Industrial RFID readers send thousands of tags per second. Using non-blocking I/O with large buffers is mandatory.
While the term "fd" is UNIX-centric, the concept applies to Windows via CreateFile with FILE_FLAG_OVERLAPPED for COM ports. Achieving on Windows means: serialfd com top
Anirban sighed. To his mother, he wasn't a senior systems engineer; he was the person who fixed the "internet box" and found the "top" shows. He took the tablet, his mind still half-anchored in his C++ code. Industrial RFID readers send thousands of tags per second