]>
err.no Git - varnish/log
phk [Tue, 16 Oct 2007 10:17:24 +0000 (10:17 +0000)]
Silence flexelint
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2104
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phk [Tue, 16 Oct 2007 09:11:45 +0000 (09:11 +0000)]
Flexelint polishing.
Always enforce the 2GB filesize limit on 32bit architectures.
Clean up a couple of messages
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2101
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phk [Tue, 16 Oct 2007 09:03:18 +0000 (09:03 +0000)]
Reduce number of TIM_real() calls slightly in multi socket case.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2100
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phk [Tue, 16 Oct 2007 09:00:48 +0000 (09:00 +0000)]
Flexelint polish
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2099
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phk [Tue, 16 Oct 2007 09:00:22 +0000 (09:00 +0000)]
Flexelint polish
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2098
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des [Wed, 10 Oct 2007 13:23:15 +0000 (13:23 +0000)]
Fix braino in Solaris compat bit.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2097
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phk [Tue, 9 Oct 2007 07:22:46 +0000 (07:22 +0000)]
Keep track of the highest fd so we don't give poll(2) more pfd's to
chew than necessary.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2096
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phk [Mon, 8 Oct 2007 19:15:41 +0000 (19:15 +0000)]
Try to optimize the poll acceptor by moving active entries to the
front of the linked list where they will be found faster later on.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2095
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phk [Mon, 8 Oct 2007 16:40:28 +0000 (16:40 +0000)]
Give the 503 returns a protocol and a response as well.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2094
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phk [Mon, 8 Oct 2007 15:34:32 +0000 (15:34 +0000)]
Don't use vca_return_session() when we can SES_Delete()
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2093
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phk [Mon, 8 Oct 2007 14:12:06 +0000 (14:12 +0000)]
More asserts
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2092
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phk [Mon, 8 Oct 2007 13:20:57 +0000 (13:20 +0000)]
EOF transfers are not limited to pre HTTP/1.1 backends, no idea why
I thought so previously.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2091
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phk [Mon, 8 Oct 2007 11:32:30 +0000 (11:32 +0000)]
We may in fact not have any headers.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2090
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phk [Mon, 8 Oct 2007 11:28:39 +0000 (11:28 +0000)]
Only attempt to decode status integer if we have a good separation.
Possibly ticket #164
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2089
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phk [Mon, 8 Oct 2007 11:28:11 +0000 (11:28 +0000)]
Add an assert for spotting ticket #162
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2088
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phk [Mon, 8 Oct 2007 10:33:46 +0000 (10:33 +0000)]
Catch EOF on reads instead of looping.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2087
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phk [Mon, 8 Oct 2007 10:25:47 +0000 (10:25 +0000)]
Drop the asserts around shutdown(2), there are a number of
legitimate error conditions.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2086
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phk [Mon, 8 Oct 2007 09:34:36 +0000 (09:34 +0000)]
upd
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2085
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phk [Mon, 8 Oct 2007 08:14:09 +0000 (08:14 +0000)]
More acceptor work:
Make HTC_Rx() return a distinct value for overflow/blast.
Teach vca_handover() to handle HTC_Rx() return status
Use HTC_Rx/vca_handover this way in all three acceptors.
Eliminate vca_pollsession()
Teach CNT_First() about HTC_Rx states.
Log which acceptor we use in shmlog
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2084
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phk [Mon, 8 Oct 2007 07:51:31 +0000 (07:51 +0000)]
Bail normally instead of asserting on buffer full.
Drop leading whitespace if so informed.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2083
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phk [Mon, 8 Oct 2007 07:50:31 +0000 (07:50 +0000)]
Use HTC_Rx() directly instead of vca_pollsession() wrapper
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2082
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phk [Mon, 8 Oct 2007 07:49:26 +0000 (07:49 +0000)]
comments/style
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2081
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phk [Mon, 8 Oct 2007 07:19:52 +0000 (07:19 +0000)]
Try to make the pipe code even more robust
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2080
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phk [Mon, 8 Oct 2007 07:18:48 +0000 (07:18 +0000)]
Flush the threads shmlog before we try to make up a reponse, so that
we know what transactions trigger problems in that code.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2079
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ssm [Fri, 5 Oct 2007 09:15:09 +0000 (09:15 +0000)]
Fix ticket #166, debian package issues
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2078
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phk [Mon, 1 Oct 2007 12:44:19 +0000 (12:44 +0000)]
Go over pipe's polling code and try to do it right in one go by
actually paying attention to what goes on.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2077
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phk [Mon, 1 Oct 2007 12:27:49 +0000 (12:27 +0000)]
Oops, last commit included some debugging
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2076
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phk [Mon, 1 Oct 2007 12:25:37 +0000 (12:25 +0000)]
Remember to move numeric status when we filter one http to another.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2075
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phk [Mon, 1 Oct 2007 09:04:15 +0000 (09:04 +0000)]
Initialize the obj->ws before we use it.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2074
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phk [Mon, 1 Oct 2007 08:54:26 +0000 (08:54 +0000)]
Move the objects and their http header into storage instead of
malloc'ing them.
This should reduce the N(nobj) swap-loading considerably.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2073
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phk [Mon, 1 Oct 2007 07:45:58 +0000 (07:45 +0000)]
Move the workerthreads log from malloc to stack.
Dump sizes of various structures on startup.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2072
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phk [Mon, 1 Oct 2007 07:27:37 +0000 (07:27 +0000)]
Eliminate a & which I tend to forget every single time.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2071
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phk [Mon, 1 Oct 2007 07:21:26 +0000 (07:21 +0000)]
We always want to go through vcl_fetch(), even on error 503
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2070
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phk [Sun, 30 Sep 2007 21:27:16 +0000 (21:27 +0000)]
Add VCL action "esi" and a vrt file to contain it.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2069
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phk [Sun, 30 Sep 2007 21:11:21 +0000 (21:11 +0000)]
Make the number of restarts a parameter.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2068
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phk [Sun, 30 Sep 2007 20:57:30 +0000 (20:57 +0000)]
Add the first stab at a "restart" mechanism.
The intent is to be able to do things like:
backend b1 {
set backend.host = "fs.freebsd.dk";
set backend.port = "82";
}
backend b2 {
set backend.host = "fs.freebsd.dk";
set backend.port = "81";
}
backend b3 {
set backend.host = "fs.freebsd.dk";
set backend.port = "80";
}
sub vcl_recv {
remove req.http.cookie;
if (req.restarts == 0) {
set req.backend = b1;
} else if (req.restarts == 1) {
set req.backend = b2;
} else {
set req.backend = b3;
}
}
sub vcl_fetch {
if (obj.status != 200) {
restart;
}
}
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2067
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phk [Sun, 30 Sep 2007 20:38:15 +0000 (20:38 +0000)]
Add req.restarts variable.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2066
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phk [Sun, 30 Sep 2007 20:36:16 +0000 (20:36 +0000)]
Add "restart" action for most VCL methods.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2065
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phk [Sun, 30 Sep 2007 20:19:50 +0000 (20:19 +0000)]
Evict backend-health code which had strayed fra from it's proper place.
cache_fetch.c now reports the response code or a indicative negative
status for failed requests to the backend code.
Any timeouts, keepalives or other overhead processing of health codes
should happen in a thread in the backend handling.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2064
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phk [Sun, 30 Sep 2007 20:16:28 +0000 (20:16 +0000)]
More caching of HTTP status
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2063
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phk [Sun, 30 Sep 2007 20:08:26 +0000 (20:08 +0000)]
Cache the numeric status code.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2062
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phk [Sun, 30 Sep 2007 19:54:28 +0000 (19:54 +0000)]
Significantly reduce level of paranoia.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2061
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phk [Sun, 30 Sep 2007 19:54:06 +0000 (19:54 +0000)]
We may not have a worker thread here, we could be called from the
acceptor code on a timeout.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2060
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phk [Sun, 30 Sep 2007 19:44:06 +0000 (19:44 +0000)]
Remove unused #includes
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2059
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phk [Sun, 30 Sep 2007 19:42:16 +0000 (19:42 +0000)]
nitpicking
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2058
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phk [Sun, 30 Sep 2007 19:42:08 +0000 (19:42 +0000)]
Set the poll'ed fd to -1 when we halfclose the fd to avoid
an infinite loop on certain OS's.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2057
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phk [Sat, 29 Sep 2007 20:53:53 +0000 (20:53 +0000)]
Another cleanup commit:
Get rid of the httptag enum, we can use the HTTP_T values instead.
Introduce WSP macro to wrap log entries which has a session.
Add our own vctyp() character classifier to simplify HTTP protocol
message parsing.
Unify http_DissectRequest() and http_DissectResponse() processing.
Unify writing of the 5 byte SHMLOG header and other minor cleanups
to shmlog code.
Silence some signed/unsigned/int width warnings in FlexeLint
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2056
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phk [Fri, 28 Sep 2007 20:13:48 +0000 (20:13 +0000)]
Complete the split of HTTP-editing and HTTP-transmission functions.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2055
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phk [Fri, 28 Sep 2007 13:13:11 +0000 (13:13 +0000)]
Initial split of code which transfer HTTP protocol messages
over sockets and things which manipulate them in memory.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2054
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phk [Fri, 28 Sep 2007 13:04:53 +0000 (13:04 +0000)]
Move the WS_ prototypes down where they belong.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2053
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phk [Fri, 28 Sep 2007 11:07:14 +0000 (11:07 +0000)]
Push the http structure out of the early bits of the reception code.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2052
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phk [Fri, 28 Sep 2007 10:29:12 +0000 (10:29 +0000)]
Preparation for implementation of restarts: Move the ws from http to
the containing object (session or obj).
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2051
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des [Thu, 27 Sep 2007 10:08:30 +0000 (10:08 +0000)]
Use CHECK_OBJ_ORNULL().
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2050
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phk [Wed, 26 Sep 2007 19:43:56 +0000 (19:43 +0000)]
don't make acl's const, they are not.
Reported by: Martin Aspeli <optilude@gmx.net>
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2049
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phk [Wed, 26 Sep 2007 19:38:04 +0000 (19:38 +0000)]
More txt'ing
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2048
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phk [Wed, 26 Sep 2007 19:20:17 +0000 (19:20 +0000)]
another place we can use Tlen
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2047
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phk [Wed, 26 Sep 2007 19:15:25 +0000 (19:15 +0000)]
Use the new txt type more extensively, it does improve readability a bit.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2046
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phk [Wed, 26 Sep 2007 18:59:28 +0000 (18:59 +0000)]
Convert the received request and pipelined bytes into txt's.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2045
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phk [Wed, 26 Sep 2007 18:56:18 +0000 (18:56 +0000)]
struct http_hdr is more than that, it is a general text handle, so
typedef it as "txt" instead.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2044
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phk [Tue, 25 Sep 2007 13:19:07 +0000 (13:19 +0000)]
More flexelint nit-picking of various sorts
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2043
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phk [Tue, 25 Sep 2007 11:51:49 +0000 (11:51 +0000)]
Constify a lot of the VRT API
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2042
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phk [Tue, 25 Sep 2007 11:11:15 +0000 (11:11 +0000)]
Mega-Const'ification
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2041
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phk [Tue, 25 Sep 2007 11:05:25 +0000 (11:05 +0000)]
If the C-compiler fails, we don't know if it created the output file or not.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2040
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phk [Tue, 25 Sep 2007 10:36:59 +0000 (10:36 +0000)]
Constification
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2039
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phk [Tue, 25 Sep 2007 10:35:44 +0000 (10:35 +0000)]
Constification of certain storage functions
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2038
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phk [Tue, 25 Sep 2007 10:32:24 +0000 (10:32 +0000)]
Make Tim_format() take a double time argument
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2037
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phk [Tue, 25 Sep 2007 10:25:51 +0000 (10:25 +0000)]
Make the arguments to CLI functions const-const.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2036
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phk [Tue, 25 Sep 2007 10:24:34 +0000 (10:24 +0000)]
Catch up with sys/queue.h changes
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2035
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des [Tue, 25 Sep 2007 08:48:14 +0000 (08:48 +0000)]
The previous commit made things worse rather than better, as some systems
have a <sys/queue.h> that differs in small but important details from what
we expect. Replace our "queue.h" (which was taken from NetBSD) with a new
"vqueue.h" which is based on FreeBSD's <sys/queue.h> with the debugging
taken out and a "V" prefix added to everything.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2033
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des [Tue, 25 Sep 2007 08:21:28 +0000 (08:21 +0000)]
Portability: use -lsocket / -lns on systems that need it (read Solaris),
use <sys/queue.h> instead of our own if present.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2032
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des [Tue, 25 Sep 2007 08:19:50 +0000 (08:19 +0000)]
Use a config cache.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2031
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phk [Tue, 25 Sep 2007 07:57:21 +0000 (07:57 +0000)]
New more paranoid settings for FlexeLint
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2030
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phk [Tue, 25 Sep 2007 07:57:06 +0000 (07:57 +0000)]
Make the logic visible for FlexeLint
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2029
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phk [Tue, 25 Sep 2007 07:40:01 +0000 (07:40 +0000)]
Misc changes:
A couple of XXX comments
Some returnvalue asserts
Some pdiff() uses
Change WRK_Flush() to return unsigned
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2028
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phk [Tue, 25 Sep 2007 07:33:07 +0000 (07:33 +0000)]
Unnecessary check
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2027
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phk [Tue, 25 Sep 2007 07:32:15 +0000 (07:32 +0000)]
Bail if we get unknown address families
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2026
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phk [Tue, 25 Sep 2007 07:30:38 +0000 (07:30 +0000)]
Assert return values of system{calls,functions}
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2025
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phk [Tue, 25 Sep 2007 07:22:58 +0000 (07:22 +0000)]
typo
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2024
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phk [Tue, 25 Sep 2007 07:21:40 +0000 (07:21 +0000)]
Polish
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2023
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phk [Tue, 25 Sep 2007 07:19:54 +0000 (07:19 +0000)]
Use pdiff() to guard against negative point differences
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2022
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phk [Tue, 25 Sep 2007 07:12:18 +0000 (07:12 +0000)]
Two consts is one const too many.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2021
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phk [Tue, 25 Sep 2007 07:11:33 +0000 (07:11 +0000)]
More const polishing
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2020
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phk [Tue, 25 Sep 2007 07:08:07 +0000 (07:08 +0000)]
Make id type "int"
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2019
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phk [Tue, 25 Sep 2007 07:06:18 +0000 (07:06 +0000)]
Const'ifcation
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2018
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phk [Tue, 25 Sep 2007 06:56:23 +0000 (06:56 +0000)]
Polish shmlog:
The id argument is a file descriptor, so it should be typed "int".
We must have a fmt argument.
Use pdiff.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2017
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phk [Tue, 25 Sep 2007 06:51:04 +0000 (06:51 +0000)]
When we take the difference between two pointers, the result is technically
signed. pdiff() makes sure we never get a negative value.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2016
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phk [Tue, 25 Sep 2007 06:46:57 +0000 (06:46 +0000)]
Use the correct shmlog function.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2015
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phk [Tue, 25 Sep 2007 06:44:27 +0000 (06:44 +0000)]
The first of a long sequence of committs, inspired by cranking up FlexeLints
nitpicking to new heights:
Make sure VRT_int_string() has enough room and assert that this was the case.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2014
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cecilihf [Mon, 24 Sep 2007 13:21:27 +0000 (13:21 +0000)]
Re-enable the code causing bug #161 (which is now fixed)
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2013
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cecilihf [Mon, 24 Sep 2007 13:18:04 +0000 (13:18 +0000)]
Fixes bug #161.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2012
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phk [Mon, 24 Sep 2007 13:00:33 +0000 (13:00 +0000)]
Actually, we cannot touch objects on deathrow, so just ignore
any object with heap_idx == 0.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2011
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phk [Mon, 24 Sep 2007 12:58:14 +0000 (12:58 +0000)]
Remove an assert which isn't valid: we could try to LRU_Touch an
object on deathrow.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2010
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phk [Mon, 24 Sep 2007 12:27:54 +0000 (12:27 +0000)]
Make the cli_timeout a parameter. The master will wait this long
for the client to reply on the internal CLI pipe.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2009
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cecilihf [Mon, 24 Sep 2007 12:06:20 +0000 (12:06 +0000)]
Update random and round-robin backends to use the new convenience functions.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2008
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phk [Mon, 24 Sep 2007 11:25:15 +0000 (11:25 +0000)]
Add code to VCC to output an identifier for each simple backend which
varnishd can use to decide if a backend state can be shared between
multiple VCL programs.
Originally the idea was to calculate a strong hash over the tokens
which define the backend.
Considering the relatively short lengths of backend declarations
and the infrequency of comparisons, we have opted for an extremely
weak hash instead: We simply output the space separted tokens as
a string.
The net change in code for simple backends is marginal, but for
complex backends this will be a lot simpler to implement.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2007
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phk [Mon, 24 Sep 2007 08:23:34 +0000 (08:23 +0000)]
Our first cut at a LRU processing contained a three way race and can
cause Really Weird Problems if you really provoke it.
+++ Redo from start +++
LRU processing is only relevant for objects which are in the cache and
on the EXP binary heap so we merge the LRU functionality with the EXP
code in order to share locks and object reference counts.
Another thing we overlooked in the first implementation is that the VCL
callout for LRU should be able to examine the client information for
the session which tries to push stuff out, so that QoS/DoS issues can be
considered:
sub vcl_dicard {
if (client.bandwidth > 10 mb/s) {
keep;
}
}
(which sort of indicates that "error" should be a legal action as well)
To enable this, pass the session into the stevedore when we try to
allocate space and temporarily substitute the target object for its
own object while we call vcl_discard().
The outcome of an attempt to make space can take three values, did,
didn't and couldn't. In the latter case there is no point in trying
again and again, in particular if the cause is incurable, such as
the requested size being larger than the storage. We still need to
handle failure to allocate storage for that case rather than core dump.
When looking for targets to nuke, we only consider objects on the
binheap which has reference count of 1, objects with higher reference
counts would not free space.
We take prospective targets off the binheap, but retain their
refcount, and tag them with a magic marker while we ponder their
destiny.
It is quite possible that another session could pick the object up
via the cache while we do so, and therefore attempts to update the
ttl or shift them in the lru chain must ignore objects which has
the magic marker. If the object is kept, the updated ttl will
automatically take effect when we reinsert it in the binheap.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2006
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phk [Mon, 24 Sep 2007 08:01:07 +0000 (08:01 +0000)]
Add a couple of statistics counters for LRU
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2005
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phk [Mon, 24 Sep 2007 07:37:40 +0000 (07:37 +0000)]
Fix a NULL pointer dereference which cannot currently happen.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2004
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des [Sun, 23 Sep 2007 14:19:42 +0000 (14:19 +0000)]
Reverse the logic in r1997 from !is_get to is_head.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@1998
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phk [Sun, 23 Sep 2007 13:46:43 +0000 (13:46 +0000)]
Fix another cornercase that fell out as part of the pass->fetch rewrite:
If we pass a HEAD request, we should not rewrite it to GET and not expect
a body either.
git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@1997
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projects / varnish / log