1// Copyright 2012 the V8 project authors. All rights reserved.
2// Redistribution and use in source and binary forms, with or without
3// modification, are permitted provided that the following conditions are
4// met:
5//
6//     * Redistributions of source code must retain the above copyright
7//       notice, this list of conditions and the following disclaimer.
8//     * Redistributions in binary form must reproduce the above
9//       copyright notice, this list of conditions and the following
10//       disclaimer in the documentation and/or other materials provided
11//       with the distribution.
12//     * Neither the name of Google Inc. nor the names of its
13//       contributors may be used to endorse or promote products derived
14//       from this software without specific prior written permission.
15//
16// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
28#include "allocation.h"
29
30#include <stdlib.h>  // For free, malloc.
31#include "checks.h"
32#include "platform.h"
33#include "utils.h"
34
35namespace v8 {
36namespace internal {
37
38void* Malloced::New(size_t size) {
39  void* result = malloc(size);
40  if (result == NULL) {
41    v8::internal::FatalProcessOutOfMemory("Malloced operator new");
42  }
43  return result;
44}
45
46
47void Malloced::Delete(void* p) {
48  free(p);
49}
50
51
52void Malloced::FatalProcessOutOfMemory() {
53  v8::internal::FatalProcessOutOfMemory("Out of memory");
54}
55
56
57#ifdef DEBUG
58
59static void* invalid = static_cast<void*>(NULL);
60
61void* Embedded::operator new(size_t size) {
62  UNREACHABLE();
63  return invalid;
64}
65
66
67void Embedded::operator delete(void* p) {
68  UNREACHABLE();
69}
70
71
72void* AllStatic::operator new(size_t size) {
73  UNREACHABLE();
74  return invalid;
75}
76
77
78void AllStatic::operator delete(void* p) {
79  UNREACHABLE();
80}
81
82#endif
83
84
85char* StrDup(const char* str) {
86  int length = StrLength(str);
87  char* result = NewArray<char>(length + 1);
88  OS::MemCopy(result, str, length);
89  result[length] = '\0';
90  return result;
91}
92
93
94char* StrNDup(const char* str, int n) {
95  int length = StrLength(str);
96  if (n < length) length = n;
97  char* result = NewArray<char>(length + 1);
98  OS::MemCopy(result, str, length);
99  result[length] = '\0';
100  return result;
101}
102
103
104void PreallocatedStorage::LinkTo(PreallocatedStorage* other) {
105  next_ = other->next_;
106  other->next_->previous_ = this;
107  previous_ = other;
108  other->next_ = this;
109}
110
111
112void PreallocatedStorage::Unlink() {
113  next_->previous_ = previous_;
114  previous_->next_ = next_;
115}
116
117
118PreallocatedStorage::PreallocatedStorage(size_t size)
119  : size_(size) {
120  previous_ = next_ = this;
121}
122
123} }  // namespace v8::internal
124