an object structure.



git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@4266 d4fa192b-c00b-0410-8231-f00ffab90ce4

git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@4265 d4fa192b-c00b-0410-8231-f00ffab90ce4

Increase the ID field in the shmlog records from 16 to 32 bits to cater
for 64k+ connections.

Both varnishd and libvarnishapi needs to be recompiled, but apps should
not need to.



git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@4264 d4fa192b-c00b-0410-8231-f00ffab90ce4

attempting a reply.

Fixes #561



git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@4263 d4fa192b-c00b-0410-8231-f00ffab90ce4

We still do not have the cleaner, so when we run out of space we simply
exit the worker process with a message, the restart will blow away some
segments and thus make some space for us.



git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@4262 d4fa192b-c00b-0410-8231-f00ffab90ce4

git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@4261 d4fa192b-c00b-0410-8231-f00ffab90ce4

Submitted by:	"Jos I. Boumans" <jos@dwim.org>


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because vcl_recv does "return(error);", force the status to 501.

Fixes: #558


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progress.



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some significant changes to the policy.



git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@4228 d4fa192b-c00b-0410-8231-f00ffab90ce4

appropriate location for this code.



git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@4227 d4fa192b-c00b-0410-8231-f00ffab90ce4

to fix the discrepancy in the object/objcore count they would otherwise
represent.

XXX: Not quite sure if they should also be counted as a subset of
n_object to give people an easy way to access "total objects available
in cache".  Will decide this later.




git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@4226 d4fa192b-c00b-0410-8231-f00ffab90ce4

what is leaking.



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and instead (ab)used the obj.* set.

This allowed, amongst other things, the headers of cached objects
to be munged by subsequent cache-hits.

This was just as bad an idea as it sounds.

The downside was, that we had to reserve object workspace for the
potentially created headers, and this really bites, memory wise,
if your content is many small objects.

This commit allows, and sets obj_workspace to zero, allocating only
as much space as is necessary for the actual headers after vcl_fetch()
has returned.

The downside is, without extra workspace, you can no longer change
the content of obj.* string variables after the vcl_fetch() which
instantiated the object.

For now we still allow the obj_workspace to be set to reserve such
space, but in all likelyhood, this ability will disappear in the
future.





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busy cache entry or to ditch it.

Ditch it as soon as we can, so we don't hold other clients on a busy objcore
longer than necessary.



git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@4222 d4fa192b-c00b-0410-8231-f00ffab90ce4

Fixes #549



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replace a half-baked one in vtc.c with it.



git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@4219 d4fa192b-c00b-0410-8231-f00ffab90ce4

expiry thread from moving objcores from one list to another.



git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@4218 d4fa192b-c00b-0410-8231-f00ffab90ce4

I can tell FlexeLint to ignore them.



git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@4217 d4fa192b-c00b-0410-8231-f00ffab90ce4

Add a parameter, so the worker thread gets forced to dump stats
into the global pool for every N requests it serves.

This should solve the problem where a wget(1) client does not
show up in the stats, until the session ends.



git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@4216 d4fa192b-c00b-0410-8231-f00ffab90ce4

Move most of the stat fields used in cache_center.c into the workers
private stats, hopefully reducing the lock contention and stats
precision at the same time.



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The cruical difference is that we can remove from a VLIST without
having the head of the VLIST, which comes handy when expiring a
non-instantiated object from a -spersistent stevedore.

We flip the LRU list around, so that the frontmost element has not
been accessed for the longest time, and simulate tail-inserts by
putting a senteniel on the tail of the list.

Presently the senteniel is a full objcore, which is a non-issue with
few machines having more than a handful of stevedores, but once the
persistent stevedore moves to per-segment LRU lists, this needs to
be addressed, probably by wrapping the LRU linkage in a separate
structure.


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