1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/ipc/chromium/src/base/sys_info_posix.cc Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,166 @@
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 +#include "base/sys_info.h"
1.9 +#include "base/basictypes.h"
1.10 +
1.11 +#include <errno.h>
1.12 +#include <string.h>
1.13 +#ifndef ANDROID
1.14 +#include <sys/statvfs.h>
1.15 +#endif
1.16 +#include <sys/utsname.h>
1.17 +#include <unistd.h>
1.18 +
1.19 +#if defined(OS_MACOSX)
1.20 +#include <mach/mach_host.h>
1.21 +#include <mach/mach_init.h>
1.22 +#endif
1.23 +
1.24 +#if defined(OS_NETBSD)
1.25 +#include <sys/param.h>
1.26 +#include <sys/sysctl.h>
1.27 +#endif
1.28 +
1.29 +#include "base/logging.h"
1.30 +#include "base/string_util.h"
1.31 +
1.32 +namespace base {
1.33 +
1.34 +int SysInfo::NumberOfProcessors() {
1.35 + // It seems that sysconf returns the number of "logical" processors on both
1.36 + // mac and linux. So we get the number of "online logical" processors.
1.37 +#ifdef _SC_NPROCESSORS_ONLN
1.38 + static long res = sysconf(_SC_NPROCESSORS_ONLN);
1.39 +#else
1.40 + static long res = 1;
1.41 +#endif
1.42 + if (res == -1) {
1.43 + NOTREACHED();
1.44 + return 1;
1.45 + }
1.46 +
1.47 + return static_cast<int>(res);
1.48 +}
1.49 +
1.50 +// static
1.51 +int64_t SysInfo::AmountOfPhysicalMemory() {
1.52 + // _SC_PHYS_PAGES is not part of POSIX and not available on OS X
1.53 +#if defined(OS_MACOSX)
1.54 + struct host_basic_info hostinfo;
1.55 + mach_msg_type_number_t count = HOST_BASIC_INFO_COUNT;
1.56 + int result = host_info(mach_host_self(),
1.57 + HOST_BASIC_INFO,
1.58 + reinterpret_cast<host_info_t>(&hostinfo),
1.59 + &count);
1.60 + DCHECK_EQ(HOST_BASIC_INFO_COUNT, count);
1.61 + if (result != KERN_SUCCESS) {
1.62 + NOTREACHED();
1.63 + return 0;
1.64 + }
1.65 +
1.66 + return static_cast<int64_t>(hostinfo.max_mem);
1.67 +#elif defined(OS_NETBSD)
1.68 + int mib[2];
1.69 + int rc;
1.70 + int64_t memSize;
1.71 + size_t len = sizeof(memSize);
1.72 +
1.73 + mib[0] = CTL_HW;
1.74 + mib[1] = HW_PHYSMEM64;
1.75 + rc = sysctl( mib, 2, &memSize, &len, NULL, 0 );
1.76 + if (-1 != rc) {
1.77 + return memSize;
1.78 + }
1.79 + return 0;
1.80 +
1.81 +#else
1.82 + long pages = sysconf(_SC_PHYS_PAGES);
1.83 + long page_size = sysconf(_SC_PAGE_SIZE);
1.84 + if (pages == -1 || page_size == -1) {
1.85 + NOTREACHED();
1.86 + return 0;
1.87 + }
1.88 +
1.89 + return static_cast<int64_t>(pages) * page_size;
1.90 +#endif
1.91 +}
1.92 +
1.93 +// static
1.94 +int64_t SysInfo::AmountOfFreeDiskSpace(const std::wstring& path) {
1.95 +#ifndef ANDROID
1.96 + struct statvfs stats;
1.97 + if (statvfs(WideToUTF8(path).c_str(), &stats) != 0) {
1.98 + return -1;
1.99 + }
1.100 + return static_cast<int64_t>(stats.f_bavail) * stats.f_frsize;
1.101 +#else
1.102 + return -1;
1.103 +#endif
1.104 +}
1.105 +
1.106 +// static
1.107 +bool SysInfo::HasEnvVar(const wchar_t* var) {
1.108 + std::string var_utf8 = WideToUTF8(std::wstring(var));
1.109 + return getenv(var_utf8.c_str()) != NULL;
1.110 +}
1.111 +
1.112 +// static
1.113 +std::wstring SysInfo::GetEnvVar(const wchar_t* var) {
1.114 + std::string var_utf8 = WideToUTF8(std::wstring(var));
1.115 + char* value = getenv(var_utf8.c_str());
1.116 + if (!value) {
1.117 + return L"";
1.118 + } else {
1.119 + return UTF8ToWide(value);
1.120 + }
1.121 +}
1.122 +
1.123 +// static
1.124 +std::string SysInfo::OperatingSystemName() {
1.125 + utsname info;
1.126 + if (uname(&info) < 0) {
1.127 + NOTREACHED();
1.128 + return "";
1.129 + }
1.130 + return std::string(info.sysname);
1.131 +}
1.132 +
1.133 +// static
1.134 +std::string SysInfo::OperatingSystemVersion() {
1.135 + utsname info;
1.136 + if (uname(&info) < 0) {
1.137 + NOTREACHED();
1.138 + return "";
1.139 + }
1.140 + return std::string(info.release);
1.141 +}
1.142 +
1.143 +// static
1.144 +std::string SysInfo::CPUArchitecture() {
1.145 + utsname info;
1.146 + if (uname(&info) < 0) {
1.147 + NOTREACHED();
1.148 + return "";
1.149 + }
1.150 + return std::string(info.machine);
1.151 +}
1.152 +
1.153 +// static
1.154 +void SysInfo::GetPrimaryDisplayDimensions(int* width, int* height) {
1.155 + NOTIMPLEMENTED();
1.156 +}
1.157 +
1.158 +// static
1.159 +int SysInfo::DisplayCount() {
1.160 + NOTIMPLEMENTED();
1.161 + return 1;
1.162 +}
1.163 +
1.164 +// static
1.165 +size_t SysInfo::VMAllocationGranularity() {
1.166 + return getpagesize();
1.167 +}
1.168 +
1.169 +} // namespace base
