1/* 2 * Copyright (C) 2005 Apple Computer, Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of 14 * its contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29#import "WebKitSystemBits.h" 30 31#import "WebNSFileManagerExtras.h" 32#import <mach/host_info.h> 33#import <mach/mach.h> 34#import <mach/mach_error.h> 35#import <sys/sysctl.h> 36#import <sys/types.h> 37#import <wtf/Assertions.h> 38 39static host_basic_info_data_t gHostBasicInfo; 40static pthread_once_t initControl = PTHREAD_ONCE_INIT; 41 42static void initCapabilities(void) 43{ 44 mach_msg_type_number_t count; 45 kern_return_t r; 46 mach_port_t host; 47 48 /* Discover our CPU type */ 49 host = mach_host_self(); 50 count = HOST_BASIC_INFO_COUNT; 51 r = host_info(host, HOST_BASIC_INFO, (host_info_t) &gHostBasicInfo, &count); 52 mach_port_deallocate(mach_task_self(), host); 53 if (r != KERN_SUCCESS) { 54 LOG_ERROR("%s : host_info(%d) : %s.\n", __FUNCTION__, r, mach_error_string(r)); 55 } 56} 57 58uint64_t WebMemorySize(void) 59{ 60 pthread_once(&initControl, initCapabilities); 61 return gHostBasicInfo.max_mem; 62} 63 64int WebNumberOfCPUs(void) 65{ 66 static int numCPUs = 0; 67 68 if (numCPUs == 0) { 69 int mib[2]; 70 size_t len; 71 72 mib[0] = CTL_HW; 73 mib[1] = HW_NCPU; 74 len = sizeof(numCPUs); 75 sysctl(mib, 2, &numCPUs, &len, NULL, 0); 76 } 77 return numCPUs; 78} 79 80unsigned long long WebVolumeFreeSize(NSString *path) 81{ 82 NSDictionary *fileSystemAttributesDictionary = [[NSFileManager defaultManager] attributesOfFileSystemForPath:path error:NULL]; 83 return [[fileSystemAttributesDictionary objectForKey:NSFileSystemFreeSize] unsignedLongLongValue]; 84} 85