[squid-dev] [PATCH] pconn_lifetime robustness fixes

[Tsantilas Christos]

Hi all,
  I am attaching which fixes pconn_lifetime feature.
We had a long discussion for this feature, which is resulted to the 
patch r13780, but unfortunately, Measurement Factory customers reported 
problems:

1. Squid closed connections with partially received requests when they 
reached pconn_lifetime limit. We should only close _idle_ connections.

2. When connecting to Squid without sending anything for longer than 
pconn_lifetime, the connection hangs if the request is sent after the 
waiting period.

3. The connection also hangs if the initial request is starting to be 
transmitted but then there is a longer pause before the request is 
completed.

Please read the patch preamble for more informations.

This is a Measurement Factory project.
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