59 lines
1.6 KiB
C++
59 lines
1.6 KiB
C++
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/*
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* Copyright (c) 2021, 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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#include "RingBuffer.h"
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#include <android-base/logging.h>
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#include <inttypes.h> // for PRIu64 and friends
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#include <memory>
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namespace android {
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namespace automotive {
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namespace telemetry {
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RingBuffer::RingBuffer(int32_t limit) : mSizeLimit(limit) {}
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void RingBuffer::push(BufferedCarData&& data) {
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mList.push_back(std::move(data));
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while (mList.size() > mSizeLimit) {
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mList.pop_front();
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mTotalDroppedDataCount += 1;
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}
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}
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BufferedCarData RingBuffer::popBack() {
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auto result = std::move(mList.back());
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mList.pop_back();
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return result;
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}
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void RingBuffer::dump(int fd) const {
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dprintf(fd, " RingBuffer:\n");
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dprintf(fd, " mSizeLimit=%d\n", mSizeLimit);
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dprintf(fd, " mList.size=%zu\n", mList.size());
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dprintf(fd, " mTotalDroppedDataCount=%" PRIu64 "\n", mTotalDroppedDataCount);
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}
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int32_t RingBuffer::size() const {
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return mList.size();
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}
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} // namespace telemetry
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} // namespace automotive
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} // namespace android
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