mirror of
https://github.com/prometheus-community/windows_exporter.git
synced 2026-10-17 10:09:05 +02:00
61 lines
2.1 KiB
Go
61 lines
2.1 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 kernel32_test
|
|
|
|
import (
|
|
"testing"
|
|
"unsafe"
|
|
|
|
"github.com/prometheus-community/windows_exporter/internal/headers/kernel32"
|
|
"github.com/stretchr/testify/require"
|
|
"golang.org/x/sys/windows"
|
|
)
|
|
|
|
func TestVMCountersEX2Layout(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
var counters kernel32.VM_COUNTERS_EX2
|
|
require.Equal(t, uintptr(112), unsafe.Sizeof(counters))
|
|
require.Equal(t, uintptr(88), unsafe.Offsetof(counters.PrivateUsage))
|
|
require.Equal(t, uintptr(96), unsafe.Offsetof(counters.PrivateWorkingSetSize))
|
|
require.Equal(t, uintptr(104), unsafe.Offsetof(counters.SharedCommitUsage))
|
|
}
|
|
|
|
func TestVMCountersPrivateWorkingSet(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
const allocation = 64 << 20
|
|
|
|
address, err := windows.VirtualAlloc(0, allocation, windows.MEM_RESERVE|windows.MEM_COMMIT, windows.PAGE_READWRITE)
|
|
require.NoError(t, err)
|
|
t.Cleanup(func() { require.NoError(t, windows.VirtualFree(address, 0, windows.MEM_RELEASE)) })
|
|
|
|
// Leave the committed pages untouched so they need not be resident.
|
|
var (
|
|
counters kernel32.VM_COUNTERS_EX2
|
|
returned uint32
|
|
)
|
|
|
|
err = windows.NtQueryInformationProcess(windows.CurrentProcess(), windows.ProcessVmCounters,
|
|
unsafe.Pointer(&counters), uint32(unsafe.Sizeof(counters)), &returned)
|
|
require.NoError(t, err)
|
|
require.Equal(t, uint32(unsafe.Sizeof(counters)), returned)
|
|
require.Greater(t, counters.PrivateWorkingSetSize, uintptr(0))
|
|
require.Greater(t, counters.PrivateUsage, counters.PrivateWorkingSetSize+allocation/2)
|
|
}
|