Function RegisterChannel

internal/channelz/funcs.go:117–137

RegisterChannel registers the given channel c in the channelz database with target as its target and reference name, and adds it to the child list of its parent. parent == nil means no parent. Returns a unique channelz identifier assigned to this channel. If channelz is not turned ON, the channel

(parent *Channel, target string)

//
// If channelz is not turned ON, the channelz database is not mutated.
func RegisterChannel(parent *Channel, target string) *Channel {
	id := IDGen.genID()

	if !IsOn() {
		return &Channel{ID: id}
	}

	isTopChannel := parent == nil

	cn := &Channel{
		ID:          id,
		RefName:     target,
		nestedChans: make(map[int64]string),
		subChans:    make(map[int64]string),
		Parent:      parent,
		trace:       &ChannelTrace{CreationTime: time.Now(), Events: make([]*traceEvent, 0, getMaxTraceEntry())},
	}
	cn.ChannelMetrics.Target.Store(&target)
	db.addChannel(id, cn, isTopChannel, cn.getParentID())
	return cn
}

// RegisterSubChannel registers the given subChannel c in the channelz database
// with ref as its reference name, and adds it to the child list of its parent