59 lines
945 B
Go
59 lines
945 B
Go
package gotelem
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import (
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"encoding/json"
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"fmt"
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"os"
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"time"
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"github.com/kschamplin/gotelem/skylab"
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)
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// CanWriter
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type CanWriter struct {
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output *os.File
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cd CANDumpEntry
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jsonBuf []byte
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}
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// send writes the frame to the file.
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func (cw *CanWriter) Send(f *Frame) (err error) {
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cw.cd.Timestamp = float64(time.Now().Unix())
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cw.cd.Id = uint64(f.Id)
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cw.cd.Data, err = skylab.FromCanFrame(f.Id, f.Data)
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if err != nil {
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return
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}
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out, err := json.Marshal(cw.cd)
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if err != nil {
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return
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}
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fmt.Fprintln(cw.output, string(out))
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return err
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}
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func (cw *CanWriter) Close() error {
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return cw.output.Close()
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}
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func OpenCanWriter(name string) (*CanWriter, error) {
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f, err := os.Create(name)
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if err != nil {
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return nil, err
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}
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cw := &CanWriter{
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output: f,
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}
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return cw, nil
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}
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type CANDumpEntry struct {
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Timestamp float64 `json:"ts"`
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Id uint64 `json:"id"`
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Data skylab.Packet `json:"data"`
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}
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