1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include "io/File.h" 18 19 #include <memory> 20 21 namespace aapt { 22 namespace io { 23 24 IFile* IFile::CreateFileSegment(size_t offset, size_t len) { 25 FileSegment* file_segment = new FileSegment(this, offset, len); 26 segments_.push_back(std::unique_ptr<IFile>(file_segment)); 27 return file_segment; 28 } 29 30 std::unique_ptr<IData> FileSegment::OpenAsData() { 31 std::unique_ptr<IData> data = file_->OpenAsData(); 32 if (!data) { 33 return {}; 34 } 35 36 if (offset_ <= data->size() - len_) { 37 return util::make_unique<DataSegment>(std::move(data), offset_, len_); 38 } 39 return {}; 40 } 41 42 std::unique_ptr<io::InputStream> FileSegment::OpenInputStream() { 43 return OpenAsData(); 44 } 45 46 } // namespace io 47 } // namespace aapt 48
