openthread_fuchsia/backing/
reset.rs

1// Copyright 2022 The Fuchsia Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5use super::*;
6use std::sync::atomic::Ordering;
7
8/// Error type indicating that a platform reset has been requested.
9#[derive(thiserror::Error, Debug, Hash)]
10#[error("PlatformResetRequested")]
11pub struct PlatformResetRequested {}
12
13impl PlatformBacking {
14    fn on_plat_reset(&self, instance: Option<&ot::Instance>) {
15        #[no_mangle]
16        unsafe extern "C" fn otPlatReset(instance: *mut otsys::otInstance) {
17            PlatformBacking::on_plat_reset(
18                // SAFETY: Must only be called from OpenThread thread,
19                PlatformBacking::as_ref(),
20                // SAFETY: `instance` must be a pointer to a valid `otInstance`,
21                //         which is guaranteed by the caller.
22                ot::Instance::ref_from_ot_ptr(instance),
23            )
24        }
25
26        if let Some(instance) = instance {
27            instance.thread_set_enabled(false).unwrap();
28            instance.ip6_set_enabled(false).unwrap();
29        }
30        // end the stream
31        self.is_platform_reset_requested.store(true, Ordering::SeqCst);
32        info!("on_plat_reset for {:?}", instance);
33    }
34}