trunk/clients/go/src/timing.go

/*
 *  Copyright (c) 2011 NeuStar, Inc.
 *  All rights reserved.  
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at 
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *  
 *  NeuStar, the Neustar logo and related names and logos are registered
 *  trademarks, service marks or tradenames of NeuStar, Inc. All other 
 *  product names, company names, marks, logos and symbols may be trademarks
 *  of their respective owners.
 */

package kafka

import (
  "log"
  "time"
)

type Timing struct {
  label string
  start int64
  stop  int64
}

func StartTiming(label string) *Timing {
  return &Timing{label: label, start: time.Nanoseconds(), stop: 0}
}

func (t *Timing) Stop() {
  t.stop = time.Nanoseconds()
}

func (t *Timing) Print() {
  if t.stop == 0 {
    t.Stop()
  }
  log.Printf("%s took: %f ms\n", t.label, float64((time.Nanoseconds()-t.start))/1000000)
}