1 | /* |
2 | * Copyright (C) 2009 Apple Inc. All rights reserved. |
3 | * |
4 | * Redistribution and use in source and binary forms, with or without |
5 | * modification, are permitted provided that the following conditions |
6 | * are met: |
7 | * 1. Redistributions of source code must retain the above copyright |
8 | * notice, this list of conditions and the following disclaimer. |
9 | * 2. Redistributions in binary form must reproduce the above copyright |
10 | * notice, this list of conditions and the following disclaimer in the |
11 | * documentation and/or other materials provided with the distribution. |
12 | * |
13 | * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY |
14 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
15 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
16 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR |
17 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
18 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
19 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
20 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
21 | * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
22 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
23 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
24 | */ |
25 | |
26 | #include "config.h" |
27 | #include "MarkStack.h" |
28 | |
29 | #if OS(WINDOWS) |
30 | |
31 | #include "windows.h" |
32 | |
33 | namespace JSC { |
34 | |
35 | void MarkStack::initializePagesize() |
36 | { |
37 | SYSTEM_INFO system_info; |
38 | GetSystemInfo(&system_info); |
39 | MarkStack::s_pageSize = system_info.dwPageSize; |
40 | } |
41 | |
42 | void* MarkStack::allocateStack(size_t size) |
43 | { |
44 | return VirtualAlloc(0, size, MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE); |
45 | } |
46 | void MarkStack::releaseStack(void* addr, size_t) |
47 | { |
48 | // According to http://msdn.microsoft.com/en-us/library/aa366892(VS.85).aspx, |
49 | // dwSize must be 0 if dwFreeType is MEM_RELEASE. |
50 | VirtualFree(addr, 0, MEM_RELEASE); |
51 | } |
52 | |
53 | } |
54 | |
55 | #endif |
56 | |