Absolute File Name: | /home/opencoverage/opencoverage/guest-scripts/qtdeclarative/src/qtdeclarative/src/3rdparty/masm/wtf/PageBlock.cpp |
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1 | /* | - | ||||||
2 | * Copyright (C) 2010 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. AND ITS CONTRIBUTORS ``AS IS'' | - | ||||||
14 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, | - | ||||||
15 | * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | - | ||||||
16 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS | - | ||||||
17 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | - | ||||||
18 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | - | ||||||
19 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | - | ||||||
20 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | - | ||||||
21 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | - | ||||||
22 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF | - | ||||||
23 | * THE POSSIBILITY OF SUCH DAMAGE. | - | ||||||
24 | */ | - | ||||||
25 | - | |||||||
26 | #include "config.h" | - | ||||||
27 | #include "PageBlock.h" | - | ||||||
28 | - | |||||||
29 | #if OS(UNIX) | - | ||||||
30 | #include <unistd.h> | - | ||||||
31 | #endif | - | ||||||
32 | - | |||||||
33 | #if OS(WINDOWS) | - | ||||||
34 | #include <malloc.h> | - | ||||||
35 | #include <windows.h> | - | ||||||
36 | #endif | - | ||||||
37 | - | |||||||
38 | namespace WTF { | - | ||||||
39 | - | |||||||
40 | static size_t s_pageSize; | - | ||||||
41 | static size_t s_pageMask; | - | ||||||
42 | - | |||||||
43 | #if OS(UNIX) | - | ||||||
44 | - | |||||||
45 | inline size_t systemPageSize() | - | ||||||
46 | { | - | ||||||
47 | return ::sysconf(_SC_PAGESIZE); executed 389 times by 178 tests: return ::sysconf( _SC_PAGESIZE ); Executed by:
| 389 | ||||||
48 | } | - | ||||||
49 | - | |||||||
50 | #elif OS(WINDOWS) | - | ||||||
51 | - | |||||||
52 | inline size_t systemPageSize() | - | ||||||
53 | { | - | ||||||
54 | static size_t size = 0; | - | ||||||
55 | SYSTEM_INFO system_info; | - | ||||||
56 | #if OS(WINRT) | - | ||||||
57 | GetNativeSystemInfo(&system_info); | - | ||||||
58 | #else | - | ||||||
59 | GetSystemInfo(&system_info); | - | ||||||
60 | #endif | - | ||||||
61 | size = system_info.dwPageSize; | - | ||||||
62 | return size; | - | ||||||
63 | } | - | ||||||
64 | - | |||||||
65 | #endif | - | ||||||
66 | - | |||||||
67 | size_t pageSize() | - | ||||||
68 | { | - | ||||||
69 | if (!s_pageSize)
| 389-14491157 | ||||||
70 | s_pageSize = systemPageSize(); executed 389 times by 178 tests: s_pageSize = systemPageSize(); Executed by:
| 389 | ||||||
71 | ASSERT(isPowerOfTwo(s_pageSize)); | - | ||||||
72 | return s_pageSize; executed 14494567 times by 178 tests: return s_pageSize; Executed by:
| 14494567 | ||||||
73 | } | - | ||||||
74 | - | |||||||
75 | size_t pageMask() | - | ||||||
76 | { | - | ||||||
77 | if (!s_pageMask)
| 0 | ||||||
78 | s_pageMask = ~(pageSize() - 1); never executed: s_pageMask = ~(pageSize() - 1); | 0 | ||||||
79 | return s_pageMask; never executed: return s_pageMask; | 0 | ||||||
80 | } | - | ||||||
81 | - | |||||||
82 | } // namespace WTF | - | ||||||
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