2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Ua ntej, O_APPEND lossis qhov sib npaug FILE_APPEND_DATA ntawm Windows txhais tau tias increments ntawm qhov siab tshaj plaws ntawm cov ntaub ntawv (cov ntaub ntawv "ntev") yog atomic nyob rau hauv cov neeg sau ntawv. Qhov no tau lees paub los ntawm POSIX, thiab Linux, FreeBSD, OS X thiab Windows tag nrho siv nws kom raug.
Puas sau ntawv Atomic?
Atomically sau rau hauv cov ntaub ntawv ntawm POSIX-raws li tshuab thaum khaws cia tso cai. Ntawm feem ntau Unix systems, mv yog kev ua haujlwm atomic. Qhov no ua rau nws yooj yim los sau rau cov ntaub ntawv atomically tsuas yog siv cov haujlwm mv. Txawm li cas los xij, qhov no yuav rhuav tshem cov kev tso cai ntawm cov ntaub ntawv qub.
Python puas sau Atomic?
Ib qho yooj yim snippet uas siv atomic sau siv Python tempfile. Cov ntaub ntawv temp yuav tsum nyob rau tib cov ntaub ntawv system raws li cov ntaub ntawv yuav tsum tau hloov. Cov cai no yuav tsis ua haujlwm zoo rau cov kab ke nrog ntau lub tshuab ua ntaub ntawv. Lub npe hu ua TemporaryFile xav tau ib qho dir=paramter.
Atomic sau dab tsi?
Piv txwv li, atomic nyeem / sau ua haujlwm. … Piv txwv li, thaum nkag los yog hloov ib qho cuab yeej yog atomic, nws txhais tau tias uas tsuas yog ib qho kev nyeem lossis sau ntawv tuaj yeem ua tau ib zaug. Yog tias koj muaj ib qho kev pab cuam uas nyeem cov cuab yeej atomically, qhov no txhais tau tias cov cuab yeej hloov pauv tsis tau thaum lub sijhawm nyeem ntawv no.
Puas Linux sau Atomic?
Txij li thaum sau ntawv mus rau cov ntaub ntawv ib txwm muaj feem ntau ua tiav ntawm kernel buffers thiab ua tiav cov ntaub ntawv raulub cev cia khoom yog yeej tsis yog atomic, cov xauv tsim nyog los muab cov kev lees paub no tsis tas yuav kav ntev.
Pom zoo:
Cov ntaub ntawv qhia ntawv puas txhawb nqa cov ntaub ntawv kawm?
Cov ntaub ntawv qhia yuav tsum txhawb nqa txoj kev kawm lub tswv yim, cov hom phiaj thiab cov hom phiaj ntawm Cheeb Tsamthiab cov hom phiaj ntawm cov ntaub ntawv kawm uas cov ntaub ntawv yuav raug siv. … Cov ntaub ntawv qhia yuav tsum ua tau raws li cov qauv zoo ntawm cov ntsiab lus tseeb thiab kev nthuav qhia.
Puas yog cov ntaub ntawv sau tseg hauv cov tsiaj ntawv?
Daim Ntawv Ceeb Toom Phau Ntawv Qhia yuav raug muab sau ua cov tsiaj ntawv ib yam li cov qauv Cov Ntawv Qhia, Ua Haujlwm Tshaj Tawm, lossis Bibliography ua tiav, los ntawm tus thawj coj lub xeem lub npe lossis, yog tias tsis muaj tus sau, los ntawm thawj lo lus ntawm lub npe (tsis suav nrog a, ib, and the).
Thaum cov ntaub ntawv tshiab cuam tshuam nrog kev muab cov ntaub ntawv qub no hu ua?
Nrog retroactive cuam tshuam, cov ntaub ntawv tshiab cuam tshuam lub peev xwm rov qab cov ntaub ntawv qub. Nrog kev cuam tshuam tsis zoo, nws yog qhov rov qab: cov ntaub ntawv qub cuam tshuam qhov rov qab los ntawm cov ntaub ntawv tshiab tau kawm.
Puas yog cov ntaub ntawv sib tw cov ntaub ntawv raug cai?
Kev tsim "Cov ntaub ntawv cog lus" yog cov ntaub ntawv sau uas txhais lub luag haujlwm, kev lav phib xaub, thiab "Ua haujlwm" raws li Daim Ntawv Cog Lus Tsim Kho, thiab raug cai lij choj rau ob tog (Tswj thiab tus neeg cog lus).
Cov ntaub ntawv twg muaj cov ntaub ntawv bituminous?
Nws muaj ob chav kawm ntawm cov khoom siv bituminous: (1) asph alt; thiab (2) tar. Cov ntaub ntawv no feem ntau yog siv los ua dej-pov thawj sealants, thiab ua cov ntaub ntawv los tuav cov aggregate ua ke nyob rau hauv bituminous pavements. Dab tsi yog cov khoom siv bituminous?
