// Copyright 2009 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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// +build aix darwin dragonfly freebsd js,wasm linux nacl netbsd openbsd solaris windows
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package poll
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import (
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"io"
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"syscall"
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)
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// eofError returns io.EOF when fd is available for reading end of
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// file.
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func (fd *FD) eofError(n int, err error) error {
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if n == 0 && err == nil && fd.ZeroReadIsEOF {
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return io.EOF
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}
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return err
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}
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// Fchmod wraps syscall.Fchmod.
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func (fd *FD) Fchmod(mode uint32) error {
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if err := fd.incref(); err != nil {
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return err
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}
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defer fd.decref()
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return syscall.Fchmod(fd.Sysfd, mode)
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}
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// Fchown wraps syscall.Fchown.
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func (fd *FD) Fchown(uid, gid int) error {
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if err := fd.incref(); err != nil {
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return err
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}
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defer fd.decref()
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return syscall.Fchown(fd.Sysfd, uid, gid)
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}
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// Ftruncate wraps syscall.Ftruncate.
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func (fd *FD) Ftruncate(size int64) error {
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if err := fd.incref(); err != nil {
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return err
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}
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defer fd.decref()
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return syscall.Ftruncate(fd.Sysfd, size)
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}
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