zookeeper/watchdog.go

package main

import (
	"fmt"
	"time"

	"go.wit.com/log"
)

// timeFunction takes a function as an argument and returns the execution time.
func TimeFunction(f func()) time.Duration {
	startTime := time.Now()      // Record the start time
	f()                          // Execute the function
	return time.Since(startTime) // Calculate the elapsed time
}

func shutdownDog() {
	// this example would exit/destroy the ticker in 10 seconds
	go func() {
		time.Sleep(10 * time.Second)
		me.dogchan <- true
	}()
}

func NewWatchdog() {
	me.dog = time.NewTicker(me.pollDelay)
	defer me.dog.Stop()
	me.dogchan = make(chan bool)
	/*
		// this example would exit/destroy the ticker in 10 seconds
		go func() {
			time.Sleep(10 * time.Second)
			done <- true
		}()
	*/
	for {
		select {
		case <-me.dogchan:
			fmt.Println("Done!")
			return
		case t := <-me.dog.C:
			// log.Info("zookeeper Watchdog() ticked", me.hostname, "Current time: ", t)
			var counter int
			loop := me.machines.SortByName()
			for loop.Scan() {
				m := loop.Machine()
				counter += 1
				zood := m.FindPackageByName("zood")
				if zood == nil {
					log.Info("machine", m.Hostname, "does not have zood installed")
				} else {
					// log.Info("know about machine", m.Hostname, "zood version", zood.Version)
				}
			}
			log.Info("zookeeper has", counter, "machines. Current time:", t)

			// h.pollHypervisor()
			// h.Scan()
		}
	}
}