forked from quic-go/quic-go
c2131eb595
* qlog: implement a Trace and a Writer struct * qlog: rename Trace to FileSeq * split qlog trace writer and QUIC qlog events into separate packages * use the new qlog.Recorder instead of the logging.ConnectionTracer
51 lines
1.2 KiB
Go
51 lines
1.2 KiB
Go
package qlogwriter
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import (
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"time"
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"github.com/quic-go/quic-go/qlogwriter/jsontext"
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)
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func milliseconds(dur time.Duration) float64 { return float64(dur.Nanoseconds()) / 1e6 }
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// Event represents a qlog event that can be encoded to JSON.
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// Each event must provide its name and a method to encode itself using a jsontext.Encoder.
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type Event interface {
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// Name returns the name of the event, as it should appear in the qlog output
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Name() string
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// Encode writes the event's data to the provided jsontext.Encoder
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Encode(*jsontext.Encoder) error
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}
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type event struct {
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RelativeTime time.Duration
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Event
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}
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type encoderHelper struct {
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enc *jsontext.Encoder
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err error
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}
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func (h *encoderHelper) WriteToken(t jsontext.Token) {
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if h.err != nil {
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return
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}
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h.err = h.enc.WriteToken(t)
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}
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func (e *event) Encode(enc *jsontext.Encoder) error {
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h := encoderHelper{enc: enc}
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h.WriteToken(jsontext.BeginObject)
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h.WriteToken(jsontext.String("time"))
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h.WriteToken(jsontext.Float(milliseconds(e.RelativeTime)))
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h.WriteToken(jsontext.String("name"))
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h.WriteToken(jsontext.String(e.Name()))
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h.WriteToken(jsontext.String("data"))
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if err := e.Event.Encode(enc); err != nil {
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return err
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}
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h.WriteToken(jsontext.EndObject)
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return h.err
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}
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