Hi,
I'm using lwip with FreeRTOS. How can I write a server that accept connections,
but dont disconnect them after transfering data. In other words I must to have
a multiple opened connections waiting for incoming data. Is that true, that I
must to create task for particular connection?
This is my idea (it's working, but uses too much RAM):
// - Server task -----------------------------------
void server(void *parameters)
{
struct netconn *conn = NULL;
struct netconn *newconn = NULL;
conn = netconn_new(NETCONN_TCP);
netconn_bind(conn, NULL, 502);
netconn_listen(conn);
for (;;)
{
newconn = netconn_accept(conn);
// creating new task
xTaskCreate( serviceTask, "svc", STACK, (void*)newconn, PRIORITY, NULL)
)
}
}
// - Connection service task -----------------------------------
void modbusServiceConn(void *conn)
{
struct netbuf *inbuf = NULL;
uint8_t *data = NULL;
int len;
while (inbuf = netconn_recv(conn))
{
netbuf_data(inbuf, (void *)&data, (void *)&len);
// data processing
netbuf_delete(inbuf);
inbuf = NULL;
}
netconn_delete(conn);
conn = NULL;
vTaskDelete( NULL );
}
Regards,
Gregory
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