Source File
	exists_unix.go

Belonging Package
	os/exec/internal/fdtest

// Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build unix || wasm

// Package fdtest provides test helpers for working with file descriptors across exec.
package fdtest

import (
	"syscall"
)

// Exists returns true if fd is a valid file descriptor.
func Exists(fd uintptr) bool {
	var s syscall.Stat_t
	err := syscall.Fstat(int(fd), &s)
	return err != syscall.EBADF
}

The pages are generated with Golds v0.7.9-preview. (GOOS=linux GOARCH=amd64)
Golds is a Go 101 project developed by Tapir Liu.
PR and bug reports are welcome and can be submitted to the issue list.
Please follow @zigo_101 (reachable from the left QR code) to get the latest news of Golds.