61 lines
1.3 KiB
C
61 lines
1.3 KiB
C
|
// Copyright (c) 2017 Computer Vision Center (CVC) at the Universitat Autonoma
|
||
|
|
// de Barcelona (UAB).
|
||
|
|
//
|
||
|
|
// This work is licensed under the terms of the MIT license.
|
||
|
|
// For a copy, see <https://opensource.org/licenses/MIT>.
|
||
|
|
|
||
|
|
#pragma once
|
||
|
|
|
||
|
|
#include <chrono>
|
||
|
|
#include <cstdint>
|
||
|
|
|
||
|
|
namespace carla {
|
||
|
|
namespace detail {
|
||
|
|
|
||
|
|
template <typename CLOCK>
|
||
|
|
class StopWatchTmpl {
|
||
|
|
static_assert(CLOCK::is_steady, "The StopWatch's clock must be steady");
|
||
|
|
public:
|
||
|
|
|
||
|
|
using clock = CLOCK;
|
||
|
|
|
||
|
|
StopWatchTmpl() : _start(clock::now()), _end(), _is_running(true) {}
|
||
|
|
|
||
|
|
void Restart() {
|
||
|
|
_is_running = true;
|
||
|
|
_start = clock::now();
|
||
|
|
}
|
||
|
|
|
||
|
|
void Stop() {
|
||
|
|
_end = clock::now();
|
||
|
|
_is_running = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
typename clock::duration GetDuration() const {
|
||
|
|
return _is_running ? clock::now() - _start : _end - _start;
|
||
|
|
}
|
||
|
|
|
||
|
|
template <class RESOLUTION=std::chrono::milliseconds>
|
||
|
|
size_t GetElapsedTime() const {
|
||
|
|
return static_cast<size_t>(std::chrono::duration_cast<RESOLUTION>(GetDuration()).count());
|
||
|
|
}
|
||
|
|
|
||
|
|
bool IsRunning() const {
|
||
|
|
return _is_running;
|
||
|
|
}
|
||
|
|
|
||
|
|
private:
|
||
|
|
|
||
|
|
typename clock::time_point _start;
|
||
|
|
|
||
|
|
typename clock::time_point _end;
|
||
|
|
|
||
|
|
bool _is_running;
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace detail
|
||
|
|
|
||
|
|
using StopWatch = detail::StopWatchTmpl<std::chrono::steady_clock>;
|
||
|
|
|
||
|
|
} // namespace carla
|