Source file src/internal/poll/fcntl_syscall.go

Documentation: internal/poll

     1  // Copyright 2019 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  //go:build dragonfly || freebsd || linux || netbsd || openbsd
     6  // +build dragonfly freebsd linux netbsd openbsd
     7  
     8  package poll
     9  
    10  import (
    11  	"internal/syscall/unix"
    12  	"syscall"
    13  )
    14  
    15  func fcntl(fd int, cmd int, arg int) (int, error) {
    16  	r, _, e := syscall.Syscall(unix.FcntlSyscall, uintptr(fd), uintptr(cmd), uintptr(arg))
    17  	if e != 0 {
    18  		return int(r), syscall.Errno(e)
    19  	}
    20  	return int(r), nil
    21  }
    22  

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