mirror of
https://github.com/tesseract-ocr/tesseract.git
synced 2024-11-27 20:59:36 +08:00
62 lines
1.6 KiB
C++
62 lines
1.6 KiB
C++
// (C) Copyright 2017, Google Inc.
|
|
// 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.
|
|
// Portability include to match the Google test environment.
|
|
|
|
#ifndef TESSERACT_UNITTEST_CYCLETIMER_H
|
|
#define TESSERACT_UNITTEST_CYCLETIMER_H
|
|
|
|
#include "absl/time/clock.h" // for GetCurrentTimeNanos
|
|
|
|
// See https://github.com/google/or-tools/blob/master/ortools/base/timer.h
|
|
class CycleTimer {
|
|
public:
|
|
CycleTimer() {
|
|
Reset();
|
|
}
|
|
|
|
void Reset() {
|
|
running_ = false;
|
|
sum_ = 0;
|
|
start_ = 0;
|
|
}
|
|
|
|
// When Start() is called multiple times, only the most recent is used.
|
|
void Start() {
|
|
running_ = true;
|
|
start_ = absl::GetCurrentTimeNanos();
|
|
}
|
|
|
|
void Restart() {
|
|
sum_ = 0;
|
|
Start();
|
|
}
|
|
|
|
void Stop() {
|
|
if (running_) {
|
|
sum_ += absl::GetCurrentTimeNanos() - start_;
|
|
running_ = false;
|
|
}
|
|
}
|
|
int64_t GetInMs() const { return GetNanos() / 1000000; }
|
|
|
|
protected:
|
|
int64_t GetNanos() const {
|
|
return running_ ? absl::GetCurrentTimeNanos() - start_ + sum_ : sum_;
|
|
}
|
|
|
|
private:
|
|
bool running_;
|
|
int64_t start_;
|
|
int64_t sum_;
|
|
};
|
|
|
|
#endif // TESSERACT_UNITTEST_CYCLETIMER_H
|