replace llinfos, lldebugs, etc with new LL_INFOS(), LL_DEBUGS(), etc.

moved thread local storage to its own cpp file

more fixes for unit test crashes
added llcommon initialization/teardown for unit tests
that indirectly trigger lltrace
changed access of atomic refcount to use preincrement/decrement
operators to reflect desired semantics
always call apr_initialize in LLCommon::initClass, even
if already initialized...apr does internal reference counting
to keep things straight

fix for unit test failures...cleanup apr without destroying
pools, allowing LLProxy to clean itself up as a singleton (and
avoiding spurious dependencies associated with manually destorying
singletons that rely on apr pools)

made fast timer stack thread local
added LLThreadLocalSingleton
made LLThreadLocalPointer obey pointer rules for const
added LLThreadLocalSingletonPointer for fast thread local pointers

fixed crash on exit by making LLInstanceTracker iterators use atomic iterator
nesting count for thread safety

improvements on lifetime of lltrace core data structures
tweaks to thread local pointer handling so that static constructors/destructors
can safely call functions that use lltrace

renamed LLTrace::ThreadTrace to LLTrace::ThreadRecorder
renamed LLTrace::Sampler to LLTrace::Recording

cleaned up API
samplers are now value types with copy-on-write buffers under the hood
removed coupling with LLThread

fixed various issues related to unit tests and LLThreadLocalPtr initialization and teardown

moved LLThreadLocalPtr to llapr
fixed various startup race conditions for LLThreadLocalPtr

accessed through the static LLThread::tldata().
Currently this object contains two (public) thread-local
objects: a LLAPRRootPool and a LLVolatileAPRPool.

The first is the general memory pool used by this thread
(and this thread alone), while the second is intended
for short lived memory allocations (needed for APR).
The advantages of not mixing those two is that the latter
is used most frequently, and as a result of it's nature
can be destroyed and reconstructed on a "regular" basis.

This patch adds LLAPRPool (completely replacing the old one),
which is a wrapper around apr_pool_t* and has complete
thread-safity checking.

Whenever an apr call requires memory for some resource,
a memory pool in the form of an LLAPRPool object can
be created with the same life-time as this resource;
assuring clean up of the memory no sooner, but also
not much later than the life-time of the resource
that needs the memory.

Many, many function calls and constructors had the
pool parameter simply removed (it is no longer the
concern of the developer, if you don't write code
that actually does an libapr call then you are no
longer bothered with memory pools at all).

However, I kept the notion of short-lived and
long-lived allocations alive (see my remark in
the jira here: https://jira.secondlife.com/browse/STORM-864?focusedCommentId=235356&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-235356
which requires that the LLAPRFile API needs
to allow the user to specify how long they
think a file will stay open. By choosing
'short_lived' as default for the constructor
that immediately opens a file, the number of
instances where this needs to be specified is
drastically reduced however (obviously, any
automatic LLAPRFile is short lived).

***

Addressed Boroondas remarks in https://codereview.secondlife.com/r/99/
regarding (doxygen) comments. This patch effectively only changes comments.

Includes some 'merge' stuff that ended up in llvocache.cpp
(while starting as a bug fix, now only resulting in a cleanup).

***

Added comment 'The use of apr_pool_t is OK here'.

Added this comment on every line where apr_pool_t
is correctly being used.

This should make it easier to spot (future) errors
where someone started to use apr_pool_t; you can
just grep all sources for 'apr_pool_t' and immediately
see where it's being used while LLAPRPool should
have been used.

Note that merging this patch is very easy:
If there are no other uses of apr_pool_t in the code
(one grep) and it compiles, then it will work.

***

Second Merge (needed to remove 'delete mCreationMutex'
from LLImageDecodeThread::~LLImageDecodeThread).

***

Added back #include <apr_pools.h>.

Apparently that is needed on libapr version 1.2.8.,
the version used by Linden Lab, for calls to
apr_queue_*. This is a bug in libapr (we also
include <apr_queue.h>, that is fixed in (at least) 1.3.7.

Note that 1.2.8 is VERY old. Even 1.3.x is old.

***

License fixes (GPL -> LGPL). And typo in comments.
Addresses merov's comments on the review board.

***

Added Merov's compile fixes for windows.

In addition to its usual apr_sterror() function, APR defines a special
function specifically for errors relating to the apr_dso_*() functions.
Introduce ll_apr_warn_status() and ll_apr_assert_status() overloads accepting
apr_dso_handle_t* to call apr_dso_error() as well as apr_strerror() and log
its output. Use new ll_apr_warn_status() in LLAppViewer::loadEventHostModule()
for apr_dso_load() and apr_dso_sym() calls. Instead of shorthand
ll_apr_assert_status(), use with llassert_always() so check is still performed
even in Release build.
Add more lleventhost-related debugging output, e.g. full pathname of the DLL.
On Mac and Linux, call 'file' command to report nature of the DLL too.

EXT-8447: FIXED: crash at LLTextureCache::writeEntryToHeaderImmediately(int,LLTextureCache::Entry &,bool) [secondlife-bin lltexturecache.cpp]

EXT-8447: FIXED: crash at LLTextureCache::writeEntryToHeaderImmediately(int,LLTextureCache::Entry &,bool) [secondlife-bin lltexturecache.cpp]

Bao agreed with my initial version after all.

(transplanted from 061b8b55838634425455ebc4ac046462dfc0e5f1)

from the end'.
Also, more comments.
Also, try to avoid a seek when offset==0 in read.
To be reviewed by Bao.
(transplanted from 60eb013221a83ff76054ab7dcb1d07c108f51a9d)

svn+ssh://svn.lindenlab.com/svn/linden/branches/viewer/viewer-1.23.onetwo-merge-1

QAR-1531 viewer 1.23rc1+1.23rc2 merge to trunk

Merge of QAR-1267 to trunk.  This was a combo merge of QAR-1175 (maint-render-9) and QAR-1236 (dll-msvcrt-2)

svn merge -r 109838:112264 svn+ssh://svn.lindenlab.com/svn/linden/branches/maint-render/maint-render-9-merge-r109833

Result of svn merge -r107256:107258 svn+ssh://svn/svn/user/phoenix/license_2009_merge into trunk. QAR-1165

merge viewer_1-21 94770-96059 -> release

dataserver-is-deprecated

Passed QA as part of QAR-491.

HAVOK4 IN TEH HOUSE!!11!!ONE!!
If it is broken blame Joel for not fixing the loginassetdatabaseinventorygroupIM server instead of working on this.

QAR-448

Changes from 1.19.0.2 and 1.19.0.3

DEV-9226 Some Dazzle? icons have sneaked into the release branch
DEV-9226 - lock icon not appearing in properties window for no-modify inventory items
DEV-8771 Preferences > Web has truncated text in the Address: section, ported and tested minor xml change
DEV-9736 commit 1.19.0 second set of translated xui strings
DEV-9825 Make the region info message a passive notification
DEV-7714 - Korean viewer crashes on startup.
DEV-9759 - Stand up button etc dissapear offscreen after using mouselook
DEV-9938 client-readme-voice.txt missing from open source distribution
DEV-9436 Changed default SL window size to 1000x700, to allow buttons in UI to have proper labels (Communicate) and search to fit onscreen.
DEV-10031    	Clicking on another users classifieds ad then closing asks you to save changes
DEV-10066    	Checking to select a role does not enable the apply button
DEV-8809    	stray 'Done" on the Profile Web tab
DEV-8515 Debug settings overrides do not work for booleans.  svn merge -r77376:77377 sl-parcelmedia-3.  OK by cg.
DEV-10083: Preferences window docks at an offscreen position and cannot be moved vertically
DEV-10186 - LLIMPanel kills the framerate for group ims.
DEV-10108 Viewer freeze and delay in opening map
DEV-10115 Visible flashing of prim highlight when editing
DEV-10112 	Parcel audio play setting is not remembered when crossing over a parcel with no media
DEV-10109 	Alt and left/right arrow keys dont move you between tabs
DEV-10093 	Login Page > SL Release link overlaps Quit when viewer resized
DEV-10048 	Redocking the Contact list causes the communicate ui to get ugly
DEV-8131  	 Deutsch "System Default" is translated as "System Error" in language preferences
DEV-10209 - reverted floater_test.xml to empty floater.
DEV-10255 - Clicking on gestures button moves open windows
DEV-10046 	Pressing escape doesnt cause the chat history or inventory windows to lose focus
DEV-10399 -- Update required version of QuickTime library to 7.4.1 for 1.19.0 Viewer
DEV-10410 - Toggling voice causes layout problems in toolbar
DEV-8562 - Viewer crash just after login
DEV-10147 - "LLXmlTree parse failed" with settings_releasecandidate.xml
DEV-9874 - Land forsale icon in menubar overlaps pushobject restriction icon
DEV-9701 - Upload Animation window: Button missing in Stopped window state
DEV-10355 - Client crashes when viewing the proposals tab in group information
DEV-10521 My Landmarks dropdown list adds a repetition to EOF every time it's opened
DEV-10496 Groups>Proposals>Past Vote text gets chomped
DEV-10499 Defaulted buttons in floater dialogs remain highlighted when not in focus
DEV-5611 - Crash reporter appears in the background on mac (Changed launch to use open instead of direct binary call)
DEV-10704 - Crash reporter not initializing boolean, causing false exec_froze reporting (Added initilizer to constructor)