[TYPO3-core] RFC Bug #11033: Optimize hook to indexed_search that checks for a running crawler task

[Oliver Hader]

This is an SVN patch request.

Type: Bugfix

Bugtracker references:
http://bugs.typo3.org/view.php?id=11033

Branch: Trunk

Problem:
In indexed_search there's a hook defined that gets called from
TSFE->headerNoCache() to determine whether the crawler is currently
running. However, to do that simple check, the whole indexer PHP class
file is loaded which could be avoided.

Solution:
Extracted the method required for the mentioned hook to a slim separate
file.

Notes:
Profiling tests show that this call took 10ms before and 1ms afterwards.

olly
-- 
Oliver Hader
TYPO3 Release Manager 4.3
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