fidl_fuchsia_hardware_google_nanohub/

fidl_fuchsia_hardware_google_nanohub.rs

// WARNING: This file is machine generated by fidlgen.

#![warn(clippy::all)]
#![allow(unused_parens, unused_mut, unused_imports, nonstandard_style)]

use bitflags::bitflags;
use fidl::client::QueryResponseFut;
use fidl::encoding::{MessageBufFor, ProxyChannelBox, ResourceDialect};
use fidl::endpoints::{ControlHandle as _, Responder as _};
pub use fidl_fuchsia_hardware_google_nanohub_common::*;
use futures::future::{self, MaybeDone, TryFutureExt};
use zx_status;

#[derive(Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct DeviceDownloadFirmwareRequest {
    pub firmware: fidl::Vmo,
    pub offset: u64,
}

impl fidl::Standalone<fidl::encoding::DefaultFuchsiaResourceDialect>
    for DeviceDownloadFirmwareRequest
{
}

#[derive(Debug, Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub struct DeviceMarker;

impl fidl::endpoints::ProtocolMarker for DeviceMarker {
    type Proxy = DeviceProxy;
    type RequestStream = DeviceRequestStream;
    #[cfg(target_os = "fuchsia")]
    type SynchronousProxy = DeviceSynchronousProxy;

    const DEBUG_NAME: &'static str = "fuchsia.hardware.google.nanohub.Device";
}
impl fidl::endpoints::DiscoverableProtocolMarker for DeviceMarker {}
pub type DeviceDownloadFirmwareResult = Result<(), i32>;

pub trait DeviceProxyInterface: Send + Sync {
    type DownloadFirmwareResponseFut: std::future::Future<Output = Result<DeviceDownloadFirmwareResult, fidl::Error>>
        + Send;
    fn r#download_firmware(
        &self,
        firmware: fidl::Vmo,
        offset: u64,
    ) -> Self::DownloadFirmwareResponseFut;
}
#[derive(Debug)]
#[cfg(target_os = "fuchsia")]
pub struct DeviceSynchronousProxy {
    client: fidl::client::sync::Client,
}

#[cfg(target_os = "fuchsia")]
impl fidl::endpoints::SynchronousProxy for DeviceSynchronousProxy {
    type Proxy = DeviceProxy;
    type Protocol = DeviceMarker;

    fn from_channel(inner: fidl::Channel) -> Self {
        Self::new(inner)
    }

    fn into_channel(self) -> fidl::Channel {
        self.client.into_channel()
    }

    fn as_channel(&self) -> &fidl::Channel {
        self.client.as_channel()
    }
}

#[cfg(target_os = "fuchsia")]
impl DeviceSynchronousProxy {
    pub fn new(channel: fidl::Channel) -> Self {
        let protocol_name = <DeviceMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME;
        Self { client: fidl::client::sync::Client::new(channel, protocol_name) }
    }

    pub fn into_channel(self) -> fidl::Channel {
        self.client.into_channel()
    }

    /// Waits until an event arrives and returns it. It is safe for other
    /// threads to make concurrent requests while waiting for an event.
    pub fn wait_for_event(
        &self,
        deadline: zx::MonotonicInstant,
    ) -> Result<DeviceEvent, fidl::Error> {
        DeviceEvent::decode(self.client.wait_for_event(deadline)?)
    }

    /// Request to sent to nanohub to load the firmware.
    pub fn r#download_firmware(
        &self,
        mut firmware: fidl::Vmo,
        mut offset: u64,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<DeviceDownloadFirmwareResult, fidl::Error> {
        let _response = self.client.send_query::<
            DeviceDownloadFirmwareRequest,
            fidl::encoding::ResultType<fidl::encoding::EmptyStruct, i32>,
        >(
            (firmware, offset,),
            0x7bba8137e24661e5,
            fidl::encoding::DynamicFlags::empty(),
            ___deadline,
        )?;
        Ok(_response.map(|x| x))
    }
}

#[cfg(target_os = "fuchsia")]
impl From<DeviceSynchronousProxy> for zx::Handle {
    fn from(value: DeviceSynchronousProxy) -> Self {
        value.into_channel().into()
    }
}

#[cfg(target_os = "fuchsia")]
impl From<fidl::Channel> for DeviceSynchronousProxy {
    fn from(value: fidl::Channel) -> Self {
        Self::new(value)
    }
}

#[derive(Debug, Clone)]
pub struct DeviceProxy {
    client: fidl::client::Client<fidl::encoding::DefaultFuchsiaResourceDialect>,
}

impl fidl::endpoints::Proxy for DeviceProxy {
    type Protocol = DeviceMarker;

    fn from_channel(inner: ::fidl::AsyncChannel) -> Self {
        Self::new(inner)
    }

    fn into_channel(self) -> Result<::fidl::AsyncChannel, Self> {
        self.client.into_channel().map_err(|client| Self { client })
    }

    fn as_channel(&self) -> &::fidl::AsyncChannel {
        self.client.as_channel()
    }
}

impl DeviceProxy {
    /// Create a new Proxy for fuchsia.hardware.google.nanohub/Device.
    pub fn new(channel: ::fidl::AsyncChannel) -> Self {
        let protocol_name = <DeviceMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME;
        Self { client: fidl::client::Client::new(channel, protocol_name) }
    }

    /// Get a Stream of events from the remote end of the protocol.
    ///
    /// # Panics
    ///
    /// Panics if the event stream was already taken.
    pub fn take_event_stream(&self) -> DeviceEventStream {
        DeviceEventStream { event_receiver: self.client.take_event_receiver() }
    }

    /// Request to sent to nanohub to load the firmware.
    pub fn r#download_firmware(
        &self,
        mut firmware: fidl::Vmo,
        mut offset: u64,
    ) -> fidl::client::QueryResponseFut<
        DeviceDownloadFirmwareResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        DeviceProxyInterface::r#download_firmware(self, firmware, offset)
    }
}

impl DeviceProxyInterface for DeviceProxy {
    type DownloadFirmwareResponseFut = fidl::client::QueryResponseFut<
        DeviceDownloadFirmwareResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#download_firmware(
        &self,
        mut firmware: fidl::Vmo,
        mut offset: u64,
    ) -> Self::DownloadFirmwareResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<DeviceDownloadFirmwareResult, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::ResultType<fidl::encoding::EmptyStruct, i32>,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x7bba8137e24661e5,
            >(_buf?)?;
            Ok(_response.map(|x| x))
        }
        self.client
            .send_query_and_decode::<DeviceDownloadFirmwareRequest, DeviceDownloadFirmwareResult>(
                (firmware, offset),
                0x7bba8137e24661e5,
                fidl::encoding::DynamicFlags::empty(),
                _decode,
            )
    }
}

pub struct DeviceEventStream {
    event_receiver: fidl::client::EventReceiver<fidl::encoding::DefaultFuchsiaResourceDialect>,
}

impl std::marker::Unpin for DeviceEventStream {}

impl futures::stream::FusedStream for DeviceEventStream {
    fn is_terminated(&self) -> bool {
        self.event_receiver.is_terminated()
    }
}

impl futures::Stream for DeviceEventStream {
    type Item = Result<DeviceEvent, fidl::Error>;

    fn poll_next(
        mut self: std::pin::Pin<&mut Self>,
        cx: &mut std::task::Context<'_>,
    ) -> std::task::Poll<Option<Self::Item>> {
        match futures::ready!(futures::stream::StreamExt::poll_next_unpin(
            &mut self.event_receiver,
            cx
        )?) {
            Some(buf) => std::task::Poll::Ready(Some(DeviceEvent::decode(buf))),
            None => std::task::Poll::Ready(None),
        }
    }
}

#[derive(Debug)]
pub enum DeviceEvent {
    #[non_exhaustive]
    _UnknownEvent {
        /// Ordinal of the event that was sent.
        ordinal: u64,
    },
}

impl DeviceEvent {
    /// Decodes a message buffer as a [`DeviceEvent`].
    fn decode(
        mut buf: <fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc,
    ) -> Result<DeviceEvent, fidl::Error> {
        let (bytes, _handles) = buf.split_mut();
        let (tx_header, _body_bytes) = fidl::encoding::decode_transaction_header(bytes)?;
        debug_assert_eq!(tx_header.tx_id, 0);
        match tx_header.ordinal {
            _ if tx_header.dynamic_flags().contains(fidl::encoding::DynamicFlags::FLEXIBLE) => {
                Ok(DeviceEvent::_UnknownEvent { ordinal: tx_header.ordinal })
            }
            _ => Err(fidl::Error::UnknownOrdinal {
                ordinal: tx_header.ordinal,
                protocol_name: <DeviceMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
            }),
        }
    }
}

/// A Stream of incoming requests for fuchsia.hardware.google.nanohub/Device.
pub struct DeviceRequestStream {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
    is_terminated: bool,
}

impl std::marker::Unpin for DeviceRequestStream {}

impl futures::stream::FusedStream for DeviceRequestStream {
    fn is_terminated(&self) -> bool {
        self.is_terminated
    }
}

impl fidl::endpoints::RequestStream for DeviceRequestStream {
    type Protocol = DeviceMarker;
    type ControlHandle = DeviceControlHandle;

    fn from_channel(channel: ::fidl::AsyncChannel) -> Self {
        Self { inner: std::sync::Arc::new(fidl::ServeInner::new(channel)), is_terminated: false }
    }

    fn control_handle(&self) -> Self::ControlHandle {
        DeviceControlHandle { inner: self.inner.clone() }
    }

    fn into_inner(
        self,
    ) -> (::std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>, bool)
    {
        (self.inner, self.is_terminated)
    }

    fn from_inner(
        inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
        is_terminated: bool,
    ) -> Self {
        Self { inner, is_terminated }
    }
}

impl futures::Stream for DeviceRequestStream {
    type Item = Result<DeviceRequest, fidl::Error>;

    fn poll_next(
        mut self: std::pin::Pin<&mut Self>,
        cx: &mut std::task::Context<'_>,
    ) -> std::task::Poll<Option<Self::Item>> {
        let this = &mut *self;
        if this.inner.check_shutdown(cx) {
            this.is_terminated = true;
            return std::task::Poll::Ready(None);
        }
        if this.is_terminated {
            panic!("polled DeviceRequestStream after completion");
        }
        fidl::encoding::with_tls_decode_buf::<_, fidl::encoding::DefaultFuchsiaResourceDialect>(
            |bytes, handles| {
                match this.inner.channel().read_etc(cx, bytes, handles) {
                    std::task::Poll::Ready(Ok(())) => {}
                    std::task::Poll::Pending => return std::task::Poll::Pending,
                    std::task::Poll::Ready(Err(zx_status::Status::PEER_CLOSED)) => {
                        this.is_terminated = true;
                        return std::task::Poll::Ready(None);
                    }
                    std::task::Poll::Ready(Err(e)) => {
                        return std::task::Poll::Ready(Some(Err(fidl::Error::ServerRequestRead(
                            e.into(),
                        ))))
                    }
                }

                // A message has been received from the channel
                let (header, _body_bytes) = fidl::encoding::decode_transaction_header(bytes)?;

                std::task::Poll::Ready(Some(match header.ordinal {
                    0x7bba8137e24661e5 => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            DeviceDownloadFirmwareRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<DeviceDownloadFirmwareRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = DeviceControlHandle { inner: this.inner.clone() };
                        Ok(DeviceRequest::DownloadFirmware {
                            firmware: req.firmware,
                            offset: req.offset,

                            responder: DeviceDownloadFirmwareResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    _ if header.tx_id == 0
                        && header
                            .dynamic_flags()
                            .contains(fidl::encoding::DynamicFlags::FLEXIBLE) =>
                    {
                        Ok(DeviceRequest::_UnknownMethod {
                            ordinal: header.ordinal,
                            control_handle: DeviceControlHandle { inner: this.inner.clone() },
                            method_type: fidl::MethodType::OneWay,
                        })
                    }
                    _ if header
                        .dynamic_flags()
                        .contains(fidl::encoding::DynamicFlags::FLEXIBLE) =>
                    {
                        this.inner.send_framework_err(
                            fidl::encoding::FrameworkErr::UnknownMethod,
                            header.tx_id,
                            header.ordinal,
                            header.dynamic_flags(),
                            (bytes, handles),
                        )?;
                        Ok(DeviceRequest::_UnknownMethod {
                            ordinal: header.ordinal,
                            control_handle: DeviceControlHandle { inner: this.inner.clone() },
                            method_type: fidl::MethodType::TwoWay,
                        })
                    }
                    _ => Err(fidl::Error::UnknownOrdinal {
                        ordinal: header.ordinal,
                        protocol_name:
                            <DeviceMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
                    }),
                }))
            },
        )
    }
}

/// Client is expected to pass the vmo handle to nanohub when issuing a DownloadFirmware request.
#[derive(Debug)]
pub enum DeviceRequest {
    /// Request to sent to nanohub to load the firmware.
    DownloadFirmware {
        firmware: fidl::Vmo,
        offset: u64,
        responder: DeviceDownloadFirmwareResponder,
    },
    /// An interaction was received which does not match any known method.
    #[non_exhaustive]
    _UnknownMethod {
        /// Ordinal of the method that was called.
        ordinal: u64,
        control_handle: DeviceControlHandle,
        method_type: fidl::MethodType,
    },
}

impl DeviceRequest {
    #[allow(irrefutable_let_patterns)]
    pub fn into_download_firmware(
        self,
    ) -> Option<(fidl::Vmo, u64, DeviceDownloadFirmwareResponder)> {
        if let DeviceRequest::DownloadFirmware { firmware, offset, responder } = self {
            Some((firmware, offset, responder))
        } else {
            None
        }
    }

    /// Name of the method defined in FIDL
    pub fn method_name(&self) -> &'static str {
        match *self {
            DeviceRequest::DownloadFirmware { .. } => "download_firmware",
            DeviceRequest::_UnknownMethod { method_type: fidl::MethodType::OneWay, .. } => {
                "unknown one-way method"
            }
            DeviceRequest::_UnknownMethod { method_type: fidl::MethodType::TwoWay, .. } => {
                "unknown two-way method"
            }
        }
    }
}

#[derive(Debug, Clone)]
pub struct DeviceControlHandle {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
}

impl fidl::endpoints::ControlHandle for DeviceControlHandle {
    fn shutdown(&self) {
        self.inner.shutdown()
    }
    fn shutdown_with_epitaph(&self, status: zx_status::Status) {
        self.inner.shutdown_with_epitaph(status)
    }

    fn is_closed(&self) -> bool {
        self.inner.channel().is_closed()
    }
    fn on_closed(&self) -> fidl::OnSignalsRef<'_> {
        self.inner.channel().on_closed()
    }

    #[cfg(target_os = "fuchsia")]
    fn signal_peer(
        &self,
        clear_mask: zx::Signals,
        set_mask: zx::Signals,
    ) -> Result<(), zx_status::Status> {
        use fidl::Peered;
        self.inner.channel().signal_peer(clear_mask, set_mask)
    }
}

impl DeviceControlHandle {}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct DeviceDownloadFirmwareResponder {
    control_handle: std::mem::ManuallyDrop<DeviceControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`DeviceControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for DeviceDownloadFirmwareResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for DeviceDownloadFirmwareResponder {
    type ControlHandle = DeviceControlHandle;

    fn control_handle(&self) -> &DeviceControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl DeviceDownloadFirmwareResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(self, mut result: Result<(), i32>) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(self, mut result: Result<(), i32>) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(&self, mut result: Result<(), i32>) -> Result<(), fidl::Error> {
        self.control_handle
            .inner
            .send::<fidl::encoding::ResultType<fidl::encoding::EmptyStruct, i32>>(
                result,
                self.tx_id,
                0x7bba8137e24661e5,
                fidl::encoding::DynamicFlags::empty(),
            )
    }
}

#[derive(Debug, Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub struct ServiceMarker;

#[cfg(target_os = "fuchsia")]
impl fidl::endpoints::ServiceMarker for ServiceMarker {
    type Proxy = ServiceProxy;
    type Request = ServiceRequest;
    const SERVICE_NAME: &'static str = "fuchsia.hardware.google.nanohub.Service";
}

/// A request for one of the member protocols of Service.
///
#[cfg(target_os = "fuchsia")]
pub enum ServiceRequest {
    Nanohub(DeviceRequestStream),
}

#[cfg(target_os = "fuchsia")]
impl fidl::endpoints::ServiceRequest for ServiceRequest {
    type Service = ServiceMarker;

    fn dispatch(name: &str, _channel: fidl::AsyncChannel) -> Self {
        match name {
            "nanohub" => Self::Nanohub(
                <DeviceRequestStream as fidl::endpoints::RequestStream>::from_channel(_channel),
            ),
            _ => panic!("no such member protocol name for service Service"),
        }
    }

    fn member_names() -> &'static [&'static str] {
        &["nanohub"]
    }
}
#[cfg(target_os = "fuchsia")]
pub struct ServiceProxy(#[allow(dead_code)] Box<dyn fidl::endpoints::MemberOpener>);

#[cfg(target_os = "fuchsia")]
impl fidl::endpoints::ServiceProxy for ServiceProxy {
    type Service = ServiceMarker;

    fn from_member_opener(opener: Box<dyn fidl::endpoints::MemberOpener>) -> Self {
        Self(opener)
    }
}

#[cfg(target_os = "fuchsia")]
impl ServiceProxy {
    pub fn connect_to_nanohub(&self) -> Result<DeviceProxy, fidl::Error> {
        let (proxy, server_end) = fidl::endpoints::create_proxy::<DeviceMarker>();
        self.connect_channel_to_nanohub(server_end)?;
        Ok(proxy)
    }

    /// Like `connect_to_nanohub`, but returns a sync proxy.
    /// See [`Self::connect_to_nanohub`] for more details.
    pub fn connect_to_nanohub_sync(&self) -> Result<DeviceSynchronousProxy, fidl::Error> {
        let (proxy, server_end) = fidl::endpoints::create_sync_proxy::<DeviceMarker>();
        self.connect_channel_to_nanohub(server_end)?;
        Ok(proxy)
    }

    /// Like `connect_to_nanohub`, but accepts a server end.
    /// See [`Self::connect_to_nanohub`] for more details.
    pub fn connect_channel_to_nanohub(
        &self,
        server_end: fidl::endpoints::ServerEnd<DeviceMarker>,
    ) -> Result<(), fidl::Error> {
        self.0.open_member("nanohub", server_end.into_channel())
    }

    pub fn instance_name(&self) -> &str {
        self.0.instance_name()
    }
}

mod internal {
    use super::*;

    impl fidl::encoding::ResourceTypeMarker for DeviceDownloadFirmwareRequest {
        type Borrowed<'a> = &'a mut Self;
        fn take_or_borrow<'a>(
            value: &'a mut <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for DeviceDownloadFirmwareRequest {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl
        fidl::encoding::Encode<
            DeviceDownloadFirmwareRequest,
            fidl::encoding::DefaultFuchsiaResourceDialect,
        > for &mut DeviceDownloadFirmwareRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<DeviceDownloadFirmwareRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<
                DeviceDownloadFirmwareRequest,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >::encode(
                (
                    <fidl::encoding::HandleType<
                        fidl::Vmo,
                        { fidl::ObjectType::VMO.into_raw() },
                        49271,
                    > as fidl::encoding::ResourceTypeMarker>::take_or_borrow(
                        &mut self.firmware
                    ),
                    <u64 as fidl::encoding::ValueTypeMarker>::borrow(&self.offset),
                ),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
            T0: fidl::encoding::Encode<
                fidl::encoding::HandleType<fidl::Vmo, { fidl::ObjectType::VMO.into_raw() }, 49271>,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            T1: fidl::encoding::Encode<u64, fidl::encoding::DefaultFuchsiaResourceDialect>,
        >
        fidl::encoding::Encode<
            DeviceDownloadFirmwareRequest,
            fidl::encoding::DefaultFuchsiaResourceDialect,
        > for (T0, T1)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<DeviceDownloadFirmwareRequest>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            unsafe {
                let ptr = encoder.buf.as_mut_ptr().add(offset).offset(0);
                (ptr as *mut u64).write_unaligned(0);
            }
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 8, depth)?;
            Ok(())
        }
    }

    impl fidl::encoding::Decode<Self, fidl::encoding::DefaultFuchsiaResourceDialect>
        for DeviceDownloadFirmwareRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                firmware: fidl::new_empty!(fidl::encoding::HandleType<fidl::Vmo, { fidl::ObjectType::VMO.into_raw() }, 49271>, fidl::encoding::DefaultFuchsiaResourceDialect),
                offset: fidl::new_empty!(u64, fidl::encoding::DefaultFuchsiaResourceDialect),
            }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            let ptr = unsafe { decoder.buf.as_ptr().add(offset).offset(0) };
            let padval = unsafe { (ptr as *const u64).read_unaligned() };
            let mask = 0xffffffff00000000u64;
            let maskedval = padval & mask;
            if maskedval != 0 {
                return Err(fidl::Error::NonZeroPadding {
                    padding_start: offset + 0 + ((mask as u64).trailing_zeros() / 8) as usize,
                });
            }
            fidl::decode!(fidl::encoding::HandleType<fidl::Vmo, { fidl::ObjectType::VMO.into_raw() }, 49271>, fidl::encoding::DefaultFuchsiaResourceDialect, &mut self.firmware, decoder, offset + 0, _depth)?;
            fidl::decode!(
                u64,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                &mut self.offset,
                decoder,
                offset + 8,
                _depth
            )?;
            Ok(())
        }
    }
}