Yuav ua li cas kom tsis txhob muaj haiv neeg nyob rau hauv threads?
Yuav ua li cas kom tsis txhob muaj haiv neeg nyob rau hauv threads?

Video: Yuav ua li cas kom tsis txhob muaj haiv neeg nyob rau hauv threads?

Video: Yuav ua li cas kom tsis txhob muaj haiv neeg nyob rau hauv threads?
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Anonim

Haiv neeg tej yam kev mob tuaj yeem zam tau los ntawm kev tsim nyog xov synchronization hauv cov ntu tseem ceeb. Xov synchronization tuaj yeem ua tiav siv lub synchronized thaiv ntawm Java code. Xov synchronization kuj tuaj yeem ua tiav siv lwm yam kev sib koom ua ke xws li cov xauv los yog atomic variables xws li java ua.

Ib yam li ntawd, nws tau nug tias, peb yuav tsum ceev faj txog kev sib tw li cas?

Rau zam kev haiv neeg peb xav tau Kev sib nrig sib cais. Mutual Exclusion yog ib txoj hauv kev ua kom paub tseeb tias yog ib txoj kev siv ib qho sib txawv los yog cov ntaub ntawv, lwm cov txheej txheem yuav raug cais tawm ntawm ua tib yam.

Tom qab ntawd, lo lus nug yog, muaj pes tsawg tus txheej txheem raug tso cai nyob rau hauv lawv qhov tseem ceeb yog tias kev sib tw yuav raug tiv thaiv kom tsis txhob tshwm sim? Kom zam haiv neeg tej yam kev mob , kev sib nrig sib cais yuav tsum tau tswj nyob rau hauv ntu tseem ceeb . Txwv tsis pub ntau tshaj ib txheej txheem los ntawm kev siv lub cim xeeb sib koom tib lub sijhawm. Yog tsis muaj ob txheej txheem nkag lawv cov seem tseem ceeb tib lub sijhawm, tsis muaj haiv neeg tej yam kev mob.

Kuj tseem paub, dab tsi yog haiv neeg mob hauv xov?

A haiv neeg mob tshwm sim thaum ob lossis ntau dua xov tuaj yeem nkag tau cov ntaub ntawv sib koom thiab lawv sim hloov nws tib lub sijhawm. Vim lub xov teem sijhawm algorithm tuaj yeem sib pauv ntawm xov thaum twg los tau, koj tsis paub qhov kev txiav txim nyob rau hauv uas lub xov yuav sim nkag mus rau cov ntaub ntawv sib koom.

Qhov xwm txheej haiv neeg muab piv txwv li cas?

Ib qho yooj yim piv txwv ntawm a haiv neeg mob yog lub teeb hloov. Hauv qee lub tsev muaj ntau lub teeb hloov pauv txuas nrog lub teeb qab nthab. Thaum cov hom circuits no tau siv, txoj haujlwm hloov pauv yuav tsis cuam tshuam. Yog tias lub teeb qhib, txav los ntawm nws txoj haujlwm tam sim no tig lub teeb tawm.

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