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//! Declare a macro for making opaque runtime wrappers.
/// Implement delegating implementations of the runtime traits for a type $t
/// whose member $r implements Runtime. Used to hide the details of the
/// implementation of $t.
#[allow(unused)] // Can be unused if no runtimes are declared.
macro_rules! implement_opaque_runtime {
{
$t:ty { $member:ident : $mty:ty }
} => {
impl futures::task::Spawn for $t {
// `track_caller` required for tokio-console
#[inline]
#[track_caller]
fn spawn_obj(&self, future: futures::future::FutureObj<'static, ()>) -> Result<(), futures::task::SpawnError> {
self.$member.spawn_obj(future)
}
}
impl $crate::traits::Blocking for $t {
type ThreadHandle<T: Send + 'static> = <$mty as $crate::traits::Blocking>::ThreadHandle<T>;
// `track_caller` required for tokio-console
#[inline]
#[track_caller]
fn spawn_blocking<F, T>(&self, f: F) -> <$mty as $crate::traits::Blocking>::ThreadHandle<T>
where
F: FnOnce() -> T + Send + 'static,
T: Send + 'static,
{
self.$member.spawn_blocking(f)
}
// `track_caller` required for tokio-console
#[inline]
#[track_caller]
fn reenter_block_on<F>(&self, future: F) -> F::Output
where
F: futures::Future,
F::Output: Send + 'static
{
self.$member.reenter_block_on(future)
}
}
impl $crate::traits::ToplevelBlockOn for $t {
// `track_caller` required for tokio-console
#[inline]
#[track_caller]
fn block_on<F: futures::Future>(&self, future: F) -> F::Output {
self.$member.block_on(future)
}
}
impl $crate::traits::SleepProvider for $t {
type SleepFuture = <$mty as $crate::traits::SleepProvider>::SleepFuture;
#[inline]
fn sleep(&self, duration: std::time::Duration) -> Self::SleepFuture {
self.$member.sleep(duration)
}
}
impl $crate::CoarseTimeProvider for $t {
#[inline]
fn now_coarse(&self) -> $crate::CoarseInstant {
self.$member.now_coarse()
}
}
#[async_trait::async_trait]
impl $crate::traits::NetStreamProvider<std::net::SocketAddr> for $t {
type Stream = <$mty as $crate::traits::NetStreamProvider>::Stream;
type Listener = <$mty as $crate::traits::NetStreamProvider>::Listener;
type ConnectOptions = <$mty as $crate::traits::NetStreamProvider>::ConnectOptions;
type ListenOptions = <$mty as $crate::traits::NetStreamProvider>::ListenOptions;
#[inline]
#[tracing::instrument(skip_all, level = "trace")]
async fn connect(
&self,
addr: &std::net::SocketAddr,
options: &Self::ConnectOptions,
) -> std::io::Result<Self::Stream> {
self.$member.connect(addr, options).await
}
#[inline]
async fn listen(
&self,
addr: &std::net::SocketAddr,
options: &Self::ListenOptions,
) -> std::io::Result<Self::Listener> {
self.$member.listen(addr, options).await
}
}
#[async_trait::async_trait]
impl $crate::traits::NetStreamProvider<tor_general_addr::unix::SocketAddr> for $t {
type Stream = <$mty as $crate::traits::NetStreamProvider<tor_general_addr::unix::SocketAddr>>::Stream;
type Listener = <$mty as $crate::traits::NetStreamProvider<tor_general_addr::unix::SocketAddr>>::Listener;
type ConnectOptions = <$mty as $crate::traits::NetStreamProvider<tor_general_addr::unix::SocketAddr>>::ConnectOptions;
type ListenOptions = <$mty as $crate::traits::NetStreamProvider<tor_general_addr::unix::SocketAddr>>::ListenOptions;
#[inline]
#[tracing::instrument(skip_all, level = "trace")]
async fn connect(
&self,
addr: &tor_general_addr::unix::SocketAddr,
options: &Self::ConnectOptions,
) -> std::io::Result<Self::Stream> {
self.$member.connect(addr, options).await
}
#[inline]
async fn listen(
&self,
addr: &tor_general_addr::unix::SocketAddr,
options: &Self::ListenOptions,
) -> std::io::Result<Self::Listener> {
self.$member.listen(addr, options).await
}
}
impl<S> $crate::traits::TlsProvider<S> for $t
where S: futures::AsyncRead + futures::AsyncWrite + $crate::traits::StreamOps + Unpin + Send + 'static,
{
type Connector = <$mty as $crate::traits::TlsProvider<S>>::Connector;
type TlsStream = <$mty as $crate::traits::TlsProvider<S>>::TlsStream;
type Acceptor = <$mty as $crate::traits::TlsProvider<S>>::Acceptor;
type TlsServerStream = <$mty as $crate::traits::TlsProvider<S>>::TlsServerStream;
#[inline]
fn tls_connector(&self) -> Self::Connector {
self.$member.tls_connector()
}
#[inline]
fn tls_acceptor(&self, settings: $crate::traits::TlsAcceptorSettings) -> std::io::Result<Self::Acceptor> {
<$mty as $crate::traits::TlsProvider<S>>::tls_acceptor(&self.$member, settings)
}
#[inline]
fn supports_keying_material_export(&self) -> bool {
<$mty as $crate::traits::TlsProvider<S>>::supports_keying_material_export(&self.$member)
}
}
#[async_trait::async_trait]
impl $crate::traits::UdpProvider for $t {
type UdpSocket = <$mty as $crate::traits::UdpProvider>::UdpSocket;
#[inline]
async fn bind(&self, addr: &std::net::SocketAddr) -> std::io::Result<Self::UdpSocket> {
self.$member.bind(addr).await
}
}
impl std::fmt::Debug for $t {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
f.debug_struct(stringify!($t)).finish_non_exhaustive()
}
}
// This boilerplate will fail unless $t implements Runtime.
#[allow(unused)]
const _ : () = {
fn assert_runtime<R: $crate::Runtime>() {}
fn check() {
assert_runtime::<$t>();
}
};
}
}
#[allow(unused)] // Can be unused if no runtimes are declared.
pub(crate) use implement_opaque_runtime;
|
