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| 1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef V8_ALLOCATION_H_ | 5 #ifndef V8_ALLOCATION_H_ |
| 6 #define V8_ALLOCATION_H_ | 6 #define V8_ALLOCATION_H_ |
| 7 | 7 |
| 8 #include "src/globals.h" | 8 #include "src/globals.h" |
| 9 | 9 |
| 10 namespace v8 { | 10 namespace v8 { |
| 11 namespace internal { | 11 namespace internal { |
| 12 | 12 |
| 13 // Called when allocation routines fail to allocate. | 13 // Called when allocation routines fail to allocate. |
| 14 // This function should not return, but should terminate the current | 14 // This function should not return, but should terminate the current |
| 15 // processing. | 15 // processing. |
| 16 void FatalProcessOutOfMemory(const char* message); | 16 void FatalProcessOutOfMemory(const char* message); |
| 17 | 17 |
| 18 // Superclass for classes managed with new & delete. | 18 // Superclass for classes managed with new & delete. |
| 19 class Malloced { | 19 class Malloced { |
| 20 public: | 20 public: |
| 21 void* operator new(size_t size) { return New(size); } | 21 void* operator new(size_t size) { return New(size); } |
| 22 void operator delete(void* p) { Delete(p); } | 22 void operator delete(void* p) { Delete(p); } |
| 23 | 23 |
| 24 static void FatalProcessOutOfMemory(); | |
| 25 static void* New(size_t size); | 24 static void* New(size_t size); |
| 26 static void Delete(void* p); | 25 static void Delete(void* p); |
| 27 }; | 26 }; |
| 28 | 27 |
| 29 | 28 |
| 30 // A macro is used for defining the base class used for embedded instances. | 29 // A macro is used for defining the base class used for embedded instances. |
| 31 // The reason is some compilers allocate a minimum of one word for the | 30 // The reason is some compilers allocate a minimum of one word for the |
| 32 // superclass. The macro prevents the use of new & delete in debug mode. | 31 // superclass. The macro prevents the use of new & delete in debug mode. |
| 33 // In release mode we are not willing to pay this overhead. | 32 // In release mode we are not willing to pay this overhead. |
| 34 | 33 |
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| 52 public: | 51 public: |
| 53 void* operator new(size_t size); | 52 void* operator new(size_t size); |
| 54 void operator delete(void* p); | 53 void operator delete(void* p); |
| 55 #endif | 54 #endif |
| 56 }; | 55 }; |
| 57 | 56 |
| 58 | 57 |
| 59 template <typename T> | 58 template <typename T> |
| 60 T* NewArray(size_t size) { | 59 T* NewArray(size_t size) { |
| 61 T* result = new T[size]; | 60 T* result = new T[size]; |
| 62 if (result == NULL) Malloced::FatalProcessOutOfMemory(); | 61 if (result == NULL) FatalProcessOutOfMemory("NewArray"); |
| 63 return result; | 62 return result; |
| 64 } | 63 } |
| 65 | 64 |
| 66 | 65 |
| 67 template <typename T> | 66 template <typename T> |
| 68 void DeleteArray(T* array) { | 67 void DeleteArray(T* array) { |
| 69 delete[] array; | 68 delete[] array; |
| 70 } | 69 } |
| 71 | 70 |
| 72 | 71 |
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| 85 INLINE(static void Delete(void* p)) { Malloced::Delete(p); } | 84 INLINE(static void Delete(void* p)) { Malloced::Delete(p); } |
| 86 }; | 85 }; |
| 87 | 86 |
| 88 | 87 |
| 89 void* AlignedAlloc(size_t size, size_t alignment); | 88 void* AlignedAlloc(size_t size, size_t alignment); |
| 90 void AlignedFree(void *ptr); | 89 void AlignedFree(void *ptr); |
| 91 | 90 |
| 92 } } // namespace v8::internal | 91 } } // namespace v8::internal |
| 93 | 92 |
| 94 #endif // V8_ALLOCATION_H_ | 93 #endif // V8_ALLOCATION_H_ |
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