1 /* 2 * Copyright (C) 2017 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 #ifndef AAPT_IO_BIGBUFFERINPUTSTREAM_H 18 #define AAPT_IO_BIGBUFFERINPUTSTREAM_H 19 20 #include "io/Io.h" 21 #include "util/BigBuffer.h" 22 23 namespace aapt { 24 namespace io { 25 26 class BigBufferInputStream : public InputStream { 27 public: 28 inline explicit BigBufferInputStream(const BigBuffer* buffer) 29 : buffer_(buffer), iter_(buffer->begin()) {} 30 virtual ~BigBufferInputStream() = default; 31 32 bool Next(const void** data, size_t* size) override; 33 34 void BackUp(size_t count) override; 35 36 bool CanRewind() const override; 37 38 bool Rewind() override; 39 40 size_t ByteCount() const override; 41 42 bool HadError() const override; 43 44 private: 45 DISALLOW_COPY_AND_ASSIGN(BigBufferInputStream); 46 47 const BigBuffer* buffer_; 48 BigBuffer::const_iterator iter_; 49 size_t offset_ = 0; 50 size_t bytes_read_ = 0; 51 }; 52 53 } // namespace io 54 } // namespace aapt 55 56 #endif // AAPT_IO_BIGBUFFERINPUTSTREAM_H 57
