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࣌ాཧ(.01FQBCP
*OD
ࣛࣇౡ3VCZձٞ
3VCZͷ044
ίʔυϦʔσΟϯά
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J048FCΞϓϦέʔγϣϯΤϯδχΞ
࣌ాཧ!PTBNUJNJ[FS
46;63*ࣄۀ෦ϓϩμΫτνʔϜ
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͡Ίʹ
wൃදࢿྉޙ΄ͲΠϯλʔωοτ্Ͱެ։͠·͢
wIUUQTTQFBLFSEFDLDPNPTBNUJNJ[FS
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ࠓ͢͜ͱ
wίʔυϦʔσΟϯάͱ
w3VCZ044ͷίʔυϦʔσΟϯάΛ࢝Ί͖͔͚ͨͬ
wίʔυϦʔσΟϯάͷΓํ
wͲͷΑ͏ʹಡΜ͔ͩ
wಡΜͰɺมΘͬͨ͜ͱ
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ίʔυϦʔσΟϯάͱ
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ཁ͢ΔʹɺίʔυΛಡΉ
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͚ͩͰͳ͍
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ಡΉ͜ͱʹΑͬͯɺ
ιϑτΣΞͷݟΛਂΊΔ
ίʔυϦʔσΟϯάͷత
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ಡΈ࢝Ί͖͔͚ͨͬ
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ಡΈ࢝Ί͖͔͚ͨͬ
w3BJMTΞϓϦΛۀͰ։ൃ͍ͯ͠Δ
wʮͲ͏ͬͯಈ͍͍ͯΔΜͩΖ͏ʁʯͱࢥ͏ॠ͕ؒଟ͍
w͡Ό͋ɺ3BJMTͰΘΕ͍ͯΔ044ΛಡΜͰΈΑ͏
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ίʔυϦʔσΟϯάͷΓํ
ࣗݾྲྀʂ
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ίʔυϦʔσΟϯάͷΓํ
wʮ͜͏͠ͳ͚Ε͍͚ͳ͍ʯͱ͍͏ͷͳ͍
wείʔϓΛܾΊΔ
wϝΠϯͷػೳΛɺ࢝Ί͔ΒऴΘΓ·Ͱ
wෳਓͰಡΉ
wυϥΠόʔΛҰਓܾΊͯɺϞϒϓϩܗࣜͰਐΊΔ
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ίʔυϦʔσΟϯάͷ༷ࢠ
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ίʔυϦʔσΟϯά
͓͢͢Ίπʔϧ
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(JU)VC
ͦΕͦ͏
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(JU)VC 8FCϒϥβ
Ͱɺ
݁ߏಡΈ͍͢
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+VNQUP%FpOJUJPO
ΫϦοΫͰϝιουͷఆٛ
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'JMFTFBSDIJO3FQPTJUPSZ
ϦϙδτϦͷͲ͜ͰɺUΩʔͰىಈ
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'JMFTFBSDIJO3FQPTJUPSZ
wಛʹ3VCZͱ૬ੑ͕ྑ͍
wSFRVJSFͰࢦఆ͢Δͷ͕ϑΝΠϧ໊ͳͷͰ
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ͲͷΑ͏ʹಡΜ͔ͩ
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࣮ࡍʹಡΜͩίʔυΛ
ަ͑ͯղઆ
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3BDL
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3BDL
w8FCΞϓϦέʔγϣϯͱ8FCαʔόʔΛܨ͛ΔΠϯλʔϑΣΠε
w3BDLΞϓϦέʔγϣϯͱͯ͠ͷϓϩτίϧΛຬͨ͢ΞϓϦΛαϙʔτ
w.JEEMFXBSFߏΛऔΔ
wconfig.ruΛ༻ҙ্ͨ͠ͰrackupίϚϯυͰىಈ
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ΤϯτϦϙΠϯτ͔ΒಡΉ
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SBDLVQ
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SBDLVQ
require "rack"
Rack::Server.start
bin/rackup
wͨͬͨߦ
wRack::Server.startΛ࣮ߦ͍ͯ͠Δ͚ͩ
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3VCZ044ʹ͋Γ͕ͪͳ͜ͱ
ߦ
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SBDLVQ
def self.start(options = nil)
new(options).start
end
lib/rack/server.rb
wͨͬͨߦ
w৽͍͠ServerΦϒδΣΫτΛੜ͠ɺServer#startΛ࣮ߦ
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3VCZ044ʹ͋Γ͕ͪͳ͜ͱ
ߦ
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SBDLVQ
def start
server.run wrapped_app, options, &blk
end
def server
@_server ||= Rack::Handler.get(options[:server])
@_server
end
lib/rack/server.rb
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3BDL)BOEMFS
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SBDLVQ
# *Handlers* connect web servers with Rack.
#
# Rack includes Handlers for Thin, WEBrick, FastCGI, CGI, SCGI
# and LiteSpeed.
#
# Handlers usually are activated by calling MyHandler.run(myapp).
# A second optional hash can be passed to include server-specific
# configuration.
module Handler
def self.get(server)
lib/rack/handler.rb
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SBDLVQ
# *Handlers* connect web servers with Rack.
#
# Rack includes Handlers for Thin, WEBrick, FastCGI, CGI, SCGI
# and LiteSpeed.
#
# Handlers usually are activated by calling MyHandler.run(myapp).
# A second optional hash can be passed to include server-specific
# configuration.
module Handler
def self.get(server)
lib/rack/handler.rb
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)BOEMFS
‑
3BDLͱ8FCαʔόʔΛܨ͛Δ
ίϝϯτʹΑΔͱ
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3VCZ044ʹ͋Γ͕ͪͳ͜ͱ
ҙ֎ͱίϝϯτʹཱͭ
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SBDLVQ
def self.get(server)
…
if klass = @handlers[server]
klass.split("::").inject(Object) { |o, x| o.const_get(x) }
lib/rack/handler.rb: L21-22
wͲ͏ΒɺHandler.getͰ͜ͷߦͷ݁Ռ͕ฦ͍ͬͯΔΒ͍͠
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@handlersʁ
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inject(Object) { |o, x|
o.const_get(x) }ʁ
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No content
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ࠔͬͨΒbinding.irb
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SBDLVQ
if klass = @handlers[server]
binding.irb
klass.split("::").inject(Object) { |o, x| o.const_get(x) }
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CJOEJOHJSC
irb(Rack::Handler):001:0> server
=> "puma"
irb(Rack::Handler):002:0> @handlers
=> {“cgi”=>”Rack::Handler::CGI”,
... ,
”puma”=>"Rack::Handler::Puma"}
irb(Rack::Handler):003:0> @handlers[server]
=> "Rack::Handler::Puma"
irb(Rack::Handler):004:0> klass.split("::")
=> ["Rack", "Handler", "Puma"]
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࣮ࡍʹಈ͔ͯ͠ΈΔͱɺ
Θ͔Γ͍͢
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͜͜Ͱ͕
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inject(Object) { |o, x|
o.const_get(x) }
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CJOEJOHJSC
irb(Rack::Handler):001:0> result = ["Rack", "Handler",
“Puma"].inject(Object) { |o, x| o.const_get(x) }
=> Rack::Handler::Puma
irb(Rack::Handler):002:0> result.class
=> Module
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inject(Object)…ʁ
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No content
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ࠔͬͨΒ
EPDTSVCZMBOHPSH
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ఆ
wఆͦͷఆ͕ఆٛ͞ΕͨΫϥεϞδϡʔϧఆٛͷத ϝιουຊ
ମωετͨ͠ΫϥεϞδϡʔϧఆٛதΛؚΈ·͢
ɺΫϥεΛܧঝ
͍ͯ͠ΔΫϥεɺϞδϡʔϧΛΠϯΫϧʔυ͍ͯ͠ΔΫϥε·ͨϞ
δϡʔϧ͔Βࢀর͢Δ͜ͱ͕Ͱ͖·͢ɻΫϥεఆٛͷ֎ τοϓϨϕ
ϧ
Ͱఆٛ͞Εͨఆ0CKFDUʹॴଐ͢Δ͜ͱʹͳΓ·͢ɻ
EPDTSVCZMBOHPSH
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ఆ
wఆͦͷఆ͕ఆٛ͞ΕͨΫϥεϞδϡʔϧఆٛͷத ϝιουຊ
ମωετͨ͠ΫϥεϞδϡʔϧఆٛதΛؚΈ·͢
ɺΫϥεΛܧঝ
͍ͯ͠ΔΫϥεɺϞδϡʔϧΛΠϯΫϧʔυ͍ͯ͠ΔΫϥε·ͨϞ
δϡʔϧ͔Βࢀর͢Δ͜ͱ͕Ͱ͖·͢ɻΫϥεఆٛͷ֎ τοϓϨϕ
ϧ
Ͱఆٛ͞Εͨఆ0CKFDUʹॴଐ͢Δ͜ͱʹͳΓ·͢ɻ
EPDTSVCZMBOHPSH
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ͳΔ΄Ͳʂ
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SBDLVQ
irb(main):001:0> require 'rack/handler/puma'
=> true
irb(main):002:0> result = Object.const_get('Rack')
=> Rack
irb(main):003:0> result.class
=> Module
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if klass = @handlers[server]
klass.split("::").inject(Object) { |o, x| o.const_get(x) }
αʔό໊ʢserverʣΛจࣈྻͰड͚औΓɺ
Ұக͢Δ3BDL)BOEMFSͷϞδϡʔϧΦϒδΣΫτΛฦ͢
lib/rack/handler.rb
SBDLVQ
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def start
server.run wrapped_app, options, &blk
end
# server => Rack Handler
lib/rack/server.rb
SBDLVQ
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SBDLVQ
‑
)BOEMFSܦ༝Ͱ
4FSWFSΛ্ཱͪ͛Δ
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3VCZͷ044ΛಡΉΑ͏ʹ
ͳͬͯɺมΘͬͨ͜ͱ
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ಡΉΑ͏ʹͳͬͯɺมΘͬͨ͜ͱ
wίʔυΛಡΉ͕࣌ؒ૿͑ͨ
w࣮ࡍʹಈ͔ͨ͠ΓυΩϡϝϯτΛಡΉश׳͕Ճͨ͠
w3BJMTΞϓϦέʔγϣϯͷཪଆ͕ཧղͰ͖ͨ
wʮͳͥʯΛҙ࣮͕ࣝͯ͠Ͱ͖ΔΑ͏ʹ
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·ͱΊ
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·ͱΊ
w3VCZ044ΛಡΉ͜ͱͰɺ3VCZͷ༷ʑͳ͜ͱΛΔ͖͔͚ͬʹͳΔ
w8FCϒϥβ͚ͩͰίʔυϦʔσΟϯά͍͢͠ڥ͕͋Δ
w࣮ࡍʹಈ͔ͨ͠ΓɺίϝϯτϦϑΝϨϯεΛಡΜͰΈΔͱྑ͍
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͓ΘΓʹ
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&OKPZ3VCZ044