233     DWORD bytesRead = 0;  in ReadUartDev()  local
235     ssize_t bytesRead = 0;  in ReadUartDev()  local
238         bytesRead = 0;  in ReadUartDev()
241                                     &bytesRead, &uart.ovRead);  in ReadUartDev()
244                 bytesRead = 0;  in ReadUartDev()
249                 if (!GetOverlappedResultEx(uart.devUartHandle, &uart.ovRead, &bytesRead,  in ReadUartDev()
254                         totalBytesRead += bytesRead;  in ReadUartDev()
256                                   bytesRead, totalBytesRead);  in ReadUartDev()
262                         totalBytesRead += bytesRead;  in ReadUartDev()
263                         WRITE_LOG(LOG_DEBUG, "%s error timeout. %u %zd", __FUNCTION__, bytesRead,  in ReadUartDev()
326             bytesRead = read(uart.devUartHandle, uartReadBuffer, sizeof(uartReadBuffer));  in ReadUartDev()
327             if (bytesRead <= 0) {  in ReadUartDev()
329                 WRITE_LOG(LOG_WARN, "%s:read failed! %zd:%d", __FUNCTION__, bytesRead, errno);  in ReadUartDev()
334         if (bytesRead > 0) {  in ReadUartDev()
335             readBuf.insert(readBuf.end(), uartReadBuffer, uartReadBuffer + bytesRead);  in ReadUartDev()
336             totalBytesRead += bytesRead;  in ReadUartDev()
339              bytesRead == 0); // if caller know how many bytes it want  in ReadUartDev()