Nicolas Geoffray | 818f210 | 2014-02-18 16:43:35 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2014 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 | |
Ian Rogers | 0279ebb | 2014-10-08 17:27:48 -0700 | [diff] [blame] | 17 | #ifndef ART_COMPILER_UTILS_ARENA_OBJECT_H_ |
| 18 | #define ART_COMPILER_UTILS_ARENA_OBJECT_H_ |
Nicolas Geoffray | 818f210 | 2014-02-18 16:43:35 +0000 | [diff] [blame] | 19 | |
| 20 | #include "arena_allocator.h" |
| 21 | #include "base/logging.h" |
Ian Rogers | 6a3c1fc | 2014-10-31 00:33:20 -0700 | [diff] [blame] | 22 | #include "scoped_arena_allocator.h" |
Nicolas Geoffray | 818f210 | 2014-02-18 16:43:35 +0000 | [diff] [blame] | 23 | |
| 24 | namespace art { |
| 25 | |
Ian Rogers | 6a3c1fc | 2014-10-31 00:33:20 -0700 | [diff] [blame] | 26 | // Parent for arena allocated objects giving appropriate new and delete operators. |
| 27 | template<enum ArenaAllocKind kAllocKind> |
Nicolas Geoffray | 818f210 | 2014-02-18 16:43:35 +0000 | [diff] [blame] | 28 | class ArenaObject { |
| 29 | public: |
| 30 | // Allocate a new ArenaObject of 'size' bytes in the Arena. |
| 31 | void* operator new(size_t size, ArenaAllocator* allocator) { |
Ian Rogers | 6a3c1fc | 2014-10-31 00:33:20 -0700 | [diff] [blame] | 32 | return allocator->Alloc(size, kAllocKind); |
| 33 | } |
| 34 | |
| 35 | static void* operator new(size_t size, ScopedArenaAllocator* arena) { |
| 36 | return arena->Alloc(size, kAllocKind); |
Nicolas Geoffray | 818f210 | 2014-02-18 16:43:35 +0000 | [diff] [blame] | 37 | } |
| 38 | |
| 39 | void operator delete(void*, size_t) { |
| 40 | LOG(FATAL) << "UNREACHABLE"; |
Ian Rogers | 2c4257b | 2014-10-24 14:20:06 -0700 | [diff] [blame] | 41 | UNREACHABLE(); |
Nicolas Geoffray | 818f210 | 2014-02-18 16:43:35 +0000 | [diff] [blame] | 42 | } |
| 43 | }; |
| 44 | |
Ian Rogers | 6a3c1fc | 2014-10-31 00:33:20 -0700 | [diff] [blame] | 45 | |
| 46 | // Parent for arena allocated objects that get deleted, gives appropriate new and delete operators. |
| 47 | // Currently this is used by the quick compiler for debug reference counting arena allocations. |
| 48 | template<enum ArenaAllocKind kAllocKind> |
| 49 | class DeletableArenaObject { |
| 50 | public: |
| 51 | // Allocate a new ArenaObject of 'size' bytes in the Arena. |
| 52 | void* operator new(size_t size, ArenaAllocator* allocator) { |
| 53 | return allocator->Alloc(size, kAllocKind); |
| 54 | } |
| 55 | |
| 56 | static void* operator new(size_t size, ScopedArenaAllocator* arena) { |
| 57 | return arena->Alloc(size, kAllocKind); |
| 58 | } |
| 59 | |
| 60 | void operator delete(void*, size_t) { |
| 61 | // Nop. |
| 62 | } |
| 63 | }; |
| 64 | |
Nicolas Geoffray | 818f210 | 2014-02-18 16:43:35 +0000 | [diff] [blame] | 65 | } // namespace art |
| 66 | |
Ian Rogers | 0279ebb | 2014-10-08 17:27:48 -0700 | [diff] [blame] | 67 | #endif // ART_COMPILER_UTILS_ARENA_OBJECT_H_ |