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