ASL  0.1.7
Advanced Simulation Library
aslTimer.h
Go to the documentation of this file.
1 /*
2  * Advanced Simulation Library <http://asl.org.il>
3  *
4  * Copyright 2015 Avtech Scientific <http://avtechscientific.com>
5  *
6  *
7  * This file is part of Advanced Simulation Library (ASL).
8  *
9  * ASL is free software: you can redistribute it and/or modify it
10  * under the terms of the GNU Affero General Public License as
11  * published by the Free Software Foundation, version 3 of the License.
12  *
13  * ASL is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16  * GNU Affero General Public License for more details.
17  *
18  * You should have received a copy of the GNU Affero General Public License
19  * along with ASL. If not, see <http://www.gnu.org/licenses/>.
20  *
21  */
22 
23 
24 #ifndef ASLTIMER_H
25 #define ASLTIMER_H
26 
27 #include <chrono>
28 #include <thread>
29 
30 namespace asl{
31 using namespace std::chrono;
32 
34  class Timer {
35  private:
36  high_resolution_clock::time_point realTimeMark;
37  duration<double> realTimeElapsed;
38 
39  clock_t processorTimeMark;
40  double processorTimeElapsed;
41  public:
42  inline Timer() : processorTimeElapsed(0), realTimeElapsed(0) {};
43  inline void start() {processorTimeMark = clock(); realTimeMark = high_resolution_clock::now();}
44  inline void stop() {processorTimeElapsed += (double)(clock() - processorTimeMark); realTimeElapsed += duration_cast<duration<double>>(high_resolution_clock::now() - realTimeMark);}
45  inline const double realTime() const{return realTimeElapsed.count();}
46  inline const double processorTime() const{return (double)processorTimeElapsed/CLOCKS_PER_SEC;}
47  inline const double processorLoad() const{return processorTime()/realTime();}
48  inline void reset() {processorTimeElapsed = 0; realTimeElapsed = duration<double>(0);}
50  inline const double estimatedDuration(double completeness) {return realTimeElapsed.count()/completeness;}
52  inline const double estimatedRemainder(double completeness) {return (1. - completeness) * estimatedDuration(completeness);}
53  };
54 
56  inline void sleep(unsigned int span)
57  {
58  std::this_thread::sleep_for(std::chrono::milliseconds(span));
59  }
60 
61 } //namespace acl
62 
63 #endif // ASLTIMER_H
const double estimatedRemainder(double completeness)
Returns estimated time till finishing current task based on its current completeness [0....
Definition: aslTimer.h:52
const double realTime() const
Definition: aslTimer.h:45
Advanced Simulation Library.
Definition: aslDataInc.h:30
const double processorTime() const
Definition: aslTimer.h:46
void sleep(unsigned int span)
Blocks execution of the calling thread for the time span (in milliseconds)
Definition: aslTimer.h:56
const double estimatedDuration(double completeness)
Returns estimated duration of the current task based on its current completeness [0....
Definition: aslTimer.h:50
void reset()
Definition: aslTimer.h:48
void stop()
Definition: aslTimer.h:44
void start()
Definition: aslTimer.h:43
const double processorLoad() const
Definition: aslTimer.h:47