{"id":1663,"date":"2026-04-03T21:41:13","date_gmt":"2026-04-03T21:41:13","guid":{"rendered":"https:\/\/wayhope.kro.kr\/?p=1663"},"modified":"2026-08-31T07:32:37","modified_gmt":"2026-08-31T07:32:37","slug":"c-%ec%84%9c%eb%b2%84-%ea%b5%ac%ec%a1%b0-%ed%95%b5%ec%8b%ac-%ec%a0%95%eb%a6%ac","status":"publish","type":"post","link":"https:\/\/wayhope.kro.kr\/?p=1663","title":{"rendered":"C++ \uc11c\ubc84 \uad6c\uc870 \ud575\uc2ec \uc815\ub9ac"},"content":{"rendered":"\n

\uc11c\ubc84\uc758 \ubcf8\uc9c8\uc740 \uacb0\uad6d \uc694\uccad\uc744 \ubc1b\uace0, \ucc98\ub9ac\ud558\uace0, \uc751\ub2f5\ud558\ub294 \uac83<\/strong>\uc774\ub2e4.<\/p>\n\n\n\n

Client -> Connection -> Receive -> Packet -> Game Logic -> Send -> Client<\/code><\/pre>\n\n\n\n
\uc5ec\uae30\uc5d0 \uc5ec\ub7ec \ud074\ub77c\uc774\uc5b8\ud2b8\uac00 \ub3d9\uc2dc\uc5d0 \uc811\uc18d\ud558\uba74\uc11c I\/O\ub97c \ud6a8\uc728\uc801\uc73c\ub85c \ucc98\ub9ac\ud574\uc57c \ud558\ub294 \ubb38\uc81c\uac00 \uc0dd\uae34\ub2e4.<\/p>\n\n\n\n
Client -> TCP -> Socket -> I\/O Model -> Session -> Buffer -> Packet -> Game Logic -> Send<\/code><\/pre>\n\n\n\n
\n\n\n\n
TCP \uc11c\ubc84 \uae30\ubcf8 \ud750\ub984<\/h2>\n\n\n\n
Socket -> Bind -> Listen -> Accept -> Client Socket -> Recv \/ Send<\/code><\/pre>\n\n\n\n
Listen Socket\uc740 \uc5f0\uacb0\uc744 \ubc1b\ub294 \uc6a9\ub3c4\uc774\uace0, \uc2e4\uc81c \ud1b5\uc2e0\uc740 Client Socket\uc744 \ud1b5\ud574 \uc774\ub8e8\uc5b4\uc9c4\ub2e4.<\/p>\n\n\n\n
Server -> Listen Socket -> Client Connection -> Client Socket<\/code><\/pre>\n\n\n\n
\n\n\n\n
TCP\uc640 Packet \ucc98\ub9ac<\/h2>\n\n\n\n
TCP\ub294 Packet \ub2e8\uc704\uac00 \uc544\ub2c8\ub77c Byte Stream\uc73c\ub85c \ub370\uc774\ud130\ub97c \uc804\ub2ec\ud55c\ub2e4.<\/p>\n\n\n\n
Client Packet -> TCP Stream -> Receive Buffer -> Packet Framing -> Packet -> Handler<\/code><\/pre>\n\n\n\n
\ud558\ub098\uc758 Send\uac00 \ud558\ub098\uc758 Receive\ub85c \ub300\uc751\ub41c\ub2e4\ub294 \ubcf4\uc7a5\uc740 \uc5c6\ub2e4.<\/p>\n\n\n\n
Send Packet A -> TCP Stream -> Receive A \uc77c\ubd80 -> Receive A \ub098\uba38\uc9c0<\/code><\/pre>\n\n\n\n
\uc5ec\ub7ec Packet\uc774 \ud558\ub098\uc758 Receive\uc5d0 \ud569\uccd0\uc9c8 \uc218\ub3c4 \uc788\ub2e4.<\/p>\n\n\n\n
Send A -> Send B -> TCP Stream -> Receive A + B<\/code><\/pre>\n\n\n\n
\ub530\ub77c\uc11c \uc77c\ubc18\uc801\uc778 Packet \ucc98\ub9ac \ud750\ub984\uc740 \ub2e4\uc74c\uacfc \uac19\ub2e4.<\/p>\n\n\n\n
Receive -> Buffer \ucd94\uac00 -> Header \ud655\uc778 -> Packet Length \ud655\uc778 -> \ub370\uc774\ud130 \ucda9\ubd84 \uc5ec\ubd80 \ud655\uc778 -> Packet \ucd94\ucd9c -> Handler<\/code><\/pre>\n\n\n\n
\n\n\n\n
Blocking Socket<\/h1>\n\n\n\n
Blocking Socket\uc5d0\uc11c\ub294 I\/O \uc791\uc5c5\uc774 \uc644\ub8cc\ub420 \ub54c\uae4c\uc9c0 \ud604\uc7ac Thread\uac00 \uae30\ub2e4\ub9b0\ub2e4.<\/p>\n\n\n\n
recv() -> \ub370\uc774\ud130 \ub300\uae30 -> \ub370\uc774\ud130 \ub3c4\ucc29 -> \ucc98\ub9ac<\/code><\/pre>\n\n\n\n
\uc5f0\uacb0\ub9c8\ub2e4 Thread\ub97c \uc0ac\uc6a9\ud558\ub294 \uad6c\uc870\ub77c\uba74 \ub2e4\uc74c\ucc98\ub7fc \ub41c\ub2e4.<\/p>\n\n\n\n
Client A -> Thread A\nClient B -> Thread B\nClient C -> Thread C\nClient N -> Thread N<\/code><\/pre>\n\n\n\n
\uc5f0\uacb0 \uc218\uac00 \uc99d\uac00\ud558\uba74 Thread \uad00\ub9ac \ube44\uc6a9\uacfc Context Switching \ube44\uc6a9\uc774 \uc99d\uac00\ud560 \uc218 \uc788\ub2e4.<\/p>\n\n\n\n
\n\n\n\n
IOCP<\/h1>\n\n\n\n
Windows\uc5d0\uc11c\ub294 IOCP\ub97c \uc0ac\uc6a9\ud574 \ube44\ub3d9\uae30 I\/O\ub97c \ucc98\ub9ac\ud560 \uc218 \uc788\ub2e4.<\/p>\n\n\n\n
\ud575\uc2ec \ud750\ub984\uc740 \ub2e4\uc74c\uc774\ub2e4.<\/p>\n\n\n\n
WSARecv() -> I\/O \uc694\uccad -> Windows -> I\/O \ucc98\ub9ac -> I\/O \uc644\ub8cc -> IOCP -> GetQueuedCompletionStatus() -> Worker Thread -> Packet \ucc98\ub9ac<\/code><\/pre>\n\n\n\n
IOCP\uc758 \ud575\uc2ec\uc740 Completion<\/strong>\uc774\ub2e4.<\/p>\n\n\n\n
I\/O \uc694\uccad -> I\/O \uc644\ub8cc -> Completion Queue -> Completion \ucc98\ub9ac<\/code><\/pre>\n\n\n\n
IOCP \uc790\uccb4\uac00 Thread Pool\uc740 \uc544\ub2c8\ub2e4.<\/p>\n\n\n\n
IOCP -> \uc644\ub8cc\ub41c I\/O \uc804\ub2ec -> Worker Thread -> \uc2e4\uc81c \uc791\uc5c5 \ucc98\ub9ac<\/code><\/pre>\n\n\n\n
\n\n\n\n
IOCP Overlapped I\/O<\/h2>\n\n\n\n
\ube44\ub3d9\uae30 I\/O \uc791\uc5c5\uc758 \uc0c1\ud0dc\ub97c OVERLAPPED<\/code>\ub97c \ud1b5\ud574 \uad00\ub9ac\ud55c\ub2e4.<\/p>\n\n\n\n
WSARecv() -> OVERLAPPED -> Windows I\/O -> I\/O \uc644\ub8cc -> IOCP -> OVERLAPPED \ud655\uc778 -> Session \ud655\uc778 -> IO Type \ud655\uc778 -> \ucc98\ub9ac<\/code><\/pre>\n\n\n\n
\uc2e4\uc81c \uc11c\ubc84\uc5d0\uc11c\ub294 I\/O \uc791\uc5c5 \uc815\ubcf4\ub97c \ud655\uc7a5\ud574\uc11c \uad00\ub9ac\ud558\ub294 \uacbd\uc6b0\uac00 \ub9ce\ub2e4.<\/p>\n\n\n\n
IO Context -> OVERLAPPED + Session + Buffer + IO Type<\/code><\/pre>\n\n\n\n
I\/O \uc885\ub958\ub294 \ub2e4\uc74c\ucc98\ub7fc \ub098\ub20c \uc218 \uc788\ub2e4.<\/p>\n\n\n\n
Accept -> Recv -> Send<\/code><\/pre>\n\n\n\n
\n\n\n\n
IOCP Worker \uad6c\uc870<\/h1>\n\n\n\n
Worker Thread \uc5ec\ub7ec \uac1c\uac00 \ud558\ub098\uc758 IOCP\uc5d0\uc11c \uc644\ub8cc\ub41c \uc791\uc5c5\uc744 \uac00\uc838\uac08 \uc218 \uc788\ub2e4.<\/p>\n\n\n\n
I\/O Request -> Windows -> IOCP -> Worker Thread -> Packet Processing<\/code><\/pre>\n\n\n\n
\uc5ec\ub7ec Worker\ub97c \uc0ac\uc6a9\ud55c\ub2e4\uba74:<\/p>\n\n\n\n
IOCP -> Worker 1\nIOCP -> Worker 2\nIOCP -> Worker 3<\/code><\/pre>\n\n\n\n
\ud575\uc2ec \uad00\uacc4\ub294 \ub2e4\uc74c\uc774\ub2e4.<\/p>\n\n\n\n
IOCP -> Completion \uc804\ub2ec\nWorker Thread -> Completion \ucc98\ub9ac<\/code><\/pre>\n\n\n\n
\n\n\n\n
Linux epoll<\/h1>\n\n\n\n
Linux\uc5d0\uc11c\ub294 epoll\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub2e4.<\/p>\n\n\n\n
\ud575\uc2ec \ud750\ub984\uc740 IOCP\uc640 \ub2e4\ub974\ub2e4.<\/p>\n\n\n\n
Socket -> epoll_ctl() -> Socket \uac10\uc2dc -> I\/O \uac00\ub2a5 \uc0c1\ud0dc -> epoll_wait() -> Socket \ud655\uc778 -> recv() \/ send()<\/code><\/pre>\n\n\n\n
epoll\uc758 \ud575\uc2ec\uc740 Readiness<\/strong>\ub2e4.<\/p>\n\n\n\n
Socket \ub4f1\ub85d -> I\/O \uac00\ub2a5 \uc0c1\ud0dc \uac10\uc9c0 -> Application \ud1b5\uc9c0 -> Application\uc774 I\/O \uc218\ud589<\/code><\/pre>\n\n\n\n
IOCP\uc640 \ub2ec\ub9ac epoll\uc774 \ub370\uc774\ud130\ub97c \ub300\uc2e0 \uc77d\uc5b4\uc8fc\ub294 \uac83\uc740 \uc544\ub2c8\ub2e4.<\/p>\n\n\n\n
epoll_wait() -> Read \uac00\ub2a5 \ud655\uc778 -> recv() -> \ub370\uc774\ud130 \ucc98\ub9ac<\/code><\/pre>\n\n\n\n
\n\n\n\n
epoll Event Loop<\/h1>\n\n\n\n
\uc77c\ubc18\uc801\uc778 epoll \uc11c\ubc84\ub294 Event Loop \uad6c\uc870\uc640 \ud568\uaed8 \uc0ac\uc6a9\ub41c\ub2e4.<\/p>\n\n\n\n
Socket \ub4f1\ub85d -> epoll_wait() -> Event \ud655\uc778 -> Socket \ucc98\ub9ac -> recv() \/ send() -> Event Loop \ubc18\ubcf5<\/code><\/pre>\n\n\n\n
\uc5ec\ub7ec Socket\uc744 \ud558\ub098\uc758 Event Loop\uc5d0\uc11c \uac10\uc2dc\ud560 \uc218 \uc788\ub2e4.<\/p>\n\n\n\n
Socket A -> epoll\nSocket B -> epoll\nSocket C -> epoll\nSocket D -> epoll<\/code><\/pre>\n\n\n\n
\uc2e4\uc81c \uc2e4\ud589 \ud750\ub984\uc740 \ub2e4\uc74c\uacfc \uac19\ub2e4.<\/p>\n\n\n\n
epoll -> \uc5ec\ub7ec Socket \uac10\uc2dc -> I\/O \uac00\ub2a5 Socket \ud655\uc778 -> \ud574\ub2f9 Socket \ucc98\ub9ac -> \ub2e4\uc74c \uc774\ubca4\ud2b8 \ub300\uae30<\/code><\/pre>\n\n\n\n
\n\n\n\n
Non-blocking Socket<\/h1>\n\n\n\n
epoll\uc5d0\uc11c\ub294 \uc77c\ubc18\uc801\uc73c\ub85c Non-blocking Socket\uc744 \uc0ac\uc6a9\ud55c\ub2e4.<\/p>\n\n\n\n
epoll_wait() -> READ \uac00\ub2a5 -> recv() -> recv() -> recv() -> EAGAIN -> \ud604\uc7ac \ucc98\ub9ac \uc885\ub8cc<\/code><\/pre>\n\n\n\n
\ud2b9\ud788 Edge Trigger \ubc29\uc2dd\uc5d0\uc11c\ub294 \uac00\ub2a5\ud55c \ub370\uc774\ud130\ub97c \ubaa8\ub450 \uc77d\ub294 \uad6c\uc870\uac00 \uc911\uc694\ud558\ub2e4.<\/p>\n\n\n\n
epoll_wait() -> recv() \ubc18\ubcf5 -> EAGAIN -> Event \ucc98\ub9ac \uc885\ub8cc<\/code><\/pre>\n\n\n\n
\n\n\n\n
Level Trigger<\/h1>\n\n\n\n
Level Trigger\uc5d0\uc11c\ub294 \uc870\uac74\uc774 \uacc4\uc18d \uc720\uc9c0\ub418\uba74 \uc774\ubca4\ud2b8\uac00 \ub2e4\uc2dc \ubc1c\uc0dd\ud560 \uc218 \uc788\ub2e4.<\/p>\n\n\n\n
\ub370\uc774\ud130 \ub3c4\ucc29 -> EPOLLIN -> \uc77c\ubd80 \ub370\uc774\ud130 \uc77d\uc74c -> \ub370\uc774\ud130 \uc794\uc5ec -> EPOLLIN -> \ub0a8\uc740 \ub370\uc774\ud130 \ucc98\ub9ac<\/code><\/pre>\n\n\n\n
\n\n\n\n
Edge Trigger<\/h1>\n\n\n\n
Edge Trigger\uc5d0\uc11c\ub294 \uc0c1\ud0dc \ubcc0\ud654\uac00 \ubc1c\uc0dd\ud55c \uc2dc\uc810\uc744 \uae30\uc900\uc73c\ub85c \uc774\ubca4\ud2b8\ub97c \ubc1b\ub294\ub2e4.<\/p>\n\n\n\n
\ub370\uc774\ud130 \uc5c6\uc74c -> \ub370\uc774\ud130 \ub3c4\ucc29 -> EPOLLIN -> recv() \ubc18\ubcf5 -> EAGAIN<\/code><\/pre>\n\n\n\n
\ub530\ub77c\uc11c ET\uc5d0\uc11c\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \ub2e4\uc74c \ud750\ub984\uc774 \ub41c\ub2e4.<\/p>\n\n\n\n
epoll_wait() -> EPOLLIN -> recv() \ubc18\ubcf5 -> EAGAIN -> \ub2e4\uc74c Event<\/code><\/pre>\n\n\n\n
\n\n\n\n
IOCP\uc640 epoll<\/h1>\n\n\n\n
\ub450 \uae30\uc220\uc758 \ud575\uc2ec \ucc28\uc774\ub294 \ub2e4\uc74c \ud558\ub098\ub85c \uc7a1\uc73c\uba74 \ub41c\ub2e4.<\/p>\n\n\n\n
IOCP -> Completion\nepoll -> Readiness<\/code><\/pre>\n\n\n\n
\uc880 \ub354 \ud480\uba74 \ub2e4\uc74c\uacfc \uac19\ub2e4.<\/p>\n\n\n\n
IOCP -> I\/O \uc694\uccad -> OS \ucc98\ub9ac -> I\/O \uc644\ub8cc -> Completion \uc804\ub2ec -> Application \ucc98\ub9ac<\/code><\/pre>\n\n\n\n
epoll -> Socket \uac10\uc2dc -> I\/O \uac00\ub2a5 -> Application \ud1b5\uc9c0 -> Application\uc774 I\/O \uc218\ud589<\/code><\/pre>\n\n\n\n
\ub530\ub77c\uc11c \uc804\uccb4 \ud750\ub984\uc744 \ube44\uad50\ud558\uba74:<\/p>\n\n\n\n
IOCP -> Async I\/O Request -> OS -> Completion -> Worker -> Processing<\/code><\/pre>\n\n\n\n
epoll -> Socket Monitoring -> Readiness -> epoll_wait() -> recv \/ send -> Processing<\/code><\/pre>\n\n\n\n
\n\n\n\n
I\/O \ubaa8\ub378\uacfc \uc2e4\ud589 \uad6c\uc870<\/h1>\n\n\n\n
\uc5ec\uae30\uc11c \uc911\uc694\ud55c \uad6c\ubd84\uc774 \uc788\ub2e4.<\/p>\n\n\n\n
IOCP\uc640 epoll\uc740 OS\uc758 I\/O \ubaa8\ub378\uc774\uace0, Event Loop\uc640 Worker Pool\uc740 Application\uc758 \uc2e4\ud589 \uad6c\uc870\ub2e4.<\/strong><\/p>\n\n\n\n
IOCP \/ epoll -> OS I\/O Model<\/code><\/pre>\n\n\n\n
Event Loop \/ Worker Pool \/ Game Thread -> Application Execution Model<\/code><\/pre>\n\n\n\n
\ub530\ub77c\uc11c \ub2e4\uc74c\ucc98\ub7fc \uace0\uc815\ud574\uc11c \uc0dd\uac01\ud558\uba74 \uc548 \ub41c\ub2e4.<\/p>\n\n\n\n
IOCP -> Worker Pool\nepoll -> Event Loop<\/code><\/pre>\n\n\n\n
\uc2e4\uc81c\ub85c\ub294 \ub2e4\uc74c\ucc98\ub7fc \uc870\ud569\ud560 \uc218 \uc788\ub2e4.<\/p>\n\n\n\n
IOCP -> Worker Thread<\/code><\/pre>\n\n\n\n
IOCP -> Worker Pool<\/code><\/pre>\n\n\n\n
epoll -> Event Loop<\/code><\/pre>\n\n\n\n
epoll -> Event Dispatch -> Worker Pool<\/code><\/pre>\n\n\n\n
\n\n\n\n
Session \uad6c\uc870<\/h1>\n\n\n\n
Socket\uc744 \uadf8\ub300\ub85c \uc0ac\uc6a9\ud558\ub294 \uac83\ubcf4\ub2e4 Session\uc774\ub77c\ub294 \uac1d\uccb4\ub85c \uc5f0\uacb0\uc744 \ucd94\uc0c1\ud654\ud558\ub294 \uacbd\uc6b0\uac00 \ub9ce\ub2e4.<\/p>\n\n\n\n
Socket -> Session<\/code><\/pre>\n\n\n\n
Session \uc548\uc5d0\ub294 \uc5f0\uacb0\uc5d0 \ud544\uc694\ud55c \uc0c1\ud0dc\ub97c \uad00\ub9ac\ud55c\ub2e4.<\/p>\n\n\n\n
Session -> Socket + Receive Buffer + Send Buffer + Connection State + User State<\/code><\/pre>\n\n\n\n
\uc804\uccb4 \ud750\ub984\uc740 \ub2e4\uc74c\uacfc \uac19\ub2e4.<\/p>\n\n\n\n
Socket -> Session -> Receive Buffer -> Packet -> Handler -> Game Logic<\/code><\/pre>\n\n\n\n
\n\n\n\n
Receive \ucc98\ub9ac<\/h1>\n\n\n\n
\uac8c\uc784 \uc11c\ubc84\uc758 \uc2e4\uc81c Receive \ud750\ub984\uc740 \ub2e4\uc74c\uacfc \uac19\uc774 \ubcfc \uc218 \uc788\ub2e4.<\/p>\n\n\n\n
Client -> TCP -> Socket -> I\/O Model -> Session -> Receive Buffer -> Packet Framing -> Packet -> Packet Handler -> Game Logic<\/code><\/pre>\n\n\n\n
Packet Framing \uacfc\uc815\uc740 \ub2e4\uc74c\uacfc \uac19\ub2e4.<\/p>\n\n\n\n
Receive -> Buffer \ucd94\uac00 -> Header \ud655\uc778 -> Length \ud655\uc778 -> Packet \uc644\uc131 -> Packet \ucd94\ucd9c -> Handler<\/code><\/pre>\n\n\n\n
\n\n\n\n
Send \ucc98\ub9ac<\/h1>\n\n\n\n
Send \uc5ed\uc2dc \ube44\ub3d9\uae30\ub85c \uad00\ub9ac\ud558\ub294 \uacbd\uc6b0\uac00 \ub9ce\ub2e4.<\/p>\n\n\n\n
Game Logic -> Packet \uc0dd\uc131 -> Send Queue -> Send Buffer -> Async Send -> I\/O \uc644\ub8cc -> \ub2e4\uc74c Send<\/code><\/pre>\n\n\n\n
\uc5ec\ub7ec \uacf3\uc5d0\uc11c \ud558\ub098\uc758 Session\uc5d0 Send\ub97c \uc694\uccad\ud560 \uc218\ub3c4 \uc788\ub2e4.<\/p>\n\n\n\n
Game Logic A -> Send Queue\nGame Logic B -> Send Queue\nGame Logic C -> Send Queue<\/code><\/pre>\n\n\n\n
\uc774\ud6c4 \ud558\ub098\uc758 \ud750\ub984\uc73c\ub85c \ucc98\ub9ac\ud55c\ub2e4.<\/p>\n\n\n\n
Send Queue -> Send Buffer -> Async Send -> Completion \/ Writable Event -> \ub2e4\uc74c Send<\/code><\/pre>\n\n\n\n
\n\n\n\n
\uba40\ud2f0\uc2a4\ub808\ub529<\/h1>\n\n\n\n
Network Thread\uc640 Game Thread\ub97c \ubd84\ub9ac\ud558\uba74 \ub2e4\uc74c\uacfc \uac19\uc740 \uad6c\uc870\ub97c \ub9cc\ub4e4 \uc218 \uc788\ub2e4.<\/p>\n\n\n\n
Network I\/O -> Packet -> Packet Queue -> Game Thread -> Game State<\/code><\/pre>\n\n\n\n
\uc5ec\ub7ec Network Worker\uac00 \uc874\uc7ac\ud560 \uc218\ub3c4 \uc788\ub2e4.<\/p>\n\n\n\n
IOCP \/ epoll -> Network Worker -> Packet Queue -> Game Thread -> Game State<\/code><\/pre>\n\n\n\n
\uc774 \uad6c\uc870\uc5d0\uc11c\ub294 Network Layer\uac00 \uac8c\uc784 \uc0c1\ud0dc\ub97c \uc9c1\uc811 \ubcc0\uacbd\ud558\uc9c0 \uc54a\uace0 Packet\uc744 Game Thread\uc5d0 \uc804\ub2ec\ud558\ub3c4\ub85d \ub9cc\ub4e4 \uc218 \uc788\ub2e4.<\/p>\n\n\n\n
\n\n\n\n
\ub3d9\uc2dc\uc131<\/h1>\n\n\n\n
\uc5ec\ub7ec Thread\uac00 \uac19\uc740 \ub370\uc774\ud130\ub97c \uc811\uadfc\ud558\uba74 \ub3d9\uc2dc\uc131 \ubb38\uc81c\uac00 \ubc1c\uc0dd\ud55c\ub2e4.<\/p>\n\n\n\n
Worker A -> Shared Data\nWorker B -> Shared Data<\/code><\/pre>\n\n\n\n
\uc774 \uacfc\uc815\uc5d0\uc11c Race Condition\uc774 \ubc1c\uc0dd\ud560 \uc218 \uc788\ub2e4.<\/p>\n\n\n\n
Thread A -> Read \/ Write\nThread B -> Read \/ Write\n        -> Race Condition<\/code><\/pre>\n\n\n\n
\uc774\ub97c \ud574\uacb0\ud558\uae30 \uc704\ud574 \uc0c1\ud669\uc5d0 \ub530\ub77c \ub3d9\uae30\ud654 \uad6c\uc870\ub97c \uc0ac\uc6a9\ud55c\ub2e4.<\/p>\n\n\n\n
Shared Data -> Mutex \/ Atomic \/ Lock-free Queue \/ Thread Ownership<\/code><\/pre>\n\n\n\n
\ud558\uc9c0\ub9cc \ub354 \uc911\uc694\ud55c \ubc29\ubc95\uc740 \uacf5\uc720 \uc790\uccb4\ub97c \uc904\uc774\ub294 \uac83\uc774\ub2e4.<\/p>\n\n\n\n
Network Thread -> Packet Queue -> Game Thread -> Game State<\/code><\/pre>\n\n\n\n
\n\n\n\n
libuv<\/h1>\n\n\n\n
\ud50c\ub7ab\ud3fc\ubcc4 I\/O API\ub97c \uc9c1\uc811 \uc0ac\uc6a9\ud558\ub294 \ub300\uc2e0 libuv \uac19\uc740 \ucd94\uc0c1\ud654 \uacc4\uce35\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub2e4.<\/p>\n\n\n\n
Application -> libuv -> Platform I\/O<\/code><\/pre>\n\n\n\n
\uc6b4\uc601\uccb4\uc81c\uc5d0 \ub530\ub77c \ub0b4\ubd80\uc801\uc73c\ub85c \ub2e4\ub978 I\/O \uae30\uc220\uc744 \uc0ac\uc6a9\ud55c\ub2e4.<\/p>\n\n\n\n
Application -> libuv -> Windows -> IOCP<\/code><\/pre>\n\n\n\n
Application -> libuv -> Linux -> epoll<\/code><\/pre>\n\n\n\n
\ub530\ub77c\uc11c \uac1c\ubc1c\uc790\uac00 \ud50c\ub7ab\ud3fc\ubcc4 I\/O \uad6c\ud604\uc744 \uc9c1\uc811 \ubd84\ub9ac\ud574\uc57c \ud558\ub294 \ubd80\ub2f4\uc774 \uc904\uc5b4\ub4e0\ub2e4.<\/p>\n\n\n\n
\n\n\n\n
libuv Event Loop<\/h1>\n\n\n\n
libuv\uc5d0\uc11c\ub294 Event Loop\uac00 \ud575\uc2ec \uc2e4\ud589 \uad6c\uc870\ub2e4.<\/p>\n\n\n\n
Application -> libuv -> Event Loop -> Network Event -> Callback -> Packet \ucc98\ub9ac<\/code><\/pre>\n\n\n\n
TCP \uc11c\ubc84\ub97c \uae30\uc900\uc73c\ub85c \ubcf4\uba74:<\/p>\n\n\n\n
Client -> Network -> libuv -> Event Loop -> Read Callback -> Packet \ucc98\ub9ac<\/code><\/pre>\n\n\n\n
\n\n\n\n
\uc804\uccb4 \uc11c\ubc84 \uad6c\uc870<\/h1>\n\n\n\n
\uc9c0\uae08\uae4c\uc9c0\uc758 \ub0b4\uc6a9\uc744 \ud558\ub098\ub85c \ubb36\uc73c\uba74 \ub2e4\uc74c\uacfc \uac19\ub2e4.<\/p>\n\n\n\n
Client -> TCP -> Socket -> IOCP \/ epoll -> Session -> Receive Buffer -> Packet Framing -> Packet -> Packet Handler -> Game Logic -> Game State<\/code><\/pre>\n\n\n\n
Send\uae4c\uc9c0 \ud3ec\ud568\ud558\uba74:<\/p>\n\n\n\n
Client -> TCP -> Socket -> IOCP \/ epoll -> Session -> Receive Buffer -> Packet Framing -> Packet -> Handler -> Game Logic -> Send Queue -> Send Buffer -> IOCP \/ epoll -> TCP -> Client<\/code><\/pre>\n\n\n\n
\uba40\ud2f0\uc2a4\ub808\ub529\uae4c\uc9c0 \ud3ec\ud568\ud558\uba74:<\/p>\n\n\n\n
Client -> TCP -> Socket -> IOCP \/ epoll -> Network Worker -> Packet Queue -> Game Thread -> Game Logic -> Game State<\/code><\/pre>\n\n\n\n
\n\n\n\n
C++ \uc11c\ubc84 \uc804\uccb4 \uacc4\uce35<\/h1>\n\n\n\n
\uc11c\ubc84\ub97c \uacc4\uce35\uc73c\ub85c \ub098\ub204\uba74 \ub2e4\uc74c\ucc98\ub7fc \ubcfc \uc218 \uc788\ub2e4.<\/p>\n\n\n\n
Client -> Network -> Socket -> I\/O Model -> Session -> Buffer -> Packet -> Handler -> Game Logic -> Game State -> Database<\/code><\/pre>\n\n\n\n
\uac01 \uacc4\uce35\uc758 \uc5ed\ud560\uc740 \ubd84\ub9ac\ub41c\ub2e4.<\/p>\n\n\n\n
Socket -> Network Connection\nI\/O Model -> Efficient I\/O\nSession -> Connection State\nBuffer -> Stream Data Management\nPacket -> Protocol Data\nHandler -> Request Routing\nGame Logic -> Business Rules\nGame State -> Runtime State\nDatabase -> Persistent Data<\/code><\/pre>\n\n\n\n
\n\n\n\n
IOCP<\/h1>\n\n\n\n
WSARecv() -> Windows -> Async I\/O -> I\/O Completion -> IOCP -> GetQueuedCompletionStatus() -> Worker -> Session -> Packet<\/code><\/pre>\n\n\n\n
epoll<\/h1>\n\n\n\n
Socket -> epoll_ctl() -> epoll -> epoll_wait() -> Readiness Event -> recv() \/ send() -> Session -> Packet<\/code><\/pre>\n\n\n\n
libuv<\/h1>\n\n\n\n
Application -> libuv -> Event Loop -> Platform I\/O -> Callback -> Packet<\/code><\/pre>\n\n\n\n
\n\n\n\n
\ud575\uc2ec \ud750\ub984<\/h1>\n\n\n\n
\uacb0\uad6d \uc774 \uae00\uc5d0\uc11c \uac00\uc7a5 \uc911\uc694\ud55c \ud750\ub984\uc740 \uc774\uac83\uc774\ub2e4.<\/p>\n\n\n\n
Client -> TCP -> Socket -> I\/O Model -> Session -> Buffer -> Packet -> Handler -> Game Logic -> Game State<\/code><\/pre>\n\n\n\n
\uadf8\ub9ac\uace0 \uc6b4\uc601\uccb4\uc81c\ubcc4 I\/O \ucc98\ub9ac\ub9cc \ubd84\ub9ac\ud558\uba74:<\/p>\n\n\n\n
Windows -> IOCP -> Completion\nLinux -> epoll -> Readiness\nCross Platform -> libuv -> Event Loop -> Platform I\/O<\/code><\/pre>\n\n\n\n
\uc11c\ubc84\uc758 \uc2e4\ud589 \uad6c\uc870\uae4c\uc9c0 \ud3ec\ud568\ud558\uba74:<\/p>\n\n\n\n
Network I\/O -> Packet -> Queue -> Game Thread -> Game State<\/code><\/pre>\n\n\n\n
IOCP\uc640 epoll\uc740 \uc11c\ubc84 \uadf8 \uc790\uccb4\uac00 \uc544\ub2c8\ub2e4.<\/strong><\/p>\n\n\n\n
IOCP \/ epoll -> I\/O \ucc98\ub9ac\nSession -> \uc5f0\uacb0 \uad00\ub9ac\nBuffer -> Stream \uad00\ub9ac\nPacket -> Protocol \ucc98\ub9ac\nQueue -> Thread \uac04 \uc791\uc5c5 \uc804\ub2ec\nGame Logic -> \uc2e4\uc81c \uac8c\uc784 \ucc98\ub9ac\nGame State -> \uac8c\uc784 \uc0c1\ud0dc \uad00\ub9ac<\/code><\/pre>\n\n\n\n
\uacb0\uad6d \uc11c\ubc84 \uac1c\ubc1c\uc5d0\uc11c \ubd10\uc57c \ud560 \ud575\uc2ec \ud750\ub984\uc740 \ub2e4\uc74c \ud558\ub098\ub85c \uc555\ucd95\ub41c\ub2e4.<\/p>\n\n\n\n
Client -> Network I\/O -> Session -> Buffer -> Packet -> Queue -> Game Logic -> Game State -> Response -> Client<\/code><\/pre>\n\n\n\n
\uc774 \uad6c\uc870\ub97c \uc7a1\uc544\ub450\uba74 IOCP, epoll, libuv\uac00 \uc11c\ub85c \ub2e4\ub978 \uae30\uc220\uc784\uc5d0\ub3c4 \uc11c\ubc84 \uc804\uccb4\uc5d0\uc11c \uc815\ud655\ud788 \uc5b4\ub290 \uc704\uce58\uc5d0 \uc874\uc7ac\ud558\ub294\uc9c0<\/strong>\uac00 \uba85\ud655\ud574\uc9c4\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"
\uc11c\ubc84\uc758 \ubcf8\uc9c8\uc740 \uacb0\uad6d \uc694\uccad\uc744 \ubc1b\uace0, \ucc98\ub9ac\ud558\uace0, \uc751\ub2f5\ud558\ub294 \uac83\uc774\ub2e4. \uc5ec\uae30\uc5d0 \uc5ec\ub7ec \ud074\ub77c\uc774\uc5b8\ud2b8\uac00 \ub3d9\uc2dc\uc5d0 \uc811\uc18d\ud558\uba74\uc11c I\/O\ub97c \ud6a8\uc728\uc801\uc73c\ub85c \ucc98\ub9ac\ud574\uc57c \ud558\ub294 \ubb38\uc81c\uac00 \uc0dd\uae34\ub2e4. TCP \uc11c\ubc84 \uae30\ubcf8 \ud750\ub984 Listen Socket\uc740 \uc5f0\uacb0\uc744 \ubc1b\ub294 \uc6a9\ub3c4\uc774\uace0, \uc2e4\uc81c \ud1b5\uc2e0\uc740 Client Socket\uc744 \ud1b5\ud574 \uc774\ub8e8\uc5b4\uc9c4\ub2e4. TCP\uc640 Packet \ucc98\ub9ac TCP\ub294 Packet \ub2e8\uc704\uac00 \uc544\ub2c8\ub77c Byte Stream\uc73c\ub85c \ub370\uc774\ud130\ub97c \uc804\ub2ec\ud55c\ub2e4. \ud558\ub098\uc758 Send\uac00 \ud558\ub098\uc758 Receive\ub85c \ub300\uc751\ub41c\ub2e4\ub294 \ubcf4\uc7a5\uc740 \uc5c6\ub2e4. \uc5ec\ub7ec Packet\uc774 \ud558\ub098\uc758 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[49],"tags":[],"class_list":["post-1663","post","type-post","status-publish","format-standard","hentry","category-server"],"_links":{"self":[{"href":"https:\/\/wayhope.kro.kr\/index.php?rest_route=\/wp\/v2\/posts\/1663","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wayhope.kro.kr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wayhope.kro.kr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wayhope.kro.kr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wayhope.kro.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1663"}],"version-history":[{"count":3,"href":"https:\/\/wayhope.kro.kr\/index.php?rest_route=\/wp\/v2\/posts\/1663\/revisions"}],"predecessor-version":[{"id":1950,"href":"https:\/\/wayhope.kro.kr\/index.php?rest_route=\/wp\/v2\/posts\/1663\/revisions\/1950"}],"wp:attachment":[{"href":"https:\/\/wayhope.kro.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1663"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wayhope.kro.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1663"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wayhope.kro.kr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1663"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}