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45 lines
1.4 KiB
45 lines
1.4 KiB
/*
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* Copyright 2019 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 "packet/view.h"
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#include "os/log.h"
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namespace bluetooth {
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namespace packet {
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View::View(std::shared_ptr<const std::vector<uint8_t>> data, size_t begin, size_t end)
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: data_(data), begin_(begin < data_->size() ? begin : data_->size()),
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end_(end < data_->size() ? end : data_->size()) {}
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View::View(const View& view, size_t begin, size_t end) : data_(view.data_) {
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begin_ = (begin < view.size() ? begin : view.size());
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begin_ += view.begin_;
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end_ = (end < view.size() ? end : view.size());
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end_ += view.begin_;
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}
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uint8_t View::operator[](size_t i) const {
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ASSERT_LOG(i + begin_ < end_, "Out of bounds access at %zu", i);
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return data_->operator[](i + begin_);
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}
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size_t View::size() const {
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return end_ - begin_;
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}
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} // namespace packet
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} // namespace bluetooth
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