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ipc/chromium/src/base/sys_info_posix.cc@6474c204b198 (annotated)

ipc/chromium/src/base/sys_info_posix.cc

Wed, 31 Dec 2014 06:09:35 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Wed, 31 Dec 2014 06:09:35 +0100

changeset 0

6474c204b198

permissions

-rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

michael@0	1	// Copyright (c) 2008 The Chromium Authors. All rights reserved.
michael@0	2	// Use of this source code is governed by a BSD-style license that can be
michael@0	3	// found in the LICENSE file.
michael@0	4
michael@0	5	#include "base/sys_info.h"
michael@0	6	#include "base/basictypes.h"
michael@0	7
michael@0	8	#include <errno.h>
michael@0	9	#include <string.h>
michael@0	10	#ifndef ANDROID
michael@0	11	#include <sys/statvfs.h>
michael@0	12	#endif
michael@0	13	#include <sys/utsname.h>
michael@0	14	#include <unistd.h>
michael@0	15
michael@0	16	#if defined(OS_MACOSX)
michael@0	17	#include <mach/mach_host.h>
michael@0	18	#include <mach/mach_init.h>
michael@0	19	#endif
michael@0	20
michael@0	21	#if defined(OS_NETBSD)
michael@0	22	#include <sys/param.h>
michael@0	23	#include <sys/sysctl.h>
michael@0	24	#endif
michael@0	25
michael@0	26	#include "base/logging.h"
michael@0	27	#include "base/string_util.h"
michael@0	28
michael@0	29	namespace base {
michael@0	30
michael@0	31	int SysInfo::NumberOfProcessors() {
michael@0	32	// It seems that sysconf returns the number of "logical" processors on both
michael@0	33	// mac and linux. So we get the number of "online logical" processors.
michael@0	34	#ifdef _SC_NPROCESSORS_ONLN
michael@0	35	static long res = sysconf(_SC_NPROCESSORS_ONLN);
michael@0	36	#else
michael@0	37	static long res = 1;
michael@0	38	#endif
michael@0	39	if (res == -1) {
michael@0	40	NOTREACHED();
michael@0	41	return 1;
michael@0	42	}
michael@0	43
michael@0	44	return static_cast<int>(res);
michael@0	45	}
michael@0	46
michael@0	47	// static
michael@0	48	int64_t SysInfo::AmountOfPhysicalMemory() {
michael@0	49	// _SC_PHYS_PAGES is not part of POSIX and not available on OS X
michael@0	50	#if defined(OS_MACOSX)
michael@0	51	struct host_basic_info hostinfo;
michael@0	52	mach_msg_type_number_t count = HOST_BASIC_INFO_COUNT;
michael@0	53	int result = host_info(mach_host_self(),
michael@0	54	HOST_BASIC_INFO,
michael@0	55	reinterpret_cast<host_info_t>(&hostinfo),
michael@0	56	&count);
michael@0	57	DCHECK_EQ(HOST_BASIC_INFO_COUNT, count);
michael@0	58	if (result != KERN_SUCCESS) {
michael@0	59	NOTREACHED();
michael@0	60	return 0;
michael@0	61	}
michael@0	62
michael@0	63	return static_cast<int64_t>(hostinfo.max_mem);
michael@0	64	#elif defined(OS_NETBSD)
michael@0	65	int mib[2];
michael@0	66	int rc;
michael@0	67	int64_t memSize;
michael@0	68	size_t len = sizeof(memSize);
michael@0	69
michael@0	70	mib[0] = CTL_HW;
michael@0	71	mib[1] = HW_PHYSMEM64;
michael@0	72	rc = sysctl( mib, 2, &memSize, &len, NULL, 0 );
michael@0	73	if (-1 != rc) {
michael@0	74	return memSize;
michael@0	75	}
michael@0	76	return 0;
michael@0	77
michael@0	78	#else
michael@0	79	long pages = sysconf(_SC_PHYS_PAGES);
michael@0	80	long page_size = sysconf(_SC_PAGE_SIZE);
michael@0	81	if (pages == -1 || page_size == -1) {
michael@0	82	NOTREACHED();
michael@0	83	return 0;
michael@0	84	}
michael@0	85
michael@0	86	return static_cast<int64_t>(pages) * page_size;
michael@0	87	#endif
michael@0	88	}
michael@0	89
michael@0	90	// static
michael@0	91	int64_t SysInfo::AmountOfFreeDiskSpace(const std::wstring& path) {
michael@0	92	#ifndef ANDROID
michael@0	93	struct statvfs stats;
michael@0	94	if (statvfs(WideToUTF8(path).c_str(), &stats) != 0) {
michael@0	95	return -1;
michael@0	96	}
michael@0	97	return static_cast<int64_t>(stats.f_bavail) * stats.f_frsize;
michael@0	98	#else
michael@0	99	return -1;
michael@0	100	#endif
michael@0	101	}
michael@0	102
michael@0	103	// static
michael@0	104	bool SysInfo::HasEnvVar(const wchar_t* var) {
michael@0	105	std::string var_utf8 = WideToUTF8(std::wstring(var));
michael@0	106	return getenv(var_utf8.c_str()) != NULL;
michael@0	107	}
michael@0	108
michael@0	109	// static
michael@0	110	std::wstring SysInfo::GetEnvVar(const wchar_t* var) {
michael@0	111	std::string var_utf8 = WideToUTF8(std::wstring(var));
michael@0	112	char* value = getenv(var_utf8.c_str());
michael@0	113	if (!value) {
michael@0	114	return L"";
michael@0	115	} else {
michael@0	116	return UTF8ToWide(value);
michael@0	117	}
michael@0	118	}
michael@0	119
michael@0	120	// static
michael@0	121	std::string SysInfo::OperatingSystemName() {
michael@0	122	utsname info;
michael@0	123	if (uname(&info) < 0) {
michael@0	124	NOTREACHED();
michael@0	125	return "";
michael@0	126	}
michael@0	127	return std::string(info.sysname);
michael@0	128	}
michael@0	129
michael@0	130	// static
michael@0	131	std::string SysInfo::OperatingSystemVersion() {
michael@0	132	utsname info;
michael@0	133	if (uname(&info) < 0) {
michael@0	134	NOTREACHED();
michael@0	135	return "";
michael@0	136	}
michael@0	137	return std::string(info.release);
michael@0	138	}
michael@0	139
michael@0	140	// static
michael@0	141	std::string SysInfo::CPUArchitecture() {
michael@0	142	utsname info;
michael@0	143	if (uname(&info) < 0) {
michael@0	144	NOTREACHED();
michael@0	145	return "";
michael@0	146	}
michael@0	147	return std::string(info.machine);
michael@0	148	}
michael@0	149
michael@0	150	// static
michael@0	151	void SysInfo::GetPrimaryDisplayDimensions(int* width, int* height) {
michael@0	152	NOTIMPLEMENTED();
michael@0	153	}
michael@0	154
michael@0	155	// static
michael@0	156	int SysInfo::DisplayCount() {
michael@0	157	NOTIMPLEMENTED();
michael@0	158	return 1;
michael@0	159	}
michael@0	160
michael@0	161	// static
michael@0	162	size_t SysInfo::VMAllocationGranularity() {
michael@0	163	return getpagesize();
michael@0	164	}
michael@0	165
michael@0	166	} // namespace base