C++ sendBuffer函数代码示例

void KeyPressHandling(void) {
  char c; 
  if ( kbhit() )  {
    c = getchar();
 
    if ( c == 'c' ) {
      printf("YOU HIT 'c' ...NOW QUITTING\n");
      exit(1);
    }
    if ( c == 'h' ) {
      DEBUG(LOG_NOTICE, "Arming home");
      sendBuffer(&PowerlinkCommand[Pmax_ARMHOME]);
    }
    if ( c == 'd' ) {
      DEBUG(LOG_NOTICE, "Disarm");
      sendBuffer(&PowerlinkCommand[Pmax_DISARM]);
    }  
    if ( c == 'a' ) {
      DEBUG(LOG_NOTICE, "Arming away");
      sendBuffer(&PowerlinkCommand[Pmax_ARMAWAY]);
    }
    if ( c == 'g' ) {
      DEBUG(LOG_NOTICE, "Get Event log");
      sendBuffer(&PowerlinkCommand[Pmax_GETEVENTLOG]);
    }
    if ( c == 'r' ) {
      DEBUG(LOG_NOTICE, "Request Status Update");
      sendBuffer(&PowerlinkCommand[Pmax_REQSTATUS]);
    }
  }
}        

DRIVER_ERROR Hbpl1::FormFeed ()
{

    if (0 != m_numScanLines && m_pbyStripData && 0 != m_nStripSize)
	{
		++m_nBandCount;
		m_pHbpl1Wrapper->Encapsulate(m_pbyStripData, m_nStripSize, m_nStripHeight, (void**)&m_pOutBuffer, &m_OutBuffSize);
		sendBuffer(m_pOutBuffer, m_OutBuffSize);
		memset(m_pbyStripData,0xFF,m_nStripSize);
	}

	while(m_nBandCount < m_numStrips)
	{
		++m_nBandCount;
		m_pHbpl1Wrapper->Encapsulate(m_pbyStripData, m_nStripSize, m_nStripHeight, (void**)&m_pOutBuffer, &m_OutBuffSize);
		sendBuffer(m_pOutBuffer, m_OutBuffSize);
	}

	m_pHbpl1Wrapper->EndPage((void**)&m_pOutBuffer, &m_OutBuffSize);
	sendBuffer(m_pOutBuffer, m_OutBuffSize);
    m_pHbpl1Wrapper->FreeBuffer(m_pOutBuffer,m_OutBuffSize);
	m_nBandCount = 0;

	return NO_ERROR;

}

int CSocket::sendMessage(CBuffer& pSource, char* pIp, int pPort)
{
    if(udp)
        return sendBuffer(pSource, pIp, pPort);
    CBuffer sendBuff;
    sendBuff.writeuShort(pSource.length());
    sendBuff.writeBuffer(pSource);
    return sendBuffer(sendBuff);
}

void NetworkResourceLoader::didReceiveBuffer(Ref<SharedBuffer>&& buffer, int reportedEncodedDataLength)
{
    if (!m_hasReceivedData) {
        RELEASE_LOG_IF_ALLOWED("didReceiveBuffer: Started receiving data (pageID = %" PRIu64 ", frameID = %" PRIu64 ", resourceID = %" PRIu64 ")", m_parameters.webPageID, m_parameters.webFrameID, m_parameters.identifier);
        m_hasReceivedData = true;
    }

#if ENABLE(NETWORK_CACHE)
    ASSERT(!m_cacheEntryForValidation);

    if (m_bufferedDataForCache) {
        // Prevent memory growth in case of streaming data.
        const size_t maximumCacheBufferSize = 10 * 1024 * 1024;
        if (m_bufferedDataForCache->size() + buffer->size() <= maximumCacheBufferSize)
            m_bufferedDataForCache->append(buffer.get());
        else
            m_bufferedDataForCache = nullptr;
    }
#endif
    // FIXME: At least on OS X Yosemite we always get -1 from the resource handle.
    unsigned encodedDataLength = reportedEncodedDataLength >= 0 ? reportedEncodedDataLength : buffer->size();

    m_bytesReceived += buffer->size();
    if (m_bufferedData) {
        m_bufferedData->append(buffer.get());
        m_bufferedDataEncodedDataLength += encodedDataLength;
        startBufferingTimerIfNeeded();
        return;
    }
    sendBuffer(buffer, encodedDataLength);
}

void ConfigChannel::readParamArray(cvg_int id, cvg_char *buffer, cvg_int length) {
	cvg_bool closeChannelOnError = true;
	try {
		ConfigHeader header;
		header.signature = PROTOCOL_CONFIG_SIGNATURE;
		header.info.mode = CONFIG_READ;
		header.info.paramId = id;
		header.info.dataLength = 0;
		ConfigHeader_hton(&header);
		sendBuffer(&header, sizeof(ConfigHeader), true);
		recvBuffer(&header, sizeof(ConfigHeader));
		ConfigHeader_ntoh(&header);
		if ((header.info.mode != CONFIG_WRITE && header.info.mode != CONFIG_NACK) || header.info.paramId != id) {
			throw cvgException("bad response");
		}
		if (header.info.dataLength > length) {
			throw cvgException("data too long");
		}
		if (header.info.mode == CONFIG_NACK) {
			closeChannelOnError = false;
			throw cvgException("bad parameter specification");
		}
		recvBuffer(buffer, length);
	} catch(cvgException e) {
		if (closeChannelOnError) close();
		throw cvgException(cvgString("[ConfigChannel] Error writing parameter ID ") + id + ". Reason: " + e.getMessage());
	}
}

void WorkerProtocolImpl::sendSolution(const SolutionCertificate& solution)
{
    msgpack::sbuffer sbuf;
    msgpack::pack(&sbuf, static_cast<message_id_t>(SOLUTION_REPORT_ID));
    msgpack::pack(&sbuf, solution);
    sendBuffer(socket, sbuf);
}

void Settings::sendSysInfo()
{
	if ( debug )
		{
			Serial.println ( "[I] Getting sysinfo json" );
		}
		
	sendHeader ( 200, "text/json", getSysInfoSize () );
	String  json = "{";
	json += "\"freememory\":\"" + ( String ) ESP.getFreeHeap () + "\",";
	json += "\"deauthpackets\":\"" + ( String ) deauthpackets + "\",";
	json += "\"beaconpackets\":\"" + ( String ) beaconpackets + "\",";
	json += "\"uptime\":\"" + ( String ) millis () + "\",";
	json += "\"ipaddress\":\"" + ( String ) WiFi.localIP ().toString () + "\",";
	json += "\"gateway\":\"" + ( String ) WiFi.gatewayIP ().toString () + "\",";
	json += "\"bootmode\":\"" + ( String ) ESP.getBootMode () + "\",";
	json += "\"bootversion\":\"" + ( String ) ESP.getBootVersion () + "\",";
	json += "\"sdkversion\":\"" + ( String ) ESP.getSdkVersion () + "\",";
	json += "\"chipid\":\"" + ( String ) ESP.getChipId () + "\",";
	json += "\"flashchipid\":\"" + ( String ) ESP.getFlashChipId () + "\",";
	json += "\"flashchipsize\":\"" + ( String ) ESP.getFlashChipSize () + "\",";
	json += "\"flashchiprealsize\":\"" +
		( String ) ESP.getFlashChipRealSize () +
		"\"}";
	sendToBuffer ( json );
	sendBuffer ();
	
	if ( debug )
		{
			Serial.println ( "\n[+] Done" );
		}
}

void Communicator::initiateUsbConnection(uint32_t vendorId, uint32_t productId, uint32_t sessionId)
{
	openUsbDevice((uint16_t)vendorId, (uint16_t)productId); //initUsbDevice((uint16_t)vendorId, (uint16_t)productId);
	if (isInitialized())
	{
		// send back the vendorId and productId
		int len = 4 + 4 + (PTP_HEADER * 2);
		uint8_t *buf = (uint8_t *)malloc(len);
		bzero(&buf[0], len);
		*(uint32_t *)&buf[0] = (uint32_t)htole32(len);

		setPtpHeader(buf, 4, PTP_HEADER + 4 , 0x0002, 0x0001, sessionId);
		*(uint16_t *)&buf[4 + PTP_HEADER] = htole16(mVendorId);
		*(uint16_t *)&buf[4 + PTP_HEADER + 2] = htole16(mProductId);
		syslog(LOG_INFO, "vendor: %d product: %d", mVendorId, mProductId);
		syslog(LOG_INFO, "vendor: %d product: %d", htole16(mVendorId), htole16(mProductId));

		setPtpHeader(buf, 4 + PTP_HEADER + 4, PTP_HEADER , 0x0003, 0x2001, sessionId);

		sendBuffer(buf, len);
		free(buf);

	} else
		sendResponsePacket(isInitialized() ? 0x2001 : 0x2002, sessionId);
}

void packetManager(struct PlinkBuffer  * commandBuffer) {
  if (deFormatBuffer(commandBuffer)) {
    DEBUG(LOG_DEBUG, "Packet received");
    logBuffer(LOG_DEBUG,commandBuffer);         
    int cmd_not_recognized=1;
    int i;
    for (i=0;i<Pmax_NBCOMMAND;i++)  {
      if (findCommand(commandBuffer, &PmaxCommand[i]))  {
        PmaxCommand[i].action(commandBuffer);
        cmd_not_recognized=0;
        break;
      }   
    }  
    if ( cmd_not_recognized==1 )  {
      DEBUG(LOG_INFO, "Packet not recognized");
      logBuffer(LOG_INFO, commandBuffer);
      sendBuffer(&PowerlinkCommand[Pmax_ACK]);    
    }                  
  }                                                         
  else  {
    DEBUG(LOG_ERR, "Packet not correctly formated");
    logBuffer(LOG_ERR,commandBuffer);
  }              
  //command has been treated, reset the commandbuffer
  commandBuffer->size=0;                    
        
  DEBUG(LOG_DEBUG, "End of packet treatment");
}

void PollUGenInternal::processBlock(bool& shouldDelete, const unsigned int blockID, const int /*channel*/) throw()
{
	const int numSamplesToProcess = uGenOutput.getBlockSize();
	float* outputSamples = uGenOutput.getSampleData();
	float* const trigSamples = inputs[Trig].processBlock(shouldDelete, blockID, 0);
	
	for(int sample = 0; sample < numSamplesToProcess; sample++)
	{
		float thisTrig = trigSamples[sample];
		
		if(thisTrig > 0.f && lastTrig <= 0.f)
		{
			const int numChannels = inputs[Input].getNumChannels();
			Buffer poll = Buffer::newClear(numChannels);
			float * const pollSamples = poll.getData(0);
			
			for(int channel = 0; channel < numChannels; channel++)
			{
				float* const inputSamples = inputs[Input].processBlock(shouldDelete, blockID, channel);
				pollSamples[channel] = inputSamples[sample];
			}
			
			sendBuffer(poll);
		}
		
		*outputSamples++ = 0.f;
		lastTrig = thisTrig;
	}
}

DRIVER_ERROR    Hbpl1::Encapsulate (RASTERDATA *InputRaster, bool bLastPlane)
{
    DRIVER_ERROR    err = NO_ERROR;

    ++m_nScanLineCount;

    if ( m_numScanLines == -1)
    {
        if((int)m_JA.media_attributes.printable_height % m_nStripHeight)
        m_numStrips++;
        err = m_pHbpl1Wrapper->InitStripBuffer(m_nScanLineSize * 3 * m_nStripHeight);
    }

    if (m_numScanLines < m_nStripHeight && m_pbyStripData)
    {
        memcpy((BYTE*)&(m_pbyStripData[m_numScanLines * m_nScanLineSize * 3]),InputRaster->rasterdata[COLORTYPE_COLOR],InputRaster->rastersize[COLORTYPE_COLOR]);
        m_numScanLines++;
    }

    if (m_numScanLines >= m_nStripHeight && m_pbyStripData)
    {
        ++m_nBandCount;
        m_pHbpl1Wrapper->Encapsulate(m_pbyStripData, m_nStripSize, m_nStripHeight, (void**)&m_pOutBuffer, &m_OutBuffSize);
        memset(m_pbyStripData,0xFF,m_nStripSize);
        m_numScanLines = 0;
        err = sendBuffer(static_cast<const BYTE *>(m_pOutBuffer), m_OutBuffSize);
        m_pHbpl1Wrapper->FreeBuffer(m_pOutBuffer, m_OutBuffSize);
    }

    return err;
}

void main()
{
  lcdInit();
  spiOn();
  spiOff();
  sendByte(out);
  sendArray(array);
  lcdOn();
  lcdOff();
  sendBuffer();
  sendPart(3, 7, LCD_Buffer);
  clear();
  clearPart(5, 76);
  clearPartColor(5, 76, clBLACK);
  setPenColor(clBLACK);
  setBackColor(clWHITE);
  delay_nsek(40);
  scsOn();
  scsOff();
  i =  getValue(LCD_Buffer, 23, 266);
  setValue(LCD_Buffer, 23, 266, 0x3F);
  setCharge();
  resetCharge();
  drawPixel(5, 5, LCD_Buffer);
  drawVLine(5, 5, 5, LCD_Buffer);
  drawHLine(5, 5, 5, LCD_Buffer);
  drawLine(5, 5, 55, 55, LCD_Buffer);
  drawRect(5, 5, 55, 55, LCD_Buffer);
  drawFillRect(5, 5, 55, 55, clWHITE, LCD_Buffer);
  drawCircle(10, 10, 5, LCD_Buffer);
}

void UDPThread::prepareBuffer() {
  uint8_t *packetBuffer = new uint8_t[m_payloadSize];
  uint8_t *data;
  ssize_t transmittedBytes = 0;
  uint16_t frameCount = 0;
  struct CannelloniDataPacket *dataPacket;
  struct timeval currentTime;

  m_frameBuffer->swapBuffers();
  if (m_sort)
    m_frameBuffer->sortIntermediateBuffer();

  std::list<canfd_frame*> *buffer = m_frameBuffer->getIntermediateBuffer();

  data = packetBuffer+CANNELLONI_DATA_PACKET_BASE_SIZE;
  for (auto it = buffer->begin(); it != buffer->end(); it++) {
    canfd_frame *frame = *it;
    /* Check for packet overflow */
    if ((data-packetBuffer
          +CANNELLONI_FRAME_BASE_SIZE
          +canfd_len(frame)
          +((frame->len & CANFD_FRAME)?sizeof(frame->flags):0)) > m_payloadSize) {
      /* Move all remaining frames back to m_buffer */
      m_frameBuffer->returnIntermediateBuffer(it);
      break;
    }
    canid_t tmp = htonl(frame->can_id);
    memcpy(data, &tmp, sizeof(canid_t));
    /* += 4 */
    data += sizeof(canid_t);
    *data = frame->len;
    /* += 1 */
    data += sizeof(frame->len);
    /* If this is a CAN FD frame, also send the flags */
    if (frame->len & CANFD_FRAME) {
      *data = frame->flags;
      /* += 1 */
      data += sizeof(frame->flags);
    }
    if ((frame->can_id & CAN_RTR_FLAG) == 0) {
      memcpy(data, frame->data, canfd_len(frame));
      data+=canfd_len(frame);
    }
    frameCount++;
  }
  dataPacket = (struct CannelloniDataPacket*) packetBuffer;
  dataPacket->version = CANNELLONI_FRAME_VERSION;
  dataPacket->op_code = DATA;
  dataPacket->seq_no = m_sequenceNumber++;
  dataPacket->count = htons(frameCount);
  transmittedBytes = sendBuffer(packetBuffer, data-packetBuffer);
  if (transmittedBytes != data-packetBuffer) {
    lerror << "UDP Socket error. Error while transmitting" << std::endl;
  } else {
    m_txCount++;
  }
  m_frameBuffer->unlockIntermediateBuffer();
  m_frameBuffer->mergeIntermediateBuffer();
  delete[] packetBuffer;
}

/**
 * addModel() - adds an opulence model to collection
 *
 * @params *model being added
 */
void BufferCourier::addModel(Model *model)
{
    model->id = activeModels.size();

    activeModels.push_back(model);
    sendBuffer(model);
}

Socket::Error Socket::bufferSize(unsigned bufsize)
{
    Error err = receiveBuffer(bufsize);
    if(err == errSuccess)
        err = sendBuffer(bufsize);

    return err;
}