The Tor Browser / file comparison
comparison: js/src/yarr/PageBlock.cpp
js/src/yarr/PageBlock.cpp
- changeset 0
- 6474c204b198
equal
deleted
inserted
replaced
| -1:000000000000 | 0:ceaa7f2df3a7 |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- | |
| 2 * vim: set ts=8 sts=4 et sw=4 tw=99: | |
| 3 * | |
| 4 * ***** BEGIN LICENSE BLOCK ***** | |
| 5 * Copyright (C) 2010 Apple Inc. All rights reserved. | |
| 6 * | |
| 7 * Redistribution and use in source and binary forms, with or without | |
| 8 * modification, are permitted provided that the following conditions | |
| 9 * are met: | |
| 10 * 1. Redistributions of source code must retain the above copyright | |
| 11 * notice, this list of conditions and the following disclaimer. | |
| 12 * 2. Redistributions in binary form must reproduce the above copyright | |
| 13 * notice, this list of conditions and the following disclaimer in the | |
| 14 * documentation and/or other materials provided with the distribution. | |
| 15 * | |
| 16 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' | |
| 17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, | |
| 18 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS | |
| 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
| 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
| 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
| 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
| 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF | |
| 26 * THE POSSIBILITY OF SUCH DAMAGE. | |
| 27 * | |
| 28 * ***** END LICENSE BLOCK ***** */ | |
| 29 | |
| 30 #include "yarr/PageBlock.h" | |
| 31 #include "assembler/wtf/Assertions.h" | |
| 32 | |
| 33 #if WTF_OS_UNIX && !WTF_OS_SYMBIAN | |
| 34 #include <unistd.h> | |
| 35 #endif | |
| 36 | |
| 37 #if WTF_OS_WINDOWS | |
| 38 #include <malloc.h> | |
| 39 #include <windows.h> | |
| 40 #endif | |
| 41 | |
| 42 #if WTF_OS_SYMBIAN | |
| 43 #include <e32hal.h> | |
| 44 #include <e32std.h> | |
| 45 #endif | |
| 46 | |
| 47 #if WTF_OS_OS2 | |
| 48 #include <stdlib.h> | |
| 49 #endif | |
| 50 | |
| 51 namespace WTF { | |
| 52 | |
| 53 static size_t s_pageSize; | |
| 54 | |
| 55 #if (WTF_OS_UNIX && !WTF_OS_SYMBIAN) || WTF_OS_OS2 | |
| 56 | |
| 57 inline size_t systemPageSize() | |
| 58 { | |
| 59 return getpagesize(); | |
| 60 } | |
| 61 | |
| 62 #elif WTF_OS_WINDOWS | |
| 63 | |
| 64 inline size_t systemPageSize() | |
| 65 { | |
| 66 static size_t size = 0; | |
| 67 SYSTEM_INFO system_info; | |
| 68 GetSystemInfo(&system_info); | |
| 69 size = system_info.dwPageSize; | |
| 70 return size; | |
| 71 } | |
| 72 | |
| 73 #elif WTF_OS_SYMBIAN | |
| 74 | |
| 75 inline size_t systemPageSize() | |
| 76 { | |
| 77 static TInt page_size = 0; | |
| 78 UserHal::PageSizeInBytes(page_size); | |
| 79 return page_size; | |
| 80 } | |
| 81 | |
| 82 #endif | |
| 83 | |
| 84 size_t pageSize() | |
| 85 { | |
| 86 if (!s_pageSize) | |
| 87 s_pageSize = systemPageSize(); | |
| 88 ASSERT(isPowerOfTwo(s_pageSize)); | |
| 89 return s_pageSize; | |
| 90 } | |
| 91 | |
| 92 } // namespace WTF |
