mirror of
https://github.com/moby/moby.git
synced 2022-11-09 12:21:53 -05:00
45 lines
1.1 KiB
Go
45 lines
1.1 KiB
Go
package system
|
|
|
|
import (
|
|
"unsafe"
|
|
|
|
"golang.org/x/sys/windows"
|
|
)
|
|
|
|
var (
|
|
modkernel32 = windows.NewLazySystemDLL("kernel32.dll")
|
|
|
|
procGlobalMemoryStatusEx = modkernel32.NewProc("GlobalMemoryStatusEx")
|
|
)
|
|
|
|
// https://msdn.microsoft.com/en-us/library/windows/desktop/aa366589(v=vs.85).aspx
|
|
// https://msdn.microsoft.com/en-us/library/windows/desktop/aa366770(v=vs.85).aspx
|
|
type memorystatusex struct {
|
|
dwLength uint32
|
|
dwMemoryLoad uint32
|
|
ullTotalPhys uint64
|
|
ullAvailPhys uint64
|
|
ullTotalPageFile uint64
|
|
ullAvailPageFile uint64
|
|
ullTotalVirtual uint64
|
|
ullAvailVirtual uint64
|
|
ullAvailExtendedVirtual uint64
|
|
}
|
|
|
|
// ReadMemInfo retrieves memory statistics of the host system and returns a
|
|
// MemInfo type.
|
|
func ReadMemInfo() (*MemInfo, error) {
|
|
msi := &memorystatusex{
|
|
dwLength: 64,
|
|
}
|
|
r1, _, _ := procGlobalMemoryStatusEx.Call(uintptr(unsafe.Pointer(msi)))
|
|
if r1 == 0 {
|
|
return &MemInfo{}, nil
|
|
}
|
|
return &MemInfo{
|
|
MemTotal: int64(msi.ullTotalPhys),
|
|
MemFree: int64(msi.ullAvailPhys),
|
|
SwapTotal: int64(msi.ullTotalPageFile),
|
|
SwapFree: int64(msi.ullAvailPageFile),
|
|
}, nil
|
|
}
|