Struct actix_web::server::HttpServer
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pub struct HttpServer<H> where
H: IntoHttpHandler + 'static, { /* fields omitted */ }
An HTTP Server
Methods
impl<H> HttpServer<H> where
H: IntoHttpHandler + 'static,
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H: IntoHttpHandler + 'static,
pub fn new<F, U>(factory: F) -> Self where
F: Fn() -> U + Sync + Send + 'static,
U: IntoIterator<Item = H> + 'static,
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F: Fn() -> U + Sync + Send + 'static,
U: IntoIterator<Item = H> + 'static,
Create new http server with application factory
pub fn threads(self, num: usize) -> Self
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Set number of workers to start.
By default http server uses number of available logical cpu as threads count.
pub fn backlog(self, num: i32) -> Self
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Set the maximum number of pending connections.
This refers to the number of clients that can be waiting to be served. Exceeding this number results in the client getting an error when attempting to connect. It should only affect servers under significant load.
Generally set in the 64-2048 range. Default value is 2048.
This method should be called before bind()
method call.
pub fn keep_alive(self, val: Option<u64>) -> Self
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Set server keep-alive setting.
By default keep alive is enabled.
-
Some(75)
- enable -
Some(0)
- disable -
None
- useSO_KEEPALIVE
socket option
pub fn server_hostname(self, val: String) -> Self
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Set server host name.
Host name is used by application router aa a hostname for url generation. Check ConnectionInfo documentation for more information.
pub fn system_exit(self) -> Self
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Send SystemExit
message to actix system
SystemExit
message stops currently running system arbiter and all
nested arbiters.
pub fn signals(self, addr: Addr<Syn, ProcessSignals>) -> Self
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Set alternative address for ProcessSignals
actor.
pub fn disable_signals(self) -> Self
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Disable signal handling
pub fn shutdown_timeout(self, sec: u16) -> Self
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Timeout for graceful workers shutdown.
After receiving a stop signal, workers have this much time to finish serving requests. Workers still alive after the timeout are force dropped.
By default shutdown timeout sets to 30 seconds.
pub fn addrs(&self) -> Vec<SocketAddr>
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Get addresses of bound sockets.
pub fn listen(self, lst: TcpListener) -> Self
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Use listener for accepting incoming connection requests
HttpServer does not change any configuration for TcpListener, it needs to be configured before passing it to listen() method.
pub fn bind<S: ToSocketAddrs>(self, addr: S) -> Result<Self>
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The socket address to bind
To mind multiple addresses this method can be call multiple times.
impl<H: IntoHttpHandler> HttpServer<H>
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pub fn start(self) -> Addr<Syn, Self>
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Start listening for incoming connections.
This method starts number of http handler workers in separate threads.
For each address this method starts separate thread which does accept()
in a loop.
This methods panics if no socket addresses get bound.
This method requires to run within properly configured Actix
system.
extern crate actix; extern crate actix_web; use actix_web::*; fn main() { let sys = actix::System::new("example"); // <- create Actix system HttpServer::new( || Application::new() .resource("/", |r| r.h(httpcodes::HttpOk))) .bind("127.0.0.1:0").expect("Can not bind to 127.0.0.1:0") .start(); let _ = sys.run(); // <- Run actix system, this method actually starts all async processes }
pub fn run(self)
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Spawn new thread and start listening for incoming connections.
This method spawns new thread and starts new actix system. Other than that it is
similar to start()
method. This method blocks.
This methods panics if no socket addresses get bound.
use actix_web::*; fn main() { HttpServer::new( || Application::new() .resource("/", |r| r.h(httpcodes::HttpOk))) .bind("127.0.0.1:0").expect("Can not bind to 127.0.0.1:0") .run(); }
impl<H: IntoHttpHandler> HttpServer<H>
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pub fn start_incoming<T, A, S>(self, stream: S, secure: bool) -> Addr<Syn, Self> where
S: Stream<Item = (T, A), Error = Error> + 'static,
T: AsyncRead + AsyncWrite + 'static,
A: 'static,
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S: Stream<Item = (T, A), Error = Error> + 'static,
T: AsyncRead + AsyncWrite + 'static,
A: 'static,
Start listening for incoming connections from a stream.
This method uses only one thread for handling incoming connections.
Trait Implementations
impl<H> Sync for HttpServer<H> where
H: IntoHttpHandler,
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H: IntoHttpHandler,
impl<H> Send for HttpServer<H> where
H: IntoHttpHandler,
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H: IntoHttpHandler,
impl<H> Actor for HttpServer<H> where
H: IntoHttpHandler,
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H: IntoHttpHandler,
type Context = Context<Self>
Actor execution context type
fn started(&mut self, ctx: &mut Self::Context)
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Method is called when actor get polled first time.
fn stopping(&mut self, ctx: &mut Self::Context) -> Running
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Method is called after an actor is in Actor::Stopping
state. There could be several reasons for stopping. Context::stop
get called by the actor itself. All addresses to current actor get dropped and no more evented objects left in the context. Read more
fn stopped(&mut self, ctx: &mut Self::Context)
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Method is called after an actor is stopped, it can be used to perform any needed cleanup work or spawning more actors. This is final state, after this call actor get dropped. Read more
fn start<Addr>(self) -> Addr where
Self: Actor<Context = Context<Self>> + ActorAddress<Self, Addr>,
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Self: Actor<Context = Context<Self>> + ActorAddress<Self, Addr>,
Start new asynchronous actor, returns address of newly created actor. Read more
fn start_default<Addr>() -> Addr where
Self: Default + Actor<Context = Context<Self>> + ActorAddress<Self, Addr>,
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Self: Default + Actor<Context = Context<Self>> + ActorAddress<Self, Addr>,
Start new asynchronous actor, returns address of newly created actor.
fn create<Addr, F>(f: F) -> Addr where
F: FnOnce(&mut Context<Self>) -> Self + 'static,
Self: Actor<Context = Context<Self>> + ActorAddress<Self, Addr>,
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F: FnOnce(&mut Context<Self>) -> Self + 'static,
Self: Actor<Context = Context<Self>> + ActorAddress<Self, Addr>,
Use create
method, if you need Context
object during actor initialization. Read more
impl<H: IntoHttpHandler> Handler<Signal> for HttpServer<H>
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Signals support
Handle SIGINT
, SIGTERM
, SIGQUIT
signals and send SystemExit(0)
message to System
actor.
type Result = ()
The type of value that this handle will return
fn handle(&mut self, msg: Signal, ctx: &mut Context<Self>)
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Method is called for every message received by this Actor
impl<H: IntoHttpHandler> Handler<PauseServer> for HttpServer<H>
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type Result = ()
The type of value that this handle will return
fn handle(&mut self, _: PauseServer, _: &mut Context<Self>)
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Method is called for every message received by this Actor
impl<H: IntoHttpHandler> Handler<ResumeServer> for HttpServer<H>
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type Result = ()
The type of value that this handle will return
fn handle(&mut self, _: ResumeServer, _: &mut Context<Self>)
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Method is called for every message received by this Actor