46 lines
1.2 KiB
Go
46 lines
1.2 KiB
Go
package psapi
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import (
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"unsafe"
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"golang.org/x/sys/windows"
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)
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// PerformanceInformation is a wrapper of the PERFORMANCE_INFORMATION struct.
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// https://docs.microsoft.com/en-us/windows/win32/api/psapi/ns-psapi-performance_information
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type PerformanceInformation struct {
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cb uint32
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CommitTotal uint
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CommitLimit uint
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CommitPeak uint
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PhysicalTotal uint
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PhysicalAvailable uint
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SystemCache uint
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KernelTotal uint
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KernelPaged uint
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KernelNonpaged uint
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PageSize uint
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HandleCount uint32
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ProcessCount uint32
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ThreadCount uint32
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}
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var (
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psapi = windows.NewLazySystemDLL("psapi.dll")
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procGetPerformanceInfo = psapi.NewProc("GetPerformanceInfo")
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)
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// GetPerformanceInfo returns the dereferenced version of GetLPPerformanceInfo.
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func GetPerformanceInfo() (PerformanceInformation, error) {
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var lppi PerformanceInformation
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size := (uint32)(unsafe.Sizeof(lppi))
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lppi.cb = size
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r1, _, err := procGetPerformanceInfo.Call(uintptr(unsafe.Pointer(&lppi)), uintptr(size))
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if ret := *(*bool)(unsafe.Pointer(&r1)); !ret {
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return PerformanceInformation{}, err
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}
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return lppi, nil
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}
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