Message102537
I just found a one line example of the problem:
>>> EnumValue(HKEY_PERFORMANCE_DATA, 0)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
WindowsError: [Error 234] More data is available
Other functions are also affected:
>>> QueryValueEx(HKEY_PERFORMANCE_DATA, None)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
WindowsError: [Error 234] More data is available
In a nutshell, the Python implementation of these functions works like this:
1) Query the API for the length of the value
2) Allocate a buffer of that size
3) Query the API for the value
However, the API functions called in step #1 are not guaranteed to be accurate. It works *most* of the time, but if step #3 returns ERROR_MORE_DATA then we need to dynamically grow the buffer and try again until the data fits.
I'll have a patch (with test cases) ready later today. |
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Date |
User |
Action |
Args |
2010-04-07 13:12:01 | stutzbach | set | recipients:
+ stutzbach, loewis, techtonik, enolte, brian.curtin |
2010-04-07 13:12:01 | stutzbach | set | messageid: <1270645921.22.0.26576557249.issue2810@psf.upfronthosting.co.za> |
2010-04-07 13:12:00 | stutzbach | link | issue2810 messages |
2010-04-07 13:11:59 | stutzbach | create | |
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