epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 1 | |
| 2 | /* |
| 3 | * Copyright 2006 The Android Open Source Project |
| 4 | * |
| 5 | * Use of this source code is governed by a BSD-style license that can be |
| 6 | * found in the LICENSE file. |
| 7 | */ |
| 8 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 9 | |
| 10 | #ifndef SkTemplatesPriv_DEFINED |
| 11 | #define SkTemplatesPriv_DEFINED |
| 12 | |
| 13 | #include "SkTemplates.h" |
| 14 | |
| 15 | //////////////////////////////////////////////////////////////////////////////// |
| 16 | |
| 17 | #ifdef SK_BUILD_FOR_WIN32 |
| 18 | #define SK_PLACEMENT_NEW(result, classname, storage, storageSize) \ |
| 19 | result = SkNEW(classname) |
| 20 | |
| 21 | #define SK_PLACEMENT_NEW_ARGS(result, classname, storage, storageSize, args) \ |
| 22 | result = SkNEW_ARGS(classname, args) |
| 23 | #else |
| 24 | #include <new> |
| 25 | #define SK_PLACEMENT_NEW(result, classname, storage, storagesize) \ |
| 26 | do { \ |
| 27 | if (storagesize) \ |
| 28 | { \ |
| 29 | SkASSERT(storageSize >= sizeof(classname)); \ |
| 30 | result = new(storage) classname; \ |
| 31 | } \ |
| 32 | else \ |
| 33 | result = SkNEW(classname); \ |
| 34 | } while (0) |
| 35 | |
| 36 | #define SK_PLACEMENT_NEW_ARGS(result, classname, storage, storagesize, args) \ |
| 37 | do { \ |
| 38 | if (storagesize) \ |
| 39 | { \ |
| 40 | SkASSERT(storageSize >= sizeof(classname)); \ |
| 41 | result = new(storage) classname args; \ |
| 42 | } \ |
| 43 | else \ |
| 44 | result = SkNEW_ARGS(classname, args); \ |
| 45 | } while (0) |
| 46 | #endif |
| 47 | |
| 48 | //////////////////////////////////////////////////////////////////////////////// |
| 49 | |
| 50 | template <class T> class SkAutoTPlacementDelete { |
| 51 | public: |
| 52 | SkAutoTPlacementDelete(T* obj, void* storage) : fObj(obj), fStorage(storage) |
| 53 | { |
| 54 | } |
| 55 | ~SkAutoTPlacementDelete() |
| 56 | { |
| 57 | if (fObj) |
| 58 | { |
| 59 | if (fObj == fStorage) |
| 60 | fObj->~T(); |
| 61 | else |
| 62 | delete fObj; |
| 63 | } |
| 64 | } |
| 65 | T* detach() |
| 66 | { |
| 67 | T* obj = fObj; |
| 68 | fObj = NULL; |
| 69 | return obj; |
| 70 | } |
| 71 | private: |
| 72 | T* fObj; |
| 73 | void* fStorage; |
| 74 | }; |
| 75 | |
| 76 | #endif |