bufferflow_timedraw.go

package main

import (
	"encoding/json"
	"time"

	log "github.com/sirupsen/logrus"
)

type BufferflowTimedRaw struct {
	Name   string
	Port   string
	Output chan []byte
	Input  chan string
	done   chan bool
	ticker *time.Ticker
}

var (
	bufferedOutputRaw []byte
	sPortRaw          string
)

func (b *BufferflowTimedRaw) Init() {
	log.Println("Initting timed buffer raw flow (output once every 16ms)")
	bufferedOutputRaw = nil
	sPortRaw = ""

	go func() {
		b.ticker = time.NewTicker(16 * time.Millisecond)
		b.done = make(chan bool)
	Loop:
		for {
			select {
			case data := <-b.Input:
				bufferedOutputRaw = append(bufferedOutputRaw, []byte(data)...)
				sPortRaw = b.Port
			case <-b.ticker.C:
				if bufferedOutputRaw != nil {
					m := SpPortMessageRaw{sPortRaw, bufferedOutputRaw}
					buf, _ := json.Marshal(m)
					// data is now encoded in base64 format
					// need a decoder on the other side
					b.Output <- []byte(buf)
					bufferedOutputRaw = nil
					sPortRaw = ""
				}
			case <-b.done:
				break Loop
			}
		}

		close(b.Input)
	}()
}

func (b *BufferflowTimedRaw) BlockUntilReady(cmd string, id string) (bool, bool) {
	//log.Printf("BlockUntilReady() start\n")
	return true, false
}

// not implemented, we are gonna use OnIncomingData
func (b *BufferflowTimedRaw) OnIncomingDataBinary(data []byte) {
}

func (b *BufferflowTimedRaw) OnIncomingData(data string) {
	b.Input <- data
}

// Clean out b.sem so it can truly block
func (b *BufferflowTimedRaw) ClearOutSemaphore() {
}

func (b *BufferflowTimedRaw) BreakApartCommands(cmd string) []string {
	return []string{cmd}
}

func (b *BufferflowTimedRaw) Pause() {
	return
}

func (b *BufferflowTimedRaw) Unpause() {
	return
}

func (b *BufferflowTimedRaw) SeeIfSpecificCommandsShouldSkipBuffer(cmd string) bool {
	return false
}

func (b *BufferflowTimedRaw) SeeIfSpecificCommandsShouldPauseBuffer(cmd string) bool {
	return false
}

func (b *BufferflowTimedRaw) SeeIfSpecificCommandsShouldUnpauseBuffer(cmd string) bool {
	return false
}

func (b *BufferflowTimedRaw) SeeIfSpecificCommandsShouldWipeBuffer(cmd string) bool {
	return false
}

func (b *BufferflowTimedRaw) SeeIfSpecificCommandsReturnNoResponse(cmd string) bool {
	return false
}

func (b *BufferflowTimedRaw) ReleaseLock() {
}

func (b *BufferflowTimedRaw) IsBufferGloballySendingBackIncomingData() bool {
	return true
}

func (b *BufferflowTimedRaw) Close() {
	b.ticker.Stop()
	close(b.Input)
}