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Wait for tx buffers to be available for request fn

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This commit is contained in:
Ulf Lilleengen 2024-12-04 14:24:18 +01:00
parent af02310edc
commit aa1bd827ca
1 changed files with 17 additions and 1 deletions
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18
embassy-net-nrf91/src/lib.rs
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@ -209,6 +209,7 @@ async fn new_internal<'a>(
tx_seq_no: 0,
tx_buf_used: [false; TX_BUF_COUNT],
tx_waker: WakerRegistration::new(),
trace_chans: Vec::new(),
trace_check: PointerChecker {
@ -311,6 +312,7 @@ struct StateInner {
tx_seq_no: u16,
tx_buf_used: [bool; TX_BUF_COUNT],
tx_waker: WakerRegistration,
trace_chans: Vec<TraceChannelInfo, TRACE_CHANNEL_COUNT>,
trace_check: PointerChecker,
@ -522,6 +524,7 @@ impl StateInner {
msg.data = ptr::null_mut();
msg.data_len = 0;
self.tx_buf_used[buf_idx] = false;
self.tx_waker.wake();
Err(e)
} else {
Ok(())
@ -586,6 +589,7 @@ impl StateInner {
);
}
self.tx_buf_used[idx] = false;
self.tx_waker.wake();
}
fn handle_data(&mut self, msg: &Message, ch: &mut ch::Runner<MTU>) {
@ -761,10 +765,22 @@ impl<'a> Control<'a> {
state.next_req_serial = state.next_req_serial.wrapping_add(1);
}
drop(state); // don't borrow state across awaits.
msg.param[0..4].copy_from_slice(&req_serial.to_le_bytes());
unwrap!(state.send_message(msg, req_data));
poll_fn(|cx| {
let mut state = self.state.borrow_mut();
state.tx_waker.register(cx.waker());
match state.send_message(msg, req_data) {
Ok(_) => Poll::Ready(()),
Err(NoFreeBufs) => Poll::Pending,
}
})
.await;
// Setup the pending request state.
let mut state = self.state.borrow_mut();
let (req_slot_idx, req_slot) = state
.requests
.iter_mut()