[lwip-users] shared struct netconn

[Martin Velek]

Hello,

has anyone experience with using one netconn structure  for:
- waiting for data in one task and
- sending data in the second?

It sometimes works but sometimes the program ends in a critical
handler(Cortex-M3 chip). This error is very hard to trace a I cannot
find out why.

lwip 1.3.1, rtos FreeRTOS, Lm3s9b92.

Thank you,
Martin

// Simple example
static struct netconn * sharedNetconn;

void TASK1(void * param)
{
 struct netbuf * sendUDPNetBuf;
 while(1){
    // create and fill netbuf
    WAIT(500MS);
     netconn_sendto(sharedNetconn,sendUDPNetBuf,....);
 }
}

void TASK2(void * param)
{
struct netbuf * receiveUDPNetBuf;
 sharedNetconn = netconn_new();
 // other init stuff

 while(1)
 {
  receiveUDPNetBuf = netconn_recv(sharedNetconn );
  netbuf_delete(receiveUDPNetBuf);
 }
}