to disk. Fixes a problem where mod_disk_cache was leaving buckets in the
intermediate brigade and not passing them to out on exit.


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remove broken recursion counting bits


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* evaluate chains of ||, &&, and string concatenation non-recursively
* limit other types of recursion to 20 levels
* avoid some string copies if concatenating more than 2 strings


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project file exists


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  * remove "proxy:", "FCGI", etc. prefixes and pid which are now
    included in the error log format

  * propagate frontend request's logconfig to backend request
    
  * use ap_log_rerror where possible
    
  * remove obsolete APLOG_NOERRNO


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APR_EINTR is seen from apr_pollset_poll(), with expectation that
it was triggered by apr_pollset_wakeup()


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oriented definition, and add an example for a speed-optimized
configuration (commented out by default).

In the SSL How-To, streamline the SSLCipherSuite examples where
applicable (explicitly banning EXP and NULL is not needed when
only HIGH is specified).


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close support in Event.  these are set by the listener due to a residual
c->sbh for a worker thread no longer associated with the connection. 

the associated worker threads are really idle and blocked in 
ap_queue_pop_something and will serve new work normally.  but since they
are marked as SERVER_CLOSING rather than SERVER_READY in the scoreboard,
the parent process thinks they are busy and forks extra children.

reproduction recipe: start Event with server-status enabled.  hit
localhost/server-status?refresh=5 and watch the C's trail behind the lone W.



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2.4.x branch


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other non-standard feature (all but OS/2 have APR_POLLSET_WAKEABLE)

config-foo: don't require thread-safe pollset in order to
            build event

event.c: don't stress APR_ENOTIMPL in apr_pollset_create errors;
         just give the standard "check system or user limits"
         message


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Spotted by: Rüdiger Plüm


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Use apr_pollset_wakeup to ensure that the listener thread will process most enqueue'd events quickly


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Because the pollset is now only mutated from the event thread, we no longer need the APR_POLLSET_THREADSAFE flag for the event_pollset


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Create a new lock free circular queue, and use it in the EventMPM to remove the timeout mutex that was wrapping both timeout queue operations and pollset operations.


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Instead of disabling the listening sockets from the pollset when under load, just stop calling the accept call, but leave the sockets in the pollset.



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