104 lines
1.7 KiB
Go
104 lines
1.7 KiB
Go
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package manager
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import (
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"bufio"
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"context"
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"encoding/json"
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"fmt"
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"log"
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"time"
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"git.godopu.net/lab/etri-smartfarm-poc-controller-serial/puserial"
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"github.com/jacobsa/go-serial/serial"
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"github.com/rjeczalik/notify"
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)
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var ctx context.Context
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var cancel context.CancelFunc
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var ch_discover chan notify.EventInfo
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var _managerObj *_manager
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func init() {
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ctx, cancel = context.WithCancel(context.Background())
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ch_discover = make(chan notify.EventInfo)
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_managerObj = &_manager{
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devices: map[string]*_device{},
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SyncListener: nil,
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RecvListener: nil,
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}
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}
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func Close() {
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cancel()
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}
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func register(iface string) {
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fmt.Println("Handle] ", iface)
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// change permission
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err := ChangePermission(iface)
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if err != nil {
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panic(err)
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}
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// Set up options.
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options := serial.OpenOptions{
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PortName: iface,
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BaudRate: 9600,
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DataBits: 8,
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StopBits: 1,
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MinimumReadSize: 16,
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}
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// Open the port.
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port, err := serial.Open(options)
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if err != nil {
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log.Fatalf("serial.Open: %v", err)
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}
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// Make sure to close it later.
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defer port.Close()
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reader := bufio.NewReader(port)
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dev := &_device{}
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for {
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b, _, _ := reader.ReadLine()
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err := json.Unmarshal(b, &dev)
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if err != nil {
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continue
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}
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fmt.Println(dev)
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port.Write([]byte{200})
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time.Sleep(time.Second)
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break
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}
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// var data string
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}
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func Run() error {
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iface, err := puserial.InitDevice()
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if err != nil {
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if err.Error() != "USB Not found" {
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return err
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}
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} else {
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// _managerObj.onAdd(iface)
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register(iface)
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}
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go puserial.WatchNewDevice(ctx, ch_discover)
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for {
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e, ok := <-ch_discover
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if !ok {
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log.Println("manager exit")
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return nil
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}
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register(e.Path())
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}
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}
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