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
11namespace v8 {
12namespace internal {
13
14// Called when allocation routines fail to allocate.
15// This function should not return, but should terminate the current
16// processing.
17V8_EXPORT_PRIVATE void FatalProcessOutOfMemory(const char* message);
18
19// Superclass for classes managed with new & delete.
20class V8_EXPORT_PRIVATE Malloced {
21 public:
22  void* operator new(size_t size) { return New(size); }
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.
36class AllStatic {
37#ifdef DEBUG
38 public:
39  AllStatic() = delete;
40#endif
41};
42
43
44template <typename T>
45T* NewArray(size_t size) {
46  T* result = new T[size];
47  if (result == NULL) FatalProcessOutOfMemory("NewArray");
48  return result;
49}
50
51
52template <typename T>
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.
61V8_EXPORT_PRIVATE char* StrDup(const char* str);
62char* 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.
67class FreeStoreAllocationPolicy {
68 public:
69  INLINE(void* New(size_t size)) { return Malloced::New(size); }
70  INLINE(static void Delete(void* p)) { Malloced::Delete(p); }
71};
72
73
74void* AlignedAlloc(size_t size, size_t alignment);
75void AlignedFree(void *ptr);
76
77}  // namespace internal
78}  // namespace v8
79
80#endif  // V8_ALLOCATION_H_
81