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wait_config_up first steps

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JuliDi 2023-09-08 15:58:47 +02:00
parent 26740bb3ef
commit a4f8d82ef5
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1 changed files with 26 additions and 0 deletions
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26
embassy-net/src/lib.rs
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@ -226,6 +226,7 @@ struct Inner<D: Driver> {
static_v6: Option<StaticConfigV6>,
#[cfg(feature = "dhcpv4")]
dhcp_socket: Option<SocketHandle>,
config_waker: WakerRegistration,
#[cfg(feature = "dns")]
dns_socket: SocketHandle,
#[cfg(feature = "dns")]
@ -297,6 +298,7 @@ impl<D: Driver + 'static> Stack<D> {
static_v6: None,
#[cfg(feature = "dhcpv4")]
dhcp_socket: None,
config_waker: WakerRegistration::new(),
#[cfg(feature = "dns")]
dns_socket: socket.sockets.add(dns::Socket::new(
&[],
@ -363,6 +365,28 @@ impl<D: Driver + 'static> Stack<D> {
v4_up || v6_up
}
/// Get for the network stack to obtainer a valid IP configuration.
pub async fn wait_config_up(&self) {
if self.is_config_up() {
return;
}
poll_fn(|cx| {
self.with_mut(|_, i| {
debug!("poll_fn called");
if self.is_config_up() {
debug!("poll_fn ready");
Poll::Ready(())
} else {
debug!("poll_fn pending");
i.config_waker.register(cx.waker());
Poll::Pending
}
})
})
.await;
}
/// Get the current IPv4 configuration.
///
/// If using DHCP, this will be None if DHCP hasn't been able to
@ -706,6 +730,8 @@ impl<D: Driver + 'static> Inner<D> {
s.sockets
.get_mut::<smoltcp::socket::dns::Socket>(self.dns_socket)
.update_servers(&dns_servers[..]);
s.waker.wake();
}
fn poll(&mut self, cx: &mut Context<'_>, s: &mut SocketStack) {