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//
// Copyright 2014-2018 Cristian Maglie. All rights reserved.
// Copyright 2019-2022 Veniamin Albaev <albenik@gmail.com>.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//
//go:build (linux && !android) || darwin || freebsd || openbsd
package serial
import (
"go.uber.org/multierr"
"golang.org/x/sys/unix"
)
func accquireExclusiveAccess(h int) error {
return unix.IoctlSetInt(h, unix.TIOCEXCL, 0)
}
func (p *Port) closeAndReturnError(code PortErrorCode, err error) *PortError {
return &PortError{
code: code,
wrapped: multierr.Combine(
err,
unix.IoctlSetInt(p.internal.handle, unix.TIOCNXCL, 0),
unix.Close(p.internal.handle),
),
}
}
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