// 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 testutils

import (
	"unsafe"

	"golang.org/x/sys/windows"
)

//nolint:gochecknoglobals
var (
	modkernel32 = windows.NewLazySystemDLL("kernel32.dll")

	procGetProcessHandleCount = modkernel32.NewProc("GetProcessHandleCount")
)

func GetProcessHandleCount(handle windows.Handle) (uint32, error) {
	var count uint32

	r1, _, err := procGetProcessHandleCount.Call(
		uintptr(handle),
		uintptr(unsafe.Pointer(&count)),
	)

	if r1 != 1 {
		return 0, err
	}

	return count, nil
}
