Iisokethi ze-unix zineendlela ezimbini. Oku kuthetha ukuba icala ngalinye linokwenza imisebenzi yokufunda nokubhala. Ngelixa, ii-FIFOs azikho icala: inombhali oyintanga kunye nomfundi ofundayo. Iisokethi ze-Unix zenza umphezulu omncinci kwaye unxibelelwano lukhawuleza, kunesokethi ye-IP yendawo.
Yintoni uqhagamshelwano lwesokethi ye-Unix?
I-Unix domain socket okanye i-IPC socket (i-inter-process communication socket) isiphelo sonxibelelwano lwedatha yokutshintshiselana kwedatha phakathi kweenkqubo eziqhutywa kwinkqubo efanayo yokusingatha. Iintlobo zesokethi ezisebenzayo kwi-domain ye-UNIX zezi: SOCK_STREAM (thelekisa ne-TCP) - yesokethi ejolise kumsinga.
Isebenza njani isokhethi yeLinux?
Iisokethi zizinto zokwakha ezivumela iinkqubo kwiimatshini ezahlukeneyo ukuba zinxibelelane ngenethiwekhi engaphantsi, enokuthi isetyenziswe kwakhona njengendlela yokunxibelelana nezinye iinkqubo kwi-host host efanayo (ngokusebenzisa i-Unix sockets). … Nanini na abathengi abatsha befika kumgca wesibini, inkqubo inokuyivumela ukuba ingene.
Ngaba iisokethi ze-UNIX zikhawuleza kune-TCP?
Iisokethi zesizinda se-Unix zihlala ziphindwe kabini ngokukhawuleza njenge-socket ye-TCP xa bobabini oontanga bekwi-host host efanayo. Iiprothokholi zommandla we-Unix aziyondlela yokwenyani yeprotocol, kodwa yindlela yokwenza umxhasi/unxibelelwano lomncedisi kumamkeli omnye usebenzisa i-API efanayo esetyenziswa kubaxhasi kunye nabancedisi kwiinginginya ezahlukeneyo.
Kutheni le nto i-UNIX ifuna isiseko sommandla?
Iziseko zommandla we-UNIX zenza unxibelelwano olusebenzayo phakathi kweenkqubo ezisebenza kwiprosesa efanayo ye-z/TPF. Iziseko zesizinda se-UNIX zixhasa zombini i-stream-oriented, i-TCP, kunye ne-datagram-oriented, i-UDP, i-protocol. Awunako ukuqalisa isiseko sommandla weUNIX kwiprothokholi ekrwada.
Yintoni i-Unix socket kwi-Docker?
Ikawusi sisokethi seUNIX esimanyelwa yiDocker daemon. Yeyona ndawo yokungena yeDocker API. Ikwanokuba yisokethi ye-TCP kodwa ngokungagqibekanga ngenxa yezizathu zokhuseleko i-Docker ayigqibekanga ukusebenzisa isokhethi ye-UNIX. Umxhasi weDocker cli usebenzisa le socket ukwenza imiyalelo yedocker ngokungagqibekanga. Ungazihoya ezi setingi ngokunjalo.
Ziziphi iifayile zesokhethi kwiLinux?
I-socket yifayile ekhethekileyo esetyenziselwa unxibelelwano phakathi kwenkqubo, eyenza unxibelelwano phakathi kweenkqubo ezimbini. Ukongeza ekuthumeleni idatha, iinkqubo zinokuthumela izichazi zefayile ngapha kwe-Unix yoqhagamshelwano lwesokethi ye-domain usebenzisa i-sendmsg () kunye ne-recvmsg () iifowuni zenkqubo.
Ngaba isiseko kunye nezibuko ziyafana?
Zombini iSocket kunye nePort ngamagama asetyenziswa kuLuhlu lwezoThutho. Izibuko lulwakhiwo olunengqiqo olwabelwe iinkqubo zothungelwano ukuze zibe nokuchongwa ngaphakathi kwesixokelelwano. Isokhethi yindibaniselwano yezibuko kunye nedilesi ye-IP. … Kwale nombolo yezibuko inokusetyenziswa kwikhompyutha eyahlukileyo esebenza kwisoftware enye.
Kutheni sisebenzisa inkqubo yesocket?
Iisokethi ziluncedo kuzo zombini ezizimeleyo kunye nezicelo zenethiwekhi. Iisokethi zikuvumela ukuba utshintshiselane ngolwazi phakathi kweenkqubo kumatshini omnye okanye kwinethiwekhi, usasaze umsebenzi kowona matshini usebenzayo, kwaye zivumela ngokulula ukufikelela kwidatha esembindini.
Yintoni isokethi ekrwada kwiLinux?
INKCAZELO phezulu. Iziseko ezikrwada zivumela iiprothokholi ezintsha ze-IPv4 ukuba ziphunyezwe kwindawo yabasebenzisi. Isokethi ekrwada ifumana okanye ithumela idathagram ekrwada ingaquki izihloko zomgangatho wekhonkco. Umaleko we-IPv4 uvelisa i-header ye-IP xa uthumela ipakethi ngaphandle kokuba i-IP_HDRINCL socket option yenziwe kwi-socket.
Zikhawuleza kangakanani iisokethi zesizinda se-Unix?
Kufunyenwe imiyalezo eyi-22067 ngemizuzwana eyi-1. Ukuphunyezwa kwe-socket ye-Unix ingathumela kwaye ifumane inani eliphindwe kabini lemiyalezo, ngexesha lesibini, xa kuthelekiswa ne-IP enye. Ngexesha lokubaleka okuninzi, lo mlinganiso uyangqinelana, uyahluka malunga ne-10% ngaphezulu okanye ngaphantsi kuzo zombini.
Ngaba iisokethi ze-UNIX zihamba kabini?
Iisokethi zi-bidirectional, zibonelela ngeendlela ezimbini zokuhamba kwedatha phakathi kweenkqubo ezinokuthi zibe nomzali omnye. … Imibhobho ibonelela ngokusebenza okufanayo. Nangona kunjalo, azikho unidirectional, kwaye zinokusetyenziswa kuphela phakathi kweenkqubo ezinomzali omnye.
Lukhawuleza kangakanani unxibelelwano lwesokhethi?
Kumatshini okhawuleza kakhulu unokufumana i-1 GB / s kumxhasi omnye. Ngabathengi abaninzi unokufumana i-8 GB/s. Ukuba unekhadi le-100 Mb ungalindela malunga ne-11 MB/s (bytes ngomzuzwana). Kwi-ethernet ye-10 ye-Gig-E ungafumana ukuya kuthi ga kwi-1 GB/s nangona kunjalo ungafumana isiqingatha salo ngaphandle kokuba inkqubo yakho icudiswe kakhulu.
Yintoni indlela ye-socket ye-Unix?
Iziseko zommandla we-UNIX zithiywe ngeendledlana ze-UNIX. Umzekelo, isokethi inokubizwa ngegama /tmp/foo. Iziseko zommandla we-UNIX zinxibelelana kuphela phakathi kweenkqubo kwinginginya enye. … Iintlobo zesokethi zichaza iimpawu zonxibelelwano ezibonakala kumsebenzisi. Iisokethi ze-intanethi zibonelela ngokufikelela kwiiprothokholi zothutho ze-TCP/IP.
Ngaba iSocket yi-IPC?
Iisokethi ze-IPC (iziseko zesizinda se-Unix) zenza unxibelelwano olusekwe kutshaneli kwiinkqubo kwisixhobo somzimba esifanayo (umsingathi), kanti iisokethi zenethiwekhi zenza olu hlobo lwe-IPC lweenkqubo ezinokusebenza kwiinginginya ezahlukeneyo, ngaloo ndlela zizisa uthungelwano ekudlaleni.
Uyenza njani ifayile yesokhethi?
Uyenza njani iServer
- Yenza i socket nge socket () inkqubo umnxeba.
- Bopha isiseko kwidilesi usebenzisa i bind() inkqubo umnxeba. …
- Mamela udibaniso nge-mamela () inkqubo umnxeba.
- Yamkela umdibaniso ngokwamkela () inkqubo yokufowuna. …
- Thumela kwaye ufumane idata usebenzisa i read () kwaye bhala () iminxeba inkqubo.