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CC3220: making SlNetSock_recv return 0 when no data is availible

Netanel Unger
Expert 1190 points
Part Number: CC3220


Hi all,

I would like to keep using the SlNet library but it's not async and receiving data make the task stuck.

There is a solution that can change SlNetSock_recv so it will return 0 (len=0) when there is no data?

Thanks.

  • 0
    TI__Mastermind 35070 points
    Hi Netanel,

    Seems like the socket you set up is a blocking socket.

    Depending on your application needs, you could enable a receive timeout with blocking socket, OR you could use non-blocking sockets.

    In either case, if the there is no data to receive, SlNetSock_recv would return error code (negative value).


    Regards,
    Toby
  • 0 in reply to Toby
    Expert 1190 points
    took me a while to find it:

    struct SlNetSock_Timeval_t timeVal;
    timeVal.tv_sec = 1; // Seconds
    timeVal.tv_usec = 0; // Microseconds. 10000 microseconds resolution
    SlNetSock_setOpt(ssock, SLNETSOCK_LVL_SOCKET, SLNETSOCK_OPSOCK_RCV_TIMEO, (uint8_t *)&timeVal, sizeof(timeVal)); // Enable receive timeout


    found in slnetsock.h


    Thanks for navigate me to the word "timeout" never thought of it :)