github.com/JimmyHuang454/JLS-go@v0.0.0-20230831150107-90d536585ba0/internal/poll/sock_cloexec.go (about)

     1  // Copyright 2013 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  // This file implements accept for platforms that provide a fast path for
     6  // setting SetNonblock and CloseOnExec.
     7  
     8  //go:build dragonfly || freebsd || (linux && !arm) || netbsd || openbsd || solaris
     9  
    10  package poll
    11  
    12  import "syscall"
    13  
    14  // Wrapper around the accept system call that marks the returned file
    15  // descriptor as nonblocking and close-on-exec.
    16  func accept(s int) (int, syscall.Sockaddr, string, error) {
    17  	ns, sa, err := Accept4Func(s, syscall.SOCK_NONBLOCK|syscall.SOCK_CLOEXEC)
    18  	if err != nil {
    19  		return -1, sa, "accept4", err
    20  	}
    21  	return ns, sa, "", nil
    22  }