dashboard: CPU, memory, diskIO and traffic on the footer (#15950)

* dashboard: footer, deep state update

* dashboard: resolve asset path

* dashboard: prevent state update on every reconnection

* dashboard: fix linter issue

* dashboard, cmd: minor UI fix, include commit hash

* dashboard: gitCommit renamed to commit

* dashboard: move the geth version to the right, make commit optional

* dashboard: memory, traffic and CPU on footer

* dashboard: fix merge

* dashboard: CPU, diskIO on footer

* dashboard: rename variables, use group declaration

* dashboard: docs

6 files changed, 1094 insertions, 0 deletions

diff --git a/vendor/github.com/elastic/gosigar/sys/windows/doc.go b/vendor/github.com/elastic/gosigar/sys/windows/doc.go
new file mode 100644
index 000000000..dda57aa83
--- /dev/null
+++ b/vendor/github.com/elastic/gosigar/sys/windows/doc.go
@@ -0,0 +1,2 @@
+// Package windows contains various Windows system call.
+package windows
diff --git a/vendor/github.com/elastic/gosigar/sys/windows/ntquery.go b/vendor/github.com/elastic/gosigar/sys/windows/ntquery.go
new file mode 100644
index 000000000..85de365e1
--- /dev/null
+++ b/vendor/github.com/elastic/gosigar/sys/windows/ntquery.go
@@ -0,0 +1,132 @@
+// +build windows
+
+package windows
+
+import (
+	"bytes"
+	"encoding/binary"
+	"io"
+	"runtime"
+	"syscall"
+	"time"
+	"unsafe"
+
+	"github.com/pkg/errors"
+)
+
+// On both 32-bit and 64-bit systems NtQuerySystemInformation expects the
+// size of SYSTEM_PROCESSOR_PERFORMANCE_INFORMATION to be 48.
+const sizeofSystemProcessorPerformanceInformation = 48
+
+// ProcessBasicInformation is an equivalent representation of
+// PROCESS_BASIC_INFORMATION in the Windows API.
+// https://msdn.microsoft.com/en-us/library/windows/desktop/ms684280(v=vs.85).aspx
+type ProcessBasicInformation struct {
+	ExitStatus                   uint
+	PebBaseAddress               uintptr
+	AffinityMask                 uint
+	BasePriority                 uint
+	UniqueProcessID              uint
+	InheritedFromUniqueProcessID uint
+}
+
+// NtQueryProcessBasicInformation queries basic information about the process
+// associated with the given handle (provided by OpenProcess). It uses the
+// NtQueryInformationProcess function to collect the data.
+// https://msdn.microsoft.com/en-us/library/windows/desktop/ms684280(v=vs.85).aspx
+func NtQueryProcessBasicInformation(handle syscall.Handle) (ProcessBasicInformation, error) {
+	var processBasicInfo ProcessBasicInformation
+	processBasicInfoPtr := (*byte)(unsafe.Pointer(&processBasicInfo))
+	size := uint32(unsafe.Sizeof(processBasicInfo))
+	ntStatus, _ := _NtQueryInformationProcess(handle, 0, processBasicInfoPtr, size, nil)
+	if ntStatus != 0 {
+		return ProcessBasicInformation{}, errors.Errorf("NtQueryInformationProcess failed, NTSTATUS=0x%X", ntStatus)
+	}
+
+	return processBasicInfo, nil
+}
+
+// SystemProcessorPerformanceInformation contains CPU performance information
+// for a single CPU.
+type SystemProcessorPerformanceInformation struct {
+	IdleTime   time.Duration // Amount of time spent idle.
+	KernelTime time.Duration // Kernel time does NOT include time spent in idle.
+	UserTime   time.Duration // Amount of time spent executing in user mode.
+}
+
+// _SYSTEM_PROCESSOR_PERFORMANCE_INFORMATION is an equivalent representation of
+// SYSTEM_PROCESSOR_PERFORMANCE_INFORMATION in the Windows API. This struct is
+// used internally with NtQuerySystemInformation call and is not exported. The
+// exported equivalent is SystemProcessorPerformanceInformation.
+// https://msdn.microsoft.com/en-us/library/windows/desktop/ms724509(v=vs.85).aspx
+type _SYSTEM_PROCESSOR_PERFORMANCE_INFORMATION struct {
+	IdleTime   int64
+	KernelTime int64
+	UserTime   int64
+	Reserved1  [2]int64
+	Reserved2  uint32
+}
+
+// NtQuerySystemProcessorPerformanceInformation queries CPU performance
+// information for each CPU. It uses the NtQuerySystemInformation function to
+// collect the SystemProcessorPerformanceInformation.
+// https://msdn.microsoft.com/en-us/library/windows/desktop/ms724509(v=vs.85).aspx
+func NtQuerySystemProcessorPerformanceInformation() ([]SystemProcessorPerformanceInformation, error) {
+	// NTSTATUS code for success.
+	// https://msdn.microsoft.com/en-us/library/cc704588.aspx
+	const STATUS_SUCCESS = 0
+
+	// From the _SYSTEM_INFORMATION_CLASS enum.
+	// http://processhacker.sourceforge.net/doc/ntexapi_8h.html#ad5d815b48e8f4da1ef2eb7a2f18a54e0
+	const systemProcessorPerformanceInformation = 8
+
+	// Create a buffer large enough to hold an entry for each processor.
+	b := make([]byte, runtime.NumCPU()*sizeofSystemProcessorPerformanceInformation)
+
+	// Query the performance information. Note that this function uses 0 to
+	// indicate success. Most other Windows functions use non-zero for success.
+	var returnLength uint32
+	ntStatus, _ := _NtQuerySystemInformation(systemProcessorPerformanceInformation, &b[0], uint32(len(b)), &returnLength)
+	if ntStatus != STATUS_SUCCESS {
+		return nil, errors.Errorf("NtQuerySystemInformation failed, NTSTATUS=0x%X, bufLength=%v, returnLength=%v", ntStatus, len(b), returnLength)
+	}
+
+	return readSystemProcessorPerformanceInformationBuffer(b)
+}
+
+// readSystemProcessorPerformanceInformationBuffer reads from a buffer
+// containing SYSTEM_PROCESSOR_PERFORMANCE_INFORMATION data. The buffer should
+// contain one entry for each CPU.
+// https://msdn.microsoft.com/en-us/library/windows/desktop/ms724509(v=vs.85).aspx
+func readSystemProcessorPerformanceInformationBuffer(b []byte) ([]SystemProcessorPerformanceInformation, error) {
+	n := len(b) / sizeofSystemProcessorPerformanceInformation
+	r := bytes.NewReader(b)
+
+	rtn := make([]SystemProcessorPerformanceInformation, 0, n)
+	for i := 0; i < n; i++ {
+		_, err := r.Seek(int64(i*sizeofSystemProcessorPerformanceInformation), io.SeekStart)
+		if err != nil {
+			return nil, errors.Wrapf(err, "failed to seek to cpuN=%v in buffer", i)
+		}
+
+		times := make([]uint64, 3)
+		for j := range times {
+			err := binary.Read(r, binary.LittleEndian, &times[j])
+			if err != nil {
+				return nil, errors.Wrapf(err, "failed reading cpu times for cpuN=%v", i)
+			}
+		}
+
+		idleTime := time.Duration(times[0] * 100)
+		kernelTime := time.Duration(times[1] * 100)
+		userTime := time.Duration(times[2] * 100)
+
+		rtn = append(rtn, SystemProcessorPerformanceInformation{
+			IdleTime:   idleTime,
+			KernelTime: kernelTime - idleTime, // Subtract out idle time from kernel time.
+			UserTime:   userTime,
+		})
+	}
+
+	return rtn, nil
+}
diff --git a/vendor/github.com/elastic/gosigar/sys/windows/privileges.go b/vendor/github.com/elastic/gosigar/sys/windows/privileges.go
new file mode 100644
index 000000000..28c78fd22
--- /dev/null
+++ b/vendor/github.com/elastic/gosigar/sys/windows/privileges.go
@@ -0,0 +1,272 @@
+// +build windows
+
+package windows
+
+import (
+	"bytes"
+	"encoding/binary"
+	"encoding/json"
+	"fmt"
+	"runtime"
+	"strings"
+	"sync"
+	"syscall"
+
+	"github.com/pkg/errors"
+	"golang.org/x/sys/windows"
+)
+
+// Cache of privilege names to LUIDs.
+var (
+	privNames     = make(map[string]int64)
+	privNameMutex sync.Mutex
+)
+
+const (
+	// SeDebugPrivilege is the name of the privilege used to debug programs.
+	SeDebugPrivilege = "SeDebugPrivilege"
+)
+
+// Errors returned by AdjustTokenPrivileges.
+const (
+	ERROR_NOT_ALL_ASSIGNED syscall.Errno = 1300
+)
+
+// Attribute bits for privileges.
+const (
+	_SE_PRIVILEGE_ENABLED_BY_DEFAULT uint32 = 0x00000001
+	_SE_PRIVILEGE_ENABLED            uint32 = 0x00000002
+	_SE_PRIVILEGE_REMOVED            uint32 = 0x00000004
+	_SE_PRIVILEGE_USED_FOR_ACCESS    uint32 = 0x80000000
+)
+
+// Privilege contains information about a single privilege associated with a
+// Token.
+type Privilege struct {
+	LUID             int64  `json:"-"` // Locally unique identifier (guaranteed only until the system is restarted).
+	Name             string `json:"-"`
+	EnabledByDefault bool   `json:"enabled_by_default,omitempty"`
+	Enabled          bool   `json:"enabled"`
+	Removed          bool   `json:"removed,omitempty"`
+	Used             bool   `json:"used,omitempty"`
+}
+
+func (p Privilege) String() string {
+	var buf bytes.Buffer
+	buf.WriteString(p.Name)
+	buf.WriteString("=(")
+
+	opts := make([]string, 0, 4)
+	if p.EnabledByDefault {
+		opts = append(opts, "Default")
+	}
+	if p.Enabled {
+		opts = append(opts, "Enabled")
+	}
+	if !p.EnabledByDefault && !p.Enabled {
+		opts = append(opts, "Disabled")
+	}
+	if p.Removed {
+		opts = append(opts, "Removed")
+	}
+	if p.Used {
+		opts = append(opts, "Used")
+	}
+
+	buf.WriteString(strings.Join(opts, ", "))
+	buf.WriteString(")")
+
+	// Example: SeDebugPrivilege=(Default, Enabled)
+	return buf.String()
+}
+
+// User represent the information about a Windows account.
+type User struct {
+	SID     string
+	Account string
+	Domain  string
+	Type    uint32
+}
+
+func (u User) String() string {
+	return fmt.Sprintf(`User:%v\%v, SID:%v, Type:%v`, u.Domain, u.Account, u.SID, u.Type)
+}
+
+// DebugInfo contains general debug info about the current process.
+type DebugInfo struct {
+	OSVersion    Version              // OS version info.
+	Arch         string               // Architecture of the machine.
+	NumCPU       int                  // Number of CPUs.
+	User         User                 // User that this process is running as.
+	ProcessPrivs map[string]Privilege // Privileges held by the process.
+}
+
+func (d DebugInfo) String() string {
+	bytes, _ := json.Marshal(d)
+	return string(bytes)
+}
+
+// LookupPrivilegeName looks up a privilege name given a LUID value.
+func LookupPrivilegeName(systemName string, luid int64) (string, error) {
+	buf := make([]uint16, 256)
+	bufSize := uint32(len(buf))
+	err := _LookupPrivilegeName(systemName, &luid, &buf[0], &bufSize)
+	if err != nil {
+		return "", errors.Wrapf(err, "LookupPrivilegeName failed for luid=%v", luid)
+	}
+
+	return syscall.UTF16ToString(buf), nil
+}
+
+// mapPrivileges maps privilege names to LUID values.
+func mapPrivileges(names []string) ([]int64, error) {
+	var privileges []int64
+	privNameMutex.Lock()
+	defer privNameMutex.Unlock()
+	for _, name := range names {
+		p, ok := privNames[name]
+		if !ok {
+			err := _LookupPrivilegeValue("", name, &p)
+			if err != nil {
+				return nil, errors.Wrapf(err, "LookupPrivilegeValue failed on '%v'", name)
+			}
+			privNames[name] = p
+		}
+		privileges = append(privileges, p)
+	}
+	return privileges, nil
+}
+
+// EnableTokenPrivileges enables the specified privileges in the given
+// Token. The token must have TOKEN_ADJUST_PRIVILEGES access. If the token
+// does not already contain the privilege it cannot be enabled.
+func EnableTokenPrivileges(token syscall.Token, privileges ...string) error {
+	privValues, err := mapPrivileges(privileges)
+	if err != nil {
+		return err
+	}
+
+	var b bytes.Buffer
+	binary.Write(&b, binary.LittleEndian, uint32(len(privValues)))
+	for _, p := range privValues {
+		binary.Write(&b, binary.LittleEndian, p)
+		binary.Write(&b, binary.LittleEndian, uint32(_SE_PRIVILEGE_ENABLED))
+	}
+
+	success, err := _AdjustTokenPrivileges(token, false, &b.Bytes()[0], uint32(b.Len()), nil, nil)
+	if !success {
+		return err
+	}
+	if err == ERROR_NOT_ALL_ASSIGNED {
+		return errors.Wrap(err, "error not all privileges were assigned")
+	}
+
+	return nil
+}
+
+// GetTokenPrivileges returns a list of privileges associated with a token.
+// The provided token must have at a minimum TOKEN_QUERY access. This is a
+// wrapper around the GetTokenInformation function.
+// https://msdn.microsoft.com/en-us/library/windows/desktop/aa446671(v=vs.85).aspx
+func GetTokenPrivileges(token syscall.Token) (map[string]Privilege, error) {
+	// Determine the required buffer size.
+	var size uint32
+	syscall.GetTokenInformation(token, syscall.TokenPrivileges, nil, 0, &size)
+
+	// This buffer will receive a TOKEN_PRIVILEGE structure.
+	b := bytes.NewBuffer(make([]byte, size))
+	err := syscall.GetTokenInformation(token, syscall.TokenPrivileges, &b.Bytes()[0], uint32(b.Len()), &size)
+	if err != nil {
+		return nil, errors.Wrap(err, "GetTokenInformation failed")
+	}
+
+	var privilegeCount uint32
+	err = binary.Read(b, binary.LittleEndian, &privilegeCount)
+	if err != nil {
+		return nil, errors.Wrap(err, "failed to read PrivilegeCount")
+	}
+
+	rtn := make(map[string]Privilege, privilegeCount)
+	for i := 0; i < int(privilegeCount); i++ {
+		var luid int64
+		err = binary.Read(b, binary.LittleEndian, &luid)
+		if err != nil {
+			return nil, errors.Wrap(err, "failed to read LUID value")
+		}
+
+		var attributes uint32
+		err = binary.Read(b, binary.LittleEndian, &attributes)
+		if err != nil {
+			return nil, errors.Wrap(err, "failed to read attributes")
+		}
+
+		name, err := LookupPrivilegeName("", luid)
+		if err != nil {
+			return nil, errors.Wrapf(err, "LookupPrivilegeName failed for LUID=%v", luid)
+		}
+
+		rtn[name] = Privilege{
+			LUID:             luid,
+			Name:             name,
+			EnabledByDefault: (attributes & _SE_PRIVILEGE_ENABLED_BY_DEFAULT) > 0,
+			Enabled:          (attributes & _SE_PRIVILEGE_ENABLED) > 0,
+			Removed:          (attributes & _SE_PRIVILEGE_REMOVED) > 0,
+			Used:             (attributes & _SE_PRIVILEGE_USED_FOR_ACCESS) > 0,
+		}
+	}
+
+	return rtn, nil
+}
+
+// GetTokenUser returns the User associated with the given Token.
+func GetTokenUser(token syscall.Token) (User, error) {
+	tokenUser, err := token.GetTokenUser()
+	if err != nil {
+		return User{}, errors.Wrap(err, "GetTokenUser failed")
+	}
+
+	var user User
+	user.SID, err = tokenUser.User.Sid.String()
+	if err != nil {
+		return user, errors.Wrap(err, "ConvertSidToStringSid failed")
+	}
+
+	user.Account, user.Domain, user.Type, err = tokenUser.User.Sid.LookupAccount("")
+	if err != nil {
+		return user, errors.Wrap(err, "LookupAccountSid failed")
+	}
+
+	return user, nil
+}
+
+// GetDebugInfo returns general debug info about the current process.
+func GetDebugInfo() (*DebugInfo, error) {
+	h, err := windows.GetCurrentProcess()
+	if err != nil {
+		return nil, err
+	}
+
+	var token syscall.Token
+	err = syscall.OpenProcessToken(syscall.Handle(h), syscall.TOKEN_QUERY, &token)
+	if err != nil {
+		return nil, err
+	}
+
+	privs, err := GetTokenPrivileges(token)
+	if err != nil {
+		return nil, err
+	}
+
+	user, err := GetTokenUser(token)
+	if err != nil {
+		return nil, err
+	}
+
+	return &DebugInfo{
+		User:         user,
+		ProcessPrivs: privs,
+		OSVersion:    GetWindowsVersion(),
+		Arch:         runtime.GOARCH,
+		NumCPU:       runtime.NumCPU(),
+	}, nil
+}
diff --git a/vendor/github.com/elastic/gosigar/sys/windows/syscall_windows.go b/vendor/github.com/elastic/gosigar/sys/windows/syscall_windows.go
new file mode 100644
index 000000000..88df0febf
--- /dev/null
+++ b/vendor/github.com/elastic/gosigar/sys/windows/syscall_windows.go
@@ -0,0 +1,385 @@
+package windows
+
+import (
+	"fmt"
+	"syscall"
+	"time"
+	"unsafe"
+
+	"github.com/pkg/errors"
+)
+
+var (
+	sizeofUint32                  = 4
+	sizeofProcessEntry32          = uint32(unsafe.Sizeof(ProcessEntry32{}))
+	sizeofProcessMemoryCountersEx = uint32(unsafe.Sizeof(ProcessMemoryCountersEx{}))
+	sizeofMemoryStatusEx          = uint32(unsafe.Sizeof(MemoryStatusEx{}))
+)
+
+// Process-specific access rights. Others are declared in the syscall package.
+// https://msdn.microsoft.com/en-us/library/windows/desktop/ms684880(v=vs.85).aspx
+const (
+	PROCESS_QUERY_LIMITED_INFORMATION uint32 = 0x1000
+	PROCESS_VM_READ                   uint32 = 0x0010
+)
+
+// MAX_PATH is the maximum length for a path in Windows.
+// https://msdn.microsoft.com/en-us/library/windows/desktop/aa365247(v=vs.85).aspx
+const MAX_PATH = 260
+
+// DriveType represents a type of drive (removable, fixed, CD-ROM, RAM disk, or
+// network drive).
+type DriveType uint32
+
+// Drive types as returned by GetDriveType.
+// https://msdn.microsoft.com/en-us/library/windows/desktop/aa364939(v=vs.85).aspx
+const (
+	DRIVE_UNKNOWN DriveType = iota
+	DRIVE_NO_ROOT_DIR
+	DRIVE_REMOVABLE
+	DRIVE_FIXED
+	DRIVE_REMOTE
+	DRIVE_CDROM
+	DRIVE_RAMDISK
+)
+
+func (dt DriveType) String() string {
+	names := map[DriveType]string{
+		DRIVE_UNKNOWN:     "unknown",
+		DRIVE_NO_ROOT_DIR: "invalid",
+		DRIVE_REMOVABLE:   "removable",
+		DRIVE_FIXED:       "fixed",
+		DRIVE_REMOTE:      "remote",
+		DRIVE_CDROM:       "cdrom",
+		DRIVE_RAMDISK:     "ramdisk",
+	}
+
+	name, found := names[dt]
+	if !found {
+		return "unknown DriveType value"
+	}
+	return name
+}
+
+// Flags that can be used with CreateToolhelp32Snapshot.
+const (
+	TH32CS_INHERIT      uint32 = 0x80000000 // Indicates that the snapshot handle is to be inheritable.
+	TH32CS_SNAPHEAPLIST uint32 = 0x00000001 // Includes all heaps of the process specified in th32ProcessID in the snapshot.
+	TH32CS_SNAPMODULE   uint32 = 0x00000008 // Includes all modules of the process specified in th32ProcessID in the snapshot.
+	TH32CS_SNAPMODULE32 uint32 = 0x00000010 // Includes all 32-bit modules of the process specified in th32ProcessID in the snapshot when called from a 64-bit process.
+	TH32CS_SNAPPROCESS  uint32 = 0x00000002 // Includes all processes in the system in the snapshot.
+	TH32CS_SNAPTHREAD   uint32 = 0x00000004 // Includes all threads in the system in the snapshot.
+)
+
+// ProcessEntry32 is an equivalent representation of PROCESSENTRY32 in the
+// Windows API. It contains a process's information. Do not modify or reorder.
+// https://msdn.microsoft.com/en-us/library/windows/desktop/ms684839(v=vs.85).aspx
+type ProcessEntry32 struct {
+	size              uint32
+	CntUsage          uint32
+	ProcessID         uint32
+	DefaultHeapID     uintptr
+	ModuleID          uint32
+	CntThreads        uint32
+	ParentProcessID   uint32
+	PriorityClassBase int32
+	Flags             uint32
+	exeFile           [MAX_PATH]uint16
+}
+
+// ExeFile returns the name of the executable file for the process. It does
+// not contain the full path.
+func (p ProcessEntry32) ExeFile() string {
+	return syscall.UTF16ToString(p.exeFile[:])
+}
+
+func (p ProcessEntry32) String() string {
+	return fmt.Sprintf("{CntUsage:%v ProcessID:%v DefaultHeapID:%v ModuleID:%v "+
+		"CntThreads:%v ParentProcessID:%v PriorityClassBase:%v Flags:%v ExeFile:%v",
+		p.CntUsage, p.ProcessID, p.DefaultHeapID, p.ModuleID, p.CntThreads,
+		p.ParentProcessID, p.PriorityClassBase, p.Flags, p.ExeFile())
+}
+
+// MemoryStatusEx is an equivalent representation of MEMORYSTATUSEX in the
+// Windows API. It contains information about the current state of both physical
+// and virtual memory, including extended memory.
+// https://msdn.microsoft.com/en-us/library/windows/desktop/aa366770
+type MemoryStatusEx struct {
+	length               uint32
+	MemoryLoad           uint32
+	TotalPhys            uint64
+	AvailPhys            uint64
+	TotalPageFile        uint64
+	AvailPageFile        uint64
+	TotalVirtual         uint64
+	AvailVirtual         uint64
+	AvailExtendedVirtual uint64
+}
+
+// ProcessMemoryCountersEx is an equivalent representation of
+// PROCESS_MEMORY_COUNTERS_EX in the Windows API.
+// https://msdn.microsoft.com/en-us/library/windows/desktop/ms684874(v=vs.85).aspx
+type ProcessMemoryCountersEx struct {
+	cb                         uint32
+	PageFaultCount             uint32
+	PeakWorkingSetSize         uintptr
+	WorkingSetSize             uintptr
+	QuotaPeakPagedPoolUsage    uintptr
+	QuotaPagedPoolUsage        uintptr
+	QuotaPeakNonPagedPoolUsage uintptr
+	QuotaNonPagedPoolUsage     uintptr
+	PagefileUsage              uintptr
+	PeakPagefileUsage          uintptr
+	PrivateUsage               uintptr
+}
+
+// GetLogicalDriveStrings returns a list of drives in the system.
+// https://msdn.microsoft.com/en-us/library/windows/desktop/aa364975(v=vs.85).aspx
+func GetLogicalDriveStrings() ([]string, error) {
+	// Determine the size of the buffer required to receive all drives.
+	bufferLength, err := _GetLogicalDriveStringsW(0, nil)
+	if err != nil {
+		return nil, errors.Wrap(err, "GetLogicalDriveStringsW failed to get buffer length")
+	}
+	if bufferLength < 0 {
+		return nil, errors.New("GetLogicalDriveStringsW returned an invalid buffer length")
+	}
+
+	buffer := make([]uint16, bufferLength)
+	_, err = _GetLogicalDriveStringsW(uint32(len(buffer)), &buffer[0])
+	if err != nil {
+		return nil, errors.Wrap(err, "GetLogicalDriveStringsW failed")
+	}
+
+	// Split the uint16 slice at null-terminators.
+	var startIdx int
+	var drivesUTF16 [][]uint16
+	for i, value := range buffer {
+		if value == 0 {
+			drivesUTF16 = append(drivesUTF16, buffer[startIdx:i])
+			startIdx = i + 1
+		}
+	}
+
+	// Convert the utf16 slices to strings.
+	drives := make([]string, 0, len(drivesUTF16))
+	for _, driveUTF16 := range drivesUTF16 {
+		if len(driveUTF16) > 0 {
+			drives = append(drives, syscall.UTF16ToString(driveUTF16))
+		}
+	}
+
+	return drives, nil
+}
+
+// GlobalMemoryStatusEx retrieves information about the system's current usage
+// of both physical and virtual memory.
+// https://msdn.microsoft.com/en-us/library/windows/desktop/aa366589(v=vs.85).aspx
+func GlobalMemoryStatusEx() (MemoryStatusEx, error) {
+	memoryStatusEx := MemoryStatusEx{length: sizeofMemoryStatusEx}
+	err := _GlobalMemoryStatusEx(&memoryStatusEx)
+	if err != nil {
+		return MemoryStatusEx{}, errors.Wrap(err, "GlobalMemoryStatusEx failed")
+	}
+
+	return memoryStatusEx, nil
+}
+
+// GetProcessMemoryInfo retrieves information about the memory usage of the
+// specified process.
+// https://msdn.microsoft.com/en-us/library/windows/desktop/ms683219(v=vs.85).aspx
+func GetProcessMemoryInfo(handle syscall.Handle) (ProcessMemoryCountersEx, error) {
+	processMemoryCountersEx := ProcessMemoryCountersEx{cb: sizeofProcessMemoryCountersEx}
+	err := _GetProcessMemoryInfo(handle, &processMemoryCountersEx, processMemoryCountersEx.cb)
+	if err != nil {
+		return ProcessMemoryCountersEx{}, errors.Wrap(err, "GetProcessMemoryInfo failed")
+	}
+
+	return processMemoryCountersEx, nil
+}
+
+// GetProcessImageFileName Retrieves the name of the executable file for the
+// specified process.
+// https://msdn.microsoft.com/en-us/library/windows/desktop/ms683217(v=vs.85).aspx
+func GetProcessImageFileName(handle syscall.Handle) (string, error) {
+	buffer := make([]uint16, MAX_PATH)
+	_, err := _GetProcessImageFileName(handle, &buffer[0], uint32(len(buffer)))
+	if err != nil {
+		return "", errors.Wrap(err, "GetProcessImageFileName failed")
+	}
+
+	return syscall.UTF16ToString(buffer), nil
+}
+
+// GetSystemTimes retrieves system timing information. On a multiprocessor
+// system, the values returned are the sum of the designated times across all
+// processors. The returned kernel time does not include the system idle time.
+// https://msdn.microsoft.com/en-us/library/windows/desktop/ms724400(v=vs.85).aspx
+func GetSystemTimes() (idle, kernel, user time.Duration, err error) {
+	var idleTime, kernelTime, userTime syscall.Filetime
+	err = _GetSystemTimes(&idleTime, &kernelTime, &userTime)
+	if err != nil {
+		return 0, 0, 0, errors.Wrap(err, "GetSystemTimes failed")
+	}
+
+	idle = FiletimeToDuration(&idleTime)
+	kernel = FiletimeToDuration(&kernelTime) // Kernel time includes idle time so we subtract it out.
+	user = FiletimeToDuration(&userTime)
+
+	return idle, kernel - idle, user, nil
+}
+
+// FiletimeToDuration converts a Filetime to a time.Duration. Do not use this
+// method to convert a Filetime to an actual clock time, for that use
+// Filetime.Nanosecond().
+func FiletimeToDuration(ft *syscall.Filetime) time.Duration {
+	n := int64(ft.HighDateTime)<<32 + int64(ft.LowDateTime) // in 100-nanosecond intervals
+	return time.Duration(n * 100)
+}
+
+// GetDriveType Determines whether a disk drive is a removable, fixed, CD-ROM,
+// RAM disk, or network drive. A trailing backslash is required on the
+// rootPathName.
+// https://msdn.microsoft.com/en-us/library/windows/desktop/aa364939
+func GetDriveType(rootPathName string) (DriveType, error) {
+	rootPathNamePtr, err := syscall.UTF16PtrFromString(rootPathName)
+	if err != nil {
+		return DRIVE_UNKNOWN, errors.Wrapf(err, "UTF16PtrFromString failed for rootPathName=%v", rootPathName)
+	}
+
+	dt, err := _GetDriveType(rootPathNamePtr)
+	if err != nil {
+		return DRIVE_UNKNOWN, errors.Wrapf(err, "GetDriveType failed for rootPathName=%v", rootPathName)
+	}
+
+	return dt, nil
+}
+
+// EnumProcesses retrieves the process identifier for each process object in the
+// system. This function can return a max of 65536 PIDs. If there are more
+// processes than that then this will not return them all.
+// https://msdn.microsoft.com/en-us/library/windows/desktop/ms682629(v=vs.85).aspx
+func EnumProcesses() ([]uint32, error) {
+	enumProcesses := func(size int) ([]uint32, error) {
+		var (
+			pids         = make([]uint32, size)
+			sizeBytes    = len(pids) * sizeofUint32
+			bytesWritten uint32
+		)
+
+		err := _EnumProcesses(&pids[0], uint32(sizeBytes), &bytesWritten)
+
+		pidsWritten := int(bytesWritten) / sizeofUint32
+		if int(bytesWritten)%sizeofUint32 != 0 || pidsWritten > len(pids) {
+			return nil, errors.Errorf("EnumProcesses returned an invalid bytesWritten value of %v", bytesWritten)
+		}
+		pids = pids[:pidsWritten]
+
+		return pids, err
+	}
+
+	// Retry the EnumProcesses call with larger arrays if needed.
+	size := 2048
+	var pids []uint32
+	for tries := 0; tries < 5; tries++ {
+		var err error
+		pids, err = enumProcesses(size)
+		if err != nil {
+			return nil, errors.Wrap(err, "EnumProcesses failed")
+		}
+
+		if len(pids) < size {
+			break
+		}
+
+		// Increase the size the pids array and retry the enumProcesses call
+		// because the array wasn't large enough to hold all of the processes.
+		size *= 2
+	}
+
+	return pids, nil
+}
+
+// GetDiskFreeSpaceEx retrieves information about the amount of space that is
+// available on a disk volume, which is the total amount of space, the total
+// amount of free space, and the total amount of free space available to the
+// user that is associated with the calling thread.
+// https://msdn.microsoft.com/en-us/library/windows/desktop/aa364937(v=vs.85).aspx
+func GetDiskFreeSpaceEx(directoryName string) (freeBytesAvailable, totalNumberOfBytes, totalNumberOfFreeBytes uint64, err error) {
+	directoryNamePtr, err := syscall.UTF16PtrFromString(directoryName)
+	if err != nil {
+		return 0, 0, 0, errors.Wrapf(err, "UTF16PtrFromString failed for directoryName=%v", directoryName)
+	}
+
+	err = _GetDiskFreeSpaceEx(directoryNamePtr, &freeBytesAvailable, &totalNumberOfBytes, &totalNumberOfFreeBytes)
+	if err != nil {
+		return 0, 0, 0, err
+	}
+
+	return freeBytesAvailable, totalNumberOfBytes, totalNumberOfFreeBytes, nil
+}
+
+// CreateToolhelp32Snapshot takes a snapshot of the specified processes, as well
+// as the heaps, modules, and threads used by these processes.
+// https://msdn.microsoft.com/en-us/library/windows/desktop/ms682489(v=vs.85).aspx
+func CreateToolhelp32Snapshot(flags, pid uint32) (syscall.Handle, error) {
+	h, err := _CreateToolhelp32Snapshot(flags, pid)
+	if err != nil {
+		return syscall.InvalidHandle, err
+	}
+	if h == syscall.InvalidHandle {
+		return syscall.InvalidHandle, syscall.GetLastError()
+	}
+
+	return h, nil
+}
+
+// Process32First retrieves information about the first process encountered in a
+// system snapshot.
+// https://msdn.microsoft.com/en-us/library/windows/desktop/ms684834
+func Process32First(handle syscall.Handle) (ProcessEntry32, error) {
+	processEntry32 := ProcessEntry32{size: sizeofProcessEntry32}
+	err := _Process32First(handle, &processEntry32)
+	if err != nil {
+		return ProcessEntry32{}, errors.Wrap(err, "Process32First failed")
+	}
+
+	return processEntry32, nil
+}
+
+// Process32Next retrieves information about the next process recorded in a
+// system snapshot. When there are no more processes to iterate then
+// syscall.ERROR_NO_MORE_FILES is returned (use errors.Cause() to unwrap).
+// https://msdn.microsoft.com/en-us/library/windows/desktop/ms684836
+func Process32Next(handle syscall.Handle) (ProcessEntry32, error) {
+	processEntry32 := ProcessEntry32{size: sizeofProcessEntry32}
+	err := _Process32Next(handle, &processEntry32)
+	if err != nil {
+		return ProcessEntry32{}, errors.Wrap(err, "Process32Next failed")
+	}
+
+	return processEntry32, nil
+}
+
+// Use "GOOS=windows go generate -v -x ." to generate the source.
+
+// Add -trace to enable debug prints around syscalls.
+//go:generate go run $GOROOT/src/syscall/mksyscall_windows.go -output zsyscall_windows.go syscall_windows.go
+
+// Windows API calls
+//sys   _GlobalMemoryStatusEx(buffer *MemoryStatusEx) (err error) = kernel32.GlobalMemoryStatusEx
+//sys   _GetLogicalDriveStringsW(bufferLength uint32, buffer *uint16) (length uint32, err error) = kernel32.GetLogicalDriveStringsW
+//sys   _GetProcessMemoryInfo(handle syscall.Handle, psmemCounters *ProcessMemoryCountersEx, cb uint32) (err error) = psapi.GetProcessMemoryInfo
+//sys   _GetProcessImageFileName(handle syscall.Handle, outImageFileName *uint16, size uint32) (length uint32, err error) = psapi.GetProcessImageFileNameW
+//sys   _GetSystemTimes(idleTime *syscall.Filetime, kernelTime *syscall.Filetime, userTime *syscall.Filetime) (err error) = kernel32.GetSystemTimes
+//sys   _GetDriveType(rootPathName *uint16) (dt DriveType, err error) = kernel32.GetDriveTypeW
+//sys   _EnumProcesses(processIds *uint32, sizeBytes uint32, bytesReturned *uint32) (err error) = psapi.EnumProcesses
+//sys   _GetDiskFreeSpaceEx(directoryName *uint16, freeBytesAvailable *uint64, totalNumberOfBytes *uint64, totalNumberOfFreeBytes *uint64) (err error) = kernel32.GetDiskFreeSpaceExW
+//sys   _Process32First(handle syscall.Handle, processEntry32 *ProcessEntry32) (err error) = kernel32.Process32FirstW
+//sys   _Process32Next(handle syscall.Handle, processEntry32 *ProcessEntry32) (err error) = kernel32.Process32NextW
+//sys   _CreateToolhelp32Snapshot(flags uint32, processID uint32) (handle syscall.Handle, err error) = kernel32.CreateToolhelp32Snapshot
+//sys   _NtQuerySystemInformation(systemInformationClass uint32, systemInformation *byte, systemInformationLength uint32, returnLength *uint32) (ntstatus uint32, err error) = ntdll.NtQuerySystemInformation
+//sys   _NtQueryInformationProcess(processHandle syscall.Handle, processInformationClass uint32, processInformation *byte, processInformationLength uint32, returnLength *uint32) (ntstatus uint32, err error) = ntdll.NtQueryInformationProcess
+//sys   _LookupPrivilegeName(systemName string, luid *int64, buffer *uint16, size *uint32) (err error) = advapi32.LookupPrivilegeNameW
+//sys   _LookupPrivilegeValue(systemName string, name string, luid *int64) (err error) = advapi32.LookupPrivilegeValueW
+//sys   _AdjustTokenPrivileges(token syscall.Token, releaseAll bool, input *byte, outputSize uint32, output *byte, requiredSize *uint32) (success bool, err error) [true] = advapi32.AdjustTokenPrivileges
diff --git a/vendor/github.com/elastic/gosigar/sys/windows/version.go b/vendor/github.com/elastic/gosigar/sys/windows/version.go
new file mode 100644
index 000000000..d0bca89c1
--- /dev/null
+++ b/vendor/github.com/elastic/gosigar/sys/windows/version.go
@@ -0,0 +1,43 @@
+// +build windows
+
+package windows
+
+import (
+	"fmt"
+	"syscall"
+)
+
+// Version identifies a Windows version by major, minor, and build number.
+type Version struct {
+	Major int
+	Minor int
+	Build int
+}
+
+// GetWindowsVersion returns the Windows version information. Applications not
+// manifested for Windows 8.1 or Windows 10 will return the Windows 8 OS version
+// value (6.2).
+//
+// For a table of version numbers see:
+// https://msdn.microsoft.com/en-us/library/windows/desktop/ms724833(v=vs.85).aspx
+func GetWindowsVersion() Version {
+	// https://msdn.microsoft.com/en-us/library/windows/desktop/ms724439(v=vs.85).aspx
+	ver, err := syscall.GetVersion()
+	if err != nil {
+		// GetVersion should never return an error.
+		panic(fmt.Errorf("GetVersion failed: %v", err))
+	}
+
+	return Version{
+		Major: int(ver & 0xFF),
+		Minor: int(ver >> 8 & 0xFF),
+		Build: int(ver >> 16),
+	}
+}
+
+// IsWindowsVistaOrGreater returns true if the Windows version is Vista or
+// greater.
+func (v Version) IsWindowsVistaOrGreater() bool {
+	// Vista is 6.0.
+	return v.Major >= 6 && v.Minor >= 0
+}
diff --git a/vendor/github.com/elastic/gosigar/sys/windows/zsyscall_windows.go b/vendor/github.com/elastic/gosigar/sys/windows/zsyscall_windows.go
new file mode 100644
index 000000000..53fae4e3b
--- /dev/null
+++ b/vendor/github.com/elastic/gosigar/sys/windows/zsyscall_windows.go
@@ -0,0 +1,260 @@
+// MACHINE GENERATED BY 'go generate' COMMAND; DO NOT EDIT
+
+package windows
+
+import "unsafe"
+import "syscall"
+
+var _ unsafe.Pointer
+
+var (
+	modkernel32 = syscall.NewLazyDLL("kernel32.dll")
+	modpsapi    = syscall.NewLazyDLL("psapi.dll")
+	modntdll    = syscall.NewLazyDLL("ntdll.dll")
+	modadvapi32 = syscall.NewLazyDLL("advapi32.dll")
+
+	procGlobalMemoryStatusEx      = modkernel32.NewProc("GlobalMemoryStatusEx")
+	procGetLogicalDriveStringsW   = modkernel32.NewProc("GetLogicalDriveStringsW")
+	procGetProcessMemoryInfo      = modpsapi.NewProc("GetProcessMemoryInfo")
+	procGetProcessImageFileNameW  = modpsapi.NewProc("GetProcessImageFileNameW")
+	procGetSystemTimes            = modkernel32.NewProc("GetSystemTimes")
+	procGetDriveTypeW             = modkernel32.NewProc("GetDriveTypeW")
+	procEnumProcesses             = modpsapi.NewProc("EnumProcesses")
+	procGetDiskFreeSpaceExW       = modkernel32.NewProc("GetDiskFreeSpaceExW")
+	procProcess32FirstW           = modkernel32.NewProc("Process32FirstW")
+	procProcess32NextW            = modkernel32.NewProc("Process32NextW")
+	procCreateToolhelp32Snapshot  = modkernel32.NewProc("CreateToolhelp32Snapshot")
+	procNtQuerySystemInformation  = modntdll.NewProc("NtQuerySystemInformation")
+	procNtQueryInformationProcess = modntdll.NewProc("NtQueryInformationProcess")
+	procLookupPrivilegeNameW      = modadvapi32.NewProc("LookupPrivilegeNameW")
+	procLookupPrivilegeValueW     = modadvapi32.NewProc("LookupPrivilegeValueW")
+	procAdjustTokenPrivileges     = modadvapi32.NewProc("AdjustTokenPrivileges")
+)
+
+func _GlobalMemoryStatusEx(buffer *MemoryStatusEx) (err error) {
+	r1, _, e1 := syscall.Syscall(procGlobalMemoryStatusEx.Addr(), 1, uintptr(unsafe.Pointer(buffer)), 0, 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = error(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func _GetLogicalDriveStringsW(bufferLength uint32, buffer *uint16) (length uint32, err error) {
+	r0, _, e1 := syscall.Syscall(procGetLogicalDriveStringsW.Addr(), 2, uintptr(bufferLength), uintptr(unsafe.Pointer(buffer)), 0)
+	length = uint32(r0)
+	if length == 0 {
+		if e1 != 0 {
+			err = error(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func _GetProcessMemoryInfo(handle syscall.Handle, psmemCounters *ProcessMemoryCountersEx, cb uint32) (err error) {
+	r1, _, e1 := syscall.Syscall(procGetProcessMemoryInfo.Addr(), 3, uintptr(handle), uintptr(unsafe.Pointer(psmemCounters)), uintptr(cb))
+	if r1 == 0 {
+		if e1 != 0 {
+			err = error(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func _GetProcessImageFileName(handle syscall.Handle, outImageFileName *uint16, size uint32) (length uint32, err error) {
+	r0, _, e1 := syscall.Syscall(procGetProcessImageFileNameW.Addr(), 3, uintptr(handle), uintptr(unsafe.Pointer(outImageFileName)), uintptr(size))
+	length = uint32(r0)
+	if length == 0 {
+		if e1 != 0 {
+			err = error(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func _GetSystemTimes(idleTime *syscall.Filetime, kernelTime *syscall.Filetime, userTime *syscall.Filetime) (err error) {
+	r1, _, e1 := syscall.Syscall(procGetSystemTimes.Addr(), 3, uintptr(unsafe.Pointer(idleTime)), uintptr(unsafe.Pointer(kernelTime)), uintptr(unsafe.Pointer(userTime)))
+	if r1 == 0 {
+		if e1 != 0 {
+			err = error(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func _GetDriveType(rootPathName *uint16) (dt DriveType, err error) {
+	r0, _, e1 := syscall.Syscall(procGetDriveTypeW.Addr(), 1, uintptr(unsafe.Pointer(rootPathName)), 0, 0)
+	dt = DriveType(r0)
+	if dt == 0 {
+		if e1 != 0 {
+			err = error(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func _EnumProcesses(processIds *uint32, sizeBytes uint32, bytesReturned *uint32) (err error) {
+	r1, _, e1 := syscall.Syscall(procEnumProcesses.Addr(), 3, uintptr(unsafe.Pointer(processIds)), uintptr(sizeBytes), uintptr(unsafe.Pointer(bytesReturned)))
+	if r1 == 0 {
+		if e1 != 0 {
+			err = error(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func _GetDiskFreeSpaceEx(directoryName *uint16, freeBytesAvailable *uint64, totalNumberOfBytes *uint64, totalNumberOfFreeBytes *uint64) (err error) {
+	r1, _, e1 := syscall.Syscall6(procGetDiskFreeSpaceExW.Addr(), 4, uintptr(unsafe.Pointer(directoryName)), uintptr(unsafe.Pointer(freeBytesAvailable)), uintptr(unsafe.Pointer(totalNumberOfBytes)), uintptr(unsafe.Pointer(totalNumberOfFreeBytes)), 0, 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = error(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func _Process32First(handle syscall.Handle, processEntry32 *ProcessEntry32) (err error) {
+	r1, _, e1 := syscall.Syscall(procProcess32FirstW.Addr(), 2, uintptr(handle), uintptr(unsafe.Pointer(processEntry32)), 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = error(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func _Process32Next(handle syscall.Handle, processEntry32 *ProcessEntry32) (err error) {
+	r1, _, e1 := syscall.Syscall(procProcess32NextW.Addr(), 2, uintptr(handle), uintptr(unsafe.Pointer(processEntry32)), 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = error(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func _CreateToolhelp32Snapshot(flags uint32, processID uint32) (handle syscall.Handle, err error) {
+	r0, _, e1 := syscall.Syscall(procCreateToolhelp32Snapshot.Addr(), 2, uintptr(flags), uintptr(processID), 0)
+	handle = syscall.Handle(r0)
+	if handle == 0 {
+		if e1 != 0 {
+			err = error(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func _NtQuerySystemInformation(systemInformationClass uint32, systemInformation *byte, systemInformationLength uint32, returnLength *uint32) (ntstatus uint32, err error) {
+	r0, _, e1 := syscall.Syscall6(procNtQuerySystemInformation.Addr(), 4, uintptr(systemInformationClass), uintptr(unsafe.Pointer(systemInformation)), uintptr(systemInformationLength), uintptr(unsafe.Pointer(returnLength)), 0, 0)
+	ntstatus = uint32(r0)
+	if ntstatus == 0 {
+		if e1 != 0 {
+			err = error(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func _NtQueryInformationProcess(processHandle syscall.Handle, processInformationClass uint32, processInformation *byte, processInformationLength uint32, returnLength *uint32) (ntstatus uint32, err error) {
+	r0, _, e1 := syscall.Syscall6(procNtQueryInformationProcess.Addr(), 5, uintptr(processHandle), uintptr(processInformationClass), uintptr(unsafe.Pointer(processInformation)), uintptr(processInformationLength), uintptr(unsafe.Pointer(returnLength)), 0)
+	ntstatus = uint32(r0)
+	if ntstatus == 0 {
+		if e1 != 0 {
+			err = error(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func _LookupPrivilegeName(systemName string, luid *int64, buffer *uint16, size *uint32) (err error) {
+	var _p0 *uint16
+	_p0, err = syscall.UTF16PtrFromString(systemName)
+	if err != nil {
+		return
+	}
+	return __LookupPrivilegeName(_p0, luid, buffer, size)
+}
+
+func __LookupPrivilegeName(systemName *uint16, luid *int64, buffer *uint16, size *uint32) (err error) {
+	r1, _, e1 := syscall.Syscall6(procLookupPrivilegeNameW.Addr(), 4, uintptr(unsafe.Pointer(systemName)), uintptr(unsafe.Pointer(luid)), uintptr(unsafe.Pointer(buffer)), uintptr(unsafe.Pointer(size)), 0, 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = error(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func _LookupPrivilegeValue(systemName string, name string, luid *int64) (err error) {
+	var _p0 *uint16
+	_p0, err = syscall.UTF16PtrFromString(systemName)
+	if err != nil {
+		return
+	}
+	var _p1 *uint16
+	_p1, err = syscall.UTF16PtrFromString(name)
+	if err != nil {
+		return
+	}
+	return __LookupPrivilegeValue(_p0, _p1, luid)
+}
+
+func __LookupPrivilegeValue(systemName *uint16, name *uint16, luid *int64) (err error) {
+	r1, _, e1 := syscall.Syscall(procLookupPrivilegeValueW.Addr(), 3, uintptr(unsafe.Pointer(systemName)), uintptr(unsafe.Pointer(name)), uintptr(unsafe.Pointer(luid)))
+	if r1 == 0 {
+		if e1 != 0 {
+			err = error(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func _AdjustTokenPrivileges(token syscall.Token, releaseAll bool, input *byte, outputSize uint32, output *byte, requiredSize *uint32) (success bool, err error) {
+	var _p0 uint32
+	if releaseAll {
+		_p0 = 1
+	} else {
+		_p0 = 0
+	}
+	r0, _, e1 := syscall.Syscall6(procAdjustTokenPrivileges.Addr(), 6, uintptr(token), uintptr(_p0), uintptr(unsafe.Pointer(input)), uintptr(outputSize), uintptr(unsafe.Pointer(output)), uintptr(unsafe.Pointer(requiredSize)))
+	success = r0 != 0
+	if true {
+		if e1 != 0 {
+			err = error(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}