mirror of
https://github.com/prometheus-community/windows_exporter.git
synced 2026-02-08 14:06:38 +00:00
131 lines
4.1 KiB
Go
131 lines
4.1 KiB
Go
// SPDX-License-Identifier: Apache-2.0
|
|
//
|
|
// Copyright The Prometheus Authors
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
//go:build windows
|
|
|
|
package hcs
|
|
|
|
import (
|
|
"fmt"
|
|
"unsafe"
|
|
|
|
"golang.org/x/sys/windows"
|
|
)
|
|
|
|
//nolint:gochecknoglobals
|
|
var (
|
|
modComputeCore = windows.NewLazySystemDLL("computecore.dll")
|
|
|
|
procHcsCreateOperation = modComputeCore.NewProc("HcsCreateOperation")
|
|
procHcsWaitForOperationResult = modComputeCore.NewProc("HcsWaitForOperationResult")
|
|
procHcsCloseOperation = modComputeCore.NewProc("HcsCloseOperation")
|
|
procHcsEnumerateComputeSystems = modComputeCore.NewProc("HcsEnumerateComputeSystems")
|
|
procHcsOpenComputeSystem = modComputeCore.NewProc("HcsOpenComputeSystem")
|
|
procHcsGetComputeSystemProperties = modComputeCore.NewProc("HcsGetComputeSystemProperties")
|
|
procHcsCloseComputeSystem = modComputeCore.NewProc("HcsCloseComputeSystem")
|
|
)
|
|
|
|
// CreateOperation creates a new operation.
|
|
func CreateOperation() (Operation, error) {
|
|
r1, r2, _ := procHcsCreateOperation.Call(0, 0)
|
|
if r2 != 0 {
|
|
return 0, fmt.Errorf("HcsCreateOperation failed: HRESULT 0x%X: %w", r2, Win32FromHResult(r2))
|
|
}
|
|
|
|
return Operation(r1), nil
|
|
}
|
|
|
|
func WaitForOperationResult(operation Operation, timeout uint32) (string, error) {
|
|
var resultDocument *uint16
|
|
|
|
r1, _, _ := procHcsWaitForOperationResult.Call(uintptr(operation), uintptr(timeout), uintptr(unsafe.Pointer(&resultDocument)))
|
|
if r1 != 0 {
|
|
return "", fmt.Errorf("HcsWaitForOperationResult failed: HRESULT 0x%X: %w", r1, Win32FromHResult(r1))
|
|
}
|
|
|
|
result := windows.UTF16PtrToString(resultDocument)
|
|
windows.CoTaskMemFree(unsafe.Pointer(resultDocument))
|
|
|
|
return result, nil
|
|
}
|
|
|
|
// CloseOperation closes an operation.
|
|
func CloseOperation(operation Operation) {
|
|
_, _, _ = procHcsCloseOperation.Call(uintptr(operation))
|
|
}
|
|
|
|
// EnumerateComputeSystems enumerates compute systems.
|
|
//
|
|
// https://learn.microsoft.com/en-us/virtualization/api/hcs/reference/hcsenumeratecomputesystems
|
|
func EnumerateComputeSystems(query *uint16, operation Operation) error {
|
|
r1, _, _ := procHcsEnumerateComputeSystems.Call(uintptr(unsafe.Pointer(query)), uintptr(operation))
|
|
if r1 != 0 {
|
|
return fmt.Errorf("HcsEnumerateComputeSystems failed: HRESULT 0x%X: %w", r1, Win32FromHResult(r1))
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// OpenComputeSystem opens a handle to an existing compute system.
|
|
//
|
|
// https://learn.microsoft.com/en-us/virtualization/api/hcs/reference/hcsopencomputesystem
|
|
func OpenComputeSystem(id string) (ComputeSystem, error) {
|
|
idPtr, err := windows.UTF16PtrFromString(id)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
|
|
var system ComputeSystem
|
|
|
|
r1, _, _ := procHcsOpenComputeSystem.Call(
|
|
uintptr(unsafe.Pointer(idPtr)),
|
|
uintptr(windows.GENERIC_ALL),
|
|
uintptr(unsafe.Pointer(&system)),
|
|
)
|
|
if r1 != 0 {
|
|
return 0, fmt.Errorf("HcsOpenComputeSystem failed: HRESULT 0x%X: %w", r1, Win32FromHResult(r1))
|
|
}
|
|
|
|
return system, nil
|
|
}
|
|
|
|
func GetComputeSystemProperties(system ComputeSystem, operation Operation, propertyQuery *uint16) error {
|
|
r1, _, err := procHcsGetComputeSystemProperties.Call(
|
|
uintptr(system),
|
|
uintptr(operation),
|
|
uintptr(unsafe.Pointer(propertyQuery)),
|
|
)
|
|
if r1 != 0 {
|
|
return fmt.Errorf("HcsGetComputeSystemProperties failed: HRESULT 0x%X: %w", r1, err)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// CloseComputeSystem closes a handle to a compute system.
|
|
//
|
|
// https://learn.microsoft.com/en-us/virtualization/api/hcs/reference/hcsclosecomputesystem
|
|
func CloseComputeSystem(system ComputeSystem) {
|
|
_, _, _ = procHcsCloseComputeSystem.Call(uintptr(system))
|
|
}
|
|
|
|
func Win32FromHResult(hr uintptr) windows.Errno {
|
|
if hr&0x1fff0000 == 0x00070000 {
|
|
return windows.Errno(hr & 0xffff)
|
|
}
|
|
|
|
return windows.Errno(hr)
|
|
}
|