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Nick Hill 5384bbcf85 Epoll: Don't wake event loop when splicing (#9354)
Motivation

I noticed this while looking at something else.
AbstractEpollStreamChannel::spliceQueue is an MPSC queue but only
accessed from the event loop. So it could be just changed to e.g. an
ArrayDeque. This PR instead reverts to using is as an MPSC queue to
avoid dispatching a task to the EL, as appears was the original
intention.

Modification

Change AbstractEpollStreamChannel::spliceQueue to be volatile and lazily
initialized via double-checked locking. Add tasks directly to the queue
from the public methods rather than possibly waking the EL just to
enqueue.

An alternative is just to change PlatformDependent.newMpscQueue() to new
ArrayDeque() and be done with it :)

Result

Less disruptive channel/fd-splicing.
2019-07-12 18:06:26 +02:00
.github Change the netty.io homepage scheme(http -> https) (#9344) 2019-07-09 21:09:42 +02:00
.mvn support publishing snapshots from docker based ci (#8634) 2018-12-07 05:43:06 +01:00
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bom Change the netty.io homepage scheme(http -> https) (#9344) 2019-07-09 21:09:42 +02:00
buffer Correctly take length of ByteBufInputStream into account for readLine… (#9310) 2019-07-01 20:55:23 +02:00
codec Change the netty.io homepage scheme(http -> https) (#9344) 2019-07-09 21:09:42 +02:00
codec-dns Pre-decompressed DNS record RData that may contain compression pointers (#9311) 2019-07-02 19:38:50 +02:00
codec-haproxy [maven-release-plugin] prepare for next development iteration 2019-06-28 05:57:21 +00:00
codec-http Fixed incorrect Sec-WebSocket-Origin header for v13, see #9134 (#9312) 2019-07-12 12:05:39 +02:00
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codec-smtp optimize some code (#9289) 2019-06-28 13:48:23 +02:00
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example feat(example-mqtt): new MQTT heartBeat broker and client examples (#9336) 2019-07-10 12:19:15 +02:00
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license Use Table lookup for HPACK decoder (#9307) 2019-07-02 20:09:44 +02:00
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transport #7285 Improved "Discarded inbound message" warning (#9286) 2019-07-01 20:38:58 +02:00
transport-native-epoll Epoll: Don't wake event loop when splicing (#9354) 2019-07-12 18:06:26 +02:00
transport-native-kqueue Change the netty.io homepage scheme(http -> https) (#9344) 2019-07-09 21:09:42 +02:00
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transport-udt Remove unnecessary code (#9303) 2019-07-04 08:51:47 +02:00
.fbprefs Updated Find Bugs configuration 2009-03-04 10:33:09 +00:00
.gitattributes Include mvn wrapper to make setup of development env easier 2018-01-26 08:13:17 +01:00
.gitignore Add .gitignore for docker-sync stuff 2019-03-19 14:03:15 +01:00
CONTRIBUTING.md Change the netty.io homepage scheme(http -> https) (#9344) 2019-07-09 21:09:42 +02:00
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pom.xml Change the netty.io homepage scheme(http -> https) (#9344) 2019-07-09 21:09:42 +02:00
run-example.sh Add UptimeServer and adjust UptimeClient's code style. 2017-04-28 07:41:07 +02:00

README.md

Netty Project

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients.

How to build

For the detailed information about building and developing Netty, please visit the developer guide. This page only gives very basic information.

You require the following to build Netty:

Note that this is build-time requirement. JDK 5 (for 3.x) or 6 (for 4.0+) is enough to run your Netty-based application.

Branches to look

Development of all versions takes place in each branch whose name is identical to <majorVersion>.<minorVersion>. For example, the development of 3.9 and 4.0 resides in the branch '3.9' and the branch '4.0' respectively.

Usage with JDK 9

Netty can be used in modular JDK9 applications as a collection of automatic modules. The module names follow the reverse-DNS style, and are derived from subproject names rather than root packages due to historical reasons. They are listed below:

  • io.netty.all
  • io.netty.buffer
  • io.netty.codec
  • io.netty.codec.dns
  • io.netty.codec.haproxy
  • io.netty.codec.http
  • io.netty.codec.http2
  • io.netty.codec.memcache
  • io.netty.codec.mqtt
  • io.netty.codec.redis
  • io.netty.codec.smtp
  • io.netty.codec.socks
  • io.netty.codec.stomp
  • io.netty.codec.xml
  • io.netty.common
  • io.netty.handler
  • io.netty.handler.proxy
  • io.netty.resolver
  • io.netty.resolver.dns
  • io.netty.transport
  • io.netty.transport.epoll (native omitted - reserved keyword in Java)
  • io.netty.transport.kqueue (native omitted - reserved keyword in Java)
  • io.netty.transport.unix.common (native omitted - reserved keyword in Java)
  • io.netty.transport.rxtx
  • io.netty.transport.sctp
  • io.netty.transport.udt

Automatic modules do not provide any means to declare dependencies, so you need to list each used module separately in your module-info file.