Brian Carlstrom | cd60ac7 | 2013-01-20 17:09:51 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2013 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 | |
Vladimir Marko | 131980f | 2015-12-03 18:29:23 +0000 | [diff] [blame] | 17 | #ifndef ART_COMPILER_LINKER_VECTOR_OUTPUT_STREAM_H_ |
| 18 | #define ART_COMPILER_LINKER_VECTOR_OUTPUT_STREAM_H_ |
Brian Carlstrom | cd60ac7 | 2013-01-20 17:09:51 -0800 | [diff] [blame] | 19 | |
| 20 | #include "output_stream.h" |
| 21 | |
| 22 | #include <string> |
Ian Rogers | 8d3a117 | 2013-06-04 01:13:28 -0700 | [diff] [blame] | 23 | #include <string.h> |
Brian Carlstrom | cd60ac7 | 2013-01-20 17:09:51 -0800 | [diff] [blame] | 24 | #include <vector> |
| 25 | |
| 26 | namespace art { |
| 27 | |
Ian Rogers | 0279ebb | 2014-10-08 17:27:48 -0700 | [diff] [blame] | 28 | class VectorOutputStream FINAL : public OutputStream { |
Brian Carlstrom | cd60ac7 | 2013-01-20 17:09:51 -0800 | [diff] [blame] | 29 | public: |
Ian Rogers | 0279ebb | 2014-10-08 17:27:48 -0700 | [diff] [blame] | 30 | VectorOutputStream(const std::string& location, std::vector<uint8_t>* vector); |
Brian Carlstrom | cd60ac7 | 2013-01-20 17:09:51 -0800 | [diff] [blame] | 31 | |
Vladimir Marko | 10c1356 | 2015-11-25 14:33:36 +0000 | [diff] [blame] | 32 | ~VectorOutputStream() OVERRIDE {} |
Brian Carlstrom | cd60ac7 | 2013-01-20 17:09:51 -0800 | [diff] [blame] | 33 | |
Vladimir Marko | 10c1356 | 2015-11-25 14:33:36 +0000 | [diff] [blame] | 34 | bool WriteFully(const void* buffer, size_t byte_count) OVERRIDE { |
Ian Rogers | 0279ebb | 2014-10-08 17:27:48 -0700 | [diff] [blame] | 35 | if (static_cast<size_t>(offset_) == vector_->size()) { |
Ian Rogers | 8d3a117 | 2013-06-04 01:13:28 -0700 | [diff] [blame] | 36 | const uint8_t* start = reinterpret_cast<const uint8_t*>(buffer); |
Ian Rogers | 0279ebb | 2014-10-08 17:27:48 -0700 | [diff] [blame] | 37 | vector_->insert(vector_->end(), &start[0], &start[byte_count]); |
Ian Rogers | 8d3a117 | 2013-06-04 01:13:28 -0700 | [diff] [blame] | 38 | offset_ += byte_count; |
| 39 | } else { |
| 40 | off_t new_offset = offset_ + byte_count; |
| 41 | EnsureCapacity(new_offset); |
Ian Rogers | 0279ebb | 2014-10-08 17:27:48 -0700 | [diff] [blame] | 42 | memcpy(&(*vector_)[offset_], buffer, byte_count); |
Ian Rogers | 8d3a117 | 2013-06-04 01:13:28 -0700 | [diff] [blame] | 43 | offset_ = new_offset; |
| 44 | } |
| 45 | return true; |
| 46 | } |
Brian Carlstrom | cd60ac7 | 2013-01-20 17:09:51 -0800 | [diff] [blame] | 47 | |
Vladimir Marko | 10c1356 | 2015-11-25 14:33:36 +0000 | [diff] [blame] | 48 | off_t Seek(off_t offset, Whence whence) OVERRIDE; |
| 49 | |
| 50 | bool Flush() OVERRIDE { |
| 51 | return true; |
| 52 | } |
Brian Carlstrom | cd60ac7 | 2013-01-20 17:09:51 -0800 | [diff] [blame] | 53 | |
| 54 | private: |
Ian Rogers | 8d3a117 | 2013-06-04 01:13:28 -0700 | [diff] [blame] | 55 | void EnsureCapacity(off_t new_offset) { |
Ian Rogers | 0279ebb | 2014-10-08 17:27:48 -0700 | [diff] [blame] | 56 | if (new_offset > static_cast<off_t>(vector_->size())) { |
| 57 | vector_->resize(new_offset); |
Ian Rogers | 8d3a117 | 2013-06-04 01:13:28 -0700 | [diff] [blame] | 58 | } |
| 59 | } |
Brian Carlstrom | cd60ac7 | 2013-01-20 17:09:51 -0800 | [diff] [blame] | 60 | |
| 61 | off_t offset_; |
Ian Rogers | 0279ebb | 2014-10-08 17:27:48 -0700 | [diff] [blame] | 62 | std::vector<uint8_t>* const vector_; |
Brian Carlstrom | cd60ac7 | 2013-01-20 17:09:51 -0800 | [diff] [blame] | 63 | |
| 64 | DISALLOW_COPY_AND_ASSIGN(VectorOutputStream); |
| 65 | }; |
| 66 | |
| 67 | } // namespace art |
| 68 | |
Vladimir Marko | 131980f | 2015-12-03 18:29:23 +0000 | [diff] [blame] | 69 | #endif // ART_COMPILER_LINKER_VECTOR_OUTPUT_STREAM_H_ |