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Ensobi payloads mu Zig

Ensobi payloads mu Zig Okwekenenya kuno okujjuvu okw’ensobi kuwa okwekenneenya mu bujjuvu ebitundu byayo ebikulu n’ebigendererwa ebigazi. Ebitundu Ebikulu Ebitunuuliddwa Okukubaganya ebirowoozo kuno kwesigamye ku: Enkola n’enkola enkulu Real-...

7 min read Via srcreigh.ca

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Hacker News

Emigugu gy'ensobi mu Zig: Engeri Zig gy'eddamu okulowooza ku nkwata y'ensobi ku Koodi y'enkola ezisingako obukuumi

Ensobi ezisasulwa mu Zig zisobozesa abakola okugattako data y’embeera ku miwendo gy’ensobi, okugonjoola ekizibu ekimaze ebbanga eky’okufiirwa amawulire agakwata ku kukebera nga basaasaanya ensobi okuyita mu migogo gy’okuyita. Okwawukana ku koodi z’ensobi ez’ennono oba enkola z’okujjako ez’obuzito obuzito, enkola ya Zig ekuweereza ensengeka, embeera y’ensobi ekebereddwa mu kiseera ky’okukung’aanya awatali kusaddaaka nkola oba okusoma.

Error Payloads Kiki era Lwaki Zig Ezeetaaga?

Engeri ya Zig ey'okukwata ensobi ezimbiddwa okwetoloola ebibiina by'ensobi, enzimba ey'omutendera gw'ekika ewaliriza abayita okukkiriza n'okukwata ensobi mu bulambulukufu. Omukago gw'ensobi gugatta ekika ky'okudda ekya bulijjo n'ekibiina ky'ensobi, ekiwandiikiddwa nga ErrorSet!ReturnType. Omulimu bwe gulemererwa, guzzaayo omuwendo gw'ensobi okuva mu seti. Okusoomoozebwa mu byafaayo kubadde nti koodi z’ensobi ez’obwereere tezitwala nsonga ndala: omanyi kiki ekyagenda obubi, naye si wa, lwaki, oba n’okuyingiza ki okwetongodde.

Ensobi ezisasulwa zikola ku bbanga lino. Nga bagatta amawulire ag’okugatta ku mabbali g’akabonero k’ensobi, abakola basobola okubunyisa okuzuula okw’amakulu awatali kuddukira mu mbeera ya nsi yonna, okutereka okw’omu kitundu, oba ebipimo eby’ebweru. Enkola eno ekuuma obufirosoofo bwa Zig obw’okuggya ebintu mu ngeri ya zero-cost abstraction nga tebukyuse kubanga payloads zigabanyizibwa era ne zijjula nga ensobi ebaddewo ddala, so si ku kkubo ly’obuwanguzi.

Emigugu gy'ensobi Gigeraageranya gitya n'okukwata ensobi mu nnimi endala?

Okutegeera okulonda kwa Zig mu dizayini kweyoleka bulungi bw’ogeraageranya enkola yaayo ey’ensobi n’ebirala mu nkola y’enkola ya pulogulaamu y’obutonde:

  • C's errno and return codes: Ensonga y'ensobi eterekebwa mu nkyukakyuka ey'ensi yonna, ekigifuula etali ya bukuumi mu thread awatali kukangavvula kwegendereza. Tewali kussa mu nkola kwa mukung'aanya, kale ensobi zisiwuuka empisa mu ngeri etali ya maanyi.
  • Okujjako C++: Okujjako kutwala emigugu egy'omugaso mu butonde, naye kuleeta okutambula kw'okufuga okukwese, okuziyiza okulongoosa okumu, era kwongera ku sayizi ya binary overhead. Ttiimu nnyingi eziteekeddwamu n'ez'okukulaakulanya emizannyo zizilemesa ddala.
  • Ekivudde mu Rust: Enkola ya Rust y’esinga okubeera ey’oluganda. Enums z’ensobi ez’enjawulo ezirina data ezikwatagana zituuka ku kikolwa ekifaananako, naye ensengeka z’ensobi za Zig zisingako obuzito era zikwatagana n’ebigambo ebikulu eby’olulimi try ne catch ku ddaala ly’ensengeka.
  • Go's multi-return (omuwendo, ensobi): Go ekubiriza ensobi z'okuzinga n'ebika bya fmt.Errorf oba sentinel, naye omukung'aanya takaka kukwata. Ensobi ze miwendo gya nsengekera eya bulijjo nga tewali kukebera kujjuvu kwa kiseera kya kukungaanya.
  • Ensobi za Zig zigatta ne payloads: Zig ekwata ekifo eky’omu makkati, egaba enkwata ekakasibwa omukung’aanya, zero-cost ku kkubo ly’obuwanguzi, n’obusobozi okugattako ensengeka entegeke awatali kugabanya ntuumu nga ekozesebwa ne data ekwata ku stack-scoped.

Ekifaananyi kino kiraga omuze ogw’olwatu mu nteekateeka y’olulimi: amakolero gakwatagana ku kukwata ensobi eziwandiikiddwa, ezikakasibwa, era Zig eyongera okunyigiriza ensalo eyo ng’efuula emigugu egy’omutindo ogusooka okweraliikiriza mu nkola y’emirimu awatali kufiirwa ku nsaasaanya y’obudde bw’okudduka.

Mu butuufu Okussa mu nkola Kufaanana Kutya mu Nkola?

Mu koodi ya Zig ey’enkola, emigugu gy’ensobi gyeyolekera okuyita mu nkola ng’emirimu gizzaayo struct oba tagged union nga zizinga byombi okugabanya ensobi ne data ey’okugatta. Lowooza ku fayiro parser eyeetaaga okuloopa si "invalid format" yokka wabula byte offset ne token etasuubirwa esangibwa. Mu kifo ky'okuyingira mu stderr oba okukweka ebikwata ku mukutu gw'ebbali, omulimu guzzaayo struct ya payload erimu offset, token set esuubirwa, ne bytes entuufu ezizuuliddwa.

Ekigambo ekikulu try kisaasaanya ensobi zino ezigaggawalidde waggulu ku lujegere lw'okuyita mu ngeri ey'otoma, era ku mukwasi w'omutendera ogw'oku ntikko, osobola okukwatagana n'ensengekera ku kiwandiiko ky'ensobi n'oggyamu omugugu gw'okuwandiika, okulaga, oba enzikiriziganya y'okuzzaawo. Kino kifuula Zig codebases okulongoosebwa mu ngeri eyeewuunyisa kubanga buli kkubo ly’ensobi litwala omutendera gwalyo ogw’okunoonyereza ku misango.

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Key Insight: Omugaso ogusinga okukwata ku payloads z'ensobi si nneeyisa ya runtime; kibeera kya kutegeera. Buli nsobi bw’etwala embeera yaayo, abakola bamala obudde butono nga bazzaawo ebiremye ate obudde bungi nga babitereeza. Emigugu gy'ensobi gifuula "ekintu kyatambula obubi" mu "ekintu kino ekitongole kyagenda bubi wano, n'ebiyingizibwa bino," ne zigwa enzirukanya y'okulongoosa okuva ku ssaawa okutuuka ku ddakiika.

nga bwe kiri

Biki Ebikwata ku Nsi Entuufu ku Nkola z’Okufulumya?

Ttiimu ezitwala Zig ku nkola y’okufulumya, okuva ku mpeereza z’omukutu okutuuka ku firmware eziteekeddwamu, zitegeeza okulongoosa okupima mu kiseera ekigere okutuuka ku kugonjoola (MTTR) nga emigugu gy’ensobi gikozesebwa mu nkola. Omuze gukubiriza empisa nga buli mulimu oguyinza okulemererwa guwandiika engeri gye gulemererwa n’obukakali bwe bumu n’endagaano yaago ey’obuwanguzi.

Ku bibiina ebiddukanya enkola enzibu, kino kiraga amazima ag’emirimu agagazi: embeera y’ensobi entegeke ye mukubisaamu amaanyi eri yinginiya ow’okwesigamizibwa. Oba olondoola packet etali ntuufu okuyita mu mugogo gw’omukutu oba okuzuula okulemererwa kw’okusengejja ensengeka mu payipu y’okuteeka mu nkola, enjawulo wakati wa koodi y’ensobi etaliiko kintu n’omugugu ogusasulwa n’ekkubo lya fayiro, ennamba ya layini, n’ekisuubirwa schema ye njawulo wakati w’okutereeza okw’eddakiika ttaano n’okunoonyereza okw’essaawa nnya.

Omusingi guno gusukka ennimi za pulogulaamu. Enkola yonna ekuyamba okukwata, okubunyisa, n’okukola ku mbeera entegeke ng’ebintu bitambula bubi, okuva ku migugu gy’ensobi mu koodi okutuuka ku daasiboodi ezikola mu bikozesebwa mu bizinensi, ekendeeza nnyo ku nsaasaanya y’okulemererwa.

Ebibuuzo Ebitera Okubuuzibwa

Emigugu gy'ensobi mu Zig giweebwa entuumu?

Si kituufu nti. Zig ewa abakola obuyinza ku nkola y’okugaba. Payloads zisobola okubeera ku stack singa obulamu bwazo buba scoped ku function eriwo kati oba okugabibwa mu bulambulukufu nga zeetaaga okusigala nga ziyita mu nsalo z’okuyita. Okukyukakyuka kuno kitegeeza nti weewala okugabanya entuumu okutegeerekeka enkola ezesigamiziddwa ku kujjako mu C++ oba Java ze ziteeka. Mu makubo agakulu mu kukola, emigugu egy'obungi bwa stack byongera ku zero allocation overhead ku kkubo ly'ensobi.

Ensobi ezisasulwa zikwatagana zitya n'ebintu bya Zig ebya comptime?

Engeri ya Zig ey'okukola mu kiseera ky'okukung'aanya ekkiriza ensengeka z'ensobi n'ebika byazo ebikwatagana n'emigugu okukakasibwa mu kiseera ky'okukung'aanya. Omukung’aanya asobola okukakasa nti buli kiwandiiko ky’ensobi mu seti erina omukwasi akwatagana era nti ebika by’emigugu bisaanyeewo bulungi ku buli kifo ky’okuyita. Kino kimalawo kiraasi yonna ey’ebyewuunyisa eby’ekiseera ky’okudduka ng’ensobi ekwatiddwa naye nga omugugu gwayo gutaputibwa bubi oba ne gusiwuuka empisa, ensibuko eya bulijjo ey’okulemererwa okusirise mu nkola z’ensobi eziwandiikiddwa mu ngeri etali nnywevu.

Nkozese emigugu gy'ensobi ku buli mulimu oguyinza okulemererwa?

Kozesa payloads nga embeera y'ensobi eyamba mu ngeri ey'amakulu okuddamu oba okulongoosa kw'omuyita. Ku mirimu egyangu nga ekisengeke ky’ensobi kitono era nga kyeyoleka, gamba ng’okulemererwa kw’okugaba, akabonero k’ensobi obwereere kamala. Teeka payloads ku mirimu nga mode y'okulemererwa esinziira ku mbeera y'okuyingiza: okusengejja, okukakasa, I/O n'ebigendererwa ebitongole, oba okukwata protocol. Okusukkiridde okukozesa ebikozesebwa ebitali bikulu kyongera amaloboozi awatali kulongoosa kulongoosa.

Zmba Enkola Ennungi Nga Okozesa Ebikozesebwa Ebituufu

Oba owandiika empeereza za Zig ezigumira embeera oba okuddukanya emirimu gya bizinensi enzibu, obuwanguzi businziira ku kuba n’enkola entegeke ezifulumya amawulire amatuufu mu kiseera ekituufu. Mewayz ereeta obufirosoofo obwo bwe bumu mu nzirukanya ya bizinensi: Module 207 ezigatta ezikoleddwa okuwa ttiimu yo embeera entegeke mu buli nkola y’emirimu, okuva ku kulondoola pulojekiti okutuuka ku mpuliziganya ya bakasitoma. Weegatte ku bakozesa 138,000 abakyusizza okuteebereza kw'emirimu n'okutegeera obulungi. Tandika okugezesa kwo okw’obwereere ku app.mewayz.com era olabe OS ya bizinensi ezimbiddwa ttiimu ezigaana okubuuka nga zizibe.

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