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"
)

// Timing wraps a timer
type Timing struct {
	label string
	start int64
	stop  int64
}

// StartTiming returns a new timer
func StartTiming(label string) *Timing {
	return &Timing{label: label, start: time.Now().UnixNano()}
}

// Stop stops the timer
func (t *Timing) Stop() {
	t.stop = time.Now().UnixNano()
}

// Print logs timing information associated with the timer
func (t *Timing) Print() {
	if t.stop == 0 {
		t.Stop()
	}
	log.Printf("%s took: %f ms\n", t.label, float64(t.stop-t.start)/1000000)
}