The current FLowControlHandler keeps a flag to track whether a read() call is pending. This could lead to a scenario where you call read multiple times when the queue is empty, and when the FlowControlHandler Queue starts getting messages, channelRead will be fired only once, when we should've fired x many times, once for each time the handlers downstream called read(). Modifications: Minor change to replace the boolean flag with a counter and adding a unit test for this scenario. Result: I used TDD, so I wrote the test, made sure it's failing, then updated the code and re-ran the test to make sure it's successful after the changes. Co-authored-by: Kareem Ali <kali@localhost.localdomain>
Netty Project
Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients.
Links
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:
- Latest stable Oracle JDK 7
- Latest stable Apache Maven
- If you are on Linux, you need additional development packages installed on your system, because you'll build the native transport.
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.