non blocking TCP in nrf9160

RE: non blocking TCP in nrf9160

Håkon Alseth — Wed, 06 May 2020 14:31:50 GMT

Hi,

I'm glad to hear that you found a workaround.

[quote user="vchhabra"]Just wondering if there is any way to get an interrupt when new data is available for reading or do we have to poll.[/quote]

A thread with poll() is the way to go. This will essentially be triggered from the modem (via a interrupt) when new data is received (or timeout occurs).

Kind regards,

Håkon

RE: non blocking TCP in nrf9160

vchhabra — Wed, 06 May 2020 13:30:59 GMT

yes, setting it is not the issue. I figured it out a little while after posting the ticket. Just wondering if there is any way to get an interrupt when new data is available for reading or do we have to poll.

RE: non blocking TCP in nrf9160

Håkon Alseth — Wed, 06 May 2020 12:38:12 GMT

Hi,

Are you setting up the socket to be non-blocking via fcntl()?

int flags = fcntl(client_fd, F_GETFL);
fcntl(my_fd, F_SETFL, flags | O_NONBLOCK);

Kind regards,

Håkon