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Start 5 threads in the worker pool.



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three (straight, chunked, eof) modes we used to fetch the object.


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stat_field.h defines the counter fields with name, type, (printf)format
and description.

stats.h defines a structure with these fields.

shmlog.h makes the structure  part of the shared memory logs header.

Implent the "stats" CLI word in the management process.



git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@243 d4fa192b-c00b-0410-8231-f00ffab90ce4

Put discard objects on deathrow where they will be culled from
in sequence.

(prefetch not implemented yet)



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out what's going on.



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interface.



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we need to move the data structures into the right shape.

Push hashing into cache_hash.c

Add objhead structure to hold the various hits for "Vary:" headers.



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Mark objects with ttl=0 uncachable.

Add cacheable objects to the expiry heap

Start an expiry thread which polls the root element once per second




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Add a reference to the first backend {} we encounter, it is the default.
Add a reference to all backends assigned explicitly.
Add a reference to all methods.

Enable reference check, complain if: backend, function or acl is defined
but not used, or used but not defined.



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fh and fc sbufs.


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Both Linux and FreeBSD supports them anyway.



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	one for each VCL method to record the return
	one for errors
	one for linking a client session to a backend connection
Use them sensibly.
Put VCL name of backend into struct backend to improve log messages



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Generate the methods and their legal returns with the tcl script.

Add consistency checks to make sure methods don't use illegal returns,
and also check called subrourtines.

Add consistency check to complain about recursive subroutine calls.

Add consistency check to complain about unused or undefined subroutines.



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