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62 lines
1.8 KiB
C++
62 lines
1.8 KiB
C++
#include "util/SystemInfo/SystemInfo.h"
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#include <unistd.h>
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#include <sys/resource.h>
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#include <sys/sysctl.h>
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#include <sys/types.h>
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#include <mach/mach.h>
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#include <mach/processor_info.h>
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#include <mach/mach_host.h>
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#include <mach/kern_return.h>
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// borrowed from https://en.wikichip.org/wiki/resident_set_size#OS_X
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uint64 QueryRamUsage()
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{
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mach_task_basic_info info;
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mach_msg_type_number_t count = MACH_TASK_BASIC_INFO_COUNT;
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if (task_info(mach_task_self(), MACH_TASK_BASIC_INFO, (task_info_t)&info, &count) == KERN_SUCCESS)
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return info.resident_size;
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return 0;
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}
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// apple official documentation is non-existsent.
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// based on https://github.com/giampaolo/psutil/blob/master/psutil/_psutil_osx.c#L623
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void QueryCoreTimes(uint32 count, std::vector<ProcessorTime>& out)
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{
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// initialize default
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for (auto i = 0; i < out.size(); ++i)
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{
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out[i] = {};
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}
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natural_t cpu_count;
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processor_info_array_t info_array;
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mach_msg_type_number_t info_count;
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kern_return_t error;
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mach_port_t host_port = mach_host_self();
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error = host_processor_info(host_port, PROCESSOR_CPU_LOAD_INFO, &cpu_count, &info_array, &info_count);
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mach_port_deallocate(mach_task_self(), host_port);
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if (error != KERN_SUCCESS)
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return;
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processor_cpu_load_info_data_t* cpuLoad = (processor_cpu_load_info_data_t*) info_array;
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for (auto i = 0; i < cpu_count; ++i)
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{
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uint64 system = cpuLoad[i].cpu_ticks[CPU_STATE_SYSTEM];
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uint64 user = cpuLoad[i].cpu_ticks[CPU_STATE_USER] + cpuLoad[i].cpu_ticks[CPU_STATE_NICE];
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uint64 idle = cpuLoad[i].cpu_ticks[CPU_STATE_IDLE];
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out[i].idle = idle;
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out[i].kernel = system;
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out[i].user = user;
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}
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int ret = vm_deallocate(mach_task_self(), (vm_address_t) info_array,
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info_count * sizeof(int));
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if (ret != KERN_SUCCESS)
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cemuLog_log(LogType::Force, "vm_deallocate() failed");
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}
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