[New-bugs-announce] [issue12034] check_GetFinalPathNameByHandle() suboptimal
Antoine Pitrou
report at bugs.python.org
Sun May 8 22:00:06 CEST 2011
New submission from Antoine Pitrou <pitrou at free.fr>:
The code for check_GetFinalPathNameByHandle() goes like this:
static int has_GetFinalPathNameByHandle = 0;
[...]
static int
check_GetFinalPathNameByHandle()
{
HINSTANCE hKernel32;
/* only recheck */
if (!has_GetFinalPathNameByHandle)
{
[...]
has_GetFinalPathNameByHandle = Py_GetFinalPathNameByHandleA &&
Py_GetFinalPathNameByHandleW;
}
return has_GetFinalPathNameByHandle;
}
It means that if the computed value is 0 (system doesn't have GetFinalPathNameByHandle*), the value will be re-computed each time the function is called. has_GetFinalPathNameByHandle should probably be tri-state instead (0, 1, unknown).
----------
components: Extension Modules
keywords: easy
messages: 135540
nosy: brian.curtin, pitrou
priority: low
severity: normal
status: open
title: check_GetFinalPathNameByHandle() suboptimal
type: performance
versions: Python 3.2, Python 3.3
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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue12034>
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