98 lines
2.2 KiB
C++
98 lines
2.2 KiB
C++
// Copyright (c) 2011 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "base/sys_info.h"
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#include <errno.h>
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#include <string.h>
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#include <sys/param.h>
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#include <sys/utsname.h>
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#include <unistd.h>
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#include "base/basictypes.h"
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#include "base/file_util.h"
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#include "base/logging.h"
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#include "base/strings/utf_string_conversions.h"
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#include "base/threading/thread_restrictions.h"
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#if defined(OS_ANDROID)
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#include <sys/vfs.h>
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#define statvfs statfs // Android uses a statvfs-like statfs struct and call.
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#else
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#include <sys/statvfs.h>
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#endif
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namespace base {
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#if !defined(OS_OPENBSD)
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int SysInfo::NumberOfProcessors() {
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// It seems that sysconf returns the number of "logical" processors on both
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// Mac and Linux. So we get the number of "online logical" processors.
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long res = sysconf(_SC_NPROCESSORS_ONLN);
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if (res == -1) {
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NOTREACHED();
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return 1;
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}
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return static_cast<int>(res);
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}
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#endif
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// static
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int64 SysInfo::AmountOfFreeDiskSpace(const FilePath& path) {
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base::ThreadRestrictions::AssertIOAllowed();
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struct statvfs stats;
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if (HANDLE_EINTR(statvfs(path.value().c_str(), &stats)) != 0)
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return -1;
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return static_cast<int64>(stats.f_bavail) * stats.f_frsize;
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}
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#if !defined(OS_MACOSX) && !defined(OS_ANDROID)
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// static
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std::string SysInfo::OperatingSystemName() {
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struct utsname info;
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if (uname(&info) < 0) {
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NOTREACHED();
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return std::string();
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}
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return std::string(info.sysname);
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}
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#endif
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#if !defined(OS_MACOSX) && !defined(OS_ANDROID)
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// static
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std::string SysInfo::OperatingSystemVersion() {
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struct utsname info;
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if (uname(&info) < 0) {
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NOTREACHED();
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return std::string();
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}
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return std::string(info.release);
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}
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#endif
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// static
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std::string SysInfo::OperatingSystemArchitecture() {
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struct utsname info;
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if (uname(&info) < 0) {
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NOTREACHED();
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return std::string();
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}
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std::string arch(info.machine);
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if (arch == "i386" || arch == "i486" || arch == "i586" || arch == "i686") {
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arch = "x86";
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} else if (arch == "amd64") {
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arch = "x86_64";
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}
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return arch;
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}
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// static
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size_t SysInfo::VMAllocationGranularity() {
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return getpagesize();
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}
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} // namespace base
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