mirror of
https://github.com/cosmo-sims/monofonIC.git
synced 2024-09-19 17:03:45 +02:00
92 lines
2.7 KiB
C++
92 lines
2.7 KiB
C++
#pragma once
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#ifdef __APPLE__
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#include <sys/types.h>
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#include <sys/sysctl.h>
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#include <mach/mach.h>
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#include <mach/vm_statistics.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 <unistd.h>
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#elif __linux__
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#include <cstring>
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#include <cstdio>
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#include <strings.h>
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#endif
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namespace SystemStat {
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class Memory{
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private:
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size_t total;
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size_t avail;
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size_t used;
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public:
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Memory()
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: total(0), avail(0), used(0)
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{
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this->get_statistics();
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}
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size_t get_TotalMem() const { return this->total; }
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size_t get_AvailMem() const { return this->avail; }
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size_t get_UsedMem() const { return this->used; }
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void update(){ this->get_statistics(); }
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protected:
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int get_statistics( void )
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{
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#ifdef __APPLE__
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int pagesize = getpagesize();
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int mib[2] = {CTL_HW, HW_MEMSIZE};
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size_t length = sizeof(size_t);
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sysctl(mib, 2, &this->total, &length, nullptr, 0);
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mach_msg_type_number_t count = HOST_VM_INFO_COUNT;
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vm_statistics_data_t vmstat;
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if(KERN_SUCCESS != host_statistics(mach_host_self(), HOST_VM_INFO, (host_info_t)&vmstat, &count)) {
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return -2;
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}
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this->avail = (int64_t)vmstat.free_count * (int64_t)pagesize;
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this->used = ((int64_t)vmstat.active_count +
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(int64_t)vmstat.inactive_count +
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(int64_t)vmstat.wire_count) * (int64_t)pagesize;
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#elif __linux__
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FILE *fd;
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char buf[1024];
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if((fd = fopen("/proc/meminfo", "r")))
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{
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while(1)
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{
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if(fgets(buf, 500, fd) != buf) break;
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if(bcmp(buf, "MemTotal", 8) == 0)
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{
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this->total = atoll(buf + 10) * 1024; // in Mb
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}
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if(strncmp(buf, "Committed_AS", 12) == 0)
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{
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this->used = atoll(buf + 14) * 1024; // in Mb
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}
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// if(strncmp(buf, "SwapTotal", 9) == 0)
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// {
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// *SwapTotal = atoll(buf + 11);
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// }
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// if(strncmp(buf, "SwapFree", 8) == 0)
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// {
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// *SwapFree = atoll(buf + 10);
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// }
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}
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fclose(fd);
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}
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this->avail = this->total - this->used;
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#endif
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return 0;
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}
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};
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} /* namespace SystemStat */
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