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 3 // found in the LICENSE file. 4 5 #ifndef V8_ALLOCATION_H_ 6 #define V8_ALLOCATION_H_ 7 8 #include "src/base/compiler-specific.h" 9 #include "src/globals.h" 10 11 namespace v8 { 12 namespace internal { 13 14 // Called when allocation routines fail to allocate. 15 // This function should not return, but should terminate the current 16 // processing. 17 V8_EXPORT_PRIVATE void FatalProcessOutOfMemory(const char* message); 18 19 // Superclass for classes managed with new & delete. 20 class V8_EXPORT_PRIVATE Malloced { 21 public: new(size_t size)22 void* operator new(size_t size) { return New(size); } delete(void * p)23 void operator delete(void* p) { Delete(p); } 24 25 static void* New(size_t size); 26 static void Delete(void* p); 27 }; 28 29 // DEPRECATED 30 // TODO(leszeks): Delete this during a quiet period 31 #define BASE_EMBEDDED 32 33 34 // Superclass for classes only using static method functions. 35 // The subclass of AllStatic cannot be instantiated at all. 36 class AllStatic { 37 #ifdef DEBUG 38 public: 39 AllStatic() = delete; 40 #endif 41 }; 42 43 44 template <typename T> NewArray(size_t size)45T* NewArray(size_t size) { 46 T* result = new T[size]; 47 if (result == NULL) FatalProcessOutOfMemory("NewArray"); 48 return result; 49 } 50 51 52 template <typename T> DeleteArray(T * array)53void DeleteArray(T* array) { 54 delete[] array; 55 } 56 57 58 // The normal strdup functions use malloc. These versions of StrDup 59 // and StrNDup uses new and calls the FatalProcessOutOfMemory handler 60 // if allocation fails. 61 V8_EXPORT_PRIVATE char* StrDup(const char* str); 62 char* StrNDup(const char* str, int n); 63 64 65 // Allocation policy for allocating in the C free store using malloc 66 // and free. Used as the default policy for lists. 67 class FreeStoreAllocationPolicy { 68 public: INLINE(void * New (size_t size))69 INLINE(void* New(size_t size)) { return Malloced::New(size); } INLINE(static void Delete (void * p))70 INLINE(static void Delete(void* p)) { Malloced::Delete(p); } 71 }; 72 73 74 void* AlignedAlloc(size_t size, size_t alignment); 75 void AlignedFree(void *ptr); 76 77 } // namespace internal 78 } // namespace v8 79 80 #endif // V8_ALLOCATION_H_ 81