33 lines
925 B
Objective-C
33 lines
925 B
Objective-C
/*
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* This file is part of the SDWebImage package.
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* (c) Olivier Poitrey <rs@dailymotion.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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#import "SDDeviceHelper.h"
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#import <mach/mach.h>
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@implementation SDDeviceHelper
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+ (NSUInteger)totalMemory {
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return (NSUInteger)[[NSProcessInfo processInfo] physicalMemory];
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}
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+ (NSUInteger)freeMemory {
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mach_port_t host_port = mach_host_self();
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mach_msg_type_number_t host_size = sizeof(vm_statistics_data_t) / sizeof(integer_t);
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vm_size_t page_size;
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vm_statistics_data_t vm_stat;
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kern_return_t kern;
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kern = host_page_size(host_port, &page_size);
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if (kern != KERN_SUCCESS) return 0;
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kern = host_statistics(host_port, HOST_VM_INFO, (host_info_t)&vm_stat, &host_size);
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if (kern != KERN_SUCCESS) return 0;
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return vm_stat.free_count * page_size;
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}
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@end
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