This is a follow-up to bug 1409249. There are a lot of places where our
factory singleton constructors either don't correctly handle their returned
references being released by the component manager, or do handle it, but in
ways that are not obvious.
This patch handles a few places where we can sometimes wind up with dangling
singleton pointers, adds some explanatory comments and sanity check
assertions, and replaces some uses of manual refcounting with StaticRefPtr and
ClearOnShutdown.
There are still some places where we may wind up with odd behavior if the
first QI for a getService call fails. In those cases, we wind up destroying
the first instance of a service that we create, and re-creating a new one
later.
MozReview-Commit-ID: ANYndvd7aZx
--HG--
extra : rebase_source : acfb0611a028fef6b9387eb5d1d9e285782fbc7c
Remove the headers included for "backwards compatibility" and just include them
where required.
--HG--
extra : source : e2beba7e6875120ebbbcadf24bcbcb5b86411a94
extra : amend_source : 11f07a27431cd468511f0bd45afe36150c6e342c
Remove the headers included for "backwards compatibility" and just include them
where required.
--HG--
extra : rebase_source : 03e703a81ed4b80f4f116ff36d8787464ce5acba
This removes an unnecessary level of indirection by replacing all
nsStringGlue.h instances with just nsString.h.
--HG--
extra : rebase_source : 340989240af4018f3ebfd92826ae11b0cb46d019
Right now, NS_GENERIC_FACTORY_SINGLETON_CONSTRUCTOR expects singleton
constructors to return already-addrefed raw pointers, and while it accepts
constructors that return already_AddRefed, most existing don't do so.
Meanwhile, the convention elsewhere is that a raw pointer return value is
owned by the callee, and that the caller needs to addref it if it wants to
keep its own reference to it.
The difference in convention makes it easy to leak (I've definitely caused
more than one shutdown leak this way), so it would be better if we required
the singleton getters to return an explicit already_AddRefed, which would
behave the same for all callers.
This also cleans up several singleton constructors that left a dangling
pointer to their singletons when their initialization methods failed, when
they released their references without clearing their global raw pointers.
MozReview-Commit-ID: 9peyG4pRYcr
--HG--
extra : rebase_source : 2f5bd89c17cb554541be38444672a827c1392f3f
This lets us replace moz_xstrdup() of string literals with AssignLiteral(),
among other improvements.
--HG--
extra : rebase_source : 9994d8ccb4f196cf63564b0dac2ae6c4370defb4
NS_ProxyRelease will immediately release the provided reference if already on
the right thread unless aAlwaysRelease=true (the default is false). We need to
set it to be true to avoid Close() and its potential to, out of desperation
when faced with misuse, spin a nested event loop.
--HG--
extra : rebase_source : 91c70a6fa081fdf20a8dfabf5d69bccbef1ba33c
The NS_LITERAL_CSTRING macro creates a temporary nsLiteralCString to encapsulate the string literal and its length, but AssignLiteral() can determine the string literal's length at compile-time without nsLiteralCString.
MozReview-Commit-ID: B5Y8KyExPQ8
--HG--
extra : rebase_source : e27b266c145daa5acd887e998c6d5b408101e1db
extra : source : 33f49977a33cbdb1c7127871b940eefccc018f65
This is for the trunk/nightly landing only, and approval was explicitly
requested from #sheriffs to land without tests as a preliminary stop-gap.
Tests and a proper fix will land as part of bug 1389660, but that will be a few
days.
--HG--
extra : rebase_source : 5849f2f37d735387e13ac0486f1fae7906725111
extra : source : 908a4bb55a039985473e1565d88abebfe024c44c
The observer references were the only thing guranteed to keep the Service
alive, leading to potential use-after-free during the iteration loop to
make sure all the connections were closed. (Ironically, if they were
fully closed and their instances destroyed, that's when bad things would
happen.)
--HG--
extra : rebase_source : 6c8d6f9e0b75751b10166d7e2c63d5a3cb27d28e
This patch parameterizes nsAuto[C]String, renames them as nsAuto[C]StringN, and
redefines nsAuto[C]String as typedefs for nsAuto[C]StringN<64>.
(The alternative would be to templatize nsAuto[C]String and use a default
parameter, but that would require writing "nsAuto[C]String<>" everywhere.)
This patch makes the following changes to the macros.
- Removes PROFILER_LABEL_FUNC. It's only suitable for use in functions outside
classes, due to PROFILER_FUNCTION_NAME not getting class names, and it was
mostly misused.
- Removes PROFILER_FUNCTION_NAME. It's no longer used, and __func__ is
universally available now anyway.
- Combines the first two string literal arguments of PROFILER_LABEL and
PROFILER_LABEL_DYNAMIC into a single argument. There was no good reason for
them to be separate, and it forced a '::' in the label, which isn't always
appropriate. Also, the meaning of the "name_space" argument was interpreted
in an interesting variety of ways.
- Adds an "AUTO_" prefix to PROFILER_LABEL and PROFILER_LABEL_DYNAMIC, to make
it clearer they construct RAII objects rather than just being function calls.
(I myself have screwed up the scoping because of this in the past.)
- Fills in the 'js::ProfileEntry::Category::' qualifier within the macro, so
the caller doesn't need to. This makes a *lot* more of the uses fit onto a
single line.
The patch also makes the following changes to the macro uses (beyond those
required by the changes described above).
- Fixes a bunch of labels that had gotten out of sync with the name of the
class and/or function that encloses them.
- Removes a useless PROFILER_LABEL use within a trivial scope in
EventStateManager::DispatchMouseOrPointerEvent(). It clearly wasn't serving
any useful purpose. It also serves as extra evidence that the AUTO_ prefix is
a good idea.
- Tweaks DecodePool::SyncRunIf{Preferred,Possible} so that the labelling is
done within them, instead of at their callsites, because that's a more
standard way of doing things.
--HG--
extra : rebase_source : 318d1bc6fc1425a94aacbf489dd46e4f83211de4
Kris Maglione
Florian Quèze
Kit Cambridge
Eric Rahm
Csoregi Natalia
Mark Banner
Gabriele Svelto
shindli
Andrew Sutherland
Andrew McCreight
Nicholas Nethercote
Bob Owen
Sebastian Hengst
Kai Engert
Chris Peterson
Ryan VanderMeulen
Marco Bonardo
Jan de Mooij
Phil Ringnalda
Masatoshi Kimura
Nathan Froyd
Andrea Marchesini
Olli Pettay
Sylvestre Ledru
Bill McCloskey
Carsten "Tomcat" Book