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