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Timer.hh
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1 /*
2  * Copyright 2012 Nate Koenig
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  *
16 */
17 /* Desc: A timer class
18  * Author: Nate Koenig
19  * Date: 22 Nov 2009
20  */
21 
22 #ifndef _TIMER_HH_
23 #define _TIMER_HH_
24 
25 #include "common/Console.hh"
26 #include "common/Time.hh"
27 
28 namespace gazebo
29 {
30  namespace common
31  {
34 
37  class Timer
38  {
40  public: Timer();
41 
43  public: virtual ~Timer();
44 
46  public: void Start();
47 
50  public: Time GetElapsed() const;
51 
53  public: friend std::ostream &operator<<(std::ostream &out,
54  const gazebo::common::Timer &t)
55  {
56  out << t.GetElapsed();
57  return out;
58  }
59 
61  private: Time start;
62  };
64  }
65 }
66 #endif
67 
68