65 lines
1.6 KiB
C++
65 lines
1.6 KiB
C++
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#include <string>
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#include <sstring>
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#include <fstring>
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#include <mach/vm_statistics.h>
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#include <mach/processor_info.h>
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#include <mach/mach_types.h>
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#include <mach/mach_init.h>
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#include <mach/mach_host.h>
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#include <mach/host_info.h>
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#include <mach/mach_error.h>
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#include <mach/vm_map.h>
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#include <mach/mach.h>
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#include <sys/sysctl.h> // for sysctl
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#include <sys/types.h> // for integer types
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std::string mem_string( bool use_colors ) {
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std::ostringstream oss;
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// These values are in bytes
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int64_t total_mem;
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int64_t used_mem;
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int64_t unused_mem;
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vm_size_t page_size;
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mach_port_t mach_port;
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mach_msg_type_number_t count;
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vm_statistics_data_t vm_stats;
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// Get total physical memory
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int mib[2];
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mib[0] = CTL_HW;
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mib[1] = HW_MEMSIZE;
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size_t length = sizeof(int64_t);
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sysctl(mib, 2, &total_mem, &length, NULL, 0);
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mach_port = mach_host_self();
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count = sizeof(vm_stats) / sizeof(natural_t);
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if (KERN_SUCCESS == host_page_size( mach_port, &page_size) &&
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KERN_SUCCESS == host_statistics(mach_port, HOST_VM_INFO,
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(host_info_t)&vm_stats, &count)) {
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unused_mem = (int64_t)vm_stats.free_count * (int64_t)page_size;
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used_mem = (
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(int64_t)vm_stats.active_count +
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(int64_t)vm_stats.inactive_count +
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(int64_t)vm_stats.wire_count) *
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(int64_t)page_size;
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}
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// To kilobytes
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used_mem /= 1024;
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total_mem /= 1024;
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if( use_colors )
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oss << mem_lut[(100 * used_mem) / total_mem];
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oss << used_mem / 1024 << '/' << total_mem / 1024 << "MB";
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if( use_colors )
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oss << "#[fg=default,bg=default]";
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return oss.str();
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}
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