68 lines
1.7 KiB
C++
68 lines
1.7 KiB
C++
/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef SRC_PROGRESS_UPDATER_H
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#define SRC_PROGRESS_UPDATER_H
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#include <condition_variable>
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#include <functional>
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#include <iomanip>
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#include <iostream>
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#include <thread>
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#include <vector>
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class ProgressUpdater {
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public:
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explicit ProgressUpdater(size_t numProgressBars) : mNumBars(numProgressBars) {
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}
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/**
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* Initializes progress bars and starts the rendering thread.
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* Do not output to stdout before calling stop().
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*/
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void start();
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/**
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* Shutdowns the rendering thread.
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*/
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void stop();
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void update(size_t progressBarIndex, float value);
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void update(size_t progressBarIndex, size_t value, size_t max);
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private:
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struct Update {
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size_t index;
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float value;
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};
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void initProgressValues();
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void printProgressBars();
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void printUpdates();
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void printUpdates(const std::vector<Update>& updates);
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size_t mNumBars;
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std::vector<float> mProgress;
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std::mutex mMutex;
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std::condition_variable mCondition;
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std::vector<Update> mUpdates;
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std::thread mThread;
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bool mExitRequested = false;
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};
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#endif // SRC_PROGRESS_UPDATER_H
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