blob: 1bb4eca4de76fd61bdd0bc6954c39d6255d4784d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
|
// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef BASE_SYS_INFO_H_
#define BASE_SYS_INFO_H_
#include "base/basictypes.h"
#include <string>
class FilePath;
namespace base {
class SysInfo {
public:
// Return the number of logical processors/cores on the current machine.
static int NumberOfProcessors();
// Return the number of bytes of physical memory on the current machine.
static int64 AmountOfPhysicalMemory();
// Return the number of megabytes of physical memory on the current machine.
static int AmountOfPhysicalMemoryMB() {
return static_cast<int>(AmountOfPhysicalMemory() / 1024 / 1024);
}
// Return the available disk space in bytes on the volume containing |path|,
// or -1 on failure.
static int64 AmountOfFreeDiskSpace(const FilePath& path);
// Returns the name of the host operating system.
static std::string OperatingSystemName();
// Returns the version of the host operating system.
static std::string OperatingSystemVersion();
// Retrieves detailed numeric values for the OS version.
// TODO(port): Implement a Linux version of this method and enable the
// corresponding unit test.
static void OperatingSystemVersionNumbers(int32 *major_version,
int32 *minor_version,
int32 *bugfix_version);
// Returns the CPU architecture of the system. Exact return value may differ
// across platforms.
static std::string CPUArchitecture();
// Returns the pixel dimensions of the primary display via the
// width and height parameters.
static void GetPrimaryDisplayDimensions(int* width, int* height);
// Return the number of displays.
static int DisplayCount();
// Return the smallest amount of memory (in bytes) which the VM system will
// allocate.
static size_t VMAllocationGranularity();
#if defined(OS_POSIX) && !defined(OS_MACOSX)
// Returns the maximum SysV shared memory segment size.
static size_t MaxSharedMemorySize();
#endif
#if defined(OS_CHROMEOS)
// Returns the name of the version entry we wish to look up in the
// Linux Standard Base release information file.
static std::string GetLinuxStandardBaseVersionKey();
// Parses /etc/lsb-release to get version information for Google Chrome OS.
// Declared here so it can be exposed for unit testing.
static void ParseLsbRelease(const std::string& lsb_release,
int32 *major_version,
int32 *minor_version,
int32 *bugfix_version);
#endif
};
} // namespace base
#endif // BASE_SYS_INFO_H_
|
