github.com/shogo82148/std@v1.22.1-0.20240327122250-4e474527810c/os/exec/internal/fdtest/exists_unix.go (about)

     1  // Copyright 2021 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 unix || wasm
     6  
     7  // Package fdtest provides test helpers for working with file descriptors across exec.
     8  package fdtest
     9  
    10  // Exists returns true if fd is a valid file descriptor.
    11  func Exists(fd uintptr) bool