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Coroutines͔Βඥղ͘
KtorͷΈ
Kotlin Fest 2019
08/24 (Sat.)
Recruit Lifestyle. Yuji Koyano
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ิ
w ͜ͷεϥΠυதͷ,UPSͷઆ໌
جຊతʹ4FSWFSTJEF,UPSͷΈΛରͱ͍ͯ͠·͢ɻ
ͱ͍͑ɺ$MJFOU4JEF,UPSʹڞ௨͢Δ༰ଟ͍Ͱ͢
w ͜ͷεϥΠυதͷʮίϧʔνϯΛ࡞ɾ։࢝͢Δʯ
ޙड़͢ΔTUBSU$PSPVUJOFϝιουͦͷྨࣅͷؔΛ
࣮ߦ͢Δɺͱ͍͏ҙຯͰ͍ͬͯ·͢ɻ
w $PSPVUJOF+7.࣮Λରͱ͍ͯ͠·͢
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ࣗݾհ
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@bandwagondagon ykoyano
Yuji Koyano
@bandwagondagon ykoyano
w 3FDSVJU-JGFTUZMFʹͯ
"OESPJEΤϯδχΞͱͯ͠
"JSϝΠτͱ͍͏ΞϓϦΛ։ൃத
w ࠷ۙɹɹ&OWPZ.PCJMFͰ༡ΜͰ͍·͢
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Έͳ͞Μɺ,PUMJOѪͰ͍ͯ·͔͢ʁ
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༷ʑͳѪͰํ
w "OESPJE
w J04 ,PUMJO/BUJWF
w +BWB4DSJQU
w 4FWFS4JEF,PUMJO
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w "OESPJE
w J04 ,PUMJO/BUJWF
w +BWB4DSJQU
w 4FWFS4JEF,PUMJO
༷ʑͳѪͰํ
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No content
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Ktorͱʁ
w +FU#SBJOTࣾͷ044
w 4FSWFSαΠυͱ$MJFOUαΠυͷͭͷϓϩδΣΫτ͕͋Δ
4FSWFSܰྔͳ8FC"QQMJDBUJPO'SBNFXPSLΛఏڙ
$MJFOU"TZODISPOPVT)UUQ$MJFOUΛఏڙ
w ,PUMJOݴޠͷػೳΛϑϧʹ׆༻͍ͯ͠Δͷ͕ಛ
FY$PSPVUJOFT
,PUMJO/BUJWF
.VMUJQMBUGPSN
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Ktorͱʁ
w +FU#SBJOTࣾͷ044
w 4FSWFSαΠυͱ$MJFOUαΠυͷͭͷϓϩδΣΫτ͕͋Δ
4FSWFSܰྔͳ8FC"QQMJDBUJPO'SBNFXPSLΛఏڙ
$MJFOU"TZODISPOPVT)UUQ$MJFOUΛఏڙ
w ,PUMJOݴޠͷػೳΛϑϧʹ׆༻͍ͯ͠Δͷ͕ಛ
FY$PSPVUJOFT
,PUMJO/BUJWF
.VMUJQMBUGPSN
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͜ͷηογϣϯͷత
w ,UPSͷઃܭಛɺࢥͳͲΛཧղ͢Δ͜ͱͰ
4FSWFS4*EF,PUMJOͱͯ͠ͷ,UPSͷਂ͍ཧղΛಘΔ
w ,UPS͕$PSPVUJOFTΛͬͯͲͷΑ͏ʹඇಉظ
ϓϩάϥϛϯάϞσϧΛ࣮ݱ͍ͯ͠Δͷ͔Λཧղ͢Δ͜ͱͰ
$PSPVUJOFTͷԠ༻తͳ͍ํΛͬͯΒ͏
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͜ͷηογϣϯͷత
w ,UPSͷઃܭ"1*
w $PSPVUJOFͷ
Ϩϕϧͳ"1*ͷհ
w 4FSWFS4JEF,UPS
w ࣮ફతͳ,UPSͷ5JQTӡ༻ࣄྫ
w $PSPVUJOFͷ
Ұൠతͳ͍ࣝํ
w $MJFOU4JEF,UPS
͢͜ͱ ͞ͳ͍͜ͱ
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$PSPVUJOFTͷϨϕϧ"1*
,UPSͱඇಉظॲཧύΠϓϥΠϯ
,UPSΛ$PSPVUJOFTͰඥղ͘
ϓϥάΠϯػߏͱύΠϓϥΠϯػߏ
ϚΠΫϩϑϨʔϜϫʔΫͷࢥ
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$PSPVUJOFTͷϨϕϧ"1*
,UPSͱඇಉظॲཧύΠϓϥΠϯ
,UPSΛ$PSPVUJOFTͰඥղ͘
ϓϥάΠϯػߏͱύΠϓϥΠϯػߏ
ϚΠΫϩϑϨʔϜϫʔΫͷࢥ
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w ,UPSͷઃܭࢥͷҰͭɻ༁͢ΔͱʮࣗઆΛ࣋ͨͳ͍ʯ
w ϑϨʔϜϫʔΫଆΞϓϦߏػೳΛۃྗڧ੍͠ͳ͍ͨΊ
ΞϓϦέʔγϣϯ։ൃऀͷҙࢥʹଟ͕͘ҕͶΒΕ͍ͯΔ
DG/PEFKTͷϑϨʔϜϫʔΫ&YQSFTT
Unopinionated
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w ϑϨʔϜϫʔΫͷҰൠతͳओཁػೳΛίΞίϯϙʔωϯτ͔Β
͢Δ͜ͱͰϚΠΫϩϑϨʔϜϫʔΫΛ࣮ݱ
DG3VCZPO3BJMTͱ4JOBUSB
4QSJOH'SBNFXPSL
w σϑΥϧτઃఆͰϩΪϯάػೳ
ςϯϓϨʔτΤϯδϯ+TPO.BQQFSͳͲಋೖ͞Ε͍ͯͳ͍
ബ͍ϑϨʔϜϫʔΫ
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ϚΠΫϩϑϨʔϜϫʔΫͷϝϦοτ
w ඞཁ࠷খݶͷߏͰ։ൃΛ։࢝Ͱ͖ΔͷͰ
ϓϩτλΠϐϯάͱͯ͠ͷΞϓϦέʔγϣϯ
ϚΠΫϩαʔϏεతʹ୯ҰͷΛ࣋ͭΞϓϦέʔγϣϯΛ
খ͘͞࡞Γ࢝ΊΔͷʹద͍ͯ͠Δ
w ҉తͳઃఆػೳ͕΄ͱΜͲͳ͍ͨΊ
ϑϨʔϜϫʔΫͱ࣮ͯ͠ߦ͞Ε͍ͯΔػೳΛ
ΞϓϦέʔγϣϯ։ൃऀ͕Ѳ͢Δͷ͕ൺֱత༰қ
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$PSPVUJOFTͷϨϕϧ"1*
,UPSͱඇಉظॲཧύΠϓϥΠϯ
,UPSΛ$PSPVUJOFTͰඥղ͘
ϓϥάΠϯػߏͱύΠϓϥΠϯػߏ
ϚΠΫϩϑϨʔϜϫʔΫͷࢥ
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FeatureʹΑΔϓϥάΠϯػߏ
w ೝূ%*ͳͲͷ࣮ફతͳػೳ͔ΒϧʔςΟϯά
ϩΪϯάͳͲͷجຊతͳػೳ·Ͱͷ΄ͱΜͲ͕
'FBUVSFͱ͍͏ϓϥάΠϯܗࣜͰຊମ͔Β
Γग़ͯ͠ఏڙ͞Ε͍ͯΔ
w 'FBUVSFΛΞϓϦέʔγϣϯʹJOTUBMM͢Δ͜ͱͰ
ࣗ༝ʹػೳΛՃͰ͖Δ
w ಠࣗʹ$VTUPN'FBUVSFΛ࣮͢Δ͜ͱՄೳ
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fun Application.main() {
routing {
get("/kotline_fest") {
call.respondText {
"Kotlin Fest 2019!”
}
}
}
}
Featureͷinstallྫ
w จࣈྻΛฦ͢࠷খͷΞϓϦέʔγϣϯͷίʔυ
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fun Application.main() {
install(DefaultHeaders)
install(CallLogging)
routing {
get("/kotline_fest") {
call.respondText {
"Kotlin Fest 2019!”
}
}
}
}
Featureͷinstallྫ
w JOTUBMMϝιουΛ༻ͯ͠ΞϓϦέʔγϣϯʹػೳՃ
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ύΠϓϥΠϯػߏ
w ,UPS͕ϦΫΤετΛड͚ͯॲཧΛߦ্͍ͬͯ͘Ͱ
ΞϓϦέʔγϣϯ։ൃऀ͕ॊೈʹ'FBUVSF3PVUJOHຖͷॱংΛ
ఆٛͰ͖ΔΑ͏ͳܭࢉύΠϓϥΠϯΛఏڙ
w ܭࢉύΠϓϥΠϯΛ֦ு͢ΔͨΊͷ"1*ఏڙ͞Ε͍ͯͯ
ಠࣗͷܭࢉύΠϓϥΠϯΛ࣮ͯ͠
$VTUPN'FBUVSFͱͯ͠JOTUBMM
࣮ߦ͢Δ͜ͱՄೳ
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1IBTF 1IBTF 1IBTF
1IBTF
{
setHeader()
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
ύΠϓϥΠϯػߏͷΠϝʔδ
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{
setHeader()
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
w ,UPSϦΫΤετΛड͚ΔͱίϧʔνϯΛ։࢝ͯ͠
ܭࢉύΠϓϥΠϯʹׂΓͯΒΕͨॲཧΛ࣮ߦ͍ͯ͘͠
1IBTF 1IBTF 1IBTF
1IBTF
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{
asyncFun(context)
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
w ,UPSϦΫΤετΛϋϯυϦϯά͢ΔͱίϧʔνϯΛ։࢝ͯ͠
ܭࢉ1JQFMJOFʹׂΓͯΒΕͨॲཧΛ࣮ߦ͍ͯ͘͠
1IBTF 1IBTF 1IBTF
1IBTF
override fun handle(ɾɾɾ) {
try {
ɾɾɾ
launch(dispatcher + JettyCallHandlerCoroutineName)
ɹɹɹɹɹɹɹɾɾɾ
try {
pipeline().execute(call)
} catch (cancelled: CancellationException) {
ɹɹɹɹɹɹɹɹɹɹɾɾɾ
}
}
} catch (ex: Throwable) {
ɹɹɹɹɹɹɹɾɾɾ
}
}
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{
asyncFun(context)
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
w ,UPSϦΫΤετΛϋϯυϦϯά͢ΔͱίϧʔνϯΛ։࢝ͯ͠
ܭࢉ1JQFMJOFʹׂΓͯΒΕͨॲཧΛ࣮ߦ͍ͯ͘͠
1IBTF 1IBTF 1IBTF
1IBTF
override fun handle(ɾɾɾ) {
try {
ɾɾɾ
launch(dispatcher + JettyCallHandlerCoroutineName)
ɹɹɹɹɹɹɹɾɾɾ
try {
pipeline().execute(call)
} catch (cancelled: CancellationException) {
ɹɹɹɹɹɹɹɹɹɹɾɾɾ
}
}
} catch (ex: Throwable) {
ɹɹɹɹɹɹɹɾɾɾ
}
}
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{
setHeader()
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
w ܭࢉύΠϓϥΠϯ1JQFMJOF1IBTFʹΑͬͯॲཧͷॱংΛఆٛ
1JQFMJOF1IBTFຖʹҙͷॲཧΛׂΓ͍ͯͯ͘͜ͱʹΑͬͯ
ύΠϓϥΠϯશମͷॲཧΛܾఆ͢Δ͜ͱ͕Ͱ͖Δ
1IBTF 1IBTF 1IBTF
1IBTF
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{
setHeader()
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
w 1JQFMJOF1IBTFطʹఆٛ͞Ε͍ͯΔͷ͋Ε
ࣗͰ৽͘͠ҙͷॱ൪ͰՃ͢Δ͜ͱͰ͖Δ
ҎԼ1JQFMJOF1IBTFͷྫ
4FUVQ .POJUPSJOH $BMM 4FOE
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4FUVQ $BMM 4FOE
.POJUPSJOH
w 1JQFMJOF1IBTFͷॲཧͷׂΓͯ
'FBUVSFͷJOTUBMM3PVUJOHͷఆٛʹΑͬͯߦΘΕΔ
%FGBVMU)FBEFS $BMM-PHHJOH
'FBUVSF
3PVUJOH
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4FUVQ $BMM 4FOE
.POJUPSJOH
%FGBVMU)FBEFS $BMM-PHHJOH
'FBUVSF
3PVUJOH
JOTUBMM
w 1JQFMJOF1IBTFͷॲཧͷׂΓͯ
'FBUVSFͷJOTUBMM3PVUJOHͷఆٛʹΑͬͯߦΘΕΔ
˞ͻͱͭͷϑΣΠζʹෳͷॲཧΛׂΓͯΔ͜ͱՄೳ
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4FUVQ $BMM 4FOE
.POJUPSJOH
{
setHeader()
}
{
getAuth(userID)
}
{
saveProfile(
userID, profile
)
}
w 1JQFMJOF1IBTFͷॲཧͷׂΓͯ
'FBUVSFͷJOTUBMM3PVUJOHͷఆٛʹΑͬͯߦΘΕΔ
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4FUVQ $BMM 4FOE
.POJUPSJOH
{
asyncFun(context)
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
"QQMJDBUJPO$BMM
w 1JQFMJOF1IBTFؒͰ"QQMJDBUJPO$BMMͱ͍͏
ΞϓϦέʔγϣϯϦΫΤετɾϨεϙϯεʹؔ͢ΔใΛ
อ࣋ͨ͠NVUBCMFͳΦϒδΣΫτΛڞ༗͍ͯ͠Δ
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4FUVQ $BMM 4FOE
.POJUPSJOH
{
setHeader()
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
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4FUVQ $BMM 4FOE
.POJUPSJOH
{
setHeader()
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
w 5ISFBEᶃͰϦΫΤετΛϋϯυϦϯάͯ͠
5ISFBEᶄ্ͰίϧʔνϯΛ։࢝
ͦͷ··5ISFBEᶄ্ͷίϧʔνϯͰ1JQFMJOFΛ࣮ߦ
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4FUVQ $BMM 4FOE
.POJUPSJOH
{
setHeader()
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
w 5ISFBEᶃͷεϨουϊϯϒϩοΩϯάঢ়ଶͳͷͰ
ଞͷϦΫΤετΛͭ͜ͱ͕Ͱ͖Δ
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4FUVQ $BMM 4FOE
.POJUPSJOH
ॲཧ͕։࢝
{
setHeader()
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
w 5ISFBEᶄ্ͷίϧʔνϯ͕ผͷίϧʔνϯΛಉεϨουͰ։࢝
ᶃ4FUVQϑΣΠζʹׂΓͯΒΕͨϥϜμࣜΛ࣮ߦ
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4FUVQ $BMM 4FOE
.POJUPSJOH
ॲཧ͕ऴྃ ॲཧ͕։࢝
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
{
getAuth(userID)
}
{
setHeader()
}
w ᶃ4FUVQϑΣΠζΛ࣮ߦ͢Δίϧʔνϯ͕ྃ
ᶄ.POJUPSJOHϑΣΠζͷॲཧΛ࣮ߦ͢ΔผͷίϧʔνϯΛ։࢝
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4FUVQ $BMM 4FOE
.POJUPSJOH
ॲཧ͕։࢝
{
setHeader()
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
ॲཧ͕ऴྃ ॲཧ͕ऴྃ
w ᶄ.POJUPSJOHϑΣΠζΛ࣮ߦ͢Δίϧʔνϯ͕ྃ
ᶅ$BMMϑΣΠζͰผͷॲཧΛ࣮ߦ͢ΔผͷίϧʔνϯΛ։࢝
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4FUVQ $BMM 4FOE
.POJUPSJOH
{
setHeader()
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
ॲཧ͕ऴྃ ॲཧ͕ऴྃ ॲཧ͕ऴྃ ॲཧ͕։࢝
w ᶅ$BMMϑΣΠζΛ࣮ߦ͢Δίϧʔνϯ͕ྃ
ᶆ4FOEϑΣΠζͰผͷॲཧΛ࣮ߦ͢ΔผͷίϧʔνϯΛ։࢝
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4FUVQ $BMM 4FOE
.POJUPSJOH
ॲཧ͕ऴྃ
ॲཧ͕ऴྃ ॲཧ͕ऴྃ ॲཧ͕ऴྃ
{
setHeader()
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
w 4FOEϑΣΠζͷॲཧ͕ྃͨ͠Β5ISFBEᶄ্ͷίϧʔνϯ͕
ऴྃ͠ɺݺͼग़͠ݩͷ5ISFBEᶃͷͬͯϋϯυϦϯά͕ऴྃ
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4FUVQ $BMM 4FOE
.POJUPSJOH
{
setHeader()
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
w 5ISFBEᶄ্Ͱ։࢝ͨ͠࠷ॳͷίϧʔνϯ͕
֤1JQFMJOF1IBTFຖʹίϧʔνϯΛੜ͍ͯ͠Δ
ͦΕΒશͯ5ISFBEᶄ্Ͱಈ࡞͢Δ
ίϧʔνϯ" ίϧʔνϯ# ίϧʔνϯ$ ίϧʔνϯ%
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4FUVQ $BMM 4FOE
.POJUPSJOH
{
setHeader()
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
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ϓϥάΠϯͱύΠϓϥΠϯػߏ
w ,UPSຊମ࠷ݶͷػೳ͔࣋ͨ͠ͳ͍ΘΓʹ
'FBUVSFΛͬͨϓϥάΠϯػߏʹΑͬͯ
Ϣʔβʔ͕ࣗ༝ʹػೳΛՃ͢Δ͜ͱ͕Ͱ͖Δ
w ,UPS͔Βఏڙ͞ΕΔܭࢉύΠϓϥΠϯػߏͱ"1*ʹΑͬͯ
ΞϓϦέʔγϣϯ։ൃऀ͕ݻ༗ͷϧʔςΟϯάॲཧ
ෳϧʔςΟϯάʹ·͕ͨͬͨڞ௨ॲཧΛॊೈͳॱ൪Ͱ
࣮ߦͤ͞Δ͜ͱ͕Մೳ
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$PSPVUJOFTͷϨϕϧ"1*
,UPSͱඇಉظॲཧύΠϓϥΠϯ
,UPSΛ$PSPVUJOFTͰඥղ͘
ϓϥάΠϯػߏͱύΠϓϥΠϯػߏ
ϚΠΫϩϑϨʔϜϫʔΫͷࢥ
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w ίϧʔνϯΛར༻ͯ͠ඇಉظϓϩάϥϛϯάϞσϧΛ
ѻ͍͍͢ܗͰΞϓϦέʔγϣϯ։ൃऀʹఏڙ
w ύΠϓϥΠϯͰࣗ༝ʹඇಉظॲཧΛ։࢝͢Δ͜ͱ͕Ͱ͖Δ
ඇಉظॲཧύΠϓϥΠϯ
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w TVTQFOEؔʹΑͬͯҰ࣌தஅ͢Δྫ
w MBVODIؔͰίϧʔνϯΛผεϨουͰ։࢝͢Δྫ
w BTZODؔͰίϧʔνϯΛผεϨουͰ։࢝͢Δྫ
w QSPDFFEϝιουͱBXBJUؔΛΈ߹ΘͤΔྫ
հ͢ΔඇಉظॲཧύΠϓϥΠϯͷ͍ํ
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4FUVQ $BMM 4FOE
.POJUPSJOH
{
setHeader()
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
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4FUVQ $BMM 4FOE
.POJUPSJOH
{
delay(1000L)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
{
getAuth(userID)
}
Ұ࣌தஅ͢Δؔ
1 : suspendؔʹΑͬͯҰ࣌தஅ͢Δྫ
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4FUVQ $BMM 4FOE
.POJUPSJOH
{
delay(1000L)
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
w 5ISFBEᶃͰϦΫΤετΛϋϯυϦϯάͯ͠
5ISFBEᶄ্ͰίϧʔνϯΛ։࢝
ͦͷ··5ISFBEᶄ্ͷίϧʔνϯͰ1JQFMJOFΛ࣮ߦ
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4FUVQ $BMM 4FOE
.POJUPSJOH
w 5ISFBEᶄ্Ͱίϧʔνϯ͕4FUVQϑΣΠζͷॲཧΛ࣮ߦ
ॲཧΛ࣮ߦ
{
delay(1000L)
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
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4FUVQ $BMM 4FOE
.POJUPSJOH
ॲཧ͕ऴྃ ॲཧΛ࣮ߦ
{
delay(1000L)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
{
getAuth(userID)
}
w 4FUVQϑΣΠζͷॲཧ͕ྃͨ͠Β࣍ʹ5ISFBEᶄ্Ͱ
ίϧʔνϯ͕.POJUPSJOHϑΣΠζͷॲཧΛ࣮ߦ
Ұ࣌தஅ͢Δؔ
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4FUVQ $BMM 4FOE
.POJUPSJOH
w ॲཧΛҰ࣌தஅͯ͠ɺॲཧΛ࠶։͢Δ·Ͱίϧʔνϯ্Ͱػ
5ISFBEᶄผͷϦΫΤετͷॲཧΛड͚͚ΒΕΔΑ͏ʹͳΔ
ॲཧΛҰ࣌தஅ
{
delay(1000L)
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
ॲཧ͕ऴྃ
Ұ࣌தஅ͢Δؔ
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4FUVQ $BMM 4FOE
.POJUPSJOH
ॲཧΛ࠶։
{
delay(1000L)
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
ॲཧ͕ऴྃ
w தஅॲཧ͕ྃͨ͠Β5ISFBEᶄͰ.POJUPSJOHϑΣΠζͷ
ΓͷॲཧΛ࣮ߦ ҧ͏5ISFBEͷՄೳੑ͕͋Δ͜ͱʹҙ
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4FUVQ $BMM 4FOE
.POJUPSJOH
ॲཧΛ࣮ߦ
{
delay(1000L)
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
ॲཧ͕ऴྃ
w .POJUPSJOHϑΣΠζͷॲཧ͕ྃͨ͠Β࣍ʹ5ISFBEᶄ্Ͱ
ίϧʔνϯ͕$BMMϑΣΠζͷॲཧΛ࣮ߦ
ॲཧ͕ऴྃ
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4FUVQ $BMM 4FOE
.POJUPSJOH
ॲཧΛ࣮ߦ
{
delay(1000L)
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
ॲཧ͕ऴྃ ॲཧ͕ऴྃ ॲཧ͕ऴྃ
w $BMMϑΣΠζͷॲཧ͕ྃͨ͠Β࣍ʹ5ISFBEᶄ্Ͱ
ίϧʔνϯ͕4FOEϑΣΠζͷॲཧΛ࣮ߦ
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4FUVQ $BMM 4FOE
.POJUPSJOH
ॲཧ͕ऴྃ
ॲཧ͕ऴྃ ॲཧ͕ऴྃ ॲཧ͕ऴྃ
{
delay(1000L)
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
w 4FOEϑΣΠζͷॲཧ͕ྃͨ͠Β5ISFBEᶄ্ͷίϧʔνϯ͕
ऴྃ͠ɺݺͼग़͠ݩͷ5ISFBEᶃͷͬͯϋϯυϦϯά͕ऴྃ
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w ॲཧ͕Ұ࣌தஅ͍ͯ͠ΔؒʹύΠϓϥΠϯ࣮ߦεϨουΛ
ผͷϦΫΤετͷͨΊʹར༻͢Δ͜ͱ͕Ͱ͖Δ
w ແҋʹεϨουΛੜͤͣɺޮతʹαʔόʔͷϦιʔεΛ
׆༻͢Δ͜ͱ͕Ͱ͖Δ
1 : suspendؔʹΑͬͯҰ࣌தஅ͢Δྫ
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4FUVQ $BMM 4FOE
.POJUPSJOH
{
launch {
delay(1000L)
}
logging(request)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
{
getAuth(userID)
}
ผεϨουͰ
ॲཧΛߦ͏ϥϜμ
2 : launchؔͷྫ
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4FUVQ $BMM 4FOE
.POJUPSJOH
{
launch {
delay(1000L)
}
logging(request)
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
w 5ISFBEᶃͰϦΫΤετΛϋϯυϦϯάͯ͠
5ISFBEᶄ্ͰίϧʔνϯΛ։࢝
ͦͷ··5ISFBEᶄ্ͷίϧʔνϯͰ1JQFMJOFΛ࣮ߦ
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4FUVQ $BMM 4FOE
.POJUPSJOH
w 5ISFBEᶄ্Ͱίϧʔνϯ͕4FUVQϑΣΠζͷॲཧΛ࣮ߦ
ॲཧΛ࣮ߦ
{
launch {
delay(1000L)
}
logging(request)
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
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4FUVQ $BMM 4FOE
.POJUPSJOH
ॲཧ͕ऴྃ ॲཧΛ࣮ߦ
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
{
getAuth(userID)
}
w 4FUVQϑΣΠζͷॲཧ͕ྃͨ͠Β࣍ʹ5ISFBEᶄ্Ͱ
ίϧʔνϯ͕.POJUPSJOHϑΣΠζͷॲཧΛ࣮ߦ
{
launch {
delay(1000L)
}
logging(request)
}
ผεϨουͰ
ॲཧΛߦ͏ϥϜμ
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4FUVQ $BMM 4FOE
.POJUPSJOH
w MBVODIؔʹΑͬͯ5ISFBEᶅ্ͰίϧʔνϯΛ։࢝
5ISFBEᶄͱ5ISFBEᶅͷͦΕͧΕͰॲཧΛ࣮ߦ
MBVODIؔΛ࣮ߦ
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
ॲཧ͕ऴྃ
{
launch {
delay(1000L)
}
logging(request)
}
ผεϨουͰ
ॲཧΛߦ͏ϥϜμ
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4FUVQ $BMM 4FOE
.POJUPSJOH
w MBVODIؔʹΑͬͯ5ISFBEᶅ্ͰίϧʔνϯΛ։࢝
5ISFBEᶄͱ5ISFBEᶅͷͦΕͧΕͰॲཧΛ࣮ߦ
{
launch {
delay(1000L)
}
logging(request)
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
ॲཧ͕ऴྃ ΓͷॲཧΛ࣮ߦ
5ISFBEᶅͰ࣮ߦத
ผεϨουͰ
ॲཧΛߦ͏ϥϜμ
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4FUVQ $BMM 4FOE
.POJUPSJOH
ॲཧΛ࣮ߦ
{
launch {
delay(1000L)
}
logging(request)
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
ॲཧ͕ऴྃ
w .POJUPSJOHϑΣΠζͷॲཧ͕ྃͨ͠Β࣍ʹ5ISFBEᶄ্Ͱ
ίϧʔνϯ͕$BMMϑΣΠζͷॲཧΛ࣮ߦ
ॲཧ͕ऴྃ
5ISFBEᶅͰ࣮ߦத
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4FUVQ $BMM 4FOE
.POJUPSJOH
ॲཧΛ࣮ߦ
{
launch {
delay(1000L)
}
logging(request)
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
ॲཧ͕ऴྃ ॲཧ͕ऴྃ ॲཧ͕ऴྃ
w $BMMϑΣΠζͷॲཧ͕ྃͨ͠Β࣍ʹ5ISFBEᶄ্Ͱ
ίϧʔνϯ͕4FOEϑΣΠζͷॲཧΛ࣮ߦ
5ISFBEᶅͰ࣮ߦத
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4FUVQ $BMM 4FOE
.POJUPSJOH
ॲཧ͕ऴྃ
ॲཧ͕ऴྃ ॲཧ͕ऴྃ ॲཧ͕ऴྃ
{
launch {
delay(1000L)
}
logging(request)
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
w 4FOEϑΣΠζͷॲཧ͕ྃͨ͠Β5ISFBEᶄ্ͷίϧʔνϯ
5ISFBEᶅͷίϧʔνϯ͕ऴྃ͢Δ·Ͱͭ
5ISFBEᶅͰ࣮ߦத
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4FUVQ $BMM 4FOE
.POJUPSJOH
ॲཧ͕ऴྃ
ॲཧ͕ऴྃ ॲཧ͕ऴྃ ॲཧ͕ऴྃ
{
launch {
delay(1000L)
}
logging(request)
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
5ISFBEᶅͰ
ॲཧ͕ऴྃ
w 5ISFBEᶅͷίϧʔνϯ͕ऴྃͨ͠Β5ISFBEᶄ্ͷίϧʔνϯ
͕ऴྃ͠ɺݺͼग़͠ݩͷ5ISFBEᶃͷͬͯϋϯυϦϯά͕ऴྃ
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2 : launchؔͷྫ
w MBVODIίϧʔνϯϏϧμʔΛύΠϓϥΠϯ্Ͱ࣮ߦ͢Δͱ
ผεϨουͰ৽ͨʹίϧʔνϯΛ։࢝ͯ͠
ݩͷύΠϓϥΠϯͷॲཧͱฏߦʹܭࢉΛߦ͏͜ͱ͕Ͱ͖Δ
w ͜ΕʹΑͬͯ*0͕͍ͪॲཧΛMBVODIίϧʔνϯϏϧμʔͰͷ
ίϧʔνϯͰ࣮ߦ͢Δ͜ͱʹΑͬͯ
ޮతʹฏߦॲཧΛߦ͏͜ͱ͕Ͱ͖Δ߹͕͋Δ
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4FUVQ $BMM 4FOE
.POJUPSJOH
{
async {
delay(1000L)
“Finish”
}.await()
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
{
getAuth(userID)
}
ผεϨουͰॲཧΛߦͬͯ
ྃΛͭϥϜμ
3 : asyncؔͷྫ
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4FUVQ $BMM 4FOE
.POJUPSJOH
{
async {
delay(1000L)
“Finish”
}.await()
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
w 5ISFBEᶃͰϦΫΤετΛϋϯυϦϯάͯ͠
5ISFBEᶄ্ͰίϧʔνϯΛ։࢝
ͦͷ··5ISFBEᶄ্ͷίϧʔνϯͰ1JQFMJOFΛ࣮ߦ
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4FUVQ $BMM 4FOE
.POJUPSJOH
w 5ISFBEᶄ্Ͱίϧʔνϯ͕4FUVQϑΣΠζͷॲཧΛ࣮ߦ
ॲཧΛ࣮ߦ
{
async {
delay(1000L)
“Finish”
}.await()
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
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4FUVQ $BMM 4FOE
.POJUPSJOH
ॲཧ͕ऴྃ ॲཧΛ࣮ߦ
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
{
getAuth(userID)
}
w 4FUVQϑΣΠζͷॲཧ͕ྃͨ͠Β࣍ʹ5ISFBEᶄ্Ͱ
ίϧʔνϯ͕.POJUPSJOHϑΣΠζͷॲཧΛ࣮ߦ
{
async {
delay(1000L)
“Finish”
}.await()
}
ผεϨουͰॲཧΛߦͬͯ
ྃΛͭϥϜμ
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4FUVQ $BMM 4FOE
.POJUPSJOH
w BTZODؔʹΑͬͯ5ISFBEᶅ্ͰίϧʔνϯΛ։࢝
5ISFBEᶄͱ5ISFBEᶅͷͦΕͧΕͰॲཧΛ࣮ߦ
BTZODؔΛ࣮ߦ
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
ॲཧ͕ऴྃ
{
async {
delay(1000L)
“Finish”
}.await()
}
ผεϨουͰॲཧΛߦͬͯ
ྃΛͭϥϜμ
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4FUVQ $BMM 4FOE
.POJUPSJOH
w BTZODؔʹΑͬͯ5ISFBEᶅ্ͰίϧʔνϯΛ։࢝
5ISFBEᶄͱ5ISFBEᶅͷͦΕͧΕͰॲཧΛ࣮ߦ
{
async {
delay(1000L)
“Finish”
}.await()
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
ॲཧ͕ऴྃ ΓͷॲཧΛ࣮ߦ
ผεϨουͰॲཧΛߦͬͯ
ྃΛͭϥϜμ
5ISFBEᶅͰ࣮ߦத
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4FUVQ $BMM 4FOE
.POJUPSJOH
{
async {
delay(1000L)
“Finish”
}.await()
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
ॲཧ͕ऴྃ
5ISFBEᶅ͕
ऴΘΔ·Ͱػ
5ISFBEᶅͰ࣮ߦத
ผεϨουͰॲཧΛߦͬͯ
ྃΛͭϥϜμ
w 5ISFBEᶅ্ͷίϧʔνϯͷྃΛػ͍ͯ͠ΔͷͰ
5ISFBEᶄͷ.POJUPSJOHϑΣΠζͷॲཧྃ͠ͳ͍··
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4FUVQ $BMM 4FOE
.POJUPSJOH
{
async {
delay(1000L)
“Finish”
}.await()
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
ॲཧ͕ऴྃ ΓͷॲཧΛ࣮ߦ
ผεϨουͰॲཧΛߦͬͯ
ྃΛͭϥϜμ
w 5ISFBEᶅ্ͷίϧʔνϯͷྃͷ݁ՌΛड͚ͯ
5ISFBEᶄͷ.POJUPSJOHϑΣΠζͷॲཧΛ࠶։
5ISFBEᶅͰॲཧ͕ऴྃ
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4FUVQ $BMM 4FOE
.POJUPSJOH
ॲཧΛ࣮ߦ
{
async {
delay(1000L)
“Finish”
}.await()
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
ॲཧ͕ऴྃ ॲཧ͕ऴྃ
w 5ISFBEᶄͷ.POJUPSJOHϑΣΠζͷॲཧ͕ऴྃͯ͠
ͬͱ$BMMϑΣΠζͷ࣮ߦΛ։࢝Ͱ͖Δ
5ISFBEᶅͰॲཧ͕ऴྃ
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4FUVQ $BMM 4FOE
.POJUPSJOH
ॲཧΛ࣮ߦ
{
asyncFun(context)
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
ॲཧ͕ऴྃ ॲཧ͕ऴྃ
w 5ISFBEᶄͷ.POJUPSJOHϑΣΠζͷॲཧ͕ऴྃͯ͠
ͬͱ$BMMϑΣΠζͷ࣮ߦΛ։࢝Ͱ͖Δ
͜ͷผεϨουͷॲཧͪͷ࣌ؒΛ
༗ޮʹ͏ͨΊͷ"1*͕
,UPS͔Βఏڙ͞Ε͍ͯ·͢ʂ
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4FUVQ $BMM 4FOE
.POJUPSJOH
{
val id = async {
delay(1000L)
“Finish”
}
proceed()
logging(id.await())
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
{
getAuth(userID)
}
QSPDFFE
Λ࣮ߦ͢ΔϥϜμ
4 : proceedϝιουͱasyncؔͷྫ
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Proceedϝιου
w ݱࡏ࣮ߦதͷϥϜμࣜΛҰ࣌தஅ͠৽͍͠ίϧʔνϯΛ
։࢝ͯ͠ޙஈͷύΠϓϥΠϯΛ࣮ߦ͢Δ"1*
w ޙஈͷύΠϓϥΠϯͷॲཧ͕ྃ͢ΔͱQSPDFFE
Λ࣮ߦ
ͨ͠ϥϜμࣜͷॲཧ͕࠶։͞ΕΔ
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4FUVQ $BMM 4FOE
.POJUPSJOH
{
val id = async {
delay(1000L)
“Finish”
}
proceed()
logging(id.await())
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
QSPDFFE
Λ࣮ߦ͢ΔϥϜμ
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4FUVQ $BMM 4FOE
.POJUPSJOH
{
val id = async {
delay(1000L)
“Finish”
}
proceed()
logging(id.await())
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
w 5ISFBEᶃͰϦΫΤετΛϋϯυϦϯάͯ͠
5ISFBEᶄ্ͰίϧʔνϯΛ։࢝
ͦͷ··5ISFBEᶄ্ͷίϧʔνϯͰ1JQFMJOFΛ࣮ߦ
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4FUVQ $BMM 4FOE
.POJUPSJOH
w 5ISFBEᶄ্Ͱίϧʔνϯ͕4FUVQϑΣΠζͷॲཧΛ࣮ߦ
ॲཧΛ࣮ߦ
{
val id = async {
delay(1000L)
“Finish”
}
proceed()
logging(id.await())
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
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4FUVQ $BMM 4FOE
.POJUPSJOH
ॲཧ͕ऴྃ ॲཧΛ࣮ߦ
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
{
getAuth(userID)
}
w 4FUVQϑΣΠζͷॲཧ͕ྃͨ͠Β࣍ʹ5ISFBEᶄ্Ͱ
ίϧʔνϯ͕.POJUPSJOHϑΣΠζͷॲཧΛ࣮ߦ
{
val id = async {
delay(1000L)
“Finish”
}
proceed()
logging(id.await())
}
QSPDFFE
Λ࣮ߦ͢ΔϥϜμ
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4FUVQ $BMM 4FOE
.POJUPSJOH
w BTZODؔʹΑͬͯ5ISFBEᶅ্ͰίϧʔνϯΛ։࢝
5ISFBEᶄͱ5ISFBEᶅͷͦΕͧΕͰॲཧΛ࣮ߦ
BTZODؔΛ࣮ߦ
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
ॲཧ͕ऴྃ
{
val id = async {
delay(1000L)
“Finish”
}
proceed()
logging(id.await())
}
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4FUVQ $BMM 4FOE
.POJUPSJOH
w BTZODؔʹΑͬͯ5ISFBEᶅ্ͰίϧʔνϯΛ։࢝
5ISFBEᶄͱ5ISFBEᶅͷͦΕͧΕͰॲཧΛ࣮ߦ
{
val id = async {
delay(1000L)
“Finish”
}
proceed()
logging(id.await())
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
ॲཧ͕ऴྃ ΓͷॲཧΛ࣮ߦ
5ISFBEᶅͰ࣮ߦத
QSPDFFE
Λ࣮ߦ͢ΔϥϜμ
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4FUVQ $BMM 4FOE
.POJUPSJOH
{
val id = async {
delay(1000L)
“Finish”
}
proceed()
logging(id.await())
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
ॲཧ͕ऴྃ
w 5ISFBEᶄ্ͰQSPDFFEΛ࣮ߦ͢Δͱ5ISFBEᶅ্ͷίϧʔνϯͷ
ྃΛͨͣʹ.POJUPSJOHϑΣΠζΛҰ࣌தஅͰ͖Δ
ॲཧΛҰ࣌தஅ
QSPDFFE
Λ࣮ߦ͢ΔϥϜμ
5ISFBEᶅͰ࣮ߦத
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4FUVQ $BMM 4FOE
.POJUPSJOH
ॲཧΛ࣮ߦ
{
val id = async {
delay(1000L)
“Finish”
}
proceed()
logging(id.await())
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
ॲཧ͕ऴྃ
w 5ISFBEᶄͷ.POJUPSJOHϑΣΠζΛҰ࣌தஅͯ͠
ͦͷ··5ISFBEᶄ্Ͱ$BMMϑΣΠζͷ࣮ߦΛ։࢝
ॲཧΛҰ࣌தஅ
5ISFBEᶅͰ࣮ߦத
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4FUVQ $BMM 4FOE
.POJUPSJOH
ॲཧΛ࣮ߦ
{
val id = async {
delay(1000L)
“Finish”
}
proceed()
logging(id.await())
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
ॲཧ͕ऴྃ ॲཧ͕ऴྃ
w $BMMϑΣΠζͷॲཧ͕ྃͨ͠Β࣍ʹ5ISFBEᶄ্Ͱ
ίϧʔνϯ͕4FOEϑΣΠζͷॲཧΛ࣮ߦ
ॲཧΛҰ࣌தஅ
5ISFBEᶅͰ࣮ߦத
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4FUVQ $BMM 4FOE
.POJUPSJOH
ॲཧΛ࣮ߦ
{
val id = async {
delay(1000L)
“Finish”
}
proceed()
logging(id.await())
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
ॲཧ͕ऴྃ ॲཧ͕ऴྃ
w 5ISFBEᶄ্Ͱ4FOEϑΣΠζͷॲཧΛ࣮ߦ͍ͯ͠Δؒʹ
5ISFBEᶅ্ͷίϧʔνϯͷॲཧ͕ྃ
ॲཧΛҰ࣌தஅ
5ISFBEᶅͰॲཧ͕ऴྃ
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4FUVQ $BMM 4FOE
.POJUPSJOH
ॲཧ͕ऴྃ ॲཧ͕ऴྃ ॲཧ͕ऴྃ
{
val id = async {
delay(1000L)
“Finish”
}
proceed()
logging(id.await())
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
w 4FOEϑΣΠζͷॲཧ͕ྃͨ͠Β5ISFBEᶄ্ͷίϧʔνϯ
.POJUPSJOHϑΣΠζͷॲཧΛ࠶։͢Δ
ॲཧΛ࠶։
5ISFBEᶅͰॲཧ͕ऴྃ
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4FUVQ $BMM 4FOE
.POJUPSJOH
ॲཧ͕ऴྃ ॲཧ͕ऴྃ ॲཧ͕ऴྃ
{
val id = async {
delay(1000L)
“Finish”
}
proceed()
logging(id.await())
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
w 4FOEϑΣΠζͷॲཧ͕ྃͨ͠Β5ISFBEᶄ্ͷίϧʔνϯ
.POJUPSJOHϑΣΠζͷॲཧΛ࠶։͢Δ
ΓͷॲཧΛ࣮ߦ
5ISFBEᶅͰॲཧ͕ऴྃ
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4FUVQ $BMM 4FOE
.POJUPSJOH
ॲཧ͕ऴྃ
ॲཧ͕ऴྃ ॲཧ͕ऴྃ ॲཧ͕ऴྃ
{
val id = async {
delay(1000L)
“Finish”
}
proceed()
logging(id.await())
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
w 5ISFBEᶄ্ͷίϧʔνϯ͕ऴྃͨ͠Β
ݺͼग़͠ݩͷ5ISFBEᶃͷͬͯϋϯυϦϯά͕ऴྃ
5ISFBEᶅͰॲཧ͕ऴྃ
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4 : proceedϝιουͱasyncؔͷྫ
w ,UPS͔Βఏڙ͞Ε͍ͯΔQSPDFFEϝιουΛ͏͜ͱͰ
ผεϨουͷίϧʔνϯ͔ΒͷฦΓΛ͍ͬͯΔؒʹ
ޙଓͷผͷύΠϓϥΠϯͷॲཧΛ࣮ߦ͢Δ͜ͱ͕Ͱ͖Δ
w ֤ύΠϓϥΠϯϑΣΠζͰͷϥϜμࣜΛ
ผͷ'FBUVSFͰಠཱʹఆٛ͠ͳ͕Β
ύΠϓϥΠϯϑΣΠζΛލ͍ͰඇಉظॲཧΛ࣮ߦ͢Δ͜ͱͰ
ΑΓޮతʹܭࢉΛߦ͏͜ͱ͕Ͱ͖Δ
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$PSPVUJOFTͷϨϕϧ"1*
,UPSͱඇಉظॲཧύΠϓϥΠϯ
,UPSΛ$PSPVUJOFTͰඥղ͘
ϓϥάΠϯػߏͱύΠϓϥΠϯػߏ
ϚΠΫϩϑϨʔϜϫʔΫͷࢥ
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CoroutinesͷϨϕϧͳૢ࡞
w $PSPVUJOFΛγϯϓϧʹ͏͚ͩͳΒҙࣝͤͣͱࠔΒͳ͍
͜ͱ͕ଟ͍͕ϥΠϒϥϦΛ࡞Δͱ͖ͳͲѻ͑Δͱཱͭ
w $POUJOVBUJPOTVTQFOEؔͷࣗಈมܗ
w TUBSU$PSPVUJOF
TUBSU$PSPVUJOF6OJOUFSDFQUFE0S3FUVSO
w TVTQFOE$PSPVUJOF6OJOUFSDFQUFE0S3FUVSO
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Continuation (ܧଓ)
w TVTQFOEؔͰதஅ͞Εͨίϧʔνϯͷঢ়ଶ
w தஅ͞Εͨ෦Ҏ߱ͷΓͷॲཧ ίʔϧόοΫ
Λද͢
w SFTVNF8JUIϝιουྃίʔϧόοΫͰ͋Γ
ίϧʔνϯͷྃ࣌ʹޭɾࣦഊͷ͍ͣΕ͔Λฦ͢
public interface Continuation {
public val context: CoroutineContext
public fun resumeWith(result: Result)
}
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suspendؔ
suspend fun susFuncA() {
delay(1000L)
}
val block: suspend () -> Unit = {}
w ؔͰଞͷTVTQFOEؔΛݺͼग़͢͜ͱͰ
࣮ߦεϨουΛϒϩοΫͤͣʹ
ίʔυ࣮ߦΛதஅ͢ΔՄೳੑͷ͋Δؔ
w TVTQFOEؔଞͷTVTQFOE͔ؔΒͷΈݺͼग़͢͜ͱ͕Մೳ
TVTQFOEؔϥϜμ
fun normalFunc() {
susFuncA(1000L)
}
௨ৗͷ͔ؔΒͷݺͼग़͠
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suspendؔ
suspend fun susFuncA() {
delay(1000L)
}
val block: suspend () -> Unit = {}
w ؔͰଞͷTVTQFOEؔΛݺͼग़͢͜ͱͰ
࣮ߦεϨουΛϒϩοΫͤͣʹ
ίʔυ࣮ߦΛதஅ͢ΔՄೳੑͷ͋Δؔ
w TVTQFOEؔଞͷTVTQFOE͔ؔΒͷΈݺͼग़͢͜ͱ͕Մೳ
TVTQFOEؔϥϜμ
fun normalFunc() {
susFuncA(1000L)
}
௨ৗͷ͔ؔΒͷݺͼग़͠
ͳͥTVTQFOEؔ
௨ৗͷ͔ؔΒݺͼग़͢͜ͱ͕ग़དྷͳ͍ͷ͔ʁ
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suspendؔ
suspend fun susFunc(
time: Long
) : String
TVTQFOEؔ
fun susFunc(
time: Long,
continuation: Continuation
) : Any?
ੜ͞ΕΔίʔυ ٙࣅίʔυ
w TVTQFOEम০ࢠίϯύΠϧ࣌ʹผͷؔʹม͞ΕΔ
˞࣮ࡍTVTQFOEؔͷίʔυγάχνϟ͕มߋ͞ΕͨΓ
ঢ়ଶΫϥε͕ੜ͞ΕͨΓ͍ͯ͠Δʹҙɻ
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suspend fun susFunc(
time: Long
) : String {
delay(time)
return "Kotlin Fest!"
}
TVTQFOEؔ
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suspend fun susFunc(
time: Long,
continuation: Continuation
) : Any? {
val call_back = when(continuation){
is ... -> continuation
else -> ...
}
when(call_back.lable){
1 -> {
call_back.lable = 2
return delay(time, call_back)
}
2 -> { return "Kotlin Fest!" }
}
}
suspend fun susFunc(
time: Long
) : String {
delay(time)
return "Kotlin Fest!"
}
TVTQFOEؔ ੜ͞ΕΔίʔυ ٙࣅίʔυ
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(suspend) fun susFunc(
time: Long,
continuation: Continuation
) : Any? {
val call_back = when(continuation){
is ... -> continuation
else -> ...
}
when(call_back.lable){
1 -> {
call_back.lable = 2
return delay(time, call_back)
}
2 -> { return "Kotlin Fest!" }
}
}
suspend fun susFunc(
time: Long
) : String {
delay(time)
return "Kotlin Fest!"
}
TVTQFOEؔ ੜ͞ΕΔίʔυ ٙࣅίʔυ
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(suspend) fun susFunc(
time: Long,
continuation: Continuation
) : Any? {
val call_back = when(continuation){
is ... -> continuation
else -> ...
}
when(call_back.lable){
1 -> {
call_back.lable = 2
return delay(time, call_back)
}
2 -> { return "Kotlin Fest!" }
}
}
suspend fun susFunc(
time: Long
) : String {
delay(time)
return "Kotlin Fest!"
}
TVTQFOEؔ ੜ͞ΕΔίʔυ ٙࣅίʔυ
ᶃҾʹ$POUJOVBUJPO͕Ճ͞Ε͍ͯΔ
ᶄฦΓ͕"OZ ܕʹͳ͍ͬͯΔ
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(suspend) fun susFunc(
time: Long,
continuation: Continuation
) : Any? {
val call_back = when(continuation){
is ... -> continuation
else -> ...
}
when(call_back.lable){
1 -> {
call_back.lable = 2
return delay(time, call_back)
}
2 -> { return "Kotlin Fest!" }
}
}
suspend fun susFunc(
time: Long
) : String {
delay(time)
return "Kotlin Fest!"
}
TVTQFOEؔ ੜ͞ΕΔίʔυ ٙࣅίʔυ
ᶅ෦Ͱݺͼग़͍ͯ͠ΔTVTQFOEؔͷҾʹ
$POUJOVBUJPO͕Ճ͞Ε͍ͯͯ
͕ࣗड͚औͬͨ$POUJOVBUJPOΛ͍ͯ͠Δ
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(suspend) fun susFunc(
time: Long,
continuation: Continuation
) : Any? {
val call_back = when(continuation){
is ... -> continuation
else -> ...
}
when(call_back.lable){
1 -> {
call_back.lable = 2
return delay(time, call_back)
}
2 -> { return "Kotlin Fest!" }
}
}
suspend fun susFunc(
time: Long
) : String {
delay(time)
return "Kotlin Fest!"
}
TVTQFOEؔ ੜ͞ΕΔίʔυ ٙࣅίʔυ
௨ৗͷ͔ؔΒTVTQFOEؔΛݺͼग़ͦ͏ͱͯ͠
$POUJOVBUJPOΛҾͱͯ͢͜͠ͱ͕Ͱ͖ͳ͍
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(suspend) fun susFunc(
time: Long,
continuation: Continuation
) : Any? {
val call_back = when(continuation){
is ... -> continuation
else -> ...
}
when(call_back.lable){
1 -> {
call_back.lable = 2
return delay(time, call_back)
}
2 -> { return "Kotlin Fest!" }
}
}
suspend fun susFunc(
time: Long
) : String {
delay(time)
return "Kotlin Fest!"
}
TVTQFOEؔ ੜ͞ΕΔίʔυ ٙࣅίʔυ
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(suspend) fun susFunc(
time: Long,
continuation: Continuation
) : Any? {
val call_back = when(continuation){
is ... -> continuation
else -> ...
}
when(call_back.lable){
1 -> {
call_back.lable = 2
return delay(time, call_back)
}
2 -> { return "Kotlin Fest!" }
}
}
suspend fun susFunc(
time: Long
) : String {
delay(time)
return "Kotlin Fest!"
}
TVTQFOEؔ ੜ͞ΕΔίʔυ ٙࣅίʔυ
ͰͲ͏ͬͯ࠷ॳͷTVTQFOEؔΛ
ී௨ͷ͔ؔΒݺͼग़͢ʁ
ίϧʔνϯΛ։࢝͢Δʁ
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startCoroutine
w ίϧʔνϯΛ࡞ͯ͠ݱࡏͷεϨουͰ
ϨγʔόʔͰ͋ΔTVTQFOEϥϜμΛ࣮ߦ͢Δ
w MBVODI
BTZODͳͲͷίϧʔνϯϏϧμʔ
෦తʹݺͼग़ͯ͠ίϧʔνϯΛ࡞͍ͯ͠Δ
public fun (suspend () -> T).startCoroutine(
completion: kotlin.coroutines.Continuation
): kotlin.Unit { /* compiled code */ }
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val continuation = object : Continuation {
override val context:
CoroutineContext = EmptyCoroutineContext
override fun resumeWith(result: Result){ ɾɾɾ }
}
suspend { delay(1000L) }.startCoroutine(continuation)
w TVTQFOEϥϜμͷ֦ுؔͱͯ͠ఆٛ͞Ε͍ͯͯ
TVTQFOEؔҎ֎ͷ௨ৗͷ͔ؔΒݺͼग़͕͠Մೳ
w $POUJOVBUJPOࣗલͰ༻ҙ͢Δ͔
طʹ։͍࢝ͯ͠Δίϧʔνϯ͔Βऔಘ͢Δ
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val continuation = object : Continuation {
override val context:
CoroutineContext = EmptyCoroutineContext
override fun resumeWith(result: Result){ ɾɾɾ }
}
suspend { delay(1000L) }.startCoroutine(continuation)
w TVTQFOEϥϜμͷ֦ுؔͱͯ͠ఆٛ͞Ε͍ͯͯ
TVTQFOEؔҎ֎ͷ௨ৗͷ͔ؔΒݺͼग़͕͠Մೳ
w $POUJOVBUJPOࣗલͰ༻ҙ͢Δ͔
طʹ։͍࢝ͯ͠Δίϧʔνϯ͔Βऔಘ͢Δ
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inline fun (suspend () -> T).startCoroutineUninterceptedOrReturn(
completion: Continuation
): Any? = (this as Function1, Any?>).invoke(completion)
public fun (suspend () -> T).startCoroutine(
completion: kotlin.coroutines.Continuation
): kotlin.Unit { /* compiled code */ }
startCoroutineUninterceptedOrReturn
w TUBSU$PSPVUJOFͱҧ͍ɺฦΓΛड͚औΔ
w ࣮ߦͨ͠TVTQFOE͕ؔ෦ͷதஅͰதஅ͞ΕΔͱ
$03065*/&@4641&/%&%ϚʔΧʔΛฦ͢
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inline fun (suspend () -> T).startCoroutineUninterceptedOrReturn(
completion: Continuation
): Any? = (this as Function1, Any?>).invoke(completion)
public fun (suspend () -> T).startCoroutine(
completion: kotlin.coroutines.Continuation
): kotlin.Unit { /* compiled code */ }
startCoroutineUninterceptedOrReturn
w TUBSU$PSPVUJOFͱҧ͍ɺฦΓΛड͚औΔ
w ࣮ߦͨ͠TVTQFOE͕ؔ෦ͷதஅͰதஅ͞ΕΔͱ
$03065*/&@4641&/%&%ϚʔΧʔΛฦ͢
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inline fun (suspend () -> T).startCoroutineUninterceptedOrReturn(
completion: Continuation
): Any? = (this as Function1, Any?>).invoke(completion)
internal enum class CoroutineSingletons {
COROUTINE_SUSPENDED, UNDECIDED, RESUMED
}
startCoroutineUninterceptedOrReturn
w TUBSU$PSPVUJOFͱҧ͍ɺฦΓΛड͚औΔ
w ࣮ߦͨ͠TVTQFOE͕ؔ෦ͷதஅͰதஅ͞ΕΔͱ
$03065*/&@4641&/%&%ϚʔΧʔΛฦ͢
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inline fun (suspend () -> T).startCoroutineUninterceptedOrReturn(
completion: Continuation
): kotlin.Any? { /* compiled code */ }
internal enum class CoroutineSingletons {
COROUTINE_SUSPENDED, UNDECIDED, RESUMED
}
startCoroutineUninterceptedOrReturn
w TUBSU$PSPVUJOFͱҧ͍ɺฦΓΛड͚औΔ
w ࣮ߦͨ͠TVTQFOE͕ؔ෦ͷதஅͰதஅ͞ΕΔͱ
$03065*/&@4641&/%&%ϚʔΧʔΛฦ͢
ίϧʔνϯʹ͞Ε͍ͯΔ
ContinuationͲ͏ͬͯऔಘͰ͖Δʁ
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suspendCoroutineUninterceptedOrReturn
w ίϧʔνϯͰݺͿ͜ͱͰίϧʔνϯ͕தஅͨ͠Γͷঢ়ଶΛ
$POUJOVBUJPOΠϯελϯεͱͯ͠औಘͰ͖Δ"1*
w ϥϜμࣜͰ$POUJOVBUJPOΠϯελϯεΛࢀর͠
ίϧʔνϯͷதஅɾྃͱ͍ͬͨঢ়ଶΛ੍ޚͰ͖Δ
suspend inline fun suspendCoroutineUninterceptedOrReturn(
crossinline block: (Continuation) -> Any?
): T
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w ίϧʔνϯΛதஅঢ়ଶͱͯ͠ҡ࣋͢Δ߹
$03065*/&@4641&/%&%ϚʔΧʔΛฦ͢
w ίϧʔνϯΛྃ͢Δ߹
݁ՌΛSFTVNF8JUIϝιουʹ࣮ͯ͠ߦ
suspend inline fun suspendCoroutineUninterceptedOrReturn(
crossinline block: (Continuation) -> Any?
): T
suspendCoroutineUninterceptedOrReturn
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$PSPVUJOFTͷϨϕϧ"1*
,UPSͱඇಉظॲཧύΠϓϥΠϯ
,UPSΛ$PSPVUJOFTͰඥղ͘
ϓϥάΠϯػߏͱύΠϓϥΠϯػߏ
ϚΠΫϩϑϨʔϜϫʔΫͷࢥ
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KtorΛCoroutinesͰඥղ͘
w ύϑΥʔϚϯεΛߟྀͨ͠$PSPVUJOFͷੜ
w QSPDFFEؔͷॲཧΛͲ͏࣮ͬͯݱ͍ͯ͠Δͷ͔
w $PSPVUJOFΛ։࢝͢Δͱ͖ʹ$POUJOVBUJPO͚ͩͰͳ͘
ҙͷΦϒδΣΫτҾ͖͢ํ๏
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ύϑΥʔϚϯεΛߟྀͨ͠Coroutineͷੜ
4FUVQ $BMM 4FOE
.POJUPSJOH
{
delay(1000L)
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
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4FUVQ $BMM 4FOE
.POJUPSJOH
{
delay(1000L)
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
w 5ISFBEᶄ্Ͱ։࢝ͨ͠࠷ॳͷίϧʔνϯ͕
֤1JQFMJOF1IBTFຖʹίϧʔνϯΛੜ͍ͯ͠Δ
ͦΕΒશͯ5ISFBEᶄ্Ͱಈ࡞͢Δ
ίϧʔνϯ" ίϧʔνϯ# ίϧʔνϯ$ ίϧʔνϯ%
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4FUVQ $BMM 4FOE
.POJUPSJOH
{
asyncFun(context)
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
w 5ISFBEᶄ্Ͱ։࢝ͨ͠࠷ॳͷίϧʔνϯ͕
֤1JQFMJOF1IBTFຖʹίϧʔνϯΛੜ͍ͯ͠Δ
ͦΕΒશͯ5ISFBEᶄ্Ͱಈ࡞͢Δ
ίϧʔνϯ" ίϧʔνϯ# ίϧʔνϯ$ ίϧʔνϯ%
1IBTFຖʹίϧʔνϯΛ
ੜ͢Δ͜ͱʹΑͬͯ
1IBTFຖʹதஅॲཧΩϟϯηϧΛ
੍ޚ͢Δ͜ͱ͕Ͱ͖Δ
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4FUVQ $BMM 4FOE
.POJUPSJOH
{
asyncFun(context)
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
w 5ISFBEᶄ্Ͱ։࢝ͨ͠࠷ॳͷίϧʔνϯ͕
֤1JQFMJOF1IBTFຖʹίϧʔνϯΛੜ͢Δ͍ͯ͠Δ
ͦΕΒશͯ5ISFBEᶄ্Ͱಈ࡞͢Δ
ίϧʔνϯ" ίϧʔνϯ# ίϧʔνϯ$ ίϧʔνϯ%
ܰྔͱ͍͑
ϦΫΤετͷʹେྔʹ
ίϧʔνϯΛੜ͍ͯͯ͠
ύϑΥʔϚϯεʹӨڹͳ͍ͷʁ
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4FUVQ $BMM 4FOE
.POJUPSJOH
{
delay(1000L)
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
w 5ISFBEᶄ্Ͱ։࢝ͨ͠࠷ॳͷίϧʔνϯ͕
֤1JQFMJOF1IBTFຖʹίϧʔνϯΛੜ͍ͯ͠Δ
ͦΕΒશͯ5ISFBEᶄ্Ͱಈ࡞͢Δ
ίϧʔνϯ" ίϧʔνϯ# ίϧʔνϯ$ ίϧʔνϯ%
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4FUVQ $BMM 4FOE
.POJUPSJOH
{
asyncFun(context)
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
w ࠷ॳͷίϧʔνϯ֤1IBTFίϧʔνϯΛ࡞͢Δࡍʹ
৽ͨʹ$POUJOVBUJPOΛ࡞Βͣɺࣗͷ$POUJOVBUJPOΛ
Ҿ͖͍ͯ͠Δ
ίϧʔνϯ" ίϧʔνϯ# ίϧʔνϯ$ ίϧʔνϯ%
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4FUVQ $BMM 4FOE
.POJUPSJOH
{
asyncFun(context)
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
ίϧʔνϯ" ίϧʔνϯ# ίϧʔνϯ$ ίϧʔνϯ%
suspend inline fun suspendCoroutineUninterceptedOrReturn(
crossinline block: (Continuation) -> Any?
): T
w TVTQFOE$PSPVUJOF6OJOUFSDFQUFE0S3FUVSOؔΛ͏ͱ
࣮ߦதͷίϧʔνϯͷ$POUJOVBUJPOΛऔΓग़ͯ͠
ҾͷϥϜμࣜͷதͰѻ͏͜ͱ͕Ͱ͖Δ
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4FUVQ $BMM 4FOE
.POJUPSJOH
{
asyncFun(context)
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
w TVTQFOE$PSPVUJOF6OJOUFSDFQUFE0S3FUVSOؔΛ͏ͱ
࣮ߦதͷίϧʔνϯͷ$POUJOVBUJPOΛऔΓग़ͯ͠
ҾͷϥϜμࣜͷதͰѻ͏͜ͱ͕Ͱ͖Δ
ίϧʔνϯ" ίϧʔνϯ# ίϧʔνϯ$ ίϧʔνϯ%
suspend inline fun suspendCoroutineUninterceptedOrReturn(
crossinline block: (Continuation) -> Any?
): T
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4FUVQ $BMM 4FOE
.POJUPSJOH
{
asyncFun(context)
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
w TUBSU$PSPVUJOF6OJOUFSDFQUFE0S3FUVSOؔͷҾʹ
$POUJOVBUJPOΛ͢ͱ৽ͨʹ$POUJOVBUJPOΛ
࡞ͤͣʹίϧʔνϯΛ։࢝Ͱ͖Δ
ίϧʔνϯ" ίϧʔνϯ# ίϧʔνϯ$ ίϧʔνϯ%
inline fun (suspend () -> T).startCoroutineUninterceptedOrReturn(
completion: Continuation
): kotlin.Any?
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4FUVQ $BMM 4FOE
.POJUPSJOH
{
asyncFun(context)
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
ίϧʔνϯ" ίϧʔνϯ# ίϧʔνϯ$ ίϧʔνϯ%
inline fun (suspend () -> T).startCoroutineUninterceptedOrReturn(
completion: Continuation
): kotlin.Any?
w TUBSU$PSPVUJOF6OJOUFSDFQUFE0S3FUVSOؔͷҾʹ
$POUJOVBUJPOΛ͢ͱ৽ͨʹ$POUJOVBUJPOΛ
࡞ͤͣʹίϧʔνϯΛ։࢝Ͱ͖Δ
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suspendCoroutineUninterceptedOrReturn { continuation ->
do {
val rc = PhaseʹׂΓͯΒΕͨϥϜμࣜ.
startCoroutineUninterceptedOrReturn(ɾɾɾ)
ɾɾɾ
} while (true)
COROUTINE_SUSPENDED
}
w TVTQFOE$PSPVUJOF6OJOUFSDFQUFE0S3FUVSOͱ
TUBSU$PSPVUJOF6OJOUFSDFQUFE0S3FUVSOΛΈ߹ΘͤΔ͜ͱͰ
$POUJOVBUJPOΛڞ༗͠ͳ͕ΒίϧʔνϯΛ࡞͍ͯ͠Δ
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4FUVQ $BMM 4FOE
.POJUPSJOH
{
delay(1000L)
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
w $POUJOVBUJPOΛڞ༗ͯ͠ίϧʔνϯͷੜίετΛ͑Δ͜ͱͰ
ύΠϓϥΠϯͷ࣮ߦͷύϑΥʔϚϯεΛ্͍ͯ͠Δ
ίϧʔνϯ" ίϧʔνϯ# ίϧʔνϯ$ ίϧʔνϯ%
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4FUVQ $BMM 4FOE
.POJUPSJOH
{
asyncFun(context)
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
w $POUJOVBUJPOΛڞ༗ͯ͠ίϧʔνϯͷੜίετΛ͑Δ͜ͱͰ
ύΠϓϥΠϯͷ࣮ߦͷύϑΥʔϚϯεΛ্͍ͯ͠Δ
ίϧʔνϯ" ίϧʔνϯ# ίϧʔνϯ$ ίϧʔνϯ%
TVTQFOE$PSPVUJOF6OJOUFSDFQUFE0S3FUVSOͱ
TUBSU$PSPVUJOF6OJOUFSDFQUFE0S3FUVSOΛ
Έ߹ΘͤͰίϧʔνϯͷੜίετΛ͑Δํ๏
(FOFSBUPSTͷZJFMEؔͷ෦࣮ͰΘΕ͍ͯΔ
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proceedؔͷ࣮
4FUVQ $BMM 4FOE
.POJUPSJOH
{
val id = async {
delay(1000L)
“Finish”
}
proceed()
logging(id.await())
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
QSPDFFE
Λ࣮ߦ͢ΔϥϜμ
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4FUVQ $BMM 4FOE
.POJUPSJOH
ॲཧΛ࣮ߦ
{
val id = async {
delay(1000L)
“Finish”
}
proceed()
logging(id.await())
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
ॲཧ͕ऴྃ
w QSPDFFEϝιουΛ࣮ߦ͢Δͱ֘ϑΣΠζͷॲཧΛதஅͯ͠
ޙଓͷύΠϓϥΠϯͷॲཧΛ࣮ߦͰ͖Δ
ॲཧΛҰ࣌தஅ
5ISFBEᶅͰ࣮ߦத
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suspendCoroutineUninterceptedOrReturn { continuation ->
do {
ɾɾɾ
val rc = PhaseʹׂΓͯΒΕͨϥϜμࣜ.
startCoroutineUninterceptedOrReturn(ɾɾɾ)
ɾɾɾ
} while (true)
COROUTINE_SUSPENDED
}
w QSPDFFEϝιουΛ࣮ߦ͢Δͱ$POUJOVBUJPOΛ৽ͨʹ࡞ͯ͠
ผεϨουͰಈ࡞͢ΔίϧʔνϯΛ։࢝͢Δ
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private val continuation: Continuation
= object : Continuation, CoroutineStackFrame {
ɾɾɾ
override val context: CoroutineContext
get () {
val cont = rootContinuation
return when (cont) {
null -> throw IllegalStateException("Not started")
is Continuation<*> -> cont.context
is List<*> ->
(cont as List>).last().context
else -> throw IllegalStateException("e")
}
}
}
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private val continuation: Continuation
= object : Continuation, CoroutineStackFrame {
ɾɾɾ
override val context: CoroutineContext
get () {
val cont = rootContinuation
return when (cont) {
null -> throw IllegalStateException("Not started")
is Continuation<*> -> cont.context
is List<*> ->
(cont as List>).last().context
else -> throw IllegalStateException("e")
}
}
}
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ಠࣗͷCoroutineStart
4FUVQ $BMM 4FOE
.POJUPSJOH
{
delay(1000L)
}
{
delay(1000L)
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
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4FUVQ $BMM 4FOE
.POJUPSJOH
{
asyncFun(context)
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
w ΞϓϦέʔγϣϯϦΫΤετɺϨεϙϯεͷใΛ
ϛϡʔλϒϧʹอ࣋ͨ͠"QQMJDBUJPO$BMMΦϒδΣΫτΛ
֤1JQFMJOF1IBTFؒͰڞ༗͍ͯ͠Δ
{
asyncFun(context)
}
{
getAuth(userID)
}
{
saveProfile(
userID, profile
)
}
"QQMJDBUJPO$BMM
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4FUVQ $BMM 4FOE
.POJUPSJOH
{
asyncFun(context)
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
w "QQMJDBUJPO$BMMύΠϓϥΠϯʹάϩʔόϧͳมͱͯ͠
ڞ༗͞ΕΔͷͰͳ͘ɺ1JQFMJOF1IBTFຖͷίϧʔνϯੜ࣌ʹ
$POUJOVBUJPOͱҰॹʹҾ͖͍ͯ͠Δ
"QQMJDBUJPO$BMM
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4FUVQ $BMM 4FOE
.POJUPSJOH
{
asyncFun(context)
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
w "QQMJDBUJPO$BMMύΠϓϥΠϯʹάϩʔόϧͳมͱͯ͠
ڞ༗͞ΕΔͷͰͳ͘ɺ1JQFMJOF1IBTFຖͷίϧʔνϯੜ࣌ʹ
$POUJOVBUJPOͱҰॹʹҾ͖͍ͯ͠Δ
"QQMJDBUJPO$BMM
ίϧʔνϯΛ։࢝͢Δͱ͖ʹ
$POUJOVBUJPOҎ֎ͷΦϒδΣΫτΛ
Ͳ͏ͬͯ͢ͷ͔ʁ
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public inline fun (suspend () -> T).
startCoroutineUninterceptedOrReturn(
completion: kotlin.coroutines.Continuation
): kotlin.Any? { /* compiled code */ }
public inline fun (suspend R.() -> T).
startCoroutineUninterceptedOrReturn(
receiver: R,
completion: kotlin.coroutines.Continuation
): kotlin.Any? { /* compiled code */ }
w TUBSU$PSPVUJOF6OJOUFSDFQUFE0S3FUVSOΛ͏ͱ
৽ͨʹίϧʔνϯΛੜ͢Δͱ͖ʹ$POUJOVBUJPOΛҾͱͯ͠
͢͜ͱͰίϧʔνϯؒͰ$POUJOVBUJPOΛڞ༗Ͱ͖Δ
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public inline fun (suspend () -> T).
startCoroutineUninterceptedOrReturn(
completion: kotlin.coroutines.Continuation
): kotlin.Any? { /* compiled code */ }
public inline fun (suspend R.() -> T).
startCoroutineUninterceptedOrReturn(
receiver: R,
completion: kotlin.coroutines.Continuation
): kotlin.Any? { /* compiled code */ }
w $POUJOVBUJPOΛίϧʔνϯʹ͢"1*͔͠ެ։͞Ε͍ͯͳ͍
ͦͷͨΊίϧʔνϯ։࢝࣌ʹ"QQMJDBUJPO$BMMҾ͖͢͜ͱ
௨ৗෆՄೳ
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internal actual inline fun
(suspend R.(A) -> Unit).startCoroutineUninterceptedOrReturn3(
receiver: R,
arg: A,
continuation: Continuation
): Any? {
val function = (this as Function3, Any?>)
return function.invoke(receiver, arg, continuation)
}
w ,UPSͰ$POUJOVBUJPOʹՃ͑ͯҙͷܕͷΦϒδΣΫτΛ
Ҿ͖ͯ͠৽ͨʹίϧʔνϯΛ։࢝͢ΔؔΛಠ࣮͍ࣗͯ͠Δ
w ΈࠐΈؔͱ͍ۙॲཧΛҎԼͷؔͰ࣮ݱ͍ͯ͠Δ
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public inline fun (suspend R.() -> T).
startCoroutineUninterceptedOrReturn(
receiver: R,
completion: kotlin.coroutines.Continuation
): kotlin.Any? { /* compiled code */ }
internal actual inline fun
(suspend R.(A) -> Unit).startCoroutineUninterceptedOrReturn3(
receiver: R,
arg: A,
continuation: Continuation
): Any? {
val function = (this as Function3, Any?>)
return function.invoke(receiver, arg, continuation)
}
ϥΠϒϥϦ͔Βఏڙ͞Ε͍ͯΔؔ
,UPSͰಠ࣮͍ࣗͯ͠Δίϧʔνϯ։࢝"1*
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public inline fun (suspend R.() -> T).
startCoroutineUninterceptedOrReturn(
receiver: R,
completion: kotlin.coroutines.Continuation
): kotlin.Any? { /* compiled code */ }
internal actual inline fun
(suspend R.(A) -> Unit).startCoroutineUninterceptedOrReturn3(
receiver: R,
arg: A,
continuation: Continuation
): Any? {
val function = (this as Function3, Any?>)
return function.invoke(receiver, arg, continuation)
}
,UPSͰಠ࣮͍ࣗͯ͠Δίϧʔνϯ։࢝"1*
ϥΠϒϥϦ͔Βఏڙ͞Ε͍ͯΔؔ
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internal actual inline fun
(suspend R.(A) -> Unit).startCoroutineUninterceptedOrReturn3(
receiver: R,
arg: A,
continuation: Continuation
): Any? {
val function = (this as Function3, Any?>)
return function.invoke(receiver, arg, continuation)
}
w ҾΛ"ܕ͔͠ड͚औΒͳ͍ͣͷϥϜμࣜ UIJT
͕Կނ͔
Ҿͱͯ͠"ܕɾ$POUJOVBUJPOͷ̎ͭΛड͚औΔ'VODUJPOܕʹ
Ωϟετ͞Ε͔ͯΒ࣮ߦ͞Ε͍ͯΔ
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internal actual inline fun
((suspend) R.(A, Continuation) -> Unit).
startCoroutineUninterceptedOrReturn3(
receiver: R,
arg: A,
continuation: Continuation
): Any? {
val function = (this as Function3, Any?>)
return function.invoke(receiver, arg, continuation)
}
w ࣮ϥϜμࣜ UIJT
TVTQFOEϥϜμͳͷͰίϯύΠϧ࣌ʹ
Ҿͱͯ͠$POUJOVBUJPOड͚औΔϥϜμࣜʹม͞ΕΔʂ
w ͕࣮ͨͬͯ͠ߦ࣌ͷΩϟετޭ͢Δ
ੜ͞ΕΔίʔυ ٙࣅίʔυ
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internal actual inline fun
((suspend) R.(A, Continuation) -> Unit).
startCoroutineUninterceptedOrReturn3(
receiver: R,
arg: A,
continuation: Continuation
): Any? {
val function = (this as Function3, Any?>)
return function.invoke(receiver, arg, continuation)
}
w ࣮ϥϜμࣜ UIJT
TVTQFOEϥϜμͳͷͰίϯύΠϧ࣌ʹ
Ҿͱͯ͠$POUJOVBUJPOड͚औΔϥϜμࣜʹม͞ΕΔʂ
w ͕࣮ͨͬͯ͠ߦ࣌ͷΩϟετޭ͢Δ
ੜ͞ΕΔίʔυ ٙࣅίʔυ
ίϯύΠϧޙͷίʔυͷγάωνϟΛ
༧ଌͯ͠ڧ੍Ωϟετ͍ͤͯ͞Δ
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internal actual inline fun
((suspend) R.(A, Continuation) -> Unit).
startCoroutineUninterceptedOrReturn3(
receiver: R,
arg: A,
continuation: Continuation
): Any? {
val function = (this as Function3, Any?>)
return function.invoke(receiver, arg, continuation)
}
w ࣮ϥϜμࣜ UIJT
TVTQFOEϥϜμͳͷͰίϯύΠϧ࣌ʹ
Ҿͱͯ͠$POUJOVBUJPOड͚औΔϥϜμࣜʹม͞ΕΔʂ
w ͕࣮ͨͬͯ͠ߦ࣌ͷΩϟετޭ͢Δ
ੜ͞ΕΔίʔυ ٙࣅίʔυ
࣮TUBSU$PSPVUJOF6OJOUFSDFQUFE0S3FUVSOͷ
࣮Ͱಉ͜͡ͱ͕ߦΘΕ͍ͯΔ
͜ͷํ๏Λࢀߟʹ͢Δͱ
ҙͷͷҾΛίϧʔνϯ։࢝࣌ʹ
͢Α͏ͳϨϕϧ"1*Λ
ࣗͰ࣮͢Δ͜ͱ͕Ͱ͖Δ
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·ͱΊ
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$PSPVUJOFTͷϨϕϧ"1*ؔ
,UPSͱඇಉظॲཧύΠϓϥΠϯ
,UPSΛ$PSPVUJOFTͰඥղ͘
ϓϥάΠϯػߏͱύΠϓϥΠϯػߏ
ϚΠΫϩϑϨʔϜϫʔΫͷࢥ
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4FUVQ $BMM 4FOE
.POJUPSJOH
{
asyncFun(context)
}
{
getAuth(userID)
}
{
logging(response)
}
{
saveProfile(
userID, profile
)
}
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ϚΠΫϩϑϨʔϜϫʔΫͷࢥ
w ,UPS͕࠾༻͍ͯ͠ΔϚΠΫϩϑϨʔϜϫʔΫͳઃܭࢥΛհ
w ,UPSຊମࣗମ8FC"QQ'SBNFXPSLͱͯ͠ඞཁ࠷ݶͷ
ػೳ͔࣮͍ͯ͠͠ͳ͍ͨΊɺΞϓϦέʔγϣϯ։ൃऀ͕
খ͘͞ߴʹΞϓϦέʔγϣϯΛ։ൃ͍ͯ͘͠ద͍ͯ͠Δ
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ϓϥάΠϯػߏͱύΠϓϥΠϯػߏ
w ,UPSͷϝΠϯͷઃܭͰ͋Δ
'FBUVSFʹΑΔϓϥάΠϯػߏͱύΠϓϥΠϯػߏΛհ
w ΞϓϦέʔγϣϯ։ൃऀʹඞཁͳػೳʹԠͯ͡ॊೈʹ
ύΠϓϥΠϯΛߏΛͰ͖ΔΑ͏ͳ"1*Λఏڙ͍ͯ͠Δ
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KtorͱඇಉظॲཧύΠϓϥΠϯ
w ,UPSͷඇಉظॲཧύΠϓϥΠϯ্ͰதஅॲཧΛ։࢝ͨ͠Γ
ผεϨουͰಈ࡞͢ΔΑ͏ͳίϧʔνϯΛ։࢝ͨ͠ͱ͖ʹ
ύΠϓϥΠϯͷ֤ϑΣΠζ͕ͲͷΑ͏ʹ࣮ߦ͞ΕΔ͔Λհ
w QSPFFEϝιουͳͲɺΑΓޮతʹॲཧΛ࣮ߦ͞ΕΔͨΊͷ
"1*͕,UPS͔Βఏڙ͞Ε͍ͯΔ
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CoroutinesͷϨϕϧAPI
w ίϧʔνϯͰߴ͍ύϑΥʔϚϯεͳͲΛٻΊΔࡍʹ
ॏཁʹͳͬͯ͘ΔΑ͏ͳϨϕϧͷ"1*Λհ
w $POUJOVBUJPOTVTQFOEؔͷࣗಈมܗ
w TUBSU$PSPVUJOF
TUBSU$PSPVUJOF6OJOUFSDFQUFE0S3FUVSO
w TVTQFOE$PSPVUJOF6OJOUFSDFQUFE0S3FUVSO
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KtorΛCoroutinesͰඥղ͘
w ඇಉظॲཧύΠϓϥΠϯͰͷύϑΥʔϚϯεΛ
͋͛ΔͨΊʹ෦తʹίϧʔνϯͷϨϕϧ"1*Λ׆༻ͨ͠
༷ʑͳςΫχοΫΛհ
w ,UPSΛΘͳ͍ΞϓϦέʔγϣϯ࡞ΔࡍͰ
େྔͷίϧʔνϯΛͬͯߴ͍ύϑΥʔϚϯεΛ
ٻΊΒΕΔΑ͏ͳঢ়گͰࢀߟʹͳΔΑ͏ͳ࣮͕ଘࡏ