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/*
* Copyright (C) 2016 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 "io/File.h"
#include <memory>
namespace aapt {
namespace io {
IFile* IFile::CreateFileSegment(size_t offset, size_t len) {
FileSegment* file_segment = new FileSegment(this, offset, len);
segments_.push_back(std::unique_ptr<IFile>(file_segment));
return file_segment;
}
std::unique_ptr<IData> FileSegment::OpenAsData() {
std::unique_ptr<IData> data = file_->OpenAsData();
if (!data) {
return {};
}
if (offset_ <= data->size() - len_) {
return util::make_unique<DataSegment>(std::move(data), offset_, len_);
}
return {};
}
std::unique_ptr<io::InputStream> FileSegment::OpenInputStream() {
return OpenAsData();
}
} // namespace io
} // namespace aapt
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