せっかくなのでYokohama.pmでGoとPerlの話

Yokohama.pm #12 スライド

Transcript

1. ͔ͤͬ͘ͳͷͰ
   :PLPIBNBQNͰ
   (Pͱ1FSMͷ࿩ 
   :PLPIBNBQN
   
   !BDJEMFNPO
2. ࣗݾ঺հ w ɹɹɹ!BDJEMFNPO
   w ໘ന๏ਓΧϠοΫ
 ιʔγϟϧήʔϜࣄۀ෦νʔϑΤϯδχΞ ࣗশ
   w $
   ೥
   
   +BWB
   ೥
   
   1FSM
   ೥
   
   (P
   ൒೥
 ͋ͱ0CKFDUJWF$$ ͱ͔
   w *46$0/
   ഊୀɺग़୊ɺ
   ഊୀ
   w Ίͬͨʹ֎෦Ͱొஃ͠·ͤΜ ͻ͖͜΋Γ 
 ࠓճ͸ձ৔͕ࣗࣾʹདྷͨͷͰొஃͨ͠
3. ຊ೔ͷ͓୊͸
4. (P͔Β1FSMΛ࢖͏
5. (P࣌୅͕ນΛ։͚ͨ w ฐࣾ͸ࠓ೥ͷ݄ʹ(PͰߦ͜͏એݴΛ͠·ͨ͠
 ޿ใͷӄ๳Ͱ֎෦ʹ΋ެ։͞Εͯ͠·ͬͨࣾ಺޲͚ͷ
 ϝʔϧ͸ࢲ͕ॻ͖·ͨ͠
   w ͱ͍͏͜ͱͰ͜͜൒೥(Pॻ͍ͯͨΜ͚ͩͲɺ
 1FSMͷ΄͏ָ͕ͩͳ͊ͱࢥ͏͜ͱ΋͠͹͠͹
   w ͱ͍͏͔*46$0/͸1FSMͰग़·ͨ͠
6. (P͔ΒผͷݴޠΛ࢖͏ w $$ ͔Β-VBΛ࢖͏Α͏ʹɺ(P͔ΒͳΜ͔
 ผͷݴޠΛ࢖ͬͯΈ͍ͨ
   w -VB͸εΫϦϓτݴޠ࠷଎ͩ͠ɺ(P͔Β
 -VBΛ࢖ͬͯΈΑ͏
7. ͦ͏͍͑͹
   ࠓ೔1FSMͷΠϕϯτͩͬͨ
8. (P͔ΒผͷݴޠΛ࢖͏ w $$ ͔Β-VBΛ࢖͏Α͏ʹɺ(P͔ΒͳΜ͔
 ผͷݴޠΛ࢖ͬͯΈ͍ͨ
   w 1FSM͸ࣗ෼͕ॻ͖׳Ε͍ͯΔݴޠͩ͠ɺ(P͔Β 1FSMΛ࢖ͬͯΈΑ͏
9. Ͱ΋Ͳ͏΍ͬͯ
10. FNCFEEFE
    1FSM
11. FNCFEEFE
    1FSMͱ͸ w QFSMEPD
    QFSMFNCFE
    w $ϓϩάϥϜ͔Β1FSMΠϯλϓϦλΛར༻͢Δ
 ͨΊͷ$ϥΠϒϥϦ
    w ࣮༻ྫ
 BQBDIF
    
    NPE@QFSM 
 OHJOY
    
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 OBHJPT
    
    FNCFEEFE
    1FSM
    /BHJPT
    ͳͲ
12. ࢓૊Έ w (P͸DHPΛ༻͍ͯ$ͷؔ਺Λݺ΂·͢
    w 1FSM͸FNCFEEFE
    1FSMΛ༻͍ͯ$͔Βݺ΂·͢
    w (P͔Β$Λܦ༝ͯ͠1FSMΛ࢖͑Δʂʂʂ
    ͸ͣ
13. ΍ͬͯΈ·͠ΐ͏
14. ·ͣ͸$͔Β1FSM w ΅͘FNCFEEFE
    1FSM࢖ͬͨ͜ͱͳ͍ΜͰͨ͠
 $͔Β1FSMΛݺͿͷΛ࠷ॳʹ΍Γ·͢
    w ΍Γ͔ͨ
    QFSMEPDʹ৐ͬͯΔͷͰίϐϖ͢Δ
15. ӳޠΑΊͳ͍ ͱ͍͏͋ͳͨʹ΋
16. QFSMEPDKQ͸ਆ ೔ຊޠͰಡΊ·͢
    Α͓͘ੈ࿩ʹͳ͍ͬͯ·͢
17. ࣮ࡍʹ$Ͱॻ͍ͯΈͨ w IUUQTHJTUHJUIVCDPNBDJEMFNPO ECEG
    w ୹ॖ63-
    IUUQHJUJPC2S-H
    w ࣮ߦํ๏͸HJTUͷίϝϯτΛࢀর͍ͩ͘͞
18. 5JQT w ຐ๏ͷίϚϯυ
 QFSM
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    F
    DDPQUT
    F
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    w HDDͰ࢖͏ΠϯΫϧʔυϥΠϒϥϦύεͷίϯ ύΠϧΦϓγϣϯΛग़ྗͯ͘͠ΕΔ DMBOH΋0,
    w QFSMEPDʹॻ͍ͯ͋Γ·͢
19. ͜ΕΛ;·͑ͯ
20. (PͰॻ͍ͯΈΔ w (Pʹ͸DHPͱ͍͏࢓૊Έ͕͋Δɻ
 (PͷϑΝΠϧͷ࠷ॳʹ$ͷίʔυΛίϝϯτͰ ॻ͘ͱΑ͠ͳʹऔΓࠐΜͰ͘ΕΔ package main /* #include <stdio.h> const char* MyWorldName() { return "Go and C"; } */ import "C" import "fmt" func main() { fmt.Println("Hello!", C.GoString(C.MyWorldName()), "World!") }
21. (PͰॻ͍ͯΈͨ w IUUQTHJTUHJUIVCDPNBDJEMFNPO FBBFEFDC
    w ୹ॖ63-
    IUUQHJUJPFNCQFSMHP
    w ࣮ߦํ๏͸HJTUͷίϝϯτΛࢀর͍ͩ͘͞
22. (PͰॻ͍ͯΈͨ $ݴޠ (Pݴޠ $ݴޠ
    ߦ (Pݴޠ
    ߦ
23. ͏ʔΜʜ
    ·͊͜͏͍͏΋ΜͩͶ
24. ͔ͤͬ͘ͳͷͰฒྻ࣮ߦ func main() { C.init_perl() // Perl準備 wg := sync.WaitGroup{} // goroutine待ち合わせの準備 // 並列列実⾏行行するルーチン test_func := func() { defer wg.Done() // Perlの⽂文を評価してスカラ値を取得 sval := C.Perl_eval_pv(C.CString("my $powawa = 3; $powawa *= 3"), 1) fmt.Printf("powawa = %v\n", C.Sv2Iv(sval)) } // 2並列列で実⾏行行して結果を待つ wg.Add(2) go test_func() go test_func() wg.Wait() C.term_perl() }
25. ࣮ߦ݁Ռ w ཧ૝
    w ݱ࣮ powawa = 9 powawa = 9 fatal error: unexpected signal during runtime execution [signal 0xb code=0x1 addr=0x262d2750 pc=0x40890bc] runtime stack: runtime: unexpected return pc for runtime.sigpanic called from 0x40890bc runtime.throw(0x426ca16) /Users/kawazoel/.homebrew/Cellar/go/1.3.1/libexec/src/pkg/runtime/ panic.c:520 +0x69 runtime: unexpected return pc for runtime.sigpanic called from 0x40890bc runtime.sigpanic() /Users/kawazoel/.homebrew/Cellar/go/1.3.1/libexec/src/pkg/runtime/ os_darwin.c:439 +0x3d
26. --%#ͰݪҼΛ֬ೝ w ຖճࢮ͵৔ॴ͕มΘΔ
    w ͭͷΠϯλϓϦλͰಉ࣮࣌ߦͨ͠ͷͰΠϯλϓϦλ಺ͷ
 εςʔτΛഁյͨͬ͠Ά͍งғؾΛײ͡Δ ͬͯͨ͠ (lldb) run Process 11751 launched: '/Users/kawazoel/letsgo_perl/golang/parallel' (x86_64) Process 11751 stopped * thread #1: tid = 0xb7a9af, 0x0000000004084fd2 parallel`Perl_op_clear(o=0x0000000005100350) + 498 at op.c:625, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=EXC_I386_GPFLT) frame #0: 0x0000000004084fd2 parallel`Perl_op_clear(o=0x0000000005100350) + 498 at op.c:625 622 allowed to raise and lower references during global destruction, 623 so any *valid* code that happens to do this during global 624 destruction might well trigger premature cleanup. */ -> 625 bool still_valid = gv && SvREFCNT(gv); 626 627 if (still_valid) 628 SvREFCNT_inc_simple_void(gv);
27. ࣍ͷҰख w ΠϯλϓϦλݸ͕μϝͳΒͨ͘͞Μ࡞Ε͹͍͍
    w ͦͷͨΊʹ͸1FSMΛϏϧυ͢Δͱ͖ͷ
 ΦϓγϣϯΛ͍͡Δඞཁ͕͋Δ QFSMEPDࢀর VTF
    UISFBET
    VTF
    JUISFBET
    
28. QFSMͰUISFBEΛ࢖͏࣌ͷ
    Πϝʔδ w ϞώΧϯ͕དྷΔ
 1FSMۦ͚ग़͠ͷࠒʹϞώΧϯʹʮ1FSMͰ

    εϨουͱ͔ߟ͑ͪΌμϝ͔ͩΒʯͬͯ

    ڴ͞ΕͨهԱ͕ોΓ·ͨ͠ 

29. ࣮ࡍʹ΍ͬͯΈΔ w ͍͖ͳΓίϯύΠϧ͕௨Βͳ͍
    w ௐ΂ͯΈΔͱɺ1FSMͷ$ؔ਺͸VTFUISFBET͢Δͱ͖ͱ
 ͠ͳ͍ͱ͖Ͱؔ਺ͷએݴ͕มΘΔ
    w VTFUISFBET͢Δͱ΄΅શ෦ୈҰҾ਺ʹ1FSM*OUFSQSFUFSͷ
 ϙΠϯλΛͱΔˠ౉͢ඞཁ͕
    w ࢓ํͳ͍ͷͰΤϥʔݟͳ͕Β͕Μ͹ͬͯ௚͢ In file included from ./parallel.go:4:0: ./parallel.go: In function 'init_perl': /usr/lib64/perl5/CORE/perl.h:189:16: error: 'my_perl' undeclared (first use in this function) # define aTHX my_perl
30. ࣮ߦͯ͠ΈΑ͏ w IUUQTHJTUHJUIVCDPNBDJEMFNPO GDGDCEE
    w ୹ॖ63-
    IUUQHJUJPFNCQFSMHPSPVUJOF
    w ࣮ߦํ๏͸HJTUͷίϝϯτΛࢀর͍ͩ͘͞
31. ϥΠϒϥϦԽ΁ͷಓ w Α͠΍Δͧ
    ͱࢥͬͯHJUIVCΛ୳ͨ͠Β͋ͬͨ
    w HJUIVCDPNCSBEpU[DBNQIFS
 $BNFM ϥΫμ
    
    (PQIFS (PͷϚείοτ
    
    DBNQIFS
    Β͍͠
    w (PPHMFͷਓͩ
    ͔ͯ༗໊ͳਓ΍ͳ͍͔
    w ιʔεͷίϝϯτʹ஫໨
 
    1BUDIFT
    XFMDPNF
    
    PS
    ZPV
    DBO
    UBLF
    PWFS
    NBJOUBJOFSTIJQ
    UPP
     
 ͩͦ͏Ͱ͢
32. ·ͱΊ w (P͔Β1FSMΛݺͿ͜ͱ͸ɺͰ͖·͢
    w HPSPVUJOFͰฒྻ࣮ߦ͍ͨ͠ͱ͖͸ɺ
 ΠϯλϓϦλΛͨ͘͞Μ༻ҙ͠·͠ΐ͏
    w ୭͔࢖͍Ͳ͜Ζ͕ݟ͔ͭͬͨΒڭ͍͑ͯͩ͘͞
33. ࣍ճ༧ࠂ
34. ࣍߸༧ࠂ w ࠓճ
    (P
    º
    1FSM
    Ͱͨ͠
    w ࣍ճ
    ߈Ίͱड͚Λٯʹͯ͠ɺ
    1FSM
    º
    (P (P FNCFEEFE
    1FSM 1FSM (P ͨͿΜͰ͖ΔΜ͡Όͳ͍Ͱ͔͢Ͷ͐ʙ
35. ͋Γ͕ͱ͏
    ͍͟͝·ͨ͠