QSocketNotifier class's internal mechanism

[lzpmail]

hi, i use QSocketNotifier to monitor a serial port, this port mainly to receive data, but i found it use cpu(ARM9) 20-30%, so i feel surprising, this is why, so i want to know this class's internal mechanism, please help, thanks.

[ChrisW67]

Read the source code for yourself.

[lzpmail]

ok, i know, thank you.