Zabbix

//go:build windows

// +build windows

​

/*

** Zabbix

** Copyright (C) 2001-2023 Zabbix SIA

**

** This program is free software; you can redistribute it and/or modify

** it under the terms of the GNU General Public License as published by

** the Free Software Foundation; either version 2 of the License, or

** (at your option) any later version.

**

** This program is distributed in the hope that it will be useful,

** but WITHOUT ANY WARRANTY; without even the implied warranty of

** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

** GNU General Public License for more details.

**

** You should have received a copy of the GNU General Public License

** along with this program; if not, write to the Free Software

** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

**/

​

package win32

​

import (

    "syscall"

    "unsafe"

)

​

var (

    hPsapi Hlib

​

    getProcessMemoryInfo uintptr

    getPerformanceInfo   uintptr

)

​

func init() {

    hPsapi = mustLoadLibrary("psapi.dll")

​

    getProcessMemoryInfo = hPsapi.mustGetProcAddress("GetProcessMemoryInfo")

    getPerformanceInfo = hPsapi.mustGetProcAddress("GetPerformanceInfo")

}

​

func GetProcessMemoryInfo(proc syscall.Handle) (mem *PROCESS_MEMORY_COUNTERS_EX, err error) {

    mem = &PROCESS_MEMORY_COUNTERS_EX{}

    mem.Cb = uint32(unsafe.Sizeof(*mem))

    ret, _, syserr := syscall.Syscall(getProcessMemoryInfo, 3, uintptr(proc), uintptr(unsafe.Pointer(mem)), uintptr(mem.Cb))

    if ret == 0 {

        return nil, syserr

    }

    return

}

​

func GetPerformanceInfo() (pinfo *PERFORMANCE_INFORMATION, err error) {

    pinfo = &PERFORMANCE_INFORMATION{}

    pinfo.Cb = uint32(unsafe.Sizeof(*pinfo))

    ret, _, syserr := syscall.Syscall(getPerformanceInfo, 2, uintptr(unsafe.Pointer(pinfo)), uintptr(pinfo.Cb), 0)

    if ret == 0 {

        return nil, syserr

    }

    return

}