Function tcpip_callback

components/net/lwip/lwip-2.1.2/src/api/tcpip.c:308–326

* @ingroup lwip_os * Call a specific function in the thread context of * tcpip_thread for easy access synchronization. * A function called in that way may access lwIP core code * without fearing concurrent access. * Blocks until the request is posted. * Must not be called from interrupt context! * * @param function the function to call * @param ctx parameter passed to f * @return ERR_OK

 * @see tcpip_try_callback
 */
err_t
tcpip_callback(tcpip_callback_fn function, void *ctx)
{
  struct tcpip_msg *msg;

  LWIP_ASSERT("Invalid mbox", sys_mbox_valid_val(tcpip_mbox));

  msg = (struct tcpip_msg *)memp_malloc(MEMP_TCPIP_MSG_API);
  if (msg == NULL) {
    return ERR_MEM;
  }

  msg->type = TCPIP_MSG_CALLBACK;
  msg->msg.cb.function = function;
  msg->msg.cb.ctx = ctx;

  sys_mbox_post(&tcpip_mbox, msg);
  return ERR_OK;
}

/**
 * @ingroup lwip_os