[pywin32-bugs] [ pywin32-Bugs-3017949 ] pythonwin leaks directory handles, holds directory open

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Bugs item #3017949, was opened at 2010-06-18 04:15
Message generated for change (Comment added) made by rupole
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Category: pythonwin
Group: None
>Status: Closed
>Resolution: Fixed
Priority: 5
Private: No
Submitted By: Greg Hazel (ghazel)
Assigned to: Nobody/Anonymous (nobody)
Summary: pythonwin leaks directory handles, holds directory open

Initial Comment:
Pythonwin seems to keep an open handle to a directory after opening and closing a file. Here's a demonstration:


... make sure PythonWin is closed ...

J:\>mkdir test

J:\>cd test

J:\test>echo > foo

J:\test>pythonwin foo


... close 'foo' in PythonWin, but do not close PythonWin ...


J:\test>cd ..

J:\>rmdir /S /Q test
The process cannot access the file because it is being used by another process.

J:\handle test

Handle v3.42
Copyright (C) 1997-2008 Mark Russinovich
Sysinternals - www.sysinternals.com

Pythonwin.exe      pid: 5468      8: J:\test
Pythonwin.exe      pid: 5468    208: J:\test

J:\>handle -p pythonwin

Handle v3.42
Copyright (C) 1997-2008 Mark Russinovich
Sysinternals - www.sysinternals.com

------------------------------------------------------------------------------
Pythonwin.exe pid: 5468 greg-x60\Greg
    8: File  (---)   J:\test
    C: File  (---)   C:\Windows\winsxs\x86_microsoft.vc90.mfc_1fc8b3b9a1e18e3b_9.0.30729.4974_none_4bf89ae8bf9a48c0
   10: File  (---)   C:\Windows\winsxs\x86_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.4974_none_50940634bcb759cb
   18: File  (---)   C:\Windows\winsxs\x86_microsoft.windows.common-controls_6595b64144ccf1df_5.82.7600.16385_none_ebf82fc36c758ad5
   5C: File  (---)   C:\Windows\winsxs\x86_microsoft.vc90.mfcloc_1fc8b3b9a1e18e3b_9.0.30729.4974_none_497745fb754785d2
   84: File  (---)   C:\Windows\winsxs\x86_microsoft.vc90.mfc_1fc8b3b9a1e18e3b_9.0.30729.4974_none_4bf89ae8bf9a48c0
   88: File  (---)   C:\Windows\winsxs\x86_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.4974_none_50940634bcb759cb
   8C: File  (---)   C:\Windows\winsxs\x86_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.4974_none_50940634bcb759cb
   90: File  (---)   C:\Windows\winsxs\x86_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.4974_none_50940634bcb759cb
   C8: File  (---)   C:\Windows\System32\en-US\KernelBase.dll.mui
   D8: File  (---)   C:\Windows\winsxs\x86_microsoft.vc90.mfc_1fc8b3b9a1e18e3b_9.0.30729.4974_none_4bf89ae8bf9a48c0
   DC: File  (---)   C:\Windows\winsxs\x86_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.4974_none_50940634bcb759cb
  100: File  (---)   C:\Windows\winsxs\x86_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.4974_none_50940634bcb759cb
  110: File  (---)   C:\Windows\Fonts\StaticCache.dat
  120: File  (---)   C:\Windows\winsxs\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.7600.16385_none_421189da2b7fabfc
  124: File  (---)   C:\Windows\winsxs\x86_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.4974_none_50940634bcb759cb
  130: Section       \Sessions\1\BaseNamedObjects\windows_shell_global_counters
  138: File  (---)   C:\Windows\winsxs\x86_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.4974_none_50940634bcb759cb
  14C: File  (---)   C:\Windows\winsxs\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.7600.16385_none_421189da2b7fabfc
  16C: Section       \BaseNamedObjects\__ComCatalogCache__
  178: Section       \BaseNamedObjects\__ComCatalogCache__
  188: Section       \BaseNamedObjects\windows_shell_global_counters
  208: File  (---)   J:\test


It will continue to add one handle to J:\test for each time J:\test\foo is opened.


----------------------------------------------------------------------

>Comment By: Roger Upole (rupole)
Date: 2010-06-18 12:30

Message:
The thread that monitors files for external changes wasn't releasing its
change notification handle.
Fixed in document.py r1.15.


----------------------------------------------------------------------

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