Beispiel #1
0
func (this *rnode) rinsert(topic []byte, msg *message.PublishMessage) error {
	// If there's no more topic levels, that means we are at the matching rnode.
	if len(topic) == 0 {
		l := msg.Len()

		// Let's reuse the buffer if there's enough space
		if l > cap(this.buf) {
			this.buf = make([]byte, l)
		} else {
			this.buf = this.buf[0:l]
		}

		if _, err := msg.Encode(this.buf); err != nil {
			return err
		}

		// Reuse the message if possible
		if this.msg == nil {
			this.msg = message.NewPublishMessage()
		}

		if _, err := this.msg.Decode(this.buf); err != nil {
			return err
		}

		return nil
	}

	// Not the last level, so let's find or create the next level snode, and
	// recursively call it's insert().

	// ntl = next topic level
	ntl, rem, err := nextTopicLevel(topic)
	if err != nil {
		return err
	}

	level := string(ntl)

	// Add snode if it doesn't already exist
	n, ok := this.rnodes[level]
	if !ok {
		n = newRNode()
		this.rnodes[level] = n
	}

	return n.rinsert(rem, msg)
}
Beispiel #2
0
func (this *Session) RetainMessage(msg *message.PublishMessage) error {
	this.mu.Lock()
	defer this.mu.Unlock()

	this.rbuf = make([]byte, msg.Len())
	this.Retained = message.NewPublishMessage()

	if _, err := msg.Encode(this.rbuf); err != nil {
		return err
	}

	if _, err := this.Retained.Decode(this.rbuf); err != nil {
		return err
	}

	return nil
}