[lwip-users] How to handle the passive FIN when waiting datas

[inner T]

Hi All

    I got a problem about handle the passive close. After connect to the server, I have a Client thread like this:

// Client thread

uint8 buff[buff_LEN];

......

for(;;) {

......

llen = lwip_recv( sockClient, buff, buff_LEN, 0 ); // wait for data

if( llen ) {

// some data recived, handle data

}

// do other works...

......

}

......

   It works good except this problem:

   I found that lwip_recv() will suspend Client thread at sys_arch_mbox_fetch() in function netconn_recv() of api_lib.c line 347, wait the message forever. In this situation, I have no idea how to handle the passive close. The tcp_thread() have acked the first FIN, change the tcp_pcb->state to CLOSE_WAIT.

   I'm less experence in multi-threaded programing, If there is any other way to implement my Client thread, please tell me, thanks.

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