15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2011 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/sys_info.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <sys/param.h> 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <sys/shm.h> 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <sys/sysctl.h> 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/logging.h" 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 13c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)namespace { 14c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 15c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)int64 AmountOfMemory(int pages_name) { 16c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) long pages = sysconf(pages_name); 17c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) long page_size = sysconf(_SC_PAGESIZE); 18c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) if (pages == -1 || page_size == -1) { 19c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) NOTREACHED(); 20c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return 0; 21c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) } 22c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return static_cast<int64>(pages) * page_size; 23c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 24c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 25c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} // namespace 26c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace base { 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 29c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// static 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)int SysInfo::NumberOfProcessors() { 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int mib[] = { CTL_HW, HW_NCPU }; 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int ncpu; 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) size_t size = sizeof(ncpu); 34c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) if (sysctl(mib, arraysize(mib), &ncpu, &size, NULL, 0) < 0) { 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) NOTREACHED(); 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return 1; 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return ncpu; 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 41c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// static 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)int64 SysInfo::AmountOfPhysicalMemory() { 43c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return AmountOfMemory(_SC_PHYS_PAGES); 44c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 46c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// static 47c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)int64 SysInfo::AmountOfAvailablePhysicalMemory() { 48c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return AmountOfMemory(_SC_AVPHYS_PAGES); 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 51c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// static 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)size_t SysInfo::MaxSharedMemorySize() { 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int mib[] = { CTL_KERN, KERN_SHMINFO, KERN_SHMINFO_SHMMAX }; 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) size_t limit; 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) size_t size = sizeof(limit); 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (sysctl(mib, arraysize(mib), &limit, &size, NULL, 0) < 0) { 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) NOTREACHED(); 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return 0; 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return limit; 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 63c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// static 64c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)std::string SysInfo::CPUModelName() { 65c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) int mib[] = { CTL_HW, HW_MODEL }; 66c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) char name[256]; 67c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) size_t len = arraysize(name); 68c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) if (sysctl(mib, arraysize(mib), name, &len, NULL, 0) < 0) { 69c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) NOTREACHED(); 70c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return std::string(); 71c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) } 72c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return name; 73c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 74c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace base 76