fidl_fuchsia_fakeclock_test/

fidl_fuchsia_fakeclock_test.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_fakeclock_test_common::*;
use futures::future::{self, MaybeDone, TryFutureExt};
use zx_status;

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

impl fidl::endpoints::ProtocolMarker for ExampleMarker {
    type Proxy = ExampleProxy;
    type RequestStream = ExampleRequestStream;
    #[cfg(target_os = "fuchsia")]
    type SynchronousProxy = ExampleSynchronousProxy;

    const DEBUG_NAME: &'static str = "fuchsia.fakeclock.test.Example";
}
impl fidl::endpoints::DiscoverableProtocolMarker for ExampleMarker {}

pub trait ExampleProxyInterface: Send + Sync {
    type GetMonotonicResponseFut: std::future::Future<Output = Result<i64, fidl::Error>> + Send;
    fn r#get_monotonic(&self) -> Self::GetMonotonicResponseFut;
    type WaitUntilResponseFut: std::future::Future<Output = Result<(), fidl::Error>> + Send;
    fn r#wait_until(&self, timeout: i64) -> Self::WaitUntilResponseFut;
    type WaitForResponseFut: std::future::Future<Output = Result<(), fidl::Error>> + Send;
    fn r#wait_for(&self, duration: i64) -> Self::WaitForResponseFut;
}
#[derive(Debug)]
#[cfg(target_os = "fuchsia")]
pub struct ExampleSynchronousProxy {
    client: fidl::client::sync::Client,
}

#[cfg(target_os = "fuchsia")]
impl fidl::endpoints::SynchronousProxy for ExampleSynchronousProxy {
    type Proxy = ExampleProxy;
    type Protocol = ExampleMarker;

    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 ExampleSynchronousProxy {
    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<ExampleEvent, fidl::Error> {
        ExampleEvent::decode(self.client.wait_for_event::<ExampleMarker>(deadline)?)
    }

    /// Gets the current monotonic time.
    pub fn r#get_monotonic(&self, ___deadline: zx::MonotonicInstant) -> Result<i64, fidl::Error> {
        let _response = self
            .client
            .send_query::<fidl::encoding::EmptyPayload, ExampleGetMonotonicResponse, ExampleMarker>(
                (),
                0xc8bbde6196b6568,
                fidl::encoding::DynamicFlags::empty(),
                ___deadline,
            )?;
        Ok(_response.time)
    }

    /// Wait until the given absolute time, then return.
    pub fn r#wait_until(
        &self,
        mut timeout: i64,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<(), fidl::Error> {
        let _response = self
            .client
            .send_query::<ExampleWaitUntilRequest, fidl::encoding::EmptyPayload, ExampleMarker>(
                (timeout,),
                0x60e188ba3d61ed0a,
                fidl::encoding::DynamicFlags::empty(),
                ___deadline,
            )?;
        Ok(_response)
    }

    /// Wait for `duration` time, then return.
    pub fn r#wait_for(
        &self,
        mut duration: i64,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<(), fidl::Error> {
        let _response = self
            .client
            .send_query::<ExampleWaitForRequest, fidl::encoding::EmptyPayload, ExampleMarker>(
                (duration,),
                0x5a6de7cbba3b5b1e,
                fidl::encoding::DynamicFlags::empty(),
                ___deadline,
            )?;
        Ok(_response)
    }
}

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

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

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

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

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

impl fidl::endpoints::Proxy for ExampleProxy {
    type Protocol = ExampleMarker;

    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 ExampleProxy {
    /// Create a new Proxy for fuchsia.fakeclock.test/Example.
    pub fn new(channel: ::fidl::AsyncChannel) -> Self {
        let protocol_name = <ExampleMarker 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) -> ExampleEventStream {
        ExampleEventStream { event_receiver: self.client.take_event_receiver() }
    }

    /// Gets the current monotonic time.
    pub fn r#get_monotonic(
        &self,
    ) -> fidl::client::QueryResponseFut<i64, fidl::encoding::DefaultFuchsiaResourceDialect> {
        ExampleProxyInterface::r#get_monotonic(self)
    }

    /// Wait until the given absolute time, then return.
    pub fn r#wait_until(
        &self,
        mut timeout: i64,
    ) -> fidl::client::QueryResponseFut<(), fidl::encoding::DefaultFuchsiaResourceDialect> {
        ExampleProxyInterface::r#wait_until(self, timeout)
    }

    /// Wait for `duration` time, then return.
    pub fn r#wait_for(
        &self,
        mut duration: i64,
    ) -> fidl::client::QueryResponseFut<(), fidl::encoding::DefaultFuchsiaResourceDialect> {
        ExampleProxyInterface::r#wait_for(self, duration)
    }
}

impl ExampleProxyInterface for ExampleProxy {
    type GetMonotonicResponseFut =
        fidl::client::QueryResponseFut<i64, fidl::encoding::DefaultFuchsiaResourceDialect>;
    fn r#get_monotonic(&self) -> Self::GetMonotonicResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<i64, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                ExampleGetMonotonicResponse,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0xc8bbde6196b6568,
            >(_buf?)?;
            Ok(_response.time)
        }
        self.client.send_query_and_decode::<fidl::encoding::EmptyPayload, i64>(
            (),
            0xc8bbde6196b6568,
            fidl::encoding::DynamicFlags::empty(),
            _decode,
        )
    }

    type WaitUntilResponseFut =
        fidl::client::QueryResponseFut<(), fidl::encoding::DefaultFuchsiaResourceDialect>;
    fn r#wait_until(&self, mut timeout: i64) -> Self::WaitUntilResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<(), fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::EmptyPayload,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x60e188ba3d61ed0a,
            >(_buf?)?;
            Ok(_response)
        }
        self.client.send_query_and_decode::<ExampleWaitUntilRequest, ()>(
            (timeout,),
            0x60e188ba3d61ed0a,
            fidl::encoding::DynamicFlags::empty(),
            _decode,
        )
    }

    type WaitForResponseFut =
        fidl::client::QueryResponseFut<(), fidl::encoding::DefaultFuchsiaResourceDialect>;
    fn r#wait_for(&self, mut duration: i64) -> Self::WaitForResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<(), fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::EmptyPayload,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x5a6de7cbba3b5b1e,
            >(_buf?)?;
            Ok(_response)
        }
        self.client.send_query_and_decode::<ExampleWaitForRequest, ()>(
            (duration,),
            0x5a6de7cbba3b5b1e,
            fidl::encoding::DynamicFlags::empty(),
            _decode,
        )
    }
}

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

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

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

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

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

impl ExampleEvent {
    /// Decodes a message buffer as a [`ExampleEvent`].
    fn decode(
        mut buf: <fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc,
    ) -> Result<ExampleEvent, 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: <ExampleMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
            }),
        }
    }
}

/// A Stream of incoming requests for fuchsia.fakeclock.test/Example.
pub struct ExampleRequestStream {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
    is_terminated: bool,
}

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

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

impl fidl::endpoints::RequestStream for ExampleRequestStream {
    type Protocol = ExampleMarker;
    type ControlHandle = ExampleControlHandle;

    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 {
        ExampleControlHandle { 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 ExampleRequestStream {
    type Item = Result<ExampleRequest, 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 ExampleRequestStream 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 {
                    0xc8bbde6196b6568 => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            fidl::encoding::EmptyPayload,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<fidl::encoding::EmptyPayload>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = ExampleControlHandle { inner: this.inner.clone() };
                        Ok(ExampleRequest::GetMonotonic {
                            responder: ExampleGetMonotonicResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    0x60e188ba3d61ed0a => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            ExampleWaitUntilRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<ExampleWaitUntilRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = ExampleControlHandle { inner: this.inner.clone() };
                        Ok(ExampleRequest::WaitUntil {
                            timeout: req.timeout,

                            responder: ExampleWaitUntilResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    0x5a6de7cbba3b5b1e => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            ExampleWaitForRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<ExampleWaitForRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = ExampleControlHandle { inner: this.inner.clone() };
                        Ok(ExampleRequest::WaitFor {
                            duration: req.duration,

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

/// An example protocol for demonstrating fake time.
#[derive(Debug)]
pub enum ExampleRequest {
    /// Gets the current monotonic time.
    GetMonotonic { responder: ExampleGetMonotonicResponder },
    /// Wait until the given absolute time, then return.
    WaitUntil { timeout: i64, responder: ExampleWaitUntilResponder },
    /// Wait for `duration` time, then return.
    WaitFor { duration: i64, responder: ExampleWaitForResponder },
}

impl ExampleRequest {
    #[allow(irrefutable_let_patterns)]
    pub fn into_get_monotonic(self) -> Option<(ExampleGetMonotonicResponder)> {
        if let ExampleRequest::GetMonotonic { responder } = self { Some((responder)) } else { None }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_wait_until(self) -> Option<(i64, ExampleWaitUntilResponder)> {
        if let ExampleRequest::WaitUntil { timeout, responder } = self {
            Some((timeout, responder))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_wait_for(self) -> Option<(i64, ExampleWaitForResponder)> {
        if let ExampleRequest::WaitFor { duration, responder } = self {
            Some((duration, responder))
        } else {
            None
        }
    }

    /// Name of the method defined in FIDL
    pub fn method_name(&self) -> &'static str {
        match *self {
            ExampleRequest::GetMonotonic { .. } => "get_monotonic",
            ExampleRequest::WaitUntil { .. } => "wait_until",
            ExampleRequest::WaitFor { .. } => "wait_for",
        }
    }
}

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

impl ExampleControlHandle {
    pub fn shutdown_with_epitaph(&self, status: impl Into<fidl::Epitaph>) {
        self.inner.shutdown_with_epitaph(status.into())
    }
}

impl fidl::endpoints::ControlHandle for ExampleControlHandle {
    fn shutdown(&self) {
        self.inner.shutdown()
    }

    fn shutdown_with_epitaph(&self, status: fidl::Epitaph) {
        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 ExampleControlHandle {}

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

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

    fn control_handle(&self) -> &ExampleControlHandle {
        &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 ExampleGetMonotonicResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(self, mut time: i64) -> Result<(), fidl::Error> {
        let _result = self.send_raw(time);
        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 time: i64) -> Result<(), fidl::Error> {
        let _result = self.send_raw(time);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(&self, mut time: i64) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<ExampleGetMonotonicResponse>(
            (time,),
            self.tx_id,
            0xc8bbde6196b6568,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

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

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

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

    fn send_raw(&self) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<fidl::encoding::EmptyPayload>(
            (),
            self.tx_id,
            0x60e188ba3d61ed0a,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

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

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

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

    fn send_raw(&self) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<fidl::encoding::EmptyPayload>(
            (),
            self.tx_id,
            0x5a6de7cbba3b5b1e,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

mod internal {
    use super::*;
}