зеркало из https://github.com/microsoft/docker.git
61 строка
1.7 KiB
Go
61 строка
1.7 KiB
Go
package platform
|
|
|
|
import (
|
|
"fmt"
|
|
"syscall"
|
|
"unsafe"
|
|
|
|
"golang.org/x/sys/windows"
|
|
)
|
|
|
|
var (
|
|
modkernel32 = windows.NewLazySystemDLL("kernel32.dll")
|
|
procGetSystemInfo = modkernel32.NewProc("GetSystemInfo")
|
|
)
|
|
|
|
// see http://msdn.microsoft.com/en-us/library/windows/desktop/ms724958(v=vs.85).aspx
|
|
type systeminfo struct {
|
|
wProcessorArchitecture uint16
|
|
wReserved uint16
|
|
dwPageSize uint32
|
|
lpMinimumApplicationAddress uintptr
|
|
lpMaximumApplicationAddress uintptr
|
|
dwActiveProcessorMask uintptr
|
|
dwNumberOfProcessors uint32
|
|
dwProcessorType uint32
|
|
dwAllocationGranularity uint32
|
|
wProcessorLevel uint16
|
|
wProcessorRevision uint16
|
|
}
|
|
|
|
// Constants
|
|
const (
|
|
ProcessorArchitecture64 = 9 // PROCESSOR_ARCHITECTURE_AMD64
|
|
ProcessorArchitectureIA64 = 6 // PROCESSOR_ARCHITECTURE_IA64
|
|
ProcessorArchitecture32 = 0 // PROCESSOR_ARCHITECTURE_INTEL
|
|
ProcessorArchitectureArm = 5 // PROCESSOR_ARCHITECTURE_ARM
|
|
)
|
|
|
|
// runtimeArchitecture gets the name of the current architecture (x86, x86_64, …)
|
|
func runtimeArchitecture() (string, error) {
|
|
var sysinfo systeminfo
|
|
syscall.Syscall(procGetSystemInfo.Addr(), 1, uintptr(unsafe.Pointer(&sysinfo)), 0, 0)
|
|
switch sysinfo.wProcessorArchitecture {
|
|
case ProcessorArchitecture64, ProcessorArchitectureIA64:
|
|
return "x86_64", nil
|
|
case ProcessorArchitecture32:
|
|
return "i686", nil
|
|
case ProcessorArchitectureArm:
|
|
return "arm", nil
|
|
default:
|
|
return "", fmt.Errorf("Unknown processor architecture")
|
|
}
|
|
}
|
|
|
|
// NumProcs returns the number of processors on the system
|
|
func NumProcs() uint32 {
|
|
var sysinfo systeminfo
|
|
syscall.Syscall(procGetSystemInfo.Addr(), 1, uintptr(unsafe.Pointer(&sysinfo)), 0, 0)
|
|
return sysinfo.dwNumberOfProcessors
|
|
}
|