mirror of https://github.com/golang/go.git
20 lines
479 B
Go
20 lines
479 B
Go
// Copyright 2021 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//go:build unix
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// Package fdtest provides test helpers for working with file descriptors across exec.
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package fdtest
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import (
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"syscall"
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)
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// Exists returns true if fd is a valid file descriptor.
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func Exists(fd uintptr) bool {
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var s syscall.Stat_t
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err := syscall.Fstat(int(fd), &s)
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return err != syscall.EBADF
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}
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