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Diffstat (limited to 'ipc/chromium/src/base/sys_info.h')
-rw-r--r-- | ipc/chromium/src/base/sys_info.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/ipc/chromium/src/base/sys_info.h b/ipc/chromium/src/base/sys_info.h new file mode 100644 index 000000000..8c2e116f4 --- /dev/null +++ b/ipc/chromium/src/base/sys_info.h @@ -0,0 +1,65 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +// Copyright (c) 2008 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> + +namespace base { + +class SysInfo { + public: + // Return the number of logical processors/cores on the current machine. + // WARNING: On POSIX, this method uses static variables and is not threadsafe + // until it's been initialized by being called once without a race. + static int NumberOfProcessors(); + + // Return the number of bytes of physical memory on the current machine. + static int64_t 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_t AmountOfFreeDiskSpace(const std::wstring& path); + + // Return true if the given environment variable is defined. + // TODO: find a better place for HasEnvVar. + static bool HasEnvVar(const wchar_t* var); + + // Return the value of the given environment variable + // or an empty string if not defined. + // TODO: find a better place for GetEnvVar. + static std::wstring GetEnvVar(const wchar_t* var); + + // Returns the name of the host operating system. + static std::string OperatingSystemName(); + + // 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(); +}; + +} // namespace base + +#endif // BASE_SYS_INFO_H_ |