Timer.hh
00001 /*
00002  * Copyright 2011 Nate Koenig & Andrew Howard
00003  *
00004  * Licensed under the Apache License, Version 2.0 (the "License");
00005  * you may not use this file except in compliance with the License.
00006  * You may obtain a copy of the License at
00007  *
00008  *     http://www.apache.org/licenses/LICENSE-2.0
00009  *
00010  * Unless required by applicable law or agreed to in writing, software
00011  * distributed under the License is distributed on an "AS IS" BASIS,
00012  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00013  * See the License for the specific language governing permissions and
00014  * limitations under the License.
00015  *
00016 */
00017 /* Desc: A timer class
00018  * Author: Nate Koenig
00019  * Date: 22 Nov 2009
00020  */
00021 
00022 #ifndef TIMER_HH
00023 #define TIMER_HH
00024 
00025 #include "common/Console.hh"
00026 #include "common/Time.hh"
00027 
00028 namespace gazebo
00029 {
00030     namespace common
00031   {
00034    
00036     class Timer
00037     {
00039       public: Timer();
00040               
00042       public: virtual ~Timer();
00043   
00045       public: void Start();
00046   
00048       public: Time GetElapsed() const;
00049   
00050       public: friend std::ostream &operator<<(std::ostream &out, 
00051                                               const gazebo::common::Timer &t)
00052               {
00053                 out << t.GetElapsed();
00054                 return out;
00055               }
00056   
00057       private: Time start;
00058     };
00060   }
00061 }
00062 #endif