http

README

Clone of http.ListenAndServe

Exercise of syscall and async I/O

Usage

Start Server

$ cd internal/example
$ cat main.go
package main

import (
        "fmt"

        "github.com/arailly/go-http-clone"
)

func main() {
        http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
                w.Write([]byte("Hello World\n"))
        })
        fmt.Println(http.ListenAndServe(":8080", nil))
}

$ go run main.go

Test

$ curl -i localhost:8080
HTTP/1.1 200
Content-Length: 11

Hello World

Features

1. Use syscall instead of net or net/http package
2. Asynchronous I/O with epoll

Limitations

• GET only
  • other methods and request body is not available :)
• Headers are not available.
• Although I/O will not be blocked, user-defined handler will be blocked when accessed simultaneously.

Documentation

Index

• Constants
• func HandleFunc(pattern string, handler func(ResponseWriter, *Request))
• func ListenAndServe(addr string, handler Handler) error
• type Handler
• type Header
• type Request
• type ResponseWriter

Constants

const (
	StatusOK = 200
)

Functions

func HandleFunc

func HandleFunc(pattern string, handler func(ResponseWriter, *Request))

func ListenAndServe

func ListenAndServe(addr string, handler Handler) error

Types

type Handler

type Handler interface {
	ServeHTTP(ResponseWriter, *Request)
}

type Header

type Header map[string][]string

type Request

type Request struct {
	Method string // only GET available
	// contains filtered or unexported fields
}

TODO: Method, URL, Proto, Header, Body

type ResponseWriter

type ResponseWriter interface {
	Write([]byte) (int, error)
	WriteHeader(statusCode int)
}