LwIP netconn_recv() timeout

Eli Mordel

Hi,

I'm running tyhe mcu_plus_sdk_am243x SDK with tcp server example.

I see that there's a while ((err = netconn_recv(pClientConn, &buf)) == ERR_OK) loop and it works ok.

I would like to add a timeout because netconn_recv is blocking so I use sys_timeout(500, my_timeout_callback, pClientConn);

I get an error from LWIP_ASSERT_CORE_LOCKED();

I've tried to add sys_mutex_lock(&core_lock); but I don't have a core_lock variable.

Please advise on how to add a timeout to netconn_recv,

Thanks,

Eli

over 2 years ago

0 Shaunak Deshpande over 2 years ago

TI__Mastermind 18142 points

Hi,

To set a timeout to netconn_recv, the following API has been defined in the LwiP-Stack

/** Set the receive timeout in milliseconds */
#define netconn_set_recvtimeout(conn, timeout)      ((conn)->recv_timeout = (timeout))

In the function "AppTcp_ServerTask()", before you set the netconn in listen mode, you can set the timeout (for example, netconn_set_recvtimeout(netconn_name, time_in_ms), and test if it works as expected.

Regards.
Shaunak

0 Eli Mordel over 2 years ago in reply to Shaunak Deshpande

Expert 1385 points

Thanks !

Code Composer Studio™︎

Code Composer Studio forum

LwIP netconn_recv() timeout