[squid-dev] [PATCH] Fix HttpStateData::readReply to retry reads from server

[Tsantilas Christos]

Hi all,

This patch fixes HttpStateData::readReply to retry read from server in 
the case of EINPROGRESS, EAGAIN or similar errors

This bug mostly affects SSL bumped connections. The 
HttpStateData::readReply will not retry read from server in the case of 
an EINPROGRESS or similar comm errors and the connection will hang, 
until the timeout handler called.

The Comm::ReadNow method, used inside  HttpStateData::readReply, call 
ignoreErrno function to test if the comm error should be ignored and in 
this case return Comm::INPROGRESS value.
In this case we need to set flags.do_next_read to true to force 
HttpStateData::maybeReadVirginBody() method retry read.

This is a Measurement Factory project
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