https://github.com/alberliu/gn

golang epoll实现
https://github.com/alberliu/gn

epoll golang

Last synced: 6 months ago
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golang epoll实现

• Host: GitHub
• URL: https://github.com/alberliu/gn
• Owner: alberliu
• License: mit
• Created: 2020-04-07T06:31:39.000Z (about 5 years ago)
• Default Branch: master
• Last Pushed: 2023-12-20T03:19:34.000Z (over 1 year ago)
• Last Synced: 2024-12-08T21:57:27.105Z (6 months ago)
• Topics: epoll, golang
• Language: Go
• Homepage:
• Size: 2.37 MB
• Stars: 86
• Watchers: 2
• Forks: 52
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# gn

### 简述

gn是一个基于linux下epoll的网络框架，目前只能运行在Linux环境下，gn可以配置处理网络事件的goroutine数量，相比golang原生库，在海量链接下，可以减少goroutine的开销，从而减少系统资源占用。

### 支持功能

1.tcp拆包粘包  

支持多种编解码方式，使用sync.pool申请读写使用的字节数组，减少内存申请开销以及GC压力。  

2.客户端超时踢出  

可以设置超时时间，gn会定时检测超出超时的TCP连接（在指定时间内没有发送数据的连接）,进行释放。

### 使用方式

```go

package main

import (

	"github.com/alberliu/gn"

	"github.com/alberliu/gn/codec"

	"net"

	"strconv"

	"time"

)

var (

	decoder = codec.NewUvarintDecoder()

	encoder = codec.NewUvarintEncoder(1024)

)

var log = gn.GetLogger()

type Handler struct{}

func (*Handler) OnConnect(c *gn.Conn) {

	log.Info("server:connect:", c.GetFd(), c.GetAddr())

}

func (*Handler) OnMessage(c *gn.Conn, bytes []byte) {

	c.WriteWithEncoder(bytes)

	log.Info("server:read:", string(bytes))

}

func (*Handler) OnClose(c *gn.Conn, err error) {

	log.Info("server:close:", c.GetFd(), err)

}

func startServer() {

	server, err := gn.NewServer(":8080", &Handler{},

		gn.WithDecoder(decoder),

		gn.WithEncoder(encoder),

		gn.WithTimeout(5*time.Second),

		gn.WithReadBufferLen(10))

	if err != nil {

		log.Info("err")

		return

	}

	server.Run()

}

```