Golang workpool.WorkPool類代碼示例

func fetchStateAndBuildZones(logger lager.Logger, workPool *workpool.WorkPool, clients map[string]rep.Client, metricEmitter auctiontypes.AuctionMetricEmitterDelegate) map[string]Zone {
	wg := &sync.WaitGroup{}
	zones := map[string]Zone{}
	lock := &sync.Mutex{}

	wg.Add(len(clients))
	for guid, client := range clients {
		guid, client := guid, client
		workPool.Submit(func() {
			defer wg.Done()
			state, err := client.State()
			if err != nil {
				metricEmitter.FailedCellStateRequest()
				logger.Error("failed-to-get-state", err, lager.Data{"cell-guid": guid})
				return
			}

			if state.Evacuating {
				return
			}

			cell := NewCell(logger, guid, client, state)
			lock.Lock()
			zones[state.Zone] = append(zones[state.Zone], cell)
			lock.Unlock()
		})
	}

	wg.Wait()

	return zones
}

	DiskMB:     100.0,
	Containers: 100,
}

var timeout time.Duration
var workers int

var svgReport *visualization.SVGReport
var reports []*visualization.Report
var reportName string
var disableSVGReport bool

var sessionsToTerminate []*gexec.Session
var runnerProcess ifrit.Process
var runnerDelegate *auctionRunnerDelegate
var workPool *workpool.WorkPool
var runner auctiontypes.AuctionRunner
var logger lager.Logger

func init() {
	flag.StringVar(&communicationMode, "communicationMode", "inprocess", "one of inprocess or http")
	flag.DurationVar(&timeout, "timeout", time.Second, "timeout when waiting for responses from remote calls")
	flag.IntVar(&workers, "workers", 500, "number of concurrent communication worker pools")

	flag.BoolVar(&disableSVGReport, "disableSVGReport", false, "disable displaying SVG reports of the simulation runs")
	flag.StringVar(&reportName, "reportName", "report", "report name")
}

func TestAuction(t *testing.T) {
	RegisterFailHandler(Fail)
	RunSpecs(t, "Auction Suite")

	"github.com/cloudfoundry-incubator/auction/auctionrunner"
	"github.com/cloudfoundry-incubator/auction/auctiontypes/fakes"
	"github.com/cloudfoundry-incubator/rep"
	"github.com/cloudfoundry-incubator/rep/repfakes"
	"github.com/cloudfoundry/gunk/workpool"
	"github.com/pivotal-golang/lager"
	"github.com/pivotal-golang/lager/lagertest"

	. "github.com/onsi/ginkgo"
	. "github.com/onsi/gomega"
)

var _ = Describe("ZoneBuilder", func() {
	var repA, repB, repC *repfakes.FakeSimClient
	var clients map[string]rep.Client
	var workPool *workpool.WorkPool
	var logger lager.Logger
	var metricEmitter *fakes.FakeAuctionMetricEmitterDelegate

	BeforeEach(func() {
		logger = lagertest.NewTestLogger("test")

		var err error
		workPool, err = workpool.NewWorkPool(5)
		Expect(err).NotTo(HaveOccurred())

		repA = new(repfakes.FakeSimClient)
		repB = new(repfakes.FakeSimClient)
		repC = new(repfakes.FakeSimClient)

		clients = map[string]rep.Client{

package workpool_test

import (
	"github.com/cloudfoundry/gunk/workpool"

	. "github.com/onsi/ginkgo"
	. "github.com/onsi/gomega"
)

var _ = Describe("WorkPool", func() {
	var pool *workpool.WorkPool

	AfterEach(func() {
		if pool != nil {
			pool.Stop()
		}
	})

	Context("when max workers is non-positive", func() {
		It("errors", func() {
			_, err := workpool.NewWorkPool(0)
			Expect(err).To(HaveOccurred())
		})
	})

	Context("when max workers is positive", func() {
		var maxWorkers int
		var calledChan chan int
		var unblockChan chan struct{}
		var work func(int) func()