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在golang中传递网络socket
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| package main | |
| import ( | |
| "fmt" | |
| "net" | |
| "os" | |
| "bufio" | |
| ) | |
| func main() { | |
| file := os.NewFile(uintptr(3), "tcp") // 0,1,2是标准输入，输出，错误输出。传进来的fd从3开始 | |
| c, err := net.FileConn(file) | |
| if err != nil { | |
| fmt.Println(err) | |
| } | |
| file.Close() | |
| writer := bufio.NewWriter(c) | |
| writer.WriteString("hello world\n") | |
| writer.Flush() | |
| c.Close() | |
| } |
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| package main | |
| import ( | |
| "fmt" | |
| "net" | |
| "syscall" | |
| "os" | |
| ) | |
| func listen() { | |
| ln, err := net.Listen("tcp", ":9999") | |
| if err != nil { | |
| panic(err) | |
| } | |
| tcpln := ln.(*net.TCPListener) | |
| for { | |
| c, err := tcpln.AcceptTCP() | |
| if err != nil { | |
| fmt.Println(err) | |
| break | |
| } | |
| if err != nil { | |
| fmt.Println(err) | |
| break | |
| } | |
| go handleConn(c) | |
| } | |
| } | |
| func handleConn(c *net.TCPConn) { | |
| file, _ := c.File() | |
| defer file.Close() | |
| defer c.Close() | |
| syscall.CloseOnExec(int(file.Fd())) // 设置关闭文件只对当前进程有效 | |
| allFiles := []*os.File{os.Stdin, os.Stdout, os.Stderr, file, nil} | |
| wd, _ := os.Getwd() | |
| _, err := os.StartProcess("s", nil, &os.ProcAttr{ | |
| Dir: wd, | |
| Files: allFiles, | |
| }) | |
| if err != nil { | |
| fmt.Println(err) | |
| } | |
| } | |
| func main() { | |
| listen() | |
| } |
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