https://github.com/hslam/sendfile

Package sendfile wraps the sendfile system call.
https://github.com/hslam/sendfile

darwin go golang linux sendfile socket unix windows zero-copy zerocopy

Last synced: 5 days ago
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Package sendfile wraps the sendfile system call.

• Host: GitHub
• URL: https://github.com/hslam/sendfile
• Owner: hslam
• License: mit
• Created: 2020-11-17T16:14:48.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2023-11-14T12:56:10.000Z (over 1 year ago)
• Last Synced: 2025-03-30T11:32:44.652Z (about 1 month ago)
• Topics: darwin, go, golang, linux, sendfile, socket, unix, windows, zero-copy, zerocopy
• Language: Go
• Homepage:
• Size: 21.5 KB
• Stars: 10
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# sendfile

[![PkgGoDev](https://pkg.go.dev/badge/github.com/hslam/sendfile)](https://pkg.go.dev/github.com/hslam/sendfile)

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[![codecov](https://codecov.io/gh/hslam/sendfile/branch/master/graph/badge.svg)](https://codecov.io/gh/hslam/sendfile)

[![Go Report Card](https://goreportcard.com/badge/github.com/hslam/sendfile)](https://goreportcard.com/report/github.com/hslam/sendfile)

[![LICENSE](https://img.shields.io/github/license/hslam/sendfile.svg?style=flat-square)](https://github.com/hslam/sendfile/blob/master/LICENSE)

Package sendfile wraps the sendfile system call.

## Get started

### Install

```

go get github.com/hslam/sendfile

```

### Import

```

import "github.com/hslam/sendfile"

```

### Usage

#### Example

```go

package main

import (

	"fmt"

	"github.com/hslam/sendfile"

	"net"

	"os"

)

func main() {

	srcName := "srcfile"

	srcFile, err := os.Create(srcName)

	if err != nil {

		panic(err)

	}

	defer os.Remove(srcName)

	defer srcFile.Close()

	contents := "Hello world"

	srcFile.Write([]byte(contents))

	lis, err := net.Listen("tcp", ":9999")

	if err != nil {

		panic(err)

	}

	defer lis.Close()

	done := make(chan bool)

	go func() {

		conn, _ := lis.Accept()

		defer conn.Close()

		buf := make([]byte, len(contents))

		n, _ := conn.Read(buf)

		fmt.Println(string(buf[:n]))

		close(done)

	}()

	conn, _ := net.Dial("tcp", "127.0.0.1:9999")

	if _, err = sendfile.SendFile(conn, int(srcFile.Fd()), 0, int64(len(contents))); err != nil {

		fmt.Println(err)

	}

	conn.Close()

	<-done

}

```

### Output

```

Hello world

```

### License

This package is licensed under a MIT license (Copyright (c) 2020 Meng Huang)

### Author

sendfile was written by Meng Huang.