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87 lines
1.5 KiB
87 lines
1.5 KiB
package main
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import (
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"bufio"
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"flag"
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"fmt"
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"os"
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"reflect"
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)
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func main() {
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filename := flag.String("f", "", "Candump filename")
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canbus := flag.String("c", "", "CAN bus interface")
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all := flag.Bool("a", false, "Show all packets")
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flag.Parse()
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var frames <-chan *CanFrame
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last := make(map[interface{}]interface{})
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switch {
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case len(*filename) > 0:
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fmt.Printf("Open file %v\n", *filename)
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frames = readfile(filename)
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case len(*canbus) > 0:
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fmt.Printf("Open device %v\n", canbus)
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var err error
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frames, err = StartCan(*canbus)
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if err != nil {
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fmt.Println(err)
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return
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}
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default:
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flag.Usage()
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}
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if frames == nil {
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fmt.Println("Get no data")
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os.Exit(0)
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}
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events := FromCanFrames(frames)
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for event := range events {
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eventType := reflect.TypeOf(event)
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lastValue := last[eventType]
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value, date := event.GetValue()
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if lastValue != value || *all {
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fmt.Printf("%v | %s = %v\n", *date, eventType, value)
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last[eventType] = value
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}
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//if msg, isType := event.(MaximumBatteryVoltage); isType {
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// fmt.Printf("MaximumBatteryVoltage: %v\n", msg.GetMaxBattVoltage())
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//}
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}
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}
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func readfile(filename *string) <-chan *CanFrame {
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c := make(chan *CanFrame)
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go func() {
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defer close(c)
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file, err := os.Open(*filename)
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if err != nil {
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fmt.Println(err)
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return
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}
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defer file.Close()
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scanner := bufio.NewScanner(file)
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for scanner.Scan() {
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text := scanner.Text()
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c <- FromString(&text)
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}
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if err := scanner.Err(); err != nil {
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fmt.Println(err)
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}
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}()
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return c
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}
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