fidl_fuchsia_pkg_http/

fidl_fuchsia_pkg_http.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_pkg_http__common::*;
use futures::future::{self, MaybeDone, TryFutureExt};
use zx_status;

#[derive(Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct ClientDownloadBlobRequest {
    pub url: String,
    pub destination: fidl::endpoints::ClientEnd<fidl_fuchsia_fxfs::BlobWriterMarker>,
    pub header_timeout: i64,
    pub body_timeout: i64,
    pub resumption_attempt_limit: u32,
}

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

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

impl fidl::endpoints::ProtocolMarker for ClientMarker {
    type Proxy = ClientProxy;
    type RequestStream = ClientRequestStream;
    #[cfg(target_os = "fuchsia")]
    type SynchronousProxy = ClientSynchronousProxy;

    const DEBUG_NAME: &'static str = "fuchsia.pkg.http.Client";
}
impl fidl::endpoints::DiscoverableProtocolMarker for ClientMarker {}
pub type ClientDownloadBlobResult = Result<u64, ClientDownloadBlobError>;

pub trait ClientProxyInterface: Send + Sync {
    type DownloadBlobResponseFut: std::future::Future<Output = Result<ClientDownloadBlobResult, fidl::Error>>
        + Send;
    fn r#download_blob(
        &self,
        url: &str,
        destination: fidl::endpoints::ClientEnd<fidl_fuchsia_fxfs::BlobWriterMarker>,
        header_timeout: i64,
        body_timeout: i64,
        resumption_attempt_limit: u32,
    ) -> Self::DownloadBlobResponseFut;
}
#[derive(Debug)]
#[cfg(target_os = "fuchsia")]
pub struct ClientSynchronousProxy {
    client: fidl::client::sync::Client,
}

#[cfg(target_os = "fuchsia")]
impl fidl::endpoints::SynchronousProxy for ClientSynchronousProxy {
    type Proxy = ClientProxy;
    type Protocol = ClientMarker;

    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 ClientSynchronousProxy {
    pub fn new(channel: fidl::Channel) -> Self {
        Self { client: fidl::client::sync::Client::new(channel) }
    }

    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<ClientEvent, fidl::Error> {
        ClientEvent::decode(self.client.wait_for_event::<ClientMarker>(deadline)?)
    }

    /// Makes an HTTP GET request for `url` and writes the response body to `destination`.
    ///
    /// As long as forward progress is being made (response stream contains some body bytes before
    /// terminating early), this method will repeatedly (up to `resumption_attempt_limit`) make
    /// follow-up HTTP GET requests with the RANGE header set to the outstanding content.
    ///
    /// + request `url` the URL of the file to be downloaded.
    /// + request `destination` where the file will be written.
    /// + request `header_timeout` the timeout to use when waiting for the entire HTTP response
    ///     header to be downloaded.
    /// + request `body_timeout` the timeout to use when waiting for every chunk of bytes while
    ///     downloading the HTTP response body.
    /// + request `resumption_attempt_limit` the number of resumption attempts to make.
    /// - response `size` the size in bytes of the downloaded file.
    pub fn r#download_blob(
        &self,
        mut url: &str,
        mut destination: fidl::endpoints::ClientEnd<fidl_fuchsia_fxfs::BlobWriterMarker>,
        mut header_timeout: i64,
        mut body_timeout: i64,
        mut resumption_attempt_limit: u32,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<ClientDownloadBlobResult, fidl::Error> {
        let _response =
            self.client.send_query::<ClientDownloadBlobRequest, fidl::encoding::ResultType<
                ClientDownloadBlobResponse,
                ClientDownloadBlobError,
            >, ClientMarker>(
                (url, destination, header_timeout, body_timeout, resumption_attempt_limit),
                0x829250010b00abb,
                fidl::encoding::DynamicFlags::empty(),
                ___deadline,
            )?;
        Ok(_response.map(|x| x.size))
    }
}

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

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

#[cfg(target_os = "fuchsia")]
impl fidl::endpoints::FromClient for ClientSynchronousProxy {
    type Protocol = ClientMarker;

    fn from_client(value: fidl::endpoints::ClientEnd<ClientMarker>) -> Self {
        Self::new(value.into_channel())
    }
}

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

impl fidl::endpoints::Proxy for ClientProxy {
    type Protocol = ClientMarker;

    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 ClientProxy {
    /// Create a new Proxy for fuchsia.pkg.http/Client.
    pub fn new(channel: ::fidl::AsyncChannel) -> Self {
        let protocol_name = <ClientMarker 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) -> ClientEventStream {
        ClientEventStream { event_receiver: self.client.take_event_receiver() }
    }

    /// Makes an HTTP GET request for `url` and writes the response body to `destination`.
    ///
    /// As long as forward progress is being made (response stream contains some body bytes before
    /// terminating early), this method will repeatedly (up to `resumption_attempt_limit`) make
    /// follow-up HTTP GET requests with the RANGE header set to the outstanding content.
    ///
    /// + request `url` the URL of the file to be downloaded.
    /// + request `destination` where the file will be written.
    /// + request `header_timeout` the timeout to use when waiting for the entire HTTP response
    ///     header to be downloaded.
    /// + request `body_timeout` the timeout to use when waiting for every chunk of bytes while
    ///     downloading the HTTP response body.
    /// + request `resumption_attempt_limit` the number of resumption attempts to make.
    /// - response `size` the size in bytes of the downloaded file.
    pub fn r#download_blob(
        &self,
        mut url: &str,
        mut destination: fidl::endpoints::ClientEnd<fidl_fuchsia_fxfs::BlobWriterMarker>,
        mut header_timeout: i64,
        mut body_timeout: i64,
        mut resumption_attempt_limit: u32,
    ) -> fidl::client::QueryResponseFut<
        ClientDownloadBlobResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        ClientProxyInterface::r#download_blob(
            self,
            url,
            destination,
            header_timeout,
            body_timeout,
            resumption_attempt_limit,
        )
    }
}

impl ClientProxyInterface for ClientProxy {
    type DownloadBlobResponseFut = fidl::client::QueryResponseFut<
        ClientDownloadBlobResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#download_blob(
        &self,
        mut url: &str,
        mut destination: fidl::endpoints::ClientEnd<fidl_fuchsia_fxfs::BlobWriterMarker>,
        mut header_timeout: i64,
        mut body_timeout: i64,
        mut resumption_attempt_limit: u32,
    ) -> Self::DownloadBlobResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<ClientDownloadBlobResult, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::ResultType<ClientDownloadBlobResponse, ClientDownloadBlobError>,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x829250010b00abb,
            >(_buf?)?;
            Ok(_response.map(|x| x.size))
        }
        self.client.send_query_and_decode::<ClientDownloadBlobRequest, ClientDownloadBlobResult>(
            (url, destination, header_timeout, body_timeout, resumption_attempt_limit),
            0x829250010b00abb,
            fidl::encoding::DynamicFlags::empty(),
            _decode,
        )
    }
}

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

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

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

impl futures::Stream for ClientEventStream {
    type Item = Result<ClientEvent, 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(ClientEvent::decode(buf))),
            None => std::task::Poll::Ready(None),
        }
    }
}

#[derive(Debug)]
pub enum ClientEvent {}

impl ClientEvent {
    /// Decodes a message buffer as a [`ClientEvent`].
    fn decode(
        mut buf: <fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc,
    ) -> Result<ClientEvent, 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 {
            _ => Err(fidl::Error::UnknownOrdinal {
                ordinal: tx_header.ordinal,
                protocol_name: <ClientMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
            }),
        }
    }
}

/// A Stream of incoming requests for fuchsia.pkg.http/Client.
pub struct ClientRequestStream {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
    is_terminated: bool,
}

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

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

impl fidl::endpoints::RequestStream for ClientRequestStream {
    type Protocol = ClientMarker;
    type ControlHandle = ClientControlHandle;

    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 {
        ClientControlHandle { 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 ClientRequestStream {
    type Item = Result<ClientRequest, 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 ClientRequestStream 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 {
                    0x829250010b00abb => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            ClientDownloadBlobRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<ClientDownloadBlobRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = ClientControlHandle { inner: this.inner.clone() };
                        Ok(ClientRequest::DownloadBlob {
                            url: req.url,
                            destination: req.destination,
                            header_timeout: req.header_timeout,
                            body_timeout: req.body_timeout,
                            resumption_attempt_limit: req.resumption_attempt_limit,

                            responder: ClientDownloadBlobResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    _ => Err(fidl::Error::UnknownOrdinal {
                        ordinal: header.ordinal,
                        protocol_name:
                            <ClientMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
                    }),
                }))
            },
        )
    }
}

/// An HTTP client for package resolution and OTAs.
#[derive(Debug)]
pub enum ClientRequest {
    /// Makes an HTTP GET request for `url` and writes the response body to `destination`.
    ///
    /// As long as forward progress is being made (response stream contains some body bytes before
    /// terminating early), this method will repeatedly (up to `resumption_attempt_limit`) make
    /// follow-up HTTP GET requests with the RANGE header set to the outstanding content.
    ///
    /// + request `url` the URL of the file to be downloaded.
    /// + request `destination` where the file will be written.
    /// + request `header_timeout` the timeout to use when waiting for the entire HTTP response
    ///     header to be downloaded.
    /// + request `body_timeout` the timeout to use when waiting for every chunk of bytes while
    ///     downloading the HTTP response body.
    /// + request `resumption_attempt_limit` the number of resumption attempts to make.
    /// - response `size` the size in bytes of the downloaded file.
    DownloadBlob {
        url: String,
        destination: fidl::endpoints::ClientEnd<fidl_fuchsia_fxfs::BlobWriterMarker>,
        header_timeout: i64,
        body_timeout: i64,
        resumption_attempt_limit: u32,
        responder: ClientDownloadBlobResponder,
    },
}

impl ClientRequest {
    #[allow(irrefutable_let_patterns)]
    pub fn into_download_blob(
        self,
    ) -> Option<(
        String,
        fidl::endpoints::ClientEnd<fidl_fuchsia_fxfs::BlobWriterMarker>,
        i64,
        i64,
        u32,
        ClientDownloadBlobResponder,
    )> {
        if let ClientRequest::DownloadBlob {
            url,
            destination,
            header_timeout,
            body_timeout,
            resumption_attempt_limit,
            responder,
        } = self
        {
            Some((
                url,
                destination,
                header_timeout,
                body_timeout,
                resumption_attempt_limit,
                responder,
            ))
        } else {
            None
        }
    }

    /// Name of the method defined in FIDL
    pub fn method_name(&self) -> &'static str {
        match *self {
            ClientRequest::DownloadBlob { .. } => "download_blob",
        }
    }
}

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

impl fidl::endpoints::ControlHandle for ClientControlHandle {
    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 ClientControlHandle {}

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

/// Set the the channel to be shutdown (see [`ClientControlHandle::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 ClientDownloadBlobResponder {
    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 ClientDownloadBlobResponder {
    type ControlHandle = ClientControlHandle;

    fn control_handle(&self) -> &ClientControlHandle {
        &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 ClientDownloadBlobResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(self, mut result: Result<u64, ClientDownloadBlobError>) -> 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<u64, ClientDownloadBlobError>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(
        &self,
        mut result: Result<u64, ClientDownloadBlobError>,
    ) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<fidl::encoding::ResultType<
            ClientDownloadBlobResponse,
            ClientDownloadBlobError,
        >>(
            result.map(|size| (size,)),
            self.tx_id,
            0x829250010b00abb,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

mod internal {
    use super::*;

    impl fidl::encoding::ResourceTypeMarker for ClientDownloadBlobRequest {
        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 ClientDownloadBlobRequest {
        type Owned = Self;

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

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            48
        }
    }

    unsafe impl
        fidl::encoding::Encode<
            ClientDownloadBlobRequest,
            fidl::encoding::DefaultFuchsiaResourceDialect,
        > for &mut ClientDownloadBlobRequest
    {
        #[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::<ClientDownloadBlobRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<ClientDownloadBlobRequest, fidl::encoding::DefaultFuchsiaResourceDialect>::encode(
                (
                    <fidl::encoding::BoundedString<4096> as fidl::encoding::ValueTypeMarker>::borrow(&self.url),
                    <fidl::encoding::Endpoint<fidl::endpoints::ClientEnd<fidl_fuchsia_fxfs::BlobWriterMarker>> as fidl::encoding::ResourceTypeMarker>::take_or_borrow(&mut self.destination),
                    <i64 as fidl::encoding::ValueTypeMarker>::borrow(&self.header_timeout),
                    <i64 as fidl::encoding::ValueTypeMarker>::borrow(&self.body_timeout),
                    <u32 as fidl::encoding::ValueTypeMarker>::borrow(&self.resumption_attempt_limit),
                ),
                encoder, offset, _depth
            )
        }
    }
    unsafe impl<
        T0: fidl::encoding::Encode<
                fidl::encoding::BoundedString<4096>,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
        T1: fidl::encoding::Encode<
                fidl::encoding::Endpoint<
                    fidl::endpoints::ClientEnd<fidl_fuchsia_fxfs::BlobWriterMarker>,
                >,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
        T2: fidl::encoding::Encode<i64, fidl::encoding::DefaultFuchsiaResourceDialect>,
        T3: fidl::encoding::Encode<i64, fidl::encoding::DefaultFuchsiaResourceDialect>,
        T4: fidl::encoding::Encode<u32, fidl::encoding::DefaultFuchsiaResourceDialect>,
    >
        fidl::encoding::Encode<
            ClientDownloadBlobRequest,
            fidl::encoding::DefaultFuchsiaResourceDialect,
        > for (T0, T1, T2, T3, T4)
    {
        #[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::<ClientDownloadBlobRequest>(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(16);
                (ptr as *mut u64).write_unaligned(0);
            }
            unsafe {
                let ptr = encoder.buf.as_mut_ptr().add(offset).offset(40);
                (ptr as *mut u64).write_unaligned(0);
            }
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 16, depth)?;
            self.2.encode(encoder, offset + 24, depth)?;
            self.3.encode(encoder, offset + 32, depth)?;
            self.4.encode(encoder, offset + 40, depth)?;
            Ok(())
        }
    }

    impl fidl::encoding::Decode<Self, fidl::encoding::DefaultFuchsiaResourceDialect>
        for ClientDownloadBlobRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                url: fidl::new_empty!(
                    fidl::encoding::BoundedString<4096>,
                    fidl::encoding::DefaultFuchsiaResourceDialect
                ),
                destination: fidl::new_empty!(
                    fidl::encoding::Endpoint<
                        fidl::endpoints::ClientEnd<fidl_fuchsia_fxfs::BlobWriterMarker>,
                    >,
                    fidl::encoding::DefaultFuchsiaResourceDialect
                ),
                header_timeout: fidl::new_empty!(
                    i64,
                    fidl::encoding::DefaultFuchsiaResourceDialect
                ),
                body_timeout: fidl::new_empty!(i64, fidl::encoding::DefaultFuchsiaResourceDialect),
                resumption_attempt_limit: fidl::new_empty!(
                    u32,
                    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(16) };
            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 + 16 + ((mask as u64).trailing_zeros() / 8) as usize,
                });
            }
            let ptr = unsafe { decoder.buf.as_ptr().add(offset).offset(40) };
            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 + 40 + ((mask as u64).trailing_zeros() / 8) as usize,
                });
            }
            fidl::decode!(
                fidl::encoding::BoundedString<4096>,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                &mut self.url,
                decoder,
                offset + 0,
                _depth
            )?;
            fidl::decode!(
                fidl::encoding::Endpoint<
                    fidl::endpoints::ClientEnd<fidl_fuchsia_fxfs::BlobWriterMarker>,
                >,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                &mut self.destination,
                decoder,
                offset + 16,
                _depth
            )?;
            fidl::decode!(
                i64,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                &mut self.header_timeout,
                decoder,
                offset + 24,
                _depth
            )?;
            fidl::decode!(
                i64,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                &mut self.body_timeout,
                decoder,
                offset + 32,
                _depth
            )?;
            fidl::decode!(
                u32,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                &mut self.resumption_attempt_limit,
                decoder,
                offset + 40,
                _depth
            )?;
            Ok(())
        }
    }
}