427 lines
10 KiB
Go
427 lines
10 KiB
Go
// +build windows
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package process
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import (
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"errors"
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"fmt"
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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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"github.com/shirou/w32"
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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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)
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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 = syscall.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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/*
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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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}
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func Pids() ([]int32, error) {
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var ret []int32
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procs, err := processes()
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if err != nil {
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return ret, nil
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}
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for _, proc := range procs {
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ret = append(ret, proc.Pid)
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}
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return ret, nil
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}
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func (p *Process) Ppid() (int32, error) {
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ret, _, _, err := p.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 ret, nil
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}
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func GetWin32Proc(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 := wmi.Query(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) != 1 {
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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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dst, err := GetWin32Proc(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 dst[0].Name, nil
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}
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func (p *Process) Exe() (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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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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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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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 "", common.ErrNotImplementedError
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}
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func (p *Process) Parent() (*Process, error) {
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return p, common.ErrNotImplementedError
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}
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func (p *Process) Status() (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 "", common.ErrNotImplementedError
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}
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func (p *Process) Uids() ([]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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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 "", 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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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 0, common.ErrNotImplementedError
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}
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func (p *Process) Rlimit() ([]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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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 nil, common.ErrNotImplementedError
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}
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func (p *Process) NumFDs() (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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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[string]string, error) {
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ret := make(map[string]string, 0)
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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 nil, common.ErrNotImplementedError
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}
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func (p *Process) CPUAffinity() ([]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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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 nil, common.ErrNotImplementedError
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}
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func (p *Process) Children() ([]*Process, error) {
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return nil, common.ErrNotImplementedError
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}
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func (p *Process) OpenFiles() ([]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 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 nil, common.ErrNotImplementedError
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}
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func (p *Process) IsRunning() (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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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 syscall.Signal) error {
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return common.ErrNotImplementedError
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}
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func (p *Process) Suspend() error {
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return common.ErrNotImplementedError
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}
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func (p *Process) Resume() error {
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return common.ErrNotImplementedError
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}
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func (p *Process) Terminate() error {
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return common.ErrNotImplementedError
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}
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func (p *Process) Kill() error {
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return common.ErrNotImplementedError
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}
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func (p *Process) getFromSnapProcess(pid int32) (int32, int32, string, error) {
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snap := w32.CreateToolhelp32Snapshot(w32.TH32CS_SNAPPROCESS, uint32(pid))
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if snap == 0 {
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return 0, 0, "", syscall.GetLastError()
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}
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defer w32.CloseHandle(snap)
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var pe32 w32.PROCESSENTRY32
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pe32.DwSize = uint32(unsafe.Sizeof(pe32))
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if w32.Process32First(snap, &pe32) == false {
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return 0, 0, "", syscall.GetLastError()
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}
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if pe32.Th32ProcessID == uint32(pid) {
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szexe := syscall.UTF16ToString(pe32.SzExeFile[:])
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return int32(pe32.Th32ParentProcessID), int32(pe32.CntThreads), szexe, nil
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}
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for w32.Process32Next(snap, &pe32) {
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if pe32.Th32ProcessID == uint32(pid) {
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szexe := syscall.UTF16ToString(pe32.SzExeFile[:])
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return int32(pe32.Th32ParentProcessID), int32(pe32.CntThreads), szexe, nil
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}
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}
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return 0, 0, "", errors.New("Couldn't find pid:" + string(pid))
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}
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// Get processes
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func processes() ([]*Process, error) {
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var dst []Win32_Process
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q := wmi.CreateQuery(&dst, "")
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err := wmi.Query(q, &dst)
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if err != nil {
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return []*Process{}, err
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}
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if len(dst) == 0 {
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return []*Process{}, fmt.Errorf("could not get Process")
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}
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results := make([]*Process, 0, len(dst))
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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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results = append(results, p)
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}
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return results, nil
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}
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func getProcInfo(pid int32) (*SystemProcessInformation, error) {
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initialBufferSize := uint64(0x4000)
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bufferSize := initialBufferSize
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buffer := make([]byte, bufferSize)
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var sysProcInfo SystemProcessInformation
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ret, _, _ := common.ProcNtQuerySystemInformation.Call(
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uintptr(unsafe.Pointer(&sysProcInfo)),
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uintptr(unsafe.Pointer(&buffer[0])),
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uintptr(unsafe.Pointer(&bufferSize)),
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uintptr(unsafe.Pointer(&bufferSize)))
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if ret != 0 {
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return nil, syscall.GetLastError()
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}
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return &sysProcInfo, nil
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}
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func getRusage(pid int32) (*syscall.Rusage, error) {
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var CPU syscall.Rusage
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c, err := syscall.OpenProcess(syscall.PROCESS_QUERY_INFORMATION, false, uint32(pid))
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if err != nil {
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return nil, err
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}
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defer syscall.CloseHandle(c)
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if err := syscall.GetProcessTimes(c, &CPU.CreationTime, &CPU.ExitTime, &CPU.KernelTime, &CPU.UserTime); err != nil {
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return nil, err
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}
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return &CPU, nil
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}
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func getMemoryInfo(pid int32) (PROCESS_MEMORY_COUNTERS, error) {
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var mem PROCESS_MEMORY_COUNTERS
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c, err := syscall.OpenProcess(syscall.PROCESS_QUERY_INFORMATION, false, uint32(pid))
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if err != nil {
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return mem, err
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}
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defer syscall.CloseHandle(c)
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if err := getProcessMemoryInfo(c, &mem); err != nil {
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return mem, err
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}
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return mem, err
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}
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func getProcessMemoryInfo(h syscall.Handle, mem *PROCESS_MEMORY_COUNTERS) (err error) {
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r1, _, e1 := syscall.Syscall(procGetProcessMemoryInfo.Addr(), 3, uintptr(h), uintptr(unsafe.Pointer(mem)), uintptr(unsafe.Sizeof(*mem)))
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if r1 == 0 {
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if e1 != 0 {
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err = error(e1)
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} else {
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err = syscall.EINVAL
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}
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}
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return
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}
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