A binary semaphore yog txwv rau qhov txiaj ntsig ntawm xoom lossis ib qho, thaum lub suav suav suav tuaj yeem xav tias tus nqi tsis muaj nuj nqis. Ib qho binary semaphore tuaj yeem siv los tswj kev nkag mus rau ib qho peev txheej. Tshwj xeeb, nws tuaj yeem siv los tswj kev sib nrig sib cais rau qhov tseem ceeb hauv cov neeg siv code.
Puas yog semaphore a binary mutex?
Binary semaphore thiab mutex zoo sib xws tab sis tsis zoo ib yam. Mutex yog tus nqi ua haujlwm vim muaj kev tiv thaiv cov txheej txheem cuam tshuam nrog nws. Mutex tswj kev nkag mus rau ib qho kev sib koom ua ke. Nws muab cov haujlwm kom tau txais kev nkag mus rau cov peev txheej ntawd thiab tso nws thaum ua tiav.
Vim li cas semaphore zoo ib yam li binary?
Lub binary semaphores yog heev zoo ib yam li suav semaphores, tab sis lawv tus nqi raug txwv rau 0 thiab 1. ntu tseem ceeb. Suav Semaphore tsis muaj kev sib nrig sib cais whereas Binary Semaphore muaj Mutual exclusion.
Qhov twg zoo dua binary semaphore lossis mutex?
A Mutex yog qhov txawv dua li lub semaphore vim nws yog lub ntsuas phoo thaum lub semaphore yog lub cim qhia. Ib tug binary semaphore tuaj yeem siv los ua Mutex tab sis Mutex tsis tuaj yeem siv los ua semaphore.
Semaphore thiab nws hom yog dab tsi?
Txheej txheem cej luam: Semaphores yog cov ntaub ntawv sib xyaw nrog ob daim teb ib qho yog Non-negative integer S. V thiab qhov thib ob yog Txheej txheej txheem hauv kab S. L. Nws yog sivlos daws cov teeb meem tseem ceeb, thiab los ntawm kev siv ob txoj haujlwm atomic, nws yuav raug daws. Hauv qhov no, tos thiab teeb liab uas siv rau cov txheej txheem synchronization.
