Function AddTraceEvent

internal/channelz/trace.go:195–213

AddTraceEvent adds trace related to the entity with specified id, using the provided TraceEventDesc. If channelz is not turned ON, this will simply log the event descriptions.

(l grpclog.DepthLoggerV2, e Entity, depth int, desc *TraceEvent)

//
// If channelz is not turned ON, this will simply log the event descriptions.
func AddTraceEvent(l grpclog.DepthLoggerV2, e Entity, depth int, desc *TraceEvent) {
	// Log only the trace description associated with the bottom most entity.
	d := fmt.Sprintf("[%s] %s", e, desc.Desc)
	switch desc.Severity {
	case CtUnknown, CtInfo:
		l.InfoDepth(depth+1, d)
	case CtWarning:
		l.WarningDepth(depth+1, d)
	case CtError:
		l.ErrorDepth(depth+1, d)
	}

	if getMaxTraceEntry() == 0 {
		return
	}
	if IsOn() {
		db.traceEvent(e.id(), desc)
	}
}