1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/ipc/chromium/src/base/sys_info.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,83 @@
1.4 +// Copyright (c) 2008 The Chromium Authors. All rights reserved.
1.5 +// Use of this source code is governed by a BSD-style license that can be
1.6 +// found in the LICENSE file.
1.7 +
1.8 +#ifndef BASE_SYS_INFO_H_
1.9 +#define BASE_SYS_INFO_H_
1.10 +
1.11 +#include "base/basictypes.h"
1.12 +
1.13 +#include <string>
1.14 +
1.15 +namespace base {
1.16 +
1.17 +class SysInfo {
1.18 + public:
1.19 + // Return the number of logical processors/cores on the current machine.
1.20 + // WARNING: On POSIX, this method uses static variables and is not threadsafe
1.21 + // until it's been initialized by being called once without a race.
1.22 + static int NumberOfProcessors();
1.23 +
1.24 + // Return the number of bytes of physical memory on the current machine.
1.25 + static int64_t AmountOfPhysicalMemory();
1.26 +
1.27 + // Return the number of megabytes of physical memory on the current machine.
1.28 + static int AmountOfPhysicalMemoryMB() {
1.29 + return static_cast<int>(AmountOfPhysicalMemory() / 1024 / 1024);
1.30 + }
1.31 +
1.32 + // Return the available disk space in bytes on the volume containing |path|,
1.33 + // or -1 on failure.
1.34 + static int64_t AmountOfFreeDiskSpace(const std::wstring& path);
1.35 +
1.36 + // Return true if the given environment variable is defined.
1.37 + // TODO: find a better place for HasEnvVar.
1.38 + static bool HasEnvVar(const wchar_t* var);
1.39 +
1.40 + // Return the value of the given environment variable
1.41 + // or an empty string if not defined.
1.42 + // TODO: find a better place for GetEnvVar.
1.43 + static std::wstring GetEnvVar(const wchar_t* var);
1.44 +
1.45 + // Returns the name of the host operating system.
1.46 + static std::string OperatingSystemName();
1.47 +
1.48 + // Returns the version of the host operating system.
1.49 + static std::string OperatingSystemVersion();
1.50 +
1.51 + // Retrieves detailed numeric values for the OS version.
1.52 + // WARNING: On OS X, this method uses static variables and is not threadsafe
1.53 + // until it's been initialized by being called once without a race.
1.54 + // TODO(port): Implement a Linux version of this method and enable the
1.55 + // corresponding unit test.
1.56 + static void OperatingSystemVersionNumbers(int32_t *major_version,
1.57 + int32_t *minor_version,
1.58 + int32_t *bugfix_version);
1.59 +
1.60 + // Returns the CPU architecture of the system. Exact return value may differ
1.61 + // across platforms.
1.62 + static std::string CPUArchitecture();
1.63 +
1.64 + // Returns the pixel dimensions of the primary display via the
1.65 + // width and height parameters.
1.66 + static void GetPrimaryDisplayDimensions(int* width, int* height);
1.67 +
1.68 + // Return the number of displays.
1.69 + static int DisplayCount();
1.70 +
1.71 + // Return the smallest amount of memory (in bytes) which the VM system will
1.72 + // allocate.
1.73 + static size_t VMAllocationGranularity();
1.74 +
1.75 +#if defined(OS_MACOSX)
1.76 + // Under the OS X Sandbox, our access to the system is limited, this call
1.77 + // caches the system info on startup before we turn the Sandbox on.
1.78 + // The above functions are all wired up to return the cached value so the rest
1.79 + // of the code can call them in the Sandbox without worrying.
1.80 + static void CacheSysInfo();
1.81 +#endif
1.82 +};
1.83 +
1.84 +} // namespace base
1.85 +
1.86 +#endif // BASE_SYS_INFO_H_
