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This adds a new config parameter "config backend" that can have
values "file" (default) and "registry". When lp_load() encounters
a "config backend = registry", then all config read up to that
point is discarded and globals are read from registry.
This is done in suche a way that as with "config file",
there is no way back to non-registry config during the
lifetime of a process: The file_list_changed mechanism
does not look at files anymore once config backend is
set to registry. This is modelled after the behaviour
of the "config file" option.
Note that only the global section is read by lp_load().
The shares are handled by the registry shares mechanism,
thus allowing for a smaller memory footprint since
share definitions are read on demand.
This new parameter is intended as a substitute of the
previously installed special semantics of "include = registry"
which allows for messed up mixed configurations.
This parameter (which has not yet been released) will
vanish next.
Michael
This is a more general API that caches data with a LRU scheme. See
include/cache.h. No comments yet, I'm still working on it. But Jeremy has given
me a hint in one of his checkins that he would like to make use of this now.
The idea is that we get rid of all our silly little caches and merge them all
into one cache that we can then very easily trim, for example even with a
smbcontrol message if someone decides memory is tight. The main user is the
stat cache, this patch also converts the getwd cache. More caches to come.
The point is doing the following associations:
- non discardable state data (all TDB files that may need to be backed
up) go to statedir
- shared data (codepage stuff) go to codepagedir
The patch *does not change* the default location for these
directories. So, there is no behaviour change when applying it.
The main change is for samba developers who have to think when dealing
with files that previously pertained to libdir whether they:
- go in statedir
- go in codepagedir
- stay in libdir
Hi!
Attached find a patch that I've wanted to check in for ages.
The whole area probably needs a major rewrite, but this is a
minimal patch that on a 32-bit box saves 1.5k per smbd per
defined share, twice as much on a 64-bit box.
Volker
From ebb80e664ecc49eb597a45cb57e1067fbae49e62 Mon Sep 17 00:00:00 2001
From: Volker Lendecke <vl@sernet.de>
Date: Wed, 31 Oct 2007 15:04:34 +0100
Subject: [PATCH] Change global->copymap from bool* to a bitmap
We right now have 401 parameters, so with bool being represented as a 64-bit
integer this saves about 3k of memory per smbd per share that is defined in
smb.conf.
to zero). If non-zero, writeX calls greater than this
value will be left in the socket buffer for later handling
with recvfile (or userspace equivalent). Definition of
recvfile for your system is left as an exercise for
the reader (I'm working on getting splice working :-).
Jeremy.
Control this by a new boolean smb.conf option "debug class" which is
by default set to "no" to keep the default debug header unchanged.
Michael
Note: You need to make clean for this patch.
This adds the two functions talloc_stackframe() and talloc_tos().
* When a new talloc stackframe is allocated with talloc_stackframe(), then
* the TALLOC_CTX returned with talloc_tos() is reset to that new
* frame. Whenever that stack frame is TALLOC_FREE()'ed, then the reverse
* happens: The previous talloc_tos() is restored.
*
* This API is designed to be robust in the sense that if someone forgets to
* TALLOC_FREE() a stackframe, then the next outer one correctly cleans up and
* resets the talloc_tos().
The original motivation for this patch was to get rid of the
sid_string_static & friends buffers. Explicitly passing talloc context
everywhere clutters code too much for my taste, so an implicit
talloc_tos() is introduced here. Many of these static buffers are
replaced by a single static pointer.
The intended use would thus be that low-level functions can rather
freely push stuff to talloc_tos, the upper layers clean up by freeing
the stackframe. The more of these stackframes are used and correctly
freed the more exact the memory cleanup happens.
This patch removes the main_loop_talloc_ctx, tmp_talloc_ctx and
lp_talloc_ctx (did I forget any?)
So, never do a
tmp_ctx = talloc_init("foo");
anymore, instead, use
tmp_ctx = talloc_stackframe()
:-)
Volker
contains a correct representation of a boolean value (in the
understanding of loadparm.c).
Make set_boolean() catch passing NULL for the boolean target.
Michael
