Video: Nws txhais li cas rau kev ua haujlwm kom rov ua haujlwm dua?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
A function yog reentrant yog nws ua tau beinvoked thaum twb nyob rau hauv tus txheej txheem ntawm executing. Qhov ntawd yog , a function yog reentrant yog nws ua tau raug cuam tshuam hauv nruab nrab ntawm kev ua tiav (piv txwv li, los ntawm lub teeb liab lossis cuam tshuam) thiab rov hais dua ua ntej qhov kev cuam tshuam kev ua tiav.
Kuj nug, dab tsi yog reentrant function nyob rau hauv embedded systems?
A reentrant muaj nuj nqi yog ib qho uas yuav siv tau los ntawm ntau tshaj ib txoj hauj lwm concurrently tsis ntshai ntawm cov ntaub ntawv kev noj nyiaj txiag. A reentrant muaj nuj nqi tuaj yeem cuam tshuam txhua lub sijhawm thiab rov pib dua tom qab lub sijhawm tsis muaj cov ntaub ntawv poob. Reentrantfunctions siv cov kev sib txawv hauv zos lossis tiv thaiv lawv cov ntaub ntawv thaum siv cov kev hloov pauv thoob ntiaj teb.
Ib sab saum toj no, qhov sib txawv ntawm reentrant thiab xov ruaj ntseg ua haujlwm yog dab tsi? Xov zoo code txhais tau tias koj tuaj yeem hu rau muaj nuj nqi ntawm ntau yam xov . Reentrant codemeans tias koj tuaj yeem ua txhua yam xov nyab xeeb code tuaj yeem dobut kuj lav kev nyab xeeb txawm koj hu tib yam muaj nuj nqi nyob rau hauv tib yam xov.
Tom qab ntawd, ib tug kuj yuav nug, dab tsi yog reentrant txheej txheem?
A txheej txheem reentrant yog ib qho uas ib daim ntawv theej ntawm qhov program code tuaj yeem muab faib los ntawm ntau tus neeg siv thaum lub sijhawm tib lub sijhawm. Re nkag muaj ob yam tseem ceeb: Cov programcode tsis tuaj yeem hloov kho nws tus kheej thiab cov ntaub ntawv hauv zos rau txhua tus neeg siv yuav tsum tau muab cais ua ke.
Reentrant kernel yog dab tsi?
Reentrant Kernel : Ib re-entrant ntsiav enables cov txheej txheem (los yog, kom meej meej, lawv coj ntsiav threads) muab lub CPU thaum nyob hauv ntsiav hom. Cov txheej txheem no tseem tuaj yeem nkag mus rau I / O (uas xav tau ntsiav functions), zoo li cov neeg siv tswv yim. Lub kaw lus nyob twj ywm thiab CPUtime pov tseg vim IO tos raug txo.
Pom zoo:
Nws txhais li cas thaum nws hais tias hu rov qab?
Hu rau tuav, Hu los ntawm lwm tus neeg sab nrauv, On tuav lossis Hu rau Hold tshwm thaum tus neeg koj tab tom tham tso rau koj tuav. Hu rov qab los yog hu rov qab los ntawm lwm tus neeg sab nrauv tshwm thaum tus neeg koj tab tom tham coj koj tawm
Vim li cas nws tseem ceeb kom khaws cov ntaub ntawv tsis pub lwm tus paub hauv kev noj qab haus huv thiab kev saib xyuas kev noj qab haus huv?
Ib qho tseem ceeb tshaj plaws ntawm kev ceev ntiag tug yog tias nws pab tsim thiab txhim kho kev ntseeg siab. Nws muaj peev xwm tso cai rau cov ntaub ntawv pub dawb ntawm cov neeg siv khoom thiab cov neeg ua haujlwm thiab lees paub tias tus neeg siv khoom lub neej thiab txhua yam teeb meem thiab teeb meem uas lawv muaj rau lawv
Puas yog nws rov qhib dua lossis rov qhib dua?
Rov qhib lossis rov qhib dua, nws pib ua haujlwm, lossis nws qhib rau tib neeg siv, tom qab raug kaw rau lub sijhawm: Lub tsev khaws puav pheej tau rov qhib dua tom qab ze li ob xyoos ntawm kev tsim kho dua tshiab. Nws dai ib daim paib ntawm lub qhov rooj ntawm lub khw uas hais tias nws yuav rov qhib thaum 11.00
Nws txhais li cas thaum nws hais tias qhov yuam kev tau tshwm sim ntawm ps4?
Qhov no yuam kev tshwm sim vim hais tias cov games orapplications crash. Feem ntau hais lus, nws yog tshwm sim los ntawm PS4 corrupted cov ntaub ntawv los yog lub system software teeb meem. Koj tuaj yeem sim cov kev daws teeb meem hauv qab no los daws qhov teeb meem no step bystep
Nws txhais li cas los tsim ib txoj haujlwm txhais ntawm lub tswvyim?
Qhov tseeb, lub ntsiab lus txhais qhia koj tias lub tswv yim txhais li cas, thaum lub ntsiab lus ua haujlwm tsuas yog qhia koj seb yuav ntsuas nws li cas. Lub tswv yim txhais tau hais tias koj cov kev tsim kho yog dab tsi los ntawm kev piav qhia seb lawv cuam tshuam li cas rau lwm cov qauv. Qhov kev piav qhia thiab tag nrho cov tsim nws hais txog yog abstract