54 lines
968 B
Go
54 lines
968 B
Go
//
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// Copyright 2014-2016 Cristian Maglie. 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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//
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// +build linux darwin freebsd
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package serial // import "go.bug.st/serial.v1"
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import "syscall"
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// pipe is a small wrapper around unix-pipe syscall functions
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type pipe struct {
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rd int
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wr int
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}
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func newPipe() (*pipe, error) {
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fds := []int{0, 0}
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if err := syscall.Pipe(fds); err != nil {
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return nil, err
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}
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return &pipe{rd: fds[0], wr: fds[1]}, nil
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}
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func (p *pipe) ReadFD() int {
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return p.rd
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}
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func (p *pipe) WriteFD() int {
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return p.wr
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}
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func (p *pipe) Write(data []byte) (int, error) {
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return syscall.Write(p.wr, data)
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}
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func (p *pipe) Read(data []byte) (int, error) {
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return syscall.Read(p.rd, data)
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}
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func (p *pipe) Close() error {
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err1 := syscall.Close(p.rd)
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err2 := syscall.Close(p.wr)
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if err1 != nil {
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return err1
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}
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if err2 != nil {
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return err2
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}
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return nil
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}
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