Westar-方圓-Rust 異步編程原理和實(shí)踐

Rust異步編程原理和實(shí)踐分層歡迎部署Move合約What'sfuture?structMyTcpStream{nread:u64,callback:0ption<Box<Fn(u64)>>,AndAndtypeError;selfPollselfPollSelfItemSelfErrostructMyTcpStream{socket:TcpStream,nread:u64,implFutureforMyTcpStream{typeItem=u64;typeError=io::Error;loop{matchself.socket.readAsync::NotReady=>(&mutbuf){returnAsync::Ready(self.nread),self.nread+=n,returnAsync::NotReady,Async::NotReady=>Async::NotReady,thenwillmovepreviousfutureAndAndthen1Andthen2Andthen1Andthen2Andthen1Andthen2Andthen1Andthen2MyTcpStream::connect(&remote_addr)MyTcpStream::connect(&remote_addr)io::read_exact(sock,10))handshake)|{validate(handshake);validate(handshake);io::io::read_exact(sock,10))response)|{.and_then(|(sock,process(response)})tokio::spawn(future)state:AtomicUsize,blocking:AtomicUsize,next:AtomicPtr<Task>,next_blocking:AtomicPtr<Task>,future:UnsafeCell<Option<TaskFuture>>,AndAndthen1Andthen2Andprintln!({tokio::run(server);PollEvented<mio::net::TcpStream>io_io_dispatch:RwLock<Slab<Scheduledlo>>pollregisterspawnedtasktask::current()->fncloneid(&selfidusizeusizethistraitneedimplementedbyschedulerdequethreadparkthreadunparkTaskTaskTaskTaskworker1TaskTaskTaskTaskwoker2TaskTaskTaskTaskworker3}}}#[tokio::main]Box<dynError>>{TcpStream:connectawait1f().await}implFutureforB{typeOutput=i32;fnpoll(mutself:Pin<&mutSelf>,cx:&mutContext)->Poll<Self::Output>{asyncfnoffchainpayhtlc(router:&Router,receiveraddress:AccountAddress,_amount:u64,_timeout:u64,)->Result<()>{letpathrouterfindpathbyaddpaymultihoprequest(path,amount,hashlock,timeout).await?}receiveraddress:_amount:u64,{AccountAddress,Pin<&mutPoll<Self::Output>{}_timeout:u64,router:Router,findpathfuture:Option<Future<Output=X>>,payfuture:Option<Future<Output=()>>,matchUnpolledselfself.state{matchself.findpathfuture.poll(cx){enumUnpolled,GetPath,Pay(path),Ready,self.state}matchselfReady#![feature(generators,generatortrait)]usestd::ops::{Generator,GeneratorState};fnmain(){letmutgenerator=||{}mutmutyieldsum;}impl<T:Generator<yield=()>>FutureforGenFuture<T>{typeOutput=T::Return;fnpoll(self:Pin<&mutSelf>,cx:&mutContext<'>)->Poll<Self::Output>{//Safebecausewe're!Unpin+!Dropmappingtoa?Unpinvalueletgen=unsafe{Pin::mapuncheckedmut(self,|s|&muts.0)};letguardunsafesettaskcontextGeneratorState::Yielded(())=>Poll::Pending,GeneratorState::Complete(x)=>Poll::Ready(x),macrorules!awaitmacro{($e:expr)=>({{breakx;yieldReqsReqs/spubstructAntRouter{_inner:Option<AntRouterInner>,networkreceiver:Option<UnboundedReceiver<(AccountAddress,RouterNetworkMessage)>>,controlreceiver:Option<UnboundedReceiver<Event>>,controlsender:UnboundedSender<Event>,_statsmgr:Arc<Stats>,}structAntRouterInner{networksender:UnboundedSender<(AccountAddress,RouterNetworkMessage)>,wallet:Arc<Wal