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For some reason there wasn't an entry in indra/llcommon/CMakeLists.txt to run
the tests in indra/llcommon/tests/lleventfilter_test.cpp. It seems likely that
at some point it existed, since all previous tests built and ran successfully.
In any case, (re-)add lleventfilter_test.cpp to the set of llcommon tests.
Also alphabetize them to make it easier to find a particular test invocation.
Also add new tests for LLEventThrottle.
To support this, refactor the concrete LLEventThrottle class into
LLEventThrottleBase containing all the tricky logic, with pure virtual
methods for access to LLTimer and LLEventTimeout, and an LLEventThrottle
subclass containing the LLTimer and LLEventTimeout instances and corresponding
implementations of the new pure virtual methods.
That permits us to introduce TestEventThrottle, an alternate subclass with
dummy implementations of the methods related to LLTimer and LLEventTimeout. In
particular, we can explicitly advance simulated realtime to simulate
particular LLTimer and LLEventTimeout behaviors.
Finally, introduce Concat, a test LLEventPump listener class whose function is
to concatenate received string event data into a composite string so we can
readily test for particular sequences of events.
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here: https://bitbucket.org/rider_linden/doduo-viewer/commits/4f39500cb46e879dbb732e6547cc66f3ba39959e?at=default
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These are mostly things that were in fact erroneous, but accepted by older
compilers.
This changeset has not yet been built with Visual Studio 2013 or Linux gcc,
even with -std=c++11.
This changeset has not been built *without* -std=c++11. It should be used in
conjunction with a corresponding change to LL_BUILD_DARWIN_BASE_SWITCHES in
viewer-build-variables/variables.
This is a work in progress. We do not assert that this changeset completes the
work needed to turn on -std=c++11, even on the Mac.
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A shocking number of LLSingleton subclasses had public constructors -- and in
several instances, were being explicitly instantiated independently of the
LLSingleton machinery. This breaks the new LLSingleton dependency-tracking
machinery. It seems only fair that if you say you want an LLSingleton, there
should only be ONE INSTANCE!
Introduce LLSINGLETON() and LLSINGLETON_EMPTY_CTOR() macros. These handle the
friend class LLSingleton<whatevah>;
and explicitly declare a private nullary constructor.
To try to enforce the LLSINGLETON() convention, introduce a new pure virtual
LLSingleton method you_must_use_LLSINGLETON_macro() which is, as you might
suspect, defined by the macro. If you declare an LLSingleton subclass without
using LLSINGLETON() or LLSINGLETON_EMPTY_CTOR() in the class body, you can't
instantiate the subclass for lack of a you_must_use_LLSINGLETON_macro()
implementation -- which will hopefully remind the coder.
Trawl through ALL LLSingleton subclass definitions, sprinkling in
LLSINGLETON() or LLSINGLETON_EMPTY_CTOR() as appropriate. Remove all explicit
constructor declarations, public or private, along with relevant 'friend class
LLSingleton<myself>' declarations. Where destructors are declared, move them
into private section as well. Where the constructor was inline but nontrivial,
move out of class body.
Fix several LLSingleton abuses revealed by making ctors/dtors private:
LLGlobalEconomy was both an LLSingleton and the base class for
LLRegionEconomy, a non-LLSingleton. (Therefore every LLRegionEconomy instance
contained another instance of the LLGlobalEconomy "singleton.") Extract
LLBaseEconomy; LLGlobalEconomy is now a trivial subclass of that.
LLRegionEconomy, as you might suspect, now derives from LLBaseEconomy.
LLToolGrab, an LLSingleton, was also explicitly instantiated by
LLToolCompGun's constructor. Extract LLToolGrabBase, explicitly instantiated,
with trivial subclass LLToolGrab, the LLSingleton instance.
(WARNING: LLToolGrabBase methods have an unnerving tendency to go after
LLToolGrab::getInstance(). I DO NOT KNOW what should be the relationship
between the instance in LLToolCompGun and the LLToolGrab singleton instance.)
LLGridManager declared a variant constructor accepting (const std::string&),
with the comment:
// initialize with an explicity grid file for testing.
As there is no evidence of this being called from anywhere, delete it.
LLChicletBar's constructor accepted an optional (const LLSD&). As the LLSD
parameter wasn't used, and as there is no evidence of it being passed from
anywhere, delete the parameter.
LLViewerWindow::shutdownViews() was checking LLNavigationBar::
instanceExists(), then deleting its getInstance() pointer -- leaving a
dangling LLSingleton instance pointer, a land mine if any subsequent code
should attempt to reference it. Use deleteSingleton() instead.
~LLAppViewer() was calling LLViewerEventRecorder::instance() and then
explicitly calling ~LLViewerEventRecorder() on that instance -- leaving the
LLSingleton instance pointer pointing to an allocated-but-destroyed instance.
Use deleteSingleton() instead.
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This particular test relied on there being exactly one instance of the string
"indra" in the source file's __FILE__ path -- which is usually true, but not
if the developer clones the viewer source repo under a parent directory whose
path itself contains "indra". Fix to handle any number of occurrences.
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A level of preprocessor indirection lets us later change the implementation if
desired.
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llexception_test.cpp is an unusual test source in that it need not be verified
on every build, so its invocation in indra/llcommon/CMakeLists.txt is
commented out with that remark. Its purpose is to help a developer decide what
base class(es) to use for LLException, how to throw and how to catch.
Our current conclusions are written up as comments in llexception_test.cpp.
Added CRASH_ON_UNHANDLED_EXCEPTION() and LOG_UNHANDLED_EXCEPTION() macros to
llexception.h -- macros to log __FILE__, __LINE__ and __PRETTY_FUNCTION__ of
the catch site. These invoke functions in llexception.cpp so we don't need to
#include llerror.h for every possible catch site.
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This also introduces LLContinueError for exceptions which should interrupt
some part of viewer processing (e.g. the current coroutine) but should attempt
to let the viewer session proceed.
Derive all existing viewer exception classes from LLException rather than from
std::runtime_error or std::logic_error.
Use BOOST_THROW_EXCEPTION() rather than plain 'throw' to enrich the thrown
exception with source file, line number and containing function.
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The original implementation of set_consuming() involved a bool* pointing to a
local bool in VoidListener::operator()()'s stack frame. postAndSuspend() would
set that bool (through the pointer) as soon as it returned from suspension.
The trouble with that is that LLEventMailDrop potentially calls its new
listener (fulfilling the future) immediately in the listen_impl() override --
in other words, way up at the top of postAndSuspend(), well before the code
that sets the relevant bool.
Instead, make the adapter formerly known as VoidListener bind the coroutine's
get_consuming() value at adapter construction time (before listening on the
LLEventPump), so that its operator()() has the coroutine's correct
get_consuming() value to return. Eliminating the bool* makes the code both
simpler AND more correct!
This change makes that adapter very specific to coroutine usage. Rename it
FutureListener and migrate it from lleventcoros.h into the .cpp file. Nobody
else was using it anyway.
Make corresponding changes to postAndSuspend2() and its WaitForEventOnHelper
class -- whose name no longer corresponds to the function as it used to.
Rename that one FutureListener2. The new FutureListener functionality, common
to both these adapters, makes it useful to derive FutureListener2 from
FutureListener.
Introduce llmake(), a generic function to deduce template type arguments from
function parameter types. This allows us to remove the voidlistener() and
wfeoh() helper functions.
Hiding VoidListener broke one of the lleventcoro_test.cpp tests. But that test
was sort of a lame recap of an earlier implementation of postAndSuspend(),
based on LLEventPump events. Recast that test to illustrate how to use a
coroutine future to suspend a coroutine for something other than an LLEventPump.
But that rubbed my nose in the fact that we MUST wrap future's context
switching with proper management of the current coroutine. Introduce
LLCoros::Future<T>, which wraps boost::dcoroutines::future<T>.
Use LLCoros::Future<T> in postAndSuspend() and postAndSuspend2().
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set_consuming(true) tells each postAndSuspend() call to consume the event for
which it is suspending.
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To date, the coroutine helper functions in lleventcoro.h have been in the
global namespace. Migrate them into llcoro namespace, and fix references.
Specifically, LLVoidListener => llcoro::VoidListener, and voidlistener(),
postAndWait(), both waitForEventOn(), postAndWait2(), errorException() and
errorLog() have been moved into llcoro.
Also migrate new LLCoros::get_self() and Suspending to llcoro:: namespace.
While at it, I realized that -- having converted several lleventcoro.h
functions from templates (for arbitrary 'self' parameter type) to ordinary
functions, having moved them from lleventcoro.h to lleventcoro.cpp, we can now
migrate their helpers from lleventcoro.h to lleventcoro.cpp as well. This
eliminates the need for the LLEventDetail namespace; the relevant helpers are
now in an anonymous namespace in the .cpp file: listenerNameForCoro(),
storeToLLSDPath(), WaitForEventOnHelper and wfeoh().
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