[Varnish] #914: varnishadm fails to read large responses from varnishd

[Varnish]

#914: varnishadm fails to read large responses from varnishd
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 Reporter:  drwilco          |        Type:  defect    
   Status:  new              |    Priority:  normal    
Milestone:  Varnish 3.0 dev  |   Component:  varnishadm
  Version:  trunk            |    Severity:  normal    
 Keywords:  varnishadm       |  
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 When using 'param.show -l' I got errors. A little digging showed that
 varnishadm uses a non-blocking socket to communicate with varnishd, but
 doesn't take EAGAIN/EWOULDBLOCK fully into account when reading responses.

 My patch fixes that by always doing a poll() before trying to read.

 https://github.com/drwilco/varnish-
 cache/commit/5094c2ae175d8335c79838ee5ecf89e3f9d4efb8

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Ticket URL: <http://www.varnish-cache.org/trac/ticket/914>
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