
	// execute callback
	if (Status == 0) {
		SockEvent->OnConnect(SockId);
	} else {
		TStr ErrMsg = (Status == -1) ? 
			"SockSys.OnConnect: " + SockSys.GetLastErr() : 
			"SockSys.OnConnect: Error connecting";
		SockEvent->OnError(SockId, Status, ErrMsg);
		return;
	}
	// start listening for incoming data
	int ResCd = uv_read_start((uv_stream_t*)SockHnd, TSockSys::OnAlloc, TSockSys::OnRead);
	// check for errors
	if (ResCd != 0) {
		TStr ErrMsg = (Status == -1) ? 
			"SockSys.OnConnect: " + SockSys.GetLastErr() : 
			"SockSys.OnConnect: Error establishing read callbacks";
		SockEvent->OnError(SockId, ResCd, ErrMsg);
	}
}