mirror of https://github.com/cjbassi/gotop.git
708 lines
19 KiB
Go
708 lines
19 KiB
Go
// +build windows
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package process
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import (
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"context"
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"fmt"
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"os"
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"strings"
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"syscall"
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"time"
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"unsafe"
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"github.com/StackExchange/wmi"
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cpu "github.com/shirou/gopsutil/cpu"
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"github.com/shirou/gopsutil/internal/common"
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net "github.com/shirou/gopsutil/net"
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"github.com/shirou/w32"
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"golang.org/x/sys/windows"
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)
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const (
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NoMoreFiles = 0x12
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MaxPathLength = 260
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)
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var (
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modpsapi = windows.NewLazyDLL("psapi.dll")
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procGetProcessMemoryInfo = modpsapi.NewProc("GetProcessMemoryInfo")
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)
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type SystemProcessInformation struct {
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NextEntryOffset uint64
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NumberOfThreads uint64
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Reserved1 [48]byte
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Reserved2 [3]byte
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UniqueProcessID uintptr
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Reserved3 uintptr
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HandleCount uint64
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Reserved4 [4]byte
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Reserved5 [11]byte
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PeakPagefileUsage uint64
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PrivatePageCount uint64
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Reserved6 [6]uint64
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}
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// Memory_info_ex is different between OSes
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type MemoryInfoExStat struct {
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}
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type MemoryMapsStat struct {
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}
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type Win32_Process struct {
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Name string
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ExecutablePath *string
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CommandLine *string
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Priority uint32
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CreationDate *time.Time
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ProcessID uint32
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ThreadCount uint32
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Status *string
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ReadOperationCount uint64
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ReadTransferCount uint64
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WriteOperationCount uint64
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WriteTransferCount uint64
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CSCreationClassName string
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CSName string
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Caption *string
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CreationClassName string
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Description *string
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ExecutionState *uint16
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HandleCount uint32
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KernelModeTime uint64
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MaximumWorkingSetSize *uint32
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MinimumWorkingSetSize *uint32
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OSCreationClassName string
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OSName string
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OtherOperationCount uint64
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OtherTransferCount uint64
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PageFaults uint32
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PageFileUsage uint32
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ParentProcessID uint32
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PeakPageFileUsage uint32
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PeakVirtualSize uint64
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PeakWorkingSetSize uint32
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PrivatePageCount uint64
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TerminationDate *time.Time
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UserModeTime uint64
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WorkingSetSize uint64
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}
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func init() {
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wmi.DefaultClient.AllowMissingFields = true
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}
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func Pids() ([]int32, error) {
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return PidsWithContext(context.Background())
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}
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func PidsWithContext(ctx context.Context) ([]int32, error) {
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// inspired by https://gist.github.com/henkman/3083408
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// and https://github.com/giampaolo/psutil/blob/1c3a15f637521ba5c0031283da39c733fda53e4c/psutil/arch/windows/process_info.c#L315-L329
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var ret []int32
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var read uint32 = 0
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var psSize uint32 = 1024
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const dwordSize uint32 = 4
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for {
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ps := make([]uint32, psSize)
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if !w32.EnumProcesses(ps, uint32(len(ps)), &read) {
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return nil, fmt.Errorf("could not get w32.EnumProcesses")
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}
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if uint32(len(ps)) == read { // ps buffer was too small to host every results, retry with a bigger one
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psSize += 1024
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continue
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}
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for _, pid := range ps[:read/dwordSize] {
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ret = append(ret, int32(pid))
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}
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return ret, nil
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}
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}
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func (p *Process) Ppid() (int32, error) {
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return p.PpidWithContext(context.Background())
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}
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func (p *Process) PpidWithContext(ctx context.Context) (int32, error) {
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ppid, _, _, err := getFromSnapProcess(p.Pid)
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if err != nil {
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return 0, err
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}
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return ppid, nil
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}
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func GetWin32Proc(pid int32) ([]Win32_Process, error) {
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return GetWin32ProcWithContext(context.Background(), pid)
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}
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func GetWin32ProcWithContext(ctx context.Context, pid int32) ([]Win32_Process, error) {
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var dst []Win32_Process
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query := fmt.Sprintf("WHERE ProcessId = %d", pid)
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q := wmi.CreateQuery(&dst, query)
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err := common.WMIQueryWithContext(ctx, q, &dst)
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if err != nil {
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return []Win32_Process{}, fmt.Errorf("could not get win32Proc: %s", err)
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}
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if len(dst) == 0 {
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return []Win32_Process{}, fmt.Errorf("could not get win32Proc: empty")
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}
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return dst, nil
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}
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func (p *Process) Name() (string, error) {
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return p.NameWithContext(context.Background())
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}
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func (p *Process) NameWithContext(ctx context.Context) (string, error) {
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_, _, name, err := getFromSnapProcess(p.Pid)
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if err != nil {
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return "", fmt.Errorf("could not get Name: %s", err)
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}
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return name, nil
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}
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func (p *Process) Tgid() (int32, error) {
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return 0, common.ErrNotImplementedError
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}
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func (p *Process) Exe() (string, error) {
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return p.ExeWithContext(context.Background())
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}
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func (p *Process) ExeWithContext(ctx context.Context) (string, error) {
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dst, err := GetWin32Proc(p.Pid)
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if err != nil {
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return "", fmt.Errorf("could not get ExecutablePath: %s", err)
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}
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return *dst[0].ExecutablePath, nil
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}
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func (p *Process) Cmdline() (string, error) {
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return p.CmdlineWithContext(context.Background())
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}
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func (p *Process) CmdlineWithContext(ctx context.Context) (string, error) {
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dst, err := GetWin32Proc(p.Pid)
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if err != nil {
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return "", fmt.Errorf("could not get CommandLine: %s", err)
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}
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return *dst[0].CommandLine, nil
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}
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// CmdlineSlice returns the command line arguments of the process as a slice with each
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// element being an argument. This merely returns the CommandLine informations passed
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// to the process split on the 0x20 ASCII character.
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func (p *Process) CmdlineSlice() ([]string, error) {
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return p.CmdlineSliceWithContext(context.Background())
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}
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func (p *Process) CmdlineSliceWithContext(ctx context.Context) ([]string, error) {
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cmdline, err := p.Cmdline()
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if err != nil {
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return nil, err
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}
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return strings.Split(cmdline, " "), nil
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}
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func (p *Process) CreateTime() (int64, error) {
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return p.CreateTimeWithContext(context.Background())
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}
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func (p *Process) CreateTimeWithContext(ctx context.Context) (int64, error) {
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ru, err := getRusage(p.Pid)
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if err != nil {
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return 0, fmt.Errorf("could not get CreationDate: %s", err)
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}
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return ru.CreationTime.Nanoseconds() / 1000000, nil
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}
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func (p *Process) Cwd() (string, error) {
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return p.CwdWithContext(context.Background())
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}
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func (p *Process) CwdWithContext(ctx context.Context) (string, error) {
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return "", common.ErrNotImplementedError
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}
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func (p *Process) Parent() (*Process, error) {
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return p.ParentWithContext(context.Background())
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}
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func (p *Process) ParentWithContext(ctx context.Context) (*Process, error) {
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dst, err := GetWin32Proc(p.Pid)
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if err != nil {
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return nil, fmt.Errorf("could not get ParentProcessID: %s", err)
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}
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return NewProcess(int32(dst[0].ParentProcessID))
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}
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func (p *Process) Status() (string, error) {
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return p.StatusWithContext(context.Background())
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}
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func (p *Process) StatusWithContext(ctx context.Context) (string, error) {
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return "", common.ErrNotImplementedError
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}
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func (p *Process) Username() (string, error) {
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return p.UsernameWithContext(context.Background())
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}
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func (p *Process) UsernameWithContext(ctx context.Context) (string, error) {
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pid := p.Pid
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// 0x1000 is PROCESS_QUERY_LIMITED_INFORMATION
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c, err := syscall.OpenProcess(0x1000, false, uint32(pid))
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if err != nil {
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return "", err
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}
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defer syscall.CloseHandle(c)
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var token syscall.Token
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err = syscall.OpenProcessToken(c, syscall.TOKEN_QUERY, &token)
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if err != nil {
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return "", err
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}
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defer token.Close()
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tokenUser, err := token.GetTokenUser()
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user, domain, _, err := tokenUser.User.Sid.LookupAccount("")
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return domain + "\\" + user, err
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}
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func (p *Process) Uids() ([]int32, error) {
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return p.UidsWithContext(context.Background())
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}
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func (p *Process) UidsWithContext(ctx context.Context) ([]int32, error) {
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var uids []int32
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return uids, common.ErrNotImplementedError
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}
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func (p *Process) Gids() ([]int32, error) {
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return p.GidsWithContext(context.Background())
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}
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func (p *Process) GidsWithContext(ctx context.Context) ([]int32, error) {
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var gids []int32
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return gids, common.ErrNotImplementedError
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}
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func (p *Process) Terminal() (string, error) {
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return p.TerminalWithContext(context.Background())
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}
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func (p *Process) TerminalWithContext(ctx context.Context) (string, error) {
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return "", common.ErrNotImplementedError
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}
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// Nice returnes priority in Windows
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func (p *Process) Nice() (int32, error) {
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return p.NiceWithContext(context.Background())
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}
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func (p *Process) NiceWithContext(ctx context.Context) (int32, error) {
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dst, err := GetWin32Proc(p.Pid)
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if err != nil {
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return 0, fmt.Errorf("could not get Priority: %s", err)
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}
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return int32(dst[0].Priority), nil
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}
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func (p *Process) IOnice() (int32, error) {
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return p.IOniceWithContext(context.Background())
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}
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func (p *Process) IOniceWithContext(ctx context.Context) (int32, error) {
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return 0, common.ErrNotImplementedError
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}
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func (p *Process) Rlimit() ([]RlimitStat, error) {
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return p.RlimitWithContext(context.Background())
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}
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func (p *Process) RlimitWithContext(ctx context.Context) ([]RlimitStat, error) {
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var rlimit []RlimitStat
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return rlimit, common.ErrNotImplementedError
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}
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func (p *Process) RlimitUsage(gatherUsed bool) ([]RlimitStat, error) {
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return p.RlimitUsageWithContext(context.Background(), gatherUsed)
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}
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func (p *Process) RlimitUsageWithContext(ctx context.Context, gatherUsed bool) ([]RlimitStat, error) {
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var rlimit []RlimitStat
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return rlimit, common.ErrNotImplementedError
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}
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func (p *Process) IOCounters() (*IOCountersStat, error) {
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return p.IOCountersWithContext(context.Background())
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}
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func (p *Process) IOCountersWithContext(ctx context.Context) (*IOCountersStat, error) {
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dst, err := GetWin32Proc(p.Pid)
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if err != nil || len(dst) == 0 {
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return nil, fmt.Errorf("could not get Win32Proc: %s", err)
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}
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ret := &IOCountersStat{
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ReadCount: uint64(dst[0].ReadOperationCount),
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ReadBytes: uint64(dst[0].ReadTransferCount),
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WriteCount: uint64(dst[0].WriteOperationCount),
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WriteBytes: uint64(dst[0].WriteTransferCount),
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}
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return ret, nil
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}
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func (p *Process) NumCtxSwitches() (*NumCtxSwitchesStat, error) {
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return p.NumCtxSwitchesWithContext(context.Background())
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}
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func (p *Process) NumCtxSwitchesWithContext(ctx context.Context) (*NumCtxSwitchesStat, error) {
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return nil, common.ErrNotImplementedError
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}
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func (p *Process) NumFDs() (int32, error) {
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return p.NumFDsWithContext(context.Background())
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}
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func (p *Process) NumFDsWithContext(ctx context.Context) (int32, error) {
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return 0, common.ErrNotImplementedError
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}
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func (p *Process) NumThreads() (int32, error) {
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return p.NumThreadsWithContext(context.Background())
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}
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func (p *Process) NumThreadsWithContext(ctx context.Context) (int32, error) {
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dst, err := GetWin32Proc(p.Pid)
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if err != nil {
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return 0, fmt.Errorf("could not get ThreadCount: %s", err)
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}
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return int32(dst[0].ThreadCount), nil
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}
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func (p *Process) Threads() (map[int32]*cpu.TimesStat, error) {
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return p.ThreadsWithContext(context.Background())
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}
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func (p *Process) ThreadsWithContext(ctx context.Context) (map[int32]*cpu.TimesStat, error) {
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ret := make(map[int32]*cpu.TimesStat)
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return ret, common.ErrNotImplementedError
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}
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func (p *Process) Times() (*cpu.TimesStat, error) {
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return p.TimesWithContext(context.Background())
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}
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func (p *Process) TimesWithContext(ctx context.Context) (*cpu.TimesStat, error) {
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sysTimes, err := getProcessCPUTimes(p.Pid)
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if err != nil {
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return nil, err
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}
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// User and kernel times are represented as a FILETIME structure
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// which contains a 64-bit value representing the number of
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// 100-nanosecond intervals since January 1, 1601 (UTC):
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// http://msdn.microsoft.com/en-us/library/ms724284(VS.85).aspx
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// To convert it into a float representing the seconds that the
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// process has executed in user/kernel mode I borrowed the code
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// below from psutil's _psutil_windows.c, and in turn from Python's
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// Modules/posixmodule.c
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user := float64(sysTimes.UserTime.HighDateTime)*429.4967296 + float64(sysTimes.UserTime.LowDateTime)*1e-7
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kernel := float64(sysTimes.KernelTime.HighDateTime)*429.4967296 + float64(sysTimes.KernelTime.LowDateTime)*1e-7
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return &cpu.TimesStat{
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User: user,
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System: kernel,
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}, nil
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}
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func (p *Process) CPUAffinity() ([]int32, error) {
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return p.CPUAffinityWithContext(context.Background())
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}
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func (p *Process) CPUAffinityWithContext(ctx context.Context) ([]int32, error) {
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return nil, common.ErrNotImplementedError
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}
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func (p *Process) MemoryInfo() (*MemoryInfoStat, error) {
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return p.MemoryInfoWithContext(context.Background())
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}
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func (p *Process) MemoryInfoWithContext(ctx context.Context) (*MemoryInfoStat, error) {
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mem, err := getMemoryInfo(p.Pid)
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if err != nil {
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return nil, err
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}
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ret := &MemoryInfoStat{
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RSS: uint64(mem.WorkingSetSize),
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VMS: uint64(mem.PagefileUsage),
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}
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return ret, nil
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}
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func (p *Process) MemoryInfoEx() (*MemoryInfoExStat, error) {
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return p.MemoryInfoExWithContext(context.Background())
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}
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func (p *Process) MemoryInfoExWithContext(ctx context.Context) (*MemoryInfoExStat, error) {
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return nil, common.ErrNotImplementedError
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}
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func (p *Process) Children() ([]*Process, error) {
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return p.ChildrenWithContext(context.Background())
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}
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func (p *Process) ChildrenWithContext(ctx context.Context) ([]*Process, error) {
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var dst []Win32_Process
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query := wmi.CreateQuery(&dst, fmt.Sprintf("Where ParentProcessId = %d", p.Pid))
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err := common.WMIQueryWithContext(ctx, query, &dst)
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if err != nil {
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return nil, err
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}
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out := []*Process{}
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for _, proc := range dst {
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p, err := NewProcess(int32(proc.ProcessID))
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if err != nil {
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continue
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}
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out = append(out, p)
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}
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return out, nil
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}
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func (p *Process) OpenFiles() ([]OpenFilesStat, error) {
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return p.OpenFilesWithContext(context.Background())
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}
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func (p *Process) OpenFilesWithContext(ctx context.Context) ([]OpenFilesStat, error) {
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return nil, common.ErrNotImplementedError
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}
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func (p *Process) Connections() ([]net.ConnectionStat, error) {
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return p.ConnectionsWithContext(context.Background())
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}
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func (p *Process) ConnectionsWithContext(ctx context.Context) ([]net.ConnectionStat, error) {
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return nil, common.ErrNotImplementedError
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}
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func (p *Process) NetIOCounters(pernic bool) ([]net.IOCountersStat, error) {
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return p.NetIOCountersWithContext(context.Background(), pernic)
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}
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func (p *Process) NetIOCountersWithContext(ctx context.Context, pernic bool) ([]net.IOCountersStat, error) {
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return nil, common.ErrNotImplementedError
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}
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func (p *Process) IsRunning() (bool, error) {
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return p.IsRunningWithContext(context.Background())
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}
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func (p *Process) IsRunningWithContext(ctx context.Context) (bool, error) {
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return true, common.ErrNotImplementedError
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}
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func (p *Process) MemoryMaps(grouped bool) (*[]MemoryMapsStat, error) {
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return p.MemoryMapsWithContext(context.Background(), grouped)
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}
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func (p *Process) MemoryMapsWithContext(ctx context.Context, grouped bool) (*[]MemoryMapsStat, error) {
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var ret []MemoryMapsStat
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return &ret, common.ErrNotImplementedError
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}
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func NewProcess(pid int32) (*Process, error) {
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p := &Process{Pid: pid}
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return p, nil
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}
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func (p *Process) SendSignal(sig windows.Signal) error {
|
|
return p.SendSignalWithContext(context.Background(), sig)
|
|
}
|
|
|
|
func (p *Process) SendSignalWithContext(ctx context.Context, sig windows.Signal) error {
|
|
return common.ErrNotImplementedError
|
|
}
|
|
|
|
func (p *Process) Suspend() error {
|
|
return p.SuspendWithContext(context.Background())
|
|
}
|
|
|
|
func (p *Process) SuspendWithContext(ctx context.Context) error {
|
|
return common.ErrNotImplementedError
|
|
}
|
|
func (p *Process) Resume() error {
|
|
return p.ResumeWithContext(context.Background())
|
|
}
|
|
|
|
func (p *Process) ResumeWithContext(ctx context.Context) error {
|
|
return common.ErrNotImplementedError
|
|
}
|
|
|
|
func (p *Process) Terminate() error {
|
|
return p.TerminateWithContext(context.Background())
|
|
}
|
|
|
|
func (p *Process) TerminateWithContext(ctx context.Context) error {
|
|
// PROCESS_TERMINATE = 0x0001
|
|
proc := w32.OpenProcess(0x0001, false, uint32(p.Pid))
|
|
ret := w32.TerminateProcess(proc, 0)
|
|
w32.CloseHandle(proc)
|
|
|
|
if ret == false {
|
|
return windows.GetLastError()
|
|
} else {
|
|
return nil
|
|
}
|
|
}
|
|
|
|
func (p *Process) Kill() error {
|
|
return p.KillWithContext(context.Background())
|
|
}
|
|
|
|
func (p *Process) KillWithContext(ctx context.Context) error {
|
|
process := os.Process{Pid: int(p.Pid)}
|
|
return process.Kill()
|
|
}
|
|
|
|
func getFromSnapProcess(pid int32) (int32, int32, string, error) {
|
|
snap := w32.CreateToolhelp32Snapshot(w32.TH32CS_SNAPPROCESS, uint32(pid))
|
|
if snap == 0 {
|
|
return 0, 0, "", windows.GetLastError()
|
|
}
|
|
defer w32.CloseHandle(snap)
|
|
var pe32 w32.PROCESSENTRY32
|
|
pe32.DwSize = uint32(unsafe.Sizeof(pe32))
|
|
if w32.Process32First(snap, &pe32) == false {
|
|
return 0, 0, "", windows.GetLastError()
|
|
}
|
|
|
|
if pe32.Th32ProcessID == uint32(pid) {
|
|
szexe := windows.UTF16ToString(pe32.SzExeFile[:])
|
|
return int32(pe32.Th32ParentProcessID), int32(pe32.CntThreads), szexe, nil
|
|
}
|
|
|
|
for w32.Process32Next(snap, &pe32) {
|
|
if pe32.Th32ProcessID == uint32(pid) {
|
|
szexe := windows.UTF16ToString(pe32.SzExeFile[:])
|
|
return int32(pe32.Th32ParentProcessID), int32(pe32.CntThreads), szexe, nil
|
|
}
|
|
}
|
|
return 0, 0, "", fmt.Errorf("Couldn't find pid: %d", pid)
|
|
}
|
|
|
|
// Get processes
|
|
func Processes() ([]*Process, error) {
|
|
return ProcessesWithContext(context.Background())
|
|
}
|
|
|
|
func ProcessesWithContext(ctx context.Context) ([]*Process, error) {
|
|
pids, err := Pids()
|
|
if err != nil {
|
|
return []*Process{}, fmt.Errorf("could not get Processes %s", err)
|
|
}
|
|
|
|
results := []*Process{}
|
|
for _, pid := range pids {
|
|
p, err := NewProcess(int32(pid))
|
|
if err != nil {
|
|
continue
|
|
}
|
|
results = append(results, p)
|
|
}
|
|
|
|
return results, nil
|
|
}
|
|
|
|
func getProcInfo(pid int32) (*SystemProcessInformation, error) {
|
|
initialBufferSize := uint64(0x4000)
|
|
bufferSize := initialBufferSize
|
|
buffer := make([]byte, bufferSize)
|
|
|
|
var sysProcInfo SystemProcessInformation
|
|
ret, _, _ := common.ProcNtQuerySystemInformation.Call(
|
|
uintptr(unsafe.Pointer(&sysProcInfo)),
|
|
uintptr(unsafe.Pointer(&buffer[0])),
|
|
uintptr(unsafe.Pointer(&bufferSize)),
|
|
uintptr(unsafe.Pointer(&bufferSize)))
|
|
if ret != 0 {
|
|
return nil, windows.GetLastError()
|
|
}
|
|
|
|
return &sysProcInfo, nil
|
|
}
|
|
|
|
func getRusage(pid int32) (*windows.Rusage, error) {
|
|
var CPU windows.Rusage
|
|
|
|
c, err := windows.OpenProcess(windows.PROCESS_QUERY_INFORMATION, false, uint32(pid))
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer windows.CloseHandle(c)
|
|
|
|
if err := windows.GetProcessTimes(c, &CPU.CreationTime, &CPU.ExitTime, &CPU.KernelTime, &CPU.UserTime); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return &CPU, nil
|
|
}
|
|
|
|
func getMemoryInfo(pid int32) (PROCESS_MEMORY_COUNTERS, error) {
|
|
var mem PROCESS_MEMORY_COUNTERS
|
|
// PROCESS_QUERY_LIMITED_INFORMATION is 0x1000
|
|
c, err := windows.OpenProcess(0x1000, false, uint32(pid))
|
|
if err != nil {
|
|
return mem, err
|
|
}
|
|
defer windows.CloseHandle(c)
|
|
if err := getProcessMemoryInfo(c, &mem); err != nil {
|
|
return mem, err
|
|
}
|
|
|
|
return mem, err
|
|
}
|
|
|
|
func getProcessMemoryInfo(h windows.Handle, mem *PROCESS_MEMORY_COUNTERS) (err error) {
|
|
r1, _, e1 := syscall.Syscall(procGetProcessMemoryInfo.Addr(), 3, uintptr(h), uintptr(unsafe.Pointer(mem)), uintptr(unsafe.Sizeof(*mem)))
|
|
if r1 == 0 {
|
|
if e1 != 0 {
|
|
err = error(e1)
|
|
} else {
|
|
err = syscall.EINVAL
|
|
}
|
|
}
|
|
return
|
|
}
|
|
|
|
type SYSTEM_TIMES struct {
|
|
CreateTime syscall.Filetime
|
|
ExitTime syscall.Filetime
|
|
KernelTime syscall.Filetime
|
|
UserTime syscall.Filetime
|
|
}
|
|
|
|
func getProcessCPUTimes(pid int32) (SYSTEM_TIMES, error) {
|
|
var times SYSTEM_TIMES
|
|
|
|
// PROCESS_QUERY_LIMITED_INFORMATION is 0x1000
|
|
h, err := windows.OpenProcess(0x1000, false, uint32(pid))
|
|
if err != nil {
|
|
return times, err
|
|
}
|
|
defer windows.CloseHandle(h)
|
|
|
|
err = syscall.GetProcessTimes(
|
|
syscall.Handle(h),
|
|
×.CreateTime,
|
|
×.ExitTime,
|
|
×.KernelTime,
|
|
×.UserTime,
|
|
)
|
|
|
|
return times, err
|
|
}
|