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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,77 @@ | ||
| unit TdSnapshot; | ||
|
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| interface | ||
|
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| uses | ||
| Winapi.WinNt; | ||
|
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| type | ||
| TThreadFlag = (tfGUI); | ||
| TThreadFlags = set of TThreadFlag; | ||
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| TThreadData = record | ||
| TID: TThreadID; | ||
| Flags: TThreadFlags; | ||
| end; | ||
|
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| // Find all threads that belong to this process | ||
| function SnapshotThreads(PID: TProcessId): TArray<TThreadData>; | ||
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| implementation | ||
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| uses | ||
| Ntapi.ntdef, Ntapi.ntpsapi, Ntapi.ntobapi, Ntapi.ntstatus, | ||
| NtUtils.Objects, NtUtils.WinUser; | ||
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| function SnapshotThreads(PID: TProcessId): TArray<TThreadData>; | ||
| var | ||
| ProcessInfo, ThreadInfo: TObjectTypeInfo; | ||
| i: Integer; | ||
| CID: TClientId; | ||
| hThread: THandle; | ||
| ObjAttr: TObjectAttributes; | ||
| Status: NTSTATUS; | ||
| begin | ||
| Result := nil; | ||
|
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| // Determine the total amount of processes and threads | ||
| if not NtxQueryTypeObject(NtCurrentProcess, ProcessInfo).IsSuccess then | ||
| ProcessInfo.Other.HighWaterNumberOfObjects := 300; | ||
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| // Fallback to reasonable limits on failure | ||
| if not NtxQueryTypeObject(NtCurrentThread, ThreadInfo).IsSuccess then | ||
| ThreadInfo.Other.HighWaterNumberOfObjects := 2000; | ||
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| InitializeObjectAttributes(ObjAttr); | ||
| CID.UniqueProcess := PID; | ||
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| for i := 3 to ProcessInfo.Other.HighWaterNumberOfObjects + | ||
| ThreadInfo.Other.HighWaterNumberOfObjects do | ||
| begin | ||
| // Thread IDs are always divisable by 4 | ||
| CID.UniqueThread := i shl 2; | ||
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| // Thy this pair of PID + TID | ||
| Status := NtOpenThread(hThread, 0, ObjAttr, CID); | ||
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| // NtOpenThread performs a lookup first, and since we supplied both | ||
| // process and thread IDs, the status indicates whether the thread | ||
| // belongs to the process or not. | ||
| if Status <> STATUS_INVALID_CID then | ||
| begin | ||
| // Save it | ||
| SetLength(Result, Succ(Length(Result))); | ||
| Result[High(Result)].TID := CID.UniqueThread; | ||
| end; | ||
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| if NT_SUCCESS(Status) then | ||
| NtClose(hThread); | ||
| end; | ||
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| // Mark all GUI threads | ||
| for i := 0 to High(Result) do | ||
| if UsrxIsGuiThread(Result[i].TID) then | ||
| Include(Result[i].Flags, tfGUI); | ||
| end; | ||
|
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||
| end. |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,60 @@ | ||
| object FormProcessInfo: TFormProcessInfo | ||
| Left = 0 | ||
| Top = 0 | ||
| BorderIcons = [biSystemMenu, biMaximize] | ||
| Caption = 'Process Information' | ||
| ClientHeight = 305 | ||
| ClientWidth = 288 | ||
| Color = clBtnFace | ||
| Font.Charset = DEFAULT_CHARSET | ||
| Font.Color = clWindowText | ||
| Font.Height = -11 | ||
| Font.Name = 'Tahoma' | ||
| Font.Style = [] | ||
| KeyPreview = True | ||
| OldCreateOrder = False | ||
| OnClose = FormClose | ||
| OnCreate = FormCreate | ||
| OnKeyPress = FormKeyPress | ||
| PixelsPerInch = 96 | ||
| TextHeight = 13 | ||
| object PageControl: TPageControl | ||
| AlignWithMargins = True | ||
| Left = 3 | ||
| Top = 3 | ||
| Width = 282 | ||
| Height = 299 | ||
| ActivePage = ThreadsTab | ||
| Align = alClient | ||
| TabOrder = 0 | ||
| object ThreadsTab: TTabSheet | ||
| Caption = 'Threads' | ||
| object lvThreads: TListViewEx | ||
| AlignWithMargins = True | ||
| Left = 3 | ||
| Top = 3 | ||
| Width = 268 | ||
| Height = 265 | ||
| Align = alClient | ||
| Columns = < | ||
| item | ||
| Caption = 'Thread ID' | ||
| Width = 120 | ||
| end | ||
| item | ||
| Caption = 'Flags' | ||
| Width = 100 | ||
| end> | ||
| DoubleBuffered = True | ||
| GridLines = True | ||
| MultiSelect = True | ||
| ReadOnly = True | ||
| RowSelect = True | ||
| ParentDoubleBuffered = False | ||
| TabOrder = 0 | ||
| ViewStyle = vsReport | ||
| ColoringItems = True | ||
| end | ||
| end | ||
| end | ||
| end |
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