Netty4.x
- 1. Netty4.x asynchronous event-driven network application framework 蟾 http://gmind7.github.io Java Software Developer
- 2. Contents ろ磯? 企欧碁 る覈 螳覦蟲煙 螳覦蟲 螳覦ろ
- 3. ろ磯? 螳旧螳 蟲煙 旧貉危 - 企欧碁 - 危殊
- 4. 覦 ろ語 危襴貅伎 觜蠍 企伎 企欧 蠍磯 tomcat < 10,000 (connection) VS netty < 100,000 ~ 1,000,000 (connection) I/O 豌襴襯 豢 API 螻 NIO, OIO, AIO 豌襴 所 所 覦蠖 蟆 Netty I/O API 螻 企欧 覈瑚骸 る 覈 螻 襷崎, 一危磯ゼ 覲企願 覦螻, 企 企欧瑚 覦讌 Netty螳 螻 貊螳 企 る 語 ろ 讌, 覿 蠍壱 覦讌..焔 Netty螳 螻 壱 企欧 豌襴 bi-directional chain of responsibility pattern 讌 蟲 覯狩 伎 焔 伎 螻 Buffer Zero-file-copy, Buffer Automatic Capacity Extession ろ磯?
- 5. 蟲煙 - I/O 伎 (Netty), 襦貊 貊 (Netty or User), 觜讌る讌 (User) Buffers I/O Abstraction Channels, Event Loops, and Pilelines TCP UDP In-VM Event Handlers Codec Framework HTTP Custom EventHandlers & Codecs Business Logic Handler Core Transports SSL SPDY User Code ろ磯?
- 6. 旧貉危(eventloop, pipeline) eventloop (Windows event dispatcher, Swing event loop, Reactor) Is Eventloop ? (single thread) tasks User I/O taskYES NO task Queue (Scheduling) Execute (pipeline call) ろ磯?
- 7. 旧貉危(eventloop, pipeline) pipeline (企欧碁 企欧碁ゼ 覦 碁る ) eventloop 2 protocol decoder protocol encoder business logic 3 4 : 1 > 2 > 4 ′ : 4 > 3 > 1 1 pipeline (bi-directional chain of responsibility pattern) * inbound event - 企欧 襭螳 覦 企欧 (貅郁屋, 一危一 )襯 燕 inbound event handler蟆 * outbound event - 螳 豌 (郁鍵, 所鍵 殊譴 ) 燕 outbound event handler蟆 - 豕譬朱 企欧 襭 I/O螳 襦 . ろ磯?
- 8. 旧襦 ろ磯? eventloop 1 2 pipeline context 3 4 handler 1 1 1 n 1 n
- 9. 企欧 覈 蠍一ヾ 企欧 覈 企欧 覈
- 10. 蠍一ヾ 企欧 覈 (螳豌危語) 企欧碁 企欧 覈 (覃語) Channel DisConnectedChannel UnboundChannel Closed Message Event(in,out) Channel ConnectedChannel boundChannel Open Flush (Messag Event豌)Channel InActiveChannel Unregistered InboundBufferUpdatedChannel ActiveChannel Registered 覯殊 一危磯ゼ 豈 Flush 豌 れ I/O 旧螳レ 旧覿螳 * UserEventTriggered 覃 豢螳
- 11. る覈
- 12. 企欧 襭 炎 る襦 ろ 伎 觜蠍 豌 蟆郁骸 給慨 企欧 襭 る 企伎 碁る 覃襯 語 螳 語 伎 happens-before 蟯螻 焔 @Sharable 螳 覿 讌 蟆曙 碁る 覃襯 語 讌 る覈 eventloop (single thread) pipeline handler method method happens-before volatile () ChannelFuture<T> handler 語(X)
- 13. 螳覦 蟲煙 旧貉危 企るれ伎願係 API れ 蟲 覦危碁
- 14. Bootstrap Bootstrap : Client-side Channel襯 譯手 襦 郁屋 Helper Class ServerBootstrap : Server-side Channel襯 譯手 襦 郁屋 Helper Class 覿覈豈 郁屋 覦譯手, 炎概朱 bound 伎 client郁屋 豈 EventLoop EventLoop : SingleThread Channel Seletor (OioEventLoop, Nio, Epoll..) EventLoopGroup : MultiThread Channel Seletor (OioEvnetLoopGroup, Nio, Epoll) Channel NioSocketChannel, OioSocketChannel, EpollSocketChannel NioServerSocketChannel, OioServerSocketChannel, EpollServerSocketChannel ChannelOption SO_KEEPALIVE, SO_SNDBUF, SO_RCVBUF, SO_TIMEOUT, SO_BACKLOG. ChannelFuture Channel I/O Operations 襭 蟆郁骸襯 覦 Future 螳豌 螳覦蟲煙 (旧貉危)
- 15. ChannelHandler InboundHandler, OutBoundHandler 讌 Channel I/O Operations Event 豌襴襯 Handler Method襯 讌 ByteBuf (dynamic buffer) UnPooledDirectByteBuf, UnPooledHeapByteBuf, UnPooledUnsafeDirectByteBuf, PooledDirectByteBuf, PooledHeapByteBuf, PooledUnsafeDirectByteBuf, CompositeByteBuf. 螳覦蟲煙 (旧貉危)
- 16. EventLoop And EventExecutor 螳覦蟲煙 (企るれ伎願係)
- 17. NIO,OIO Channel 螳覦蟲煙 (企るれ伎願係)
- 19. 螳覦蟲煙 (API れ蟲譟)
- 20. 螳覦蟲 ChannelHandler (event, codec) Client Run (bootstrap) Server Run (ServerBootstrap) Bytebuf
- 21. ChannelHandler (event) Flush Channel InActive Channel Unregistered InboundBufferUpdated Channel Active Channel Registered 螳覦蟲
- 22. ChannelHandler (decoder, encoder) 螳覦蟲
- 23. Client Run 螳覦蟲
- 24. Sever Run 螳覦蟲
- 25. Bytebuf 螳覦蟲
- 26. Bytebuf 螳覦蟲
- 29. Reference Site http://deview.kr/2012/xe/index.php?mid=track&document_srl=379&time_srl=276 http://normanmaurer.me/presentations/2014-facebook-eng-netty/slides.html http://www.youtube.com/watch?v=_GRIyCMNGGI http://hongweiyi.com/2014/01/