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Esd Unit-5

The document discusses various inter-process communication mechanisms, including pipes, message queues, and mailboxes, highlighting their roles in facilitating data exchange between processes. It also covers synchronization issues such as deadlocks and the importance of device drivers in managing hardware interactions with the operating system. Additionally, it touches on the criteria for selecting real-time operating systems (RTOS) based on functional requirements and performance capabilities.
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0% found this document useful (0 votes)
75 views13 pages

Esd Unit-5

The document discusses various inter-process communication mechanisms, including pipes, message queues, and mailboxes, highlighting their roles in facilitating data exchange between processes. It also covers synchronization issues such as deadlocks and the importance of device drivers in managing hardware interactions with the operating system. Additionally, it touches on the criteria for selecting real-time operating systems (RTOS) based on functional requirements and performance capabilities.
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
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Paorthy Dnversion - Pread look SA rae tondion cs tetonrech cesolts whore a+ o deadlock condulton ake ee ee pounses are ob 49 oe rey 19 Thest exeeshion, resvlling an a sok deodlocked proces: “ite stenplak Bote’ deadlock! is the Condhtion in tebich 9 procs hid 2 “ . voor rng foc O vesoule held by andthe pres whith ts woaithng for a. wesw wd BY Sick pres « on, # holds aresoure ee pec : i rently holding sesovr“e J and “1b held by pres B- pousc ® IS co wast, Te resoure % which % covently held pees a oe Se Ces [rao 4 are — Peadlock visu lakion : we and tt wast, arcsoure Scenorios leading fo deadlock Deadlock tordling Bees g adopt ony of the -followny tehrw ty detest ond prereok J qs Ath estes, = wo ae —jj Aqnore Dead lockt:. qlonys avturre Thal the system dengn dead lock freer this ts acceptable fy te reoson te cost of © dead lock. is loge compared, -f0 the Chance of happening rernoving : a dead look « ! eur- Ywtt, oS vekeck and Recover this approach Sua the detection oF oF Peon 5 cmiloy te The dead lock. sitovolisg and Aecoveny from ibis t dead lok Condition Tak oy anise ot the tohhe qeadton . — / Yosh Syphon febrge e ee yer es 5 —) Procun |rost Stypomenisatton & enenal ox {+ Avordto confit, In etre olcoys Cractng 1 deodd lock, chasvatwry jNivelod eke) no moll aang ennionrrent « 2- Ensoring peo pey eequente, of operakion aur proenses 3. 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' ane, respons : establsbrng he connechi hy tnikiolist the handioare ceething vf von ious . vt sronsheattg, Joke maith fondue de we) ond, ATO oH 5 Certain daves Corre, 05 port of, tre 08 keancl ond crtain duvens need tobe gnsfatied on WE My o ae | os Sei 5 peste doves tahith aoe fort obey te, Of DF orn known) aoill Apne oF oq —boord eR Rin ae he (caida by Eos OE ene OF booking yee dese ‘and! Ore clog! Kept 0 tke eam , PvE tahith need tobe postal fog accening J device Om known oS sinstattable ANOS ox Kennel Space. 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Oi How to choose an R106 Ty # lot of factors needs to be Aoaliysech “ carefellyy before vrai a atetsion on TR selection Sh 20 RTOS they, factors eee }. Functional, denon foncdional Stee Shade vaieyteonnery (ti MS ee a alt kindy of Proceasor anchitectos TE MS emenfral 1? ete procersov support by Te ecTOS reernonyy fer hota peo Memon requirement > tte os Tequns Rom the og Ply Gadik normally ctored J non volatile meng like FLASH vo he 4aak| proces schedoleng- poweres ploys 13 Real. te Capabilities *- wala ta be Peal Lyne! behave of anos. th aee cons deralion an \mpostant Analy ke real tive capalihes % tre oso pre H \ vend Mite ctondends og operating, system Tee fre Cope — es bey and mberwpl lelauy:- the terre} Sp OF PY ye las cette, nel WE mmo \ead to enberrupl- y ard toak synchronisation ys os kennel) daperdonk, 4g tommentcalon a ° ak vaplemention % " 1-6) modujorsahog suppot: most a provide bunch of features: At Annes tb roo os be nerestany Foe an embedded product foe ite Fonckoring- Rae ey veefol ib Me Os modularigahdn whee fn which fhe develo choose the ewental rrodoles ancl recompile Te 9 Ge pev Ca Be forcliontg- “Soppost_—by nfo and Commonication’. the or Kenedy povide ro Pox 2 bunch of comnmonsealtiin ghatk implementation and dawey Svprot interfaces aod sfioing Development Nang: cuppot:- Centon opookng 4 applicohons wolteo sypstern indode The aso Hime Vibranres required Pog Yennin fh languages ike qava and cH. Non feodtnel _cequvesnlt oe Cok The tole cost for dtolping ox bipog the es : ak in tam of. Commencial produc and cortom build needs for ToS qldesmton oni tee EdattOn of os. evaluakd be Development end_De -tools avetlabity, fools if a critical the avaslobtld of developrient ond deboggiry = decision Sy in fre selection oF a9 OS Por embedded daasgo. Fou Qiow.- Hoe emmy dow fe yse & cCommencsal RTS Hs sooThey Test jy Featore’ thet needy to) be conndad (tq The R108 celeelren. Aled Salis ov a communica] embedded Rios, aftev sales to The focen Np e-mail, on -oll covics » ote

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