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Golang DesiredLRPSchedulingInfo.ApplyUpdate方法代碼示例

本文整理匯總了Golang中github.com/cloudfoundry-incubator/bbs/models.DesiredLRPSchedulingInfo.ApplyUpdate方法的典型用法代碼示例。如果您正苦於以下問題:Golang DesiredLRPSchedulingInfo.ApplyUpdate方法的具體用法?Golang DesiredLRPSchedulingInfo.ApplyUpdate怎麽用?Golang DesiredLRPSchedulingInfo.ApplyUpdate使用的例子?那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在github.com/cloudfoundry-incubator/bbs/models.DesiredLRPSchedulingInfo的用法示例。


在下文中一共展示了DesiredLRPSchedulingInfo.ApplyUpdate方法的2個代碼示例,這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚,您的評價將有助於係統推薦出更棒的Golang代碼示例。

示例1: UpdateDesiredLRP

func (db *ETCDDB) UpdateDesiredLRP(logger lager.Logger, processGuid string, update *models.DesiredLRPUpdate) error {
	logger = logger.Session("update-desired-lrp", lager.Data{"process-guid": processGuid})
	logger.Info("starting")
	defer logger.Info("complete")

	var schedulingInfo *models.DesiredLRPSchedulingInfo
	var existingInstances int32
	var err error

	for i := 0; i < 2; i++ {
		var index uint64

		schedulingInfo, index, err = db.rawDesiredLRPSchedulingInfo(logger, processGuid)
		if err != nil {
			logger.Error("failed-to-fetch-scheduling-info", err)
			break
		}

		existingInstances = schedulingInfo.Instances

		schedulingInfo.ApplyUpdate(update)

		err = db.updateDesiredLRPSchedulingInfo(logger, schedulingInfo, index)
		if err != nil {
			logger.Error("update-scheduling-info-failed", err)
			modelErr := models.ConvertError(err)
			if modelErr != models.ErrResourceConflict {
				break
			}
			// Retry on CAS fail
			continue
		}

		break
	}

	if err != nil {
		return err
	}

	switch diff := schedulingInfo.Instances - existingInstances; {
	case diff > 0:
		db.startInstanceRange(logger, existingInstances, schedulingInfo.Instances, schedulingInfo)

	case diff < 0:
		db.stopInstanceRange(logger, schedulingInfo.Instances, existingInstances, schedulingInfo)

	case diff == 0:
		// this space intentionally left blank
	}

	return nil
}
開發者ID:emc-xchallenge,項目名稱:bbs,代碼行數:53,代碼來源:desired_lrp_db.go

示例2: UpdateDesiredLRP

func (db *ETCDDB) UpdateDesiredLRP(logger lager.Logger, processGuid string, update *models.DesiredLRPUpdate) (*models.DesiredLRP, error) {
	logger.Info("starting")
	defer logger.Info("complete")

	var schedulingInfo *models.DesiredLRPSchedulingInfo
	var err error
	var beforeDesiredLRP *models.DesiredLRP

	for i := 0; i < 2; i++ {
		var index uint64

		beforeDesiredLRP, index, err = db.rawDesiredLRPByProcessGuid(logger, processGuid)
		if err != nil {
			logger.Error("failed-to-fetch-desired-lrp", err)
			break
		}

		schedulingInfoValue := beforeDesiredLRP.DesiredLRPSchedulingInfo()
		schedulingInfo = &schedulingInfoValue
		schedulingInfo.ApplyUpdate(update)

		err = db.updateDesiredLRPSchedulingInfo(logger, schedulingInfo, index)
		if err != nil {
			logger.Error("update-scheduling-info-failed", err)
			modelErr := models.ConvertError(err)
			if modelErr != models.ErrResourceConflict {
				break
			}
			// Retry on CAS fail
			continue
		}

		break
	}

	if err != nil {
		return nil, err
	}

	return beforeDesiredLRP, nil
}
開發者ID:timani,項目名稱:bbs,代碼行數:41,代碼來源:desired_lrp_db.go


注:本文中的github.com/cloudfoundry-incubator/bbs/models.DesiredLRPSchedulingInfo.ApplyUpdate方法示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台,相關代碼片段篩選自各路編程大神貢獻的開源項目,源碼版權歸原作者所有,傳播和使用請參考對應項目的License;未經允許,請勿轉載。