func (h Host) BasicInfo() *BasicInfo {
host_info := new(BasicInfo)
count := C.mach_msg_type_number_t(C.HOST_BASIC_INFO_COUNT)
if C.host_info(C.host_t(h), C.HOST_BASIC_INFO, (*C.integer_t)(unsafe.Pointer(host_info)), &count) != 0 {
return nil
}
return host_info
}
// Collect populates various cpu performance statistics - use MACH interface
func (s *CPUStat) Collect() {
// collect CPU stats for All cpus aggregated
var cpuinfo C.host_cpu_load_info_data_t
var hostinfo C.host_basic_info_data_t
cpuloadnumber := C.mach_msg_type_number_t(C.HOST_CPU_LOAD_INFO_COUNT)
hostnumber := C.mach_msg_type_number_t(C.HOST_BASIC_INFO_COUNT)
host := C.mach_host_self()
ret := C.host_statistics(C.host_t(host), C.HOST_CPU_LOAD_INFO,
C.host_info_t(unsafe.Pointer(&cpuinfo)), &cpuloadnumber)
if ret != C.KERN_SUCCESS {
return
}
ret = C.host_info(C.host_t(host), C.HOST_BASIC_INFO,
C.host_info_t(unsafe.Pointer(&hostinfo)), &hostnumber)
if ret != C.KERN_SUCCESS {
return
}
s.All.User.Set(uint64(cpuinfo.cpu_ticks[C.CPU_STATE_USER]))
s.All.UserLowPrio.Set(uint64(cpuinfo.cpu_ticks[C.CPU_STATE_NICE]))
s.All.System.Set(uint64(cpuinfo.cpu_ticks[C.CPU_STATE_SYSTEM]))
s.All.Idle.Set(uint64(cpuinfo.cpu_ticks[C.CPU_STATE_IDLE]))
s.All.Total.Set(uint64(cpuinfo.cpu_ticks[C.CPU_STATE_USER]) +
uint64(cpuinfo.cpu_ticks[C.CPU_STATE_SYSTEM]) +
uint64(cpuinfo.cpu_ticks[C.CPU_STATE_NICE]) +
uint64(cpuinfo.cpu_ticks[C.CPU_STATE_IDLE]))
s.All.UsageCount.Set(s.All.Usage())
s.All.UserSpaceCount.Set(s.All.UserSpace())
s.All.KernelCount.Set(s.All.Kernel())
s.All.TotalCount.Set(float64(hostinfo.logical_cpu_max))
}
