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Fix indentation.



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socket, but took to.



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Assert that we read the C-source file.



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This solves the "restart" procaction issue in a non-hackish way
and looks better overall.



git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@3485 d4fa192b-c00b-0410-8231-f00ffab90ce4

elsewhere as required.

Remove unecessary args to VCL_[RM]ET_MAC().

Rely on VCL_RET_* definition in vcl.h



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logging.


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can be listend on.

Fixes #97


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backend.

The new logic is:
	If (HEAD)	/* happens only on pass */
		do not fetch body.
	else if (Content-Length)
		fetch body according to length
	else if (chunked)
		fetch body as chunked
	else if (other transfer-encoding)
		fail
	else if (Connection: keep-alive)
		fetch no body, set Length = 0
	else if (Connection: close)
		fetch body until EOF
	else if (HTTP < 1.1)
		fetch body until EOF
	else
		fetch no body, set Length = 0

let me know if this breaks anything that should work.

Fixes #400



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Fixes #409



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make VBE_free_bereq() and HSH_Deref() null their argument pointer.

Add HSH_Drop() for deorbiting unwanted busy objects.



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basically "return(action)" instead of just "action".

The previos syntax is still available.



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critbit hasher.



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Enable SHA256 digests by default, and put it in the objhead.  This
increases the size of the objhead by 32 bytes, but may drop
a bit again later, when other now unnecessary fields go away.

Test SHA256 for correct operation on startup.

About the "critbit" lookup:

To enable this, use "-hcritbit" argument.

"Crit Bit" trees, are also known under various other names, the original
version of the idea is probably the PATRICIA tree.

The basic concept is a tree structure which has nodes only where necessary
to tell the indices apart.

Our version of it, has some additional bells and whistles.

First lookups do not require any locks until we reach the objhead
we were looking for, or until we need to insert one which wasn't
there.

Second, the branch nodes are part of the objhead, as all but the
very first will need one, this saves malloc operations big time.

Now the down-sides:

There are still missing bits, amongst these the "cooling off" list,
for objheads that have been dereferenced, but where the branch-node
is not.  Currently we just leak that memory.

There is a race relating to node deref and unlocked lookup that is
not closed, weird things may happen until I fix it.

I'd be interested to hear how long it survives before it croaks,
but apart from that, would not advocate that you use it, until
I fix those remaining issues.



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