js/src/yarr/PageBlock.cpp@6474c204b198 (annotated)
js/src/yarr/PageBlock.cpp
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- |
| michael@0 | 2 | * vim: set ts=8 sts=4 et sw=4 tw=99: |
| michael@0 | 3 | * |
| michael@0 | 4 | * ***** BEGIN LICENSE BLOCK ***** |
| michael@0 | 5 | * Copyright (C) 2010 Apple Inc. All rights reserved. |
| michael@0 | 6 | * |
| michael@0 | 7 | * Redistribution and use in source and binary forms, with or without |
| michael@0 | 8 | * modification, are permitted provided that the following conditions |
| michael@0 | 9 | * are met: |
| michael@0 | 10 | * 1. Redistributions of source code must retain the above copyright |
| michael@0 | 11 | * notice, this list of conditions and the following disclaimer. |
| michael@0 | 12 | * 2. Redistributions in binary form must reproduce the above copyright |
| michael@0 | 13 | * notice, this list of conditions and the following disclaimer in the |
| michael@0 | 14 | * documentation and/or other materials provided with the distribution. |
| michael@0 | 15 | * |
| michael@0 | 16 | * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' |
| michael@0 | 17 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| michael@0 | 18 | * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| michael@0 | 19 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS |
| michael@0 | 20 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| michael@0 | 21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| michael@0 | 22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| michael@0 | 23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| michael@0 | 24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| michael@0 | 25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| michael@0 | 26 | * THE POSSIBILITY OF SUCH DAMAGE. |
| michael@0 | 27 | * |
| michael@0 | 28 | * ***** END LICENSE BLOCK ***** */ |
| michael@0 | 29 | |
| michael@0 | 30 | #include "yarr/PageBlock.h" |
| michael@0 | 31 | #include "assembler/wtf/Assertions.h" |
| michael@0 | 32 | |
| michael@0 | 33 | #if WTF_OS_UNIX && !WTF_OS_SYMBIAN |
| michael@0 | 34 | #include <unistd.h> |
| michael@0 | 35 | #endif |
| michael@0 | 36 | |
| michael@0 | 37 | #if WTF_OS_WINDOWS |
| michael@0 | 38 | #include <malloc.h> |
| michael@0 | 39 | #include <windows.h> |
| michael@0 | 40 | #endif |
| michael@0 | 41 | |
| michael@0 | 42 | #if WTF_OS_SYMBIAN |
| michael@0 | 43 | #include <e32hal.h> |
| michael@0 | 44 | #include <e32std.h> |
| michael@0 | 45 | #endif |
| michael@0 | 46 | |
| michael@0 | 47 | #if WTF_OS_OS2 |
| michael@0 | 48 | #include <stdlib.h> |
| michael@0 | 49 | #endif |
| michael@0 | 50 | |
| michael@0 | 51 | namespace WTF { |
| michael@0 | 52 | |
| michael@0 | 53 | static size_t s_pageSize; |
| michael@0 | 54 | |
| michael@0 | 55 | #if (WTF_OS_UNIX && !WTF_OS_SYMBIAN) || WTF_OS_OS2 |
| michael@0 | 56 | |
| michael@0 | 57 | inline size_t systemPageSize() |
| michael@0 | 58 | { |
| michael@0 | 59 | return getpagesize(); |
| michael@0 | 60 | } |
| michael@0 | 61 | |
| michael@0 | 62 | #elif WTF_OS_WINDOWS |
| michael@0 | 63 | |
| michael@0 | 64 | inline size_t systemPageSize() |
| michael@0 | 65 | { |
| michael@0 | 66 | static size_t size = 0; |
| michael@0 | 67 | SYSTEM_INFO system_info; |
| michael@0 | 68 | GetSystemInfo(&system_info); |
| michael@0 | 69 | size = system_info.dwPageSize; |
| michael@0 | 70 | return size; |
| michael@0 | 71 | } |
| michael@0 | 72 | |
| michael@0 | 73 | #elif WTF_OS_SYMBIAN |
| michael@0 | 74 | |
| michael@0 | 75 | inline size_t systemPageSize() |
| michael@0 | 76 | { |
| michael@0 | 77 | static TInt page_size = 0; |
| michael@0 | 78 | UserHal::PageSizeInBytes(page_size); |
| michael@0 | 79 | return page_size; |
| michael@0 | 80 | } |
| michael@0 | 81 | |
| michael@0 | 82 | #endif |
| michael@0 | 83 | |
| michael@0 | 84 | size_t pageSize() |
| michael@0 | 85 | { |
| michael@0 | 86 | if (!s_pageSize) |
| michael@0 | 87 | s_pageSize = systemPageSize(); |
| michael@0 | 88 | ASSERT(isPowerOfTwo(s_pageSize)); |
| michael@0 | 89 | return s_pageSize; |
| michael@0 | 90 | } |
| michael@0 | 91 | |
| michael@0 | 92 | } // namespace WTF |
