Struct hyper::server::Builder [−][src]
A builder for a Server
.
Implementations
impl<I, E> Builder<I, E>
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pub fn new(incoming: I, protocol: Http_<E>) -> Self
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Start a new builder, wrapping an incoming stream and low-level options.
For a more convenient constructor, see Server::bind
.
pub fn http1_keepalive(self, val: bool) -> Self
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Sets whether to use keep-alive for HTTP/1 connections.
Default is true
.
pub fn http1_half_close(self, val: bool) -> Self
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Set whether HTTP/1 connections should support half-closures.
Clients can chose to shutdown their write-side while waiting
for the server to respond. Setting this to true
will
prevent closing the connection immediately if read
detects an EOF in the middle of a request.
Default is false
.
pub fn http1_max_buf_size(self, val: usize) -> Self
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Set the maximum buffer size.
Default is ~ 400kb.
pub fn http1_writev(self, val: bool) -> Self
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Set whether HTTP/1 connections should try to use vectored writes, or always flatten into a single buffer.
Note
Setting this to false
may mean more copies of body data,
but may also improve performance when an IO transport doesn’t
support vectored writes well, such as most TLS implementations.
Setting this to true will force hyper to use queued strategy which may eliminate unnecessary cloning on some TLS backends
Default is auto
. In this mode hyper will try to guess which
mode to use
pub fn http1_only(self, val: bool) -> Self
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Sets whether HTTP/1 is required.
Default is false
.
pub fn http2_only(self, val: bool) -> Self
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Sets whether HTTP/2 is required.
Default is false
.
pub fn http2_initial_stream_window_size(
self,
sz: impl Into<Option<u32>>
) -> Self
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self,
sz: impl Into<Option<u32>>
) -> Self
Sets the SETTINGS_INITIAL_WINDOW_SIZE
option for HTTP2
stream-level flow control.
Passing None
will do nothing.
If not set, hyper will use a default.
pub fn http2_initial_connection_window_size(
self,
sz: impl Into<Option<u32>>
) -> Self
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self,
sz: impl Into<Option<u32>>
) -> Self
Sets the max connection-level flow control for HTTP2
Passing None
will do nothing.
If not set, hyper will use a default.
pub fn http2_adaptive_window(self, enabled: bool) -> Self
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Sets whether to use an adaptive flow control.
Enabling this will override the limits set in
http2_initial_stream_window_size
and
http2_initial_connection_window_size
.
pub fn http2_max_frame_size(self, sz: impl Into<Option<u32>>) -> Self
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Sets the maximum frame size to use for HTTP2.
Passing None
will do nothing.
If not set, hyper will use a default.
pub fn http2_max_concurrent_streams(self, max: impl Into<Option<u32>>) -> Self
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Sets the SETTINGS_MAX_CONCURRENT_STREAMS
option for HTTP2
connections.
Default is no limit (std::u32::MAX
). Passing None
will do nothing.
pub fn http2_keep_alive_interval(
self,
interval: impl Into<Option<Duration>>
) -> Self
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self,
interval: impl Into<Option<Duration>>
) -> Self
Sets an interval for HTTP2 Ping frames should be sent to keep a connection alive.
Pass None
to disable HTTP2 keep-alive.
Default is currently disabled.
Cargo Feature
Requires the runtime
cargo feature to be enabled.
pub fn http2_keep_alive_timeout(self, timeout: Duration) -> Self
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Sets a timeout for receiving an acknowledgement of the keep-alive ping.
If the ping is not acknowledged within the timeout, the connection will
be closed. Does nothing if http2_keep_alive_interval
is disabled.
Default is 20 seconds.
Cargo Feature
Requires the runtime
cargo feature to be enabled.
pub fn executor<E2>(self, executor: E2) -> Builder<I, E2>
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Sets the Executor
to deal with connection tasks.
Default is tokio::spawn
.
pub fn serve<S, B>(self, new_service: S) -> Server<I, S, E>ⓘNotable traits for Server<I, S, E>
impl<I, IO, IE, S, B, E> Future for Server<I, S, E> where
I: Accept<Conn = IO, Error = IE>,
IE: Into<Box<dyn StdError + Send + Sync>>,
IO: AsyncRead + AsyncWrite + Unpin + Send + 'static,
S: MakeServiceRef<IO, Body, ResBody = B>,
S::Error: Into<Box<dyn StdError + Send + Sync>>,
B: HttpBody + 'static,
B::Error: Into<Box<dyn StdError + Send + Sync>>,
E: H2Exec<<S::Service as HttpService<Body>>::Future, B>,
E: NewSvcExec<IO, S::Future, S::Service, E, NoopWatcher>, type Output = Result<()>;
where
I: Accept,
I::Error: Into<Box<dyn StdError + Send + Sync>>,
I::Conn: AsyncRead + AsyncWrite + Unpin + Send + 'static,
S: MakeServiceRef<I::Conn, Body, ResBody = B>,
S::Error: Into<Box<dyn StdError + Send + Sync>>,
B: HttpBody + 'static,
B::Error: Into<Box<dyn StdError + Send + Sync>>,
E: NewSvcExec<I::Conn, S::Future, S::Service, E, NoopWatcher>,
E: H2Exec<<S::Service as HttpService<Body>>::Future, B>,
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Notable traits for Server<I, S, E>
impl<I, IO, IE, S, B, E> Future for Server<I, S, E> where
I: Accept<Conn = IO, Error = IE>,
IE: Into<Box<dyn StdError + Send + Sync>>,
IO: AsyncRead + AsyncWrite + Unpin + Send + 'static,
S: MakeServiceRef<IO, Body, ResBody = B>,
S::Error: Into<Box<dyn StdError + Send + Sync>>,
B: HttpBody + 'static,
B::Error: Into<Box<dyn StdError + Send + Sync>>,
E: H2Exec<<S::Service as HttpService<Body>>::Future, B>,
E: NewSvcExec<IO, S::Future, S::Service, E, NoopWatcher>, type Output = Result<()>;
I: Accept,
I::Error: Into<Box<dyn StdError + Send + Sync>>,
I::Conn: AsyncRead + AsyncWrite + Unpin + Send + 'static,
S: MakeServiceRef<I::Conn, Body, ResBody = B>,
S::Error: Into<Box<dyn StdError + Send + Sync>>,
B: HttpBody + 'static,
B::Error: Into<Box<dyn StdError + Send + Sync>>,
E: NewSvcExec<I::Conn, S::Future, S::Service, E, NoopWatcher>,
E: H2Exec<<S::Service as HttpService<Body>>::Future, B>,
Consume this Builder
, creating a Server
.
Example
use hyper::{Body, Error, Response, Server}; use hyper::service::{make_service_fn, service_fn}; // Construct our SocketAddr to listen on... let addr = ([127, 0, 0, 1], 3000).into(); // And a MakeService to handle each connection... let make_svc = make_service_fn(|_| async { Ok::<_, Error>(service_fn(|_req| async { Ok::<_, Error>(Response::new(Body::from("Hello World"))) })) }); // Then bind and serve... let server = Server::bind(&addr) .serve(make_svc); // Run forever-ish... if let Err(err) = server.await { eprintln!("server error: {}", err); }
impl<E> Builder<AddrIncoming, E>
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pub fn tcp_keepalive(self, keepalive: Option<Duration>) -> Self
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Set whether TCP keepalive messages are enabled on accepted connections.
If None
is specified, keepalive is disabled, otherwise the duration
specified will be the time to remain idle before sending TCP keepalive
probes.
pub fn tcp_nodelay(self, enabled: bool) -> Self
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Set the value of TCP_NODELAY
option for accepted connections.
pub fn tcp_sleep_on_accept_errors(self, val: bool) -> Self
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Set whether to sleep on accept errors.
A possible scenario is that the process has hit the max open files allowed, and so trying to accept a new connection will fail with EMFILE. In some cases, it’s preferable to just wait for some time, if the application will likely close some files (or connections), and try to accept the connection again. If this option is true, the error will be logged at the error level, since it is still a big deal, and then the listener will sleep for 1 second.
In other cases, hitting the max open files should be treat similarly to being out-of-memory, and simply error (and shutdown). Setting this option to false will allow that.
For more details see AddrIncoming::set_sleep_on_errors
Trait Implementations
Auto Trait Implementations
impl<I, E> RefUnwindSafe for Builder<I, E> where
E: RefUnwindSafe,
I: RefUnwindSafe,
E: RefUnwindSafe,
I: RefUnwindSafe,
impl<I, E> Send for Builder<I, E> where
E: Send,
I: Send,
E: Send,
I: Send,
impl<I, E> Sync for Builder<I, E> where
E: Sync,
I: Sync,
E: Sync,
I: Sync,
impl<I, E> Unpin for Builder<I, E> where
E: Unpin,
I: Unpin,
E: Unpin,
I: Unpin,
impl<I, E> UnwindSafe for Builder<I, E> where
E: UnwindSafe,
I: UnwindSafe,
E: UnwindSafe,
I: UnwindSafe,
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T> Instrument for T
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pub fn instrument(self, span: Span) -> Instrumented<Self>
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pub fn in_current_span(self) -> Instrumented<Self>
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impl<T> Instrument for T
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pub fn instrument(self, span: Span) -> Instrumented<Self>
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pub fn in_current_span(self) -> Instrumented<Self>
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> Pointable for T
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pub const ALIGN: usize
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type Init = T
The type for initializers.
pub unsafe fn init(init: <T as Pointable>::Init) -> usize
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pub unsafe fn deref<'a>(ptr: usize) -> &'a T
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pub unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T
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pub unsafe fn drop(ptr: usize)
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<T> WithSubscriber for T
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pub fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where
S: Into<Dispatch>,
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S: Into<Dispatch>,