github.com/code-reading/golang@v0.0.0-20220303082512-ba5bc0e589a3/go/src/internal/poll/fcntl_libc.go (about)

     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 aix || darwin || solaris
     6  // +build aix darwin solaris
     7  
     8  package poll
     9  
    10  import _ "unsafe" // for go:linkname
    11  
    12  // Implemented in the syscall package.
    13  //go:linkname fcntl syscall.fcntl
    14  func fcntl(fd int, cmd int, arg int) (int, error)