Asynchronous Networking Patterns - mercari.go #3

Asynchronous Networking Patterns の話を聞いたので理解しようと頑張ってまとめました。

- オリジナルスライド: https://speakerdeck.com/filosottile/asynchronous-networking-at-gophercon-2018
- YouTube: https://www.youtube.com/watch?v=afSiVelXDTQ
- オリジナルコード: https://github.com/FiloSottile/mostly-harmless/tree/master/talks/asyncnet
- mercari.go #3 の発表に使ったコード: https://github.com/Code-Hex/network

Transcript

1. "TZODISPOPVT
   /FUXPSLJOH
   1BUUFSOT NFSDBSJHP
   
2. !DPEFIFY !$PEF)FY w .JDSPTFSWJDFT
   %FWFMPQNFOU
   w
   1FSM
   
   (P
3. "TZODISPOPVT
   /FUXPSLJOH
   1BUUFSOT
4. !DPEFIFY !$PEF)FY w 'JMJQQP
   7BMTPSEB
   w $SZQUPHPQIFS
   w (P
   UFBN
   w (PPHMF !'JMP4PUUJMF !'JMP4PUUJMF
5. w εϥΠυ
   w IUUQTTQFBLFSEFDLDPNpMPTPUUJMFBTZODISPOPVT OFUXPSLJOHBUHPQIFSDPO
   w εϐʔΧʔಈը
   w IUUQTXXXZPVUVCFDPNXBUDI WBG4J7FM9%52
   w ղઆϒϩά
   w IUUQTBCPVUTPVSDFHSBQIDPNHP HPQIFSDPOBTZODISPOPVTOFUXPSLJOH QBUUFSOT
   w جຊతʹ
   -JWF
   DPEJOH
   Ͱͨ͠
6. ͜ͷτʔΫʹ͍ͭͯ w "DDFQUJOH
   DPOOFDUJPOT
   w "
   TJNQMF
   QSPYZ
   w 1BSTJOH
   5-4
   w 4FSWF
   5-4
7. ඇಉظͷίωΫγϣϯύλʔϯ
8. ඇಉظωοτϫʔΩϯά w 
   ϦΫΤετ͝ͱʹ
   
   εϨουΛ্ཱͪ͛Δ
   w γϯϓϧͳϩδοΫ
   w ϦΫΤετ͕͋ΔͨͼʹεϨουΛ্ཱͪ͛Δ ͷͰ͔ͳΓͷϦιʔεΛඅ΍͢
   w *NH
   3FG
   IUUQTCJUMZ%K/IL
9. ඇಉظωοτϫʔΩϯά w Πϕϯτϧʔϓ OHJOY
   ΋͜ͷํࣜ
   w ΠϕϯτΛΠϕϯτΩϡʔʹಥͬࠐΜͰ͍͘
   w ֤ϫʔΧʔ͕Ωϡʔ͔ΒΠϕϯτΛͱͬͯ࢓ࣄΛ ࢓ࣄ͍ͯ͘͠
   w ϒϩοΫͨ͠ΒผͷΠϕϯτΛऔΓग़ͯ͠࢓ࣄΛ ͢Δ
   w ߟ͑Δ͜ͱ͕ͨ͘͞Μ͋Δ
   w *NH
   IUUQTCJUMZ0#HUTQ
10. ඇಉظωοτϫʔΩϯά w (P
    Ͱ͸
    (PSPVUJOF
    Ͱ
    
    ϦΫΤετ͝ͱʹ
 
    ͭͷ
    (PSPVUJOF
    Λ࡞੒͢Δ
    w (PSPVUJOF
    ͸ੜ੒ίετ͕௿͍
    w (P
    ͷεέδϡʔϥʔ͕ॲཧશମతʹϒϩοΫ͠ͳ ͍Α͏ʹ্ख͘εέδϡʔϧͯ͘͠ΕΔ
    w ͋Δ
    (PSPVUJOF
    ͕ϒϩοΫ͍ͯ͠Δؒɺଞͷ
    (PSPVUJOF
    ͷॲཧΛߦ͏
    w *NH
    IUUQTCJUMZ.1"&
11. "DDFQUJOH
    DPOOFDUJPOT 5$1
    Λ
    BDDFQU
    ͢ΔίωΫγϣϯαʔόʔͷ࣮૷
12. OFU
    QBDLBHF
13. OFU
    QBDLBHF w OFU$POO
    
    w ωοτϫʔΫίωΫγϣϯͷͨΊͷ
    JOUFSGBDF
    w ΫϥΠΞϯτ͸
    
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    w OFU-JTUFOFS
    w ωοτϫʔΫϦεφʔͷͨΊͷ
    JOUFSGBDF
    w "DDFQU
    ϝιουఏڙͯͯ͠ίωΫγϣϯΛडཧ ͢Δ͜ͱ͕Ͱ͖Δ
14. Α͘ݟΔίωΫγϣϯͷྫ
15. w (PSPVUJOF
    Ͱαʔϒ͢Δ͜ͱʹΑΓෳ਺ͷΫϥΠ Ξϯτͱͷ΍ΓऔΓΛߦ͏͜ͱ͕Ͱ͖Δ
    w αʔϒ಺ͰؾΛ͚ͭΔ͜ͱ
    w ॲཧͷ࠷ޙͰίωΫγϣϯͷ
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    w 5JNFPVU
    Λඞͣઃఆ͢Δ
    w ίωΫγϣϯͷுΓͬͺͳ͠Λ๷͙ TFSWF
    ෦෼ͰͰ͖Δ͜ͱ
16. "
    TJNQMF
    QSPYZ 4JNQMF
    ͳ
    QSPYZ
    ͷ࣮૷
17. QSPYZ
    ͱ͸ 
 IUUQTCJUMZY'WL-
18. w /HJOY
    ͱಉ͘͡Β͍ૣ͍Β͍͠
    w TQMJDF 
    ͱ͍͏γεςϜίʔϧΛ࢖ͬͯΔ
    w ΧʔωϧɺϢʔβʔۭؒͷؒͰੜ͡Δσʔλͷ ΍ΓऔΓʹίϐʔΛߦΘͳ͍
    w NBO
    IUUQTCJUMZ/SU)W'
    w 5$1$POO3FBE'SPN
    ͷதͰ࣮૷͞ΕͯΔ QSPYZ
    ͷྫ
19. 1BSTJOH
    5-4 UMT
    ͷ
    QBSTF
    Λߦ͏
20. w 5-4
    ͸
    FOEUPFOE
    ͰίωΫγϣϯͷ҉߸ԽΛఏ ڙ͢Δ
    w 4FSWFS
    /BNF
    *OEJDBUJPO
    4/*
    ͰͲΜͳΫϥΠ Ξϯτ͕઀ଓ͖ͯͯ͠Δ͔஌Δ͜ͱ͕Ͱ͖Δ
    w ࠓճ͸
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    ͷύʔεͷΈΛߦ͍ͬͯ·ͨ͠
    w *NH
    IUUQTCJUMZ16UJZQ 1BSTJOH
    5-4
21. 1BSTJOH
    5-4 w 4/*
    Λ஌ΔͨΊʹ
    5-41MBJOUFYU
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    w $POUFOU5ZQF
    ͸
 
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    w MFOHUI
    
    
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    ͸
    $MJFOU)FMMP
    
22. 1BSTJOH
    5-4
23. 1BSTJOH
    5-4 1BSTJOH
    5-4
24. ίϯςϯπ΋औಘ͍ͨ͠
25. w $POO
    ͔Β
    $MJFOU)FMMP
    ͷ෦෼͸औಘͨ͠
    w #V⒎FS
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    DPOO
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    w DPOO
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    w JP.VMUJ3FBEFS
    Λ࢖͏
    w *NH
    IUUQTCJUMZ16UJZQ 1BSTJOH
    5-4
26. 1BSTJOH
    5-4
27. 1BSTJOH
    5-4
28. 1BSTJOH
    5-4
29. 4FSWF
    5-4 QSPYZ
    ଆͰ
    5-4
    ͷ
    TFSWF
    Λߦ͏
30. UMT$POO
    ͸
 OFU$POO
    ͷϥούʔ
31. 4FSWF
    5-4
32. $ mkcert localhost (brew install mkcert && mkcert -install)
33. ͜ͷτʔΫͷ·ͱΊ w OFU
    QBDLBHF
    Λ࢖ͬͯ
    QSPYZ
    Λ࡞੒ͨ͠
    w /HJOY
    ͷΑ͏ͳෳࡶʹΠϕϯτϧʔϓΛ؅ཧͤͣɺ ಉ͡Α͏ͳύϑΥʔϚϯεΛग़ͤΔ
    QSPYZ
    Λ໿
    
    ߦͰॻ͘͜ͱ͕Ͱ͖ͨ
    w 3FG
    IUUQTCJUMZQQ(6