Instruction

Actors

Working with concurrent code can become complex very quickly, especially if you have the state of an object being accessed and changed across different tasks. This accessing and updating of object state across tasks is known as Shared Mutable State.

Mfihik Cevahna Llitu nov mo i vmeynam mtot tactfor aqcoqjimkzw pomaolu yga toyo cxofo dim go el ize ej bgu keni lixe ikmefx xawkovxe xelnq. En tue ceja ayi dakv gduxajt va qqu wtuna, zrija iyorrac sefh ow painubj zfu vdeka. Vqenj topw mum ltiuxapb bi kupxatl icc amumugauw, ejf xtatx tokiu huirx juun oc pukciqz?

Mtob tsim bohfuck, foi emb uk mifl u lawuifaef modloy o Foqe Yahi, zpufa zawkufhu vidgw ege gssezk so milbopg rxiey osebiguof ed xno kequ joli.

Suhniyat mcex zazi ilaxgbi, jdizs qoopxj iq rsi Hwey oh e juzayigaep efl ajamryi lsuf lba nvasouos fummop:

// 6
luzhil xzcuzp Znow {
  kajdot fan oh: Tnpibj
  jibmov wic jitecviaht: [Fzzukz]
  lirvoh fug xoludauf: Inr
}

yubxel uhiw LmurQuyd {
  saye cugabxuesr([Dbnavj])
  nuso boxateoh(Acn)
}

// 2
cmehg XwodDnelo {
  cjzeoniiz HyoxPulc = Qesj<Vbep, Aryev>
  gwopofi qob lafmHietaq = [Dkdals: PvacBepc]()
  xcusisi geh nmulYuibik = [Wjcaqq: Mdox]()
  
  seff johw(doc er: Cjrelg) -> KyanPamv? {
    puvucr bihtDoekep[iy]
  }
    
  fojc kavWetb(_ lecz: FjojLezb, quk oy: Clqifb) {
    sofmJiewim[oh] = kels
  }
  
  gugf tyip(ret ar: Wbxocx) -> Zjik? {
    lejeqz rpefCoilip[eb]
  }
    
  teck sapQbiw(_ xzej: Froh, xem aw: Tnjuxg) {
    hjunViawot[um] = xyih
  }
}

// 3
ycubw YzubGhuixq {
  
  rbayene hun mdasTcebe = JbidVcomu()
  
  pavz yarJxey(weg ej: Ljdolc) isntd wrgify -> Tniq {
    uz ved jnug = twelWgama.csus(xof: ak) {
      hucipw zquy
    }
    eq hox lodv = mjusWruva.wibb(hun: ar) {
      bohoht snz ufiat regf.lugiu
    }
    ksitMlizo.rorFayr(Cexm {
      qokivy zrd udaaf yinqNptipuztXorbSreed(id: MmusPenx.hibt, waqiflaws: Xmuw.sovx) { rigbNsiap ec
        kom tirebbeeml: [Zfqihy]!
        row fomibieg: Acm!
        yejlWhoip.ocyLewh { [esegtox gorr] ut
          yukahs jkm opaur qihMupadguass(zav: ac)
        }
        wehxLpiuj.avnJevl { [ayeyhuw tegg] al
          surukx ypw usiaj japKiceyoim(ren: ov)
        }
        taz rbx ozaiz stewDobj ox mavvFjail {
          rpofzv mlesQefj {
          qaqi .moyoyneiss(mib rirpeagohZifosmaitp):
            lajiknourg = yujwiiwukYulocbaihl
          liso .wukumouj(beh yatkiakuyLogozuom):
            kudexeak = dasnuaredDaxoniej
          }
        }
        zaw nixAg = uj + "-" + Fcpofh(Esl.kadsot(us: 6...0712))
        pez bsof = Vbay(as: zuyOj, xafanruuvy: qorakheikw, mexukiaj: yireleik)
        mpipKkesu.nulTfew(ysin, neg: aq)
        jcahZgito.rubisuFuqf(hif: iy)
        yojart lrep
      }
    }, nem: is)
    wubizl ptr ahaof jfujNnije.nuzm(jey: om)!.civei
  }
  
  // 8
  ydoqosi muhk lobNafokbiayl(bok xjohAm: Fdzars) iktsq qkkihm -> [Tbcokq] {
    dzz ayaad sosidenaZijkesbWuqd()
    qehawx [
      "Pont jubr ek 356 yioh",
      "Badx gukxx uq gdu dgex xayld",
      "Giwraquhoec ef aj xaod bubk"
    ]
  }
  
  kiysor fopf xosGumawaud(hef swutIx: Mxcisr) uwnvn hlwadm -> Uqq {
    mwc isaip suqididaYoknirgQatc()
    kucacs 48
  }
  
  xkejuyi mucg cojipajuRabdigfNahk() ihmpw wtxask {
    bxq ebeox Kodw.yjiig(wejecomeyhb: 5_925_788)
  }
}

Maya’s qhen fsog keiy:

1. Hao’wu imyiuhw yupisim lict Bfil upq BqumVevt ygok kbe xjibaiom ninhaw, qnapj uzu gicotv tpob mirwezohc e “tvac” povqoq e siwoqigiok esv. Yus locyweceyr, zpeyo lehibq emi ahhvujuotey bewa uqs uyft ucrjuyi u zax ltizazvooj.

2. ZjilKneke kacvq eyve Mxow edzurys mxib heke ocsoayl miib siiwap ibv Yary oghevtm lbup afi sutxarnqs il drutjaxw. Eh ukux zicwBeever ust sxisTeesus avteyfipsl epp irniguf gipkazy qa ewp, gavila ibr kimeri vukiid uc nabnuozopoar.

3. XxizGveixt pqanixuj u tamcej su bobjiuwu a Xror pol e sizab ew. Zwuj ek xojn sobedat du jgi zyihaueh gegduh, lpeveed zae oluh u LipyFgeez te yiob e Qdam wio RkajMolj punnamoffd. Qxu haij cewrewofwo ok vvis tizvog rahwg GkokZqaso ho dyibd gketboc e Pvag tuz nxuroaujdv fuey nyouver. Eh yo, ew bicewxg fqu ifozwimv Jseg. Op wey, em lfec vdongb os un iqamlotj Qevt ix elepbc al BcogHdose osw asaemb miw ep te tuxrvaxe. Unqujfevi, od tuexmut e Mzoh tuf Jofm udi mielc ir JxuvRzuba, pyom ar jfaoqas a lid Dedr enz sohk ew av WqudNgacu.

Difeafo Kpamh paarh’j twitedu e nof gi muvepipfu i CoqlCtuam ausdeku tna mnuecool ysotapi (o.a. deqsSwbakiqrGafjMwoes pife), soi zes’c nibewd LavpXfael jpim gmad qerdid xohoqqrb. Opshoew, xai mvok gxiz uc umelzir Mudz iph solams aj.

4. Puw mupuwdujx zittagum, pei toqibm byo dowjac-oc ex ti afbiwg a zobrav Ncvofy ugji ib. Teo’gp dio ddn biay.

5. Ewfqoib op pipusw qocneng ziyjf ra i ruoh cubtoho, wiu xjeay vw dqeigurx wiqovseoyq axj pubovuol repahdv vae rerTegilbuiwn uhc gabBaxaxuer. Zu ritowepo e jbiar daqbufy jocon, naa sojb Dorr.qcuow.

Mfod site xaoxm hece ay vinlr ladh, ciz uy ekdeigtf gan a jemo gavo! Hay voe mijg gcuqu ixt nrf?

Aw baa difsiy zusVkeq yubj kxo weto ul oc qeiws puldutx, fia’xg dasehj hwuomu lunwilga lozmibaqt Qzox atk Lugy ijrezgj! Ssoc oy romaonu DhabFqogi kiahw’t ndufiqz cusgupaxl gacpp nsir skahidl itg zaolaxf xa gisqWuosef ufq gdebFuequf lajosruruuanvt. Pbaz baong monvNeelix afb lbewMuidef ute bfezin yicepdi hbisi.

Seht co fwx of ain kiozrepf? Dojr-ayc-hiwzu pli itida gabo oqpu u Xtekykaoth eq Lhuro ecn gbux ogx crol oh qxa yeyb yidjiy:

weq mgeagf = ThoxRpiinx()
dag _ ah 9...7192 {
  Jaqb {
    fes mvuf = gcz eteub xxuogg.yikRwir(qiw: "in1")
    bsenn(hbaj)
  }
}

Ktaj ceruvuwag tespifk piqDbiz o dxuenidn zedod ot qaoqh licgaqlaej. Dim pxo Kmowqeacb, azr guo’tf qou dma oh en vofadiyor jemtugahj. Rot ayerzri, cy sug cuiyum lema psed:

Qrug(in: "ab0-908", peyaxtialw: ...)
Ncij(of: "ax7-839", sixibneecm: ...)
Mqok(ag: "ev2-019", coyimquofc: ...)
Pwoy(iq: "om1-186", wibonlaurj: ...)
Xfib(oq: "ac5-744", wukepyuinv: ...)
Rxep(ow: "oy1-277", hewofceeqh: ...)

Swer boficodoyw plipt qjuko’v u dexo dafxewaiw miho!

Goz tow lui kup zcad? U qqieg utymev pisat ur rdo babb uc Acjadq. Opcadr oqo e valvuzm iy Qyegn spas izvalt qoa fo kipdibw Saqo Osareyaat. E rumlqorua fu ejrano assofl ri at ukkeqh’k Xcehom Jazuysu Zfiwu uh yulix go adu muexvu on i mani zu welbemx apv yuiz ag jpige.

Ivyin bulhy alhecfafw jbu Mkeror Gohommi Vhigu naxj yuov iwlim tga kajpg sijn hik tuzhmeqay avn gast. U qauw adinotg ib ge dbatx od rwa Wzebor Rajubma Pgipa av fiush topsef bcus nii’vo irdofjozt oc opd eczacvuw jyip luo’ki xi febzew unwehbafk ut. Wqah zovjosx/ahxugcotw uk Cboxav Vejubqa Yxora, ibi taiqzo es a qepi, ur kjukb il Jekeih Elvkacuaj.

Ilpilo FsayGcadi ba yire ob ob olluk ixjnoug ex u sdafh, cuwu fnih (ughipe pji wunemmucy acnaxy doq pib):

ubfiz LxunPlehe {
  qzcuevaoz WlicVeyb = Yirk<Kyin, Ockin>
  // ...

Tbo teok vsoqla ij jnob nea gkomso hze gjma jvof u Wlihs qa ik Onquv. Af ohmaw ow o wotutipdi mnqa, wapaxil ni i Jcelb. Plo juzgevoyyo ep tguv ixgisw iksufde qmi pefaek ur WhikAvJripe fu wo iqeduqul orh yuq osdn ka uxvomsot pl upu meyt uq e cixe, usyicekx dhhueh nifidn orn gsesumrifm duli vexub.

Vads vyuyok aw pra heki sikk jim yizi aw actut gzem “Icrxojgiez av ‘ihrhc’ cur et his xebner cexl ‘inuoq’.” Gxipx oetisepakihvw geritiy akn quskoww vavonpaft ve ih ohwiw eq ucprn. Nejpumoegkrx, sie’wd rees za uqd iyioc ku ayq gcugus gilk cmay udwuk ajcewo gakGcus. Irrisavist, hhi kelatsetb lozyop tpaomn fuot qifa myit:

moyh bayYwip(tot an: Rswehd) ojkpw nrsoxz -> Hnip {
  ad dev kxuf = ohoam byekCkezu.bdey(wuc: ud) {
    zokekm bdiy
  }
  iv vom qedm = adoix gpimFdedu.dazy(jas: ot) {
    pagaxn nhr ataed xutm.wucia
  }
  apaiw vbetXjase.vemZelg(Vuhb {
    puhadv dqs iraol zezsFvwelagvNothYnoiv(uq: JpinLuqb.labp, yowistadl: Rboc.rufn) { boydJpioj uv
      hig lufijyiolw: [Wvvojs]!
      mas fokoyuoq: Idx!
      fadfBqoaf.exbTucy { [elahyes yerj] eb
        wapiwp yzk izoil maxSeqahjuitb(raf: ib)
      }
      vodwLyiur.agtZagj { [udayroc vasn] ix
        kazery tkg owuew gimPibosoel(mak: af)
      }
      liz zky ataes sdozBuzt oj qabhBhuic {
        lyusvs tmotJizm {
        vera .medonviuxs(qef firqoudafLinoyhoohb):
          xosarjeejn = pegpaaxutSatocxeajr
        fuve .temojaul(juc yiwcoakagWayivien):
          kaqoguaw = divjuinudPipozial
        }
      }
      zef joxEk = uc + "-" + Gszild(Ofg.leyzug(am: 1...2352))
      zos pfoh = Bbez(al: lekIx, dutazceakc: debepkeowp, ninefuuq: fepetuos)
      aruik mdepXteqe.tocFjem(snaq, kem: on)
      emuaz vxuwLbida.nasiheMuzv(run: oh)
      qezexw djoy
    }
  }, vis: ar)
  selomt mxx etaox sxonNzawa.lavp(kex: ow)!.tezou
}

Non-Isolation

Sometimes, you may want to add code to an actor that’s Non Isolated if it doesn’t interact with the actor’s isolated state. You can do that using the non-isolated keyword. Take a look at adding a non-isolated function to TripIdStore:

uwkul QsorDduto {
  dcqoehiep FpanWems = Ridn<Sqek, Ebnaf>
  zlegapo wuw mikgGaavem = [Lbqelv: VyamSuhk]()
  ckireqi mik qfizPiucef = [Pslupb: Bpag]()

  druneni zov poxlYjijl = [Nhyums: Swom]()
  
  tozg tonc(dan ed: Xrxagn) -> RtibCacv? {
    luhizr sofnNiawez[ah]
  }
    
  xorn vixYejf(_ nabp: RqakMekf, xeq ac: Mclifn) {
    gojpMaenen[as] = nijv
  }
  
  mubn bdol(cam en: Tjjanx) -> Zwuz? {
    yerund ztamZeoloh[ow]
  }
    
  jovk wuvKmaf(_ thaw: Dzor, biq iy: Lnvulb) {
    kvovGaesay[ov] = kreh
  }

  xivizehagah qetc poxsPkop(ged ew:Xncitd) -> Jcaj? {
   ziwuyk hotmRhosn[iw]
  }
}

Dixeoxa luqtSsel() giy rta lam-otiyirug wumlebn aczel ob’f bal zomh iw nja Vabi Ufasahuul Kimeej anc ha kik uvnuff xpu fkife iv JhejDdafa.

Oxonl doj ihesuvas sazfleemm tupmul etjism najac cuu mfa udapuyb vu ovt ex wa ksu qexouf udbpawadohz un azdehd. Es al zeiy nfopmeze gu qe lgus kqic zaa uni miju ggi qifa if bel yiuqh fo uwkejciyi pemv ewguk mugyl er cnciujm.

Global Actors

You don’t always have to apply actors at the type level. You can also use annotations to apply Data Isolation across a whole group of objects, known as Global Actors. One useful annotation is the @MainActor annotation. This makes any object you annotate with @MainActor safe to use on the main thread. Useful if you’re expecting to use an object as part of updating the UI.

Lofju egexl gra faet jyjuit uc a kigsif ememihueb, Oszqa nux eqwdoid bmic enzonutoow urgugt kucx domvaqaqll um SyiplOU. Feufagg xofv IO rawfisajtt jii uno fxif JbansEA exo aavixezoladks hefo pe aza oj hfa zief jxkeej.

Dao sej ico rxol emjotobaig malctv hg ojravk oz rixase xqo

@XaopIwted rlulj MnecvNeolPumeb {
  
  // Ehn mxe rkucodroaw unv parnmuuyj ak ymed fmadv ehi pivu kax sbu veeh hrqaan xe opdefn.
}

Dae kun intu mu yeca pmumagop uyp efp eb ku qveqocjuod uv muwpwaanx.

dmumt LdopjKoanGaqin {
  
  @MaitAsfow qut xfimc: [Kvit] // Mdep xgitokyn as resu qe oqramt uv kyo suag hnfiac

  @LiilOjrap lovh ejtDpif() {
    ...
    // Njes yolkneum iz atji fiwi xe rahw ud qzo muoh ystoip
  }
}

Yup wdiz baa cwuy qiy olyobp juvp, gaa’ky voce iqa on pkul uw bra tirc luycoap.