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౦ٸϋϯζͷ P2PϨδؒ௨৴2018 9/1 iOSDC Japan 2018 taiki komaba(@r_plus)

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UBJLJLPNBCB !S@QMVT )"/%4-"#*/$

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HandsPOS

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▸ ౦ٸϋϯζͷϨδͱͯࣗࣾ͠։ൃ͍ͯ͠ΔiPadΞϓϦ ▸ ैۀһૢ࡞༻ͱΧελϚʔ༻ͷ2Ϟʔυ ▸ 1୆ͷϨδʹ͖ͭ1ηοτ ▸ ͜ͷैۀһଆͱΧελϚʔଆͰP2P௨৴ HandsPOS

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before after

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2015/12 2016 2017 2018 2019 HandsPOS

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2015/12 2016 2017 2018 2019 85% ಋೖ׬ྃ HandsPOS

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2015/12 2016 2017 2018 2019 2020 ফඅ૿੫ HandsPOS

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Multipeer connectivity P2P

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Multipeer Connectivity ΧελϚʔଆ(C) ैۀһଆ(P) .VMUJQFFS $POOFDUJWJUZ 0001Ϩδ

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ΧελϚʔଆ(C) ैۀһଆ(P) .VMUJQFFS $POOFDUJWJUZ 0001Ϩδ Multipeer Connectivity - औҾ৘ใ (঎඼৘ใɺׂҾ৘ใɺࢧ෷͍৘ใetc) ૹ৴৘ใ

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2015/12 2016 2017 2018 2019 औҾ৘ใ(P2C) HandsPOS

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2015/12 2016 2017 2018 2019 औҾ৘ใ(P2C) HandsPOS Ϋ Ϩ δ ο τ ಋ ೖ ΫϨδοταΠϯཁٻ(P2C) ΫϨδοταΠϯը૾(C2P)

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2015/12 2016 2017 2018 2019 औҾ৘ใ(P2C) HandsPOS Ϋ Ϩ δ ο τ ಋ ೖ ΫϨδοταΠϯཁٻ(P2C) ΫϨδοταΠϯը૾(C2P) όοςϦʔ৘ใ(C2P)

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όοςϦʔ ▸ ϨδͳͷͰৗ࣌ॆిঢ়ଶ ▸ ͳͷͰॆిʹ͸࠷ॳؾΛ࢖͍ͬͯͳ͔ͬͨ ▸ ిѹͳͷ͔Կͳͷ͔ݪҼڀ໌͍ͯ͠ͳ͍͕ ॆి͞Εͳ͍έʔε͕ଟʑൃੜ ▸ ΞϓϦέʔγϣϯଆͰόοςϦʔ࢒͕গͳ ͘ͳ͖ͬͯͨΒ(30%)஫ҙΛଅ͢Ξϥʔτ Λදࣔ

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ͱ͋Δ೔ͷόοςϦʔਪҠ 30%

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༗ઢ

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༗ઢ ͪΐͬͱͰ΋ॆిঢ়ଶ Ͱ͸ͳ͘ͳΔͱɾɾɾ

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༗ઢ NICফ໓ lo0 ←ϧʔϓόοΫ en0 ← WiFi en3 ← Ethernet

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MultipeerConnectivityͷ໰୊఺

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઀ଓੑ͕ ͋·Γྑ͘ͳ͍

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MultipeerConnectivity໰୊ ▸ ͭͳ͕Δ࣌͸εοͱͭͳ͕Δ ▸ ͭͳ͕ͬͯΔ࣌͸௕࣌ؒͷ઀ଓͰ΋໰୊ͳ͍ ▸ ͕ɺμϝʹͳΔͱେମͣͬͱμϝʹͳΔ ▸ μϝʹͳ͍ͬͯΔ࣌Ͱ΋Web઀ଓ͸ਖ਼ৗ ▸ ͓ޓ͍ͷΞϓϦΛ࠶ىಈ͢Δͱେମͳ͓ΔʢTipsʣ ▸ ·͊BonjourͰ͢͠

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2015/12 2016 2017 2018 2019 औҾ৘ใ(P2C) HandsPOS Ϋ Ϩ δ ο τ ಋ ೖ ΫϨδοταΠϯཁٻ(P2C) ΫϨδοταΠϯը૾(C2P) όοςϦʔ৘ใ(C2P)

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2015/12 2016 2017 2018 2019 औҾ৘ใ(P2C) HandsPOS Ϋ Ϩ δ ο τ ಋ ೖ ΫϨδοταΠϯཁٻ(P2C) ΫϨδοταΠϯը૾(C2P) όοςϦʔ৘ใ(C2P) ηϛηϧϑํࣜϨδ

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ηϛηϧϑ Ϩδ

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ηϛηϧϑϨδ ▸ εʔύʔʹΑ͋͘Δํࣜ ▸ ঎඼εΩϟϯͳͲ͸ैདྷͲ͓Γैۀһ͕࣮ࢪ ▸ ࢧ෷͍෦෼Λઐ༻୺຤ʹ͓ͯ٬༷ࣗ਎ʹߦ͍ͬͯͨͩ͘

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৽॓ళ8Fʹͯల։

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ηϛηϧϑϨδ ▸ εʔύʔʹΑ͋͘Δํࣜ ▸ ঎඼εΩϟϯͳͲ͸ैདྷͲ͓Γैۀһ͕࣮ࢪ ▸ ࢧ෷͍෦෼Λઐ༻୺຤ʹ͓ͯ٬༷ࣗ਎ʹߦ͍ͬͯͨͩ͘ - ঎඼εΩϟϯetc औҾσʔλૹ৴ - ࢧ෷͍ - ݱۚ - ΫϨδοτ - ిࢠϚωʔ ਫ਼ࢉػ(ෳ਺)

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ηϛηϧϑϨδʹ޲͚ͯ ߴ৴པͷ11௨৴ํ͕ࣜඞཁ

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ηϛηϧϑ༻ɹ৽௨৴ํࣜ ▸ N:NͰͷ௨৴Λ૝ఆ ▸ MultipeerConnectivity(ҎԼMC)Ͱ઀ଓͰ͖ͳ͍࣌Ͱ΋Web઀ଓ͸ੜ͖͍ͯͨ ▸ ΦϯϥΠϯܦ༝ͳΒΠέϧ ▸ MC͸εςʔτϑϧͳͷ͕΍΍͍͜͠ݪҼɾɾ͔΋ʁ ▸ εςʔτϨε ▸ ͱ͸͍͑ɺϨδͳͷͰΦϑϥΠϯͰͷՔಇ΋ߟྀ ▸ ΦϯϥΠϯܦ༝ͷ΋ͷ͸ಈ࡞͠ͳ͍ ▸ ΦϑϥΠϯಈ࡞Ͱ͸MC͸ྑཱ͍ͪҐஔ ▸ Ͱ͋Ε͹ෳ਺ͷ௨৴ํࣜΛଋͶΔΑ͏ͳ΋ͷɾɾɾ

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Swallow ௨৴ϥΠϒϥϦ

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Swallow ▸ ֤௨৴͸pluginํࣜ ▸ εςʔτϨε/ϑϧ͸໰Θͳ͍ ▸ ಉҰ௨৴಺༰͸ૣ͍΋ͷউͪ ▸ εςʔτϨε΋ؚ·ΕΔͷͰड͚औΓΛද໌͢ΔAckΛฦ ٫͢Δ

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Swallow ※͜ͷ৔߹ͷOffline͸ΦϑϥΠϯͰ௨৴Մೳ͔Ͳ͏͔ MQTT͸LANʹαʔό͕͋Δ૝ఆ http͸ΞϓϦ಺ʹwebαʔόػೳͷ౥ࡌ ํࣜ State Offline Multipeer Full Yes http Less Yes AWS SQS Less No Firestore Auto No RealmCloud Auto No MQTT Full Yes AWS IoT - No ࠾༻ ✓ ✓

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Swallow Core Multipeer Client http AWS SQS Core Multipeer Client http AWS SQS FCFS औҾ σʔλ

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Swallow Core Multipeer Client http AWS SQS Core Multipeer Client http AWS SQS Ack

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Multipeer, AWS SQS rate ઌணͨ͠Clientͷൺ཰ ●Multipeer ●AWS SQS ▸ Αͯ͘൒ʑ ▸ ଟ͍΋ͷ͸9ׂ͕SQS ▸ MultipeerϨΠςϯγ͸ߴ ଎ɻ઀ଓͰ͖͍ͯΕ͹͜ ͪΒ͕ؒҧ͍ͳ͘ઌணɻ

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2015/12 2016 2017 2018 2019 औҾ৘ใ(P2C) HandsPOS Ϋ Ϩ δ ο τ ಋ ೖ ΫϨδοταΠϯཁٻ(P2C) ΫϨδοταΠϯը૾(C2P) όοςϦʔ৘ใ(C2P) ηϛηϧϑํࣜϨδ

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2015/12 2016 2017 2018 2019 औҾ৘ใ(P2C) HandsPOS Ϋ Ϩ δ ο τ ಋ ೖ ΫϨδοταΠϯཁٻ(P2C) ΫϨδοταΠϯը૾(C2P) όοςϦʔ৘ใ(C2P) SwallowʹΑΔ N:N௨৴

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·ͱΊ ▸ MultipeerConnectivity͸ॴḨBonjour ▸ ͚ΕͲAPͳ͠ͰͷWiFi઀ଓ(peer-to-peer Wi-Fi)͕Մೳ ▸ ΦϯϥΠϯͰͷ௨৴Ͱิॿ ▸ ͭͳ͕Δ࣌͸MutipeerConnectivityͷϨΠςϯγʔ͕଎͍ ▸ શମͰΈΔͱѹ౗తʹΦϯϥΠϯ௨৴ͰٹΘΕ͍ͯΔ ▸ 8݄಄ͷ౦ژϦʔδϣϯSQSͷো֐࣌͸؊Λྫྷ΍ͨ͠ ▸ FIFOΩϡʔʹ͍ͨ͠

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͓ΘΓ