This is similar like the previous patch, but for the 8-bit string variants.
Also, it changes assignment to Adopt() in GetCString() and GetDefaultCString()
to avoid an extra copy.
--HG--
extra : rebase_source : eba805c3a7b809d5ccd6e853b1c9010db9477667
It's just a complex wrapper for free(), or equivalent function. (In practice,
all the uses end up in free().)
--HG--
extra : rebase_source : 247ea8458aa57319bd1c8366115a9b4f39ed5a33
The test helper_touch_action_regions.html uses nsDOMWindowUtils to synthesize native input events and creates some runnables to trigger the test. It expects the runnables which synthesize native input events are processed first, then the runnables to continue the test, and finally the input events are forwarded from chrome process to content process. Enabling event prioritization may change the execution order.
Wraps those runnables to synthesize native input events as priority=input and dispatches those runnables to continue the test with priority=input to make sure the execution order is as expected.
MozReview-Commit-ID: 8hkaB1FRW9T
As well as the straightforward things, this lets us remove ReadSysFile and
WriteSysFile, which in turn lets us remove TestFileUtils.cpp.
--HG--
extra : rebase_source : fc90c05352e654ffc41009d8504a9c54f394fc3f
For some reason, I continuously ran into windows x64 specific failures when
trying to read this heap allocated data while the main thread was paused. I
don't know specifically how this happened, but I am able to avoid it by instead
directly allocating the buffer in a `mozilla::Array` in static storage, and
copying that data instead.
MozReview-Commit-ID: 473d6IpHlc4
Unfortunately during shutdown we can sometimes leak the runnable passed into
SystemGroup::Dispatch. It is leaked instead of being freed off main thread
because we sometimes are passing data which can only be freed on the main thread
safely to the main thread, and running the destructor on the wrong thread could
be really bad.
This is a really really gross workaround for that issue which helps to avoid the
XPCOM leak checker failures which were appearing on try.
MozReview-Commit-ID: GTfdxKnsTae
This involved a change to BackgroundHangMonitor, as it initialized sDisabled
incorrectly to false, instead of true, We need sDisabled initialized to true, as
we cannot assume that it is enabled until BackgroundHangMonitor::Startup() is
called.
MozReview-Commit-ID: 94slLTkNk3C
Currently LUL is a member of CorePS, meaning that it is guarded by the PSMutex.
This mutex is grabbed by the main thread at random points during the execution
of the program. This is unfortunate, as initializing LUL can take a long
time (>1s on my local machine), and we definitely don't want to be blocking the
main thread waiting for it.
In addition, in the BHR case, we used to be grabbing LUL when we got our first
hang, while both the PSMutex and the BHR monitor were being held. This meant
that the main thread could make no progress during LUL initializaion, as the BHR
monitor is grabbed by the main thread on every spin of the event loop.
This patch moves that initialization to be behind a completely separate lock,
and makes BHR initialize it on the background thread before acquiring the BHR
lock, meaning that no locks other than the one guarding LUL should be held
during its initialization.
MozReview-Commit-ID: GwNYQaEAqJ1
This involved a change to BackgroundHangMonitor, as it initialized sDisabled
incorrectly to false, instead of true, We need sDisabled initialized to true, as
we cannot assume that it is enabled until BackgroundHangMonitor::Startup() is
called.
MozReview-Commit-ID: 94slLTkNk3C
Currently LUL is a member of CorePS, meaning that it is guarded by the PSMutex.
This mutex is grabbed by the main thread at random points during the execution
of the program. This is unfortunate, as initializing LUL can take a long
time (>1s on my local machine), and we definitely don't want to be blocking the
main thread waiting for it.
In addition, in the BHR case, we used to be grabbing LUL when we got our first
hang, while both the PSMutex and the BHR monitor were being held. This meant
that the main thread could make no progress during LUL initializaion, as the BHR
monitor is grabbed by the main thread on every spin of the event loop.
This patch moves that initialization to be behind a completely separate lock,
and makes BHR initialize it on the background thread before acquiring the BHR
lock, meaning that no locks other than the one guarding LUL should be held
during its initialization.
MozReview-Commit-ID: GwNYQaEAqJ1
It's silly to use prmem.h within Firefox code given that in our configuration
its functions are just wrappers for malloc() et al. (Indeed, in some places we
mix PR_Malloc() with free(), or malloc() with PR_Free().)
This patch removes all uses, except for the places where we need to use
PR_Free() to free something allocated by another NSPR function; in those cases
I've added a comment explaining which function did the allocation.
--HG--
extra : rebase_source : 0f781bca68b5bf3c4c191e09e277dfc8becffa09
Delegating to mozilla::Runnable caused us to return the wrong value once
SchedulerGroup started passing a non-empty name to the Runnable constructor.
MozReview-Commit-ID: 2zMlpiMnHwv
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
This patch gives some structure and order to the profiler's API.
It also renames AutoProfilerRegister as AutoProfilerRegisterThread, to match
profiler_register_thread().
All the instances are converted as follows.
- nsSubstring --> nsAString
- nsCSubstring --> nsACString
--HG--
extra : rebase_source : cfd2238c52e3cb4d13e3bd5ddb80ba6584ab6d91
A number of places in JS need to drain the current thread's event queue,
which cannot be done with nsIThreadManager::spinEventLoopUntil, since we
need to not wait for an incoming event when attempting to process one.
Delegating to mozilla::Runnable caused us to return the wrong value once
SchedulerGroup started passing a non-empty name to the Runnable constructor.
MozReview-Commit-ID: 2zMlpiMnHwv
Check if the receiver has SetDeadline and use a specialization that
doesn't use it if it isn't present. This makes it possible to call:
NewIdleRunnable(obj, Obj::Method)
where Obj doesn't need to implement SetDeadline. This makes it easier
to avoid unnecessary wrappers.
--HG--
extra : rebase_source : 83c30b0590475d65b072b41c466321330af07dc7
This was causing a crash on nightly. The browser would try to collect only a
native stack, and then attempt to dereference the null pointer for the
pseudostack. I think this didn't happen on infra as it only occurs when the user
has hung a sufficient number of times.
MozReview-Commit-ID: 6RSW2llKBjT
This patch uses the profiler_suspend_sample_thread method which was added in
part 1.
With this patch, we no longer manually run code to pause the target thread,
instead using the profiler's provided code to do so. In addition, we no longer
manually walk the stack to collect native stack frames, instead relying on the
profiler's cross-platform stack walking logic.
This helps remove some of the code from ThreadStackHelper which was redundant
with the profiler. Much of the pseudostack code in ThreadStackHelper is also
redundant, and should hopefully be eliminated in a follow-up.
MozReview-Commit-ID: 4RjLHt6inH9
This patch is mainly to make IdleTaskRunner reusable by nsHtml5TreeOpExecutor.
The only necessary work to that purpose is to remove the dependency of
sShuttingDown, which was a static variable in nsJSEnvironment.cpp.
The idea is to have a "ShouldCancel" as a callback for the consumer to
return sShuttingDown.
In addition to sShuttingDown, we use std::function<bool()> as the runner
main callback type.
MozReview-Commit-ID: FT2X1unSvPS
--HG--
extra : rebase_source : cfd99aba19f014327875683f5ea85d183c8af674
extra : intermediate-source : 99af874c7b1d278057194894d406474b8af07349
extra : source : 792359c898f68241e1373820ea8fd3ba18b09994
Nothing is changed in this patch except for renaming and code move around.
The strategy is to have the final file setup in this patch without any
detail change. The actual code change will be in the next patch so that
we can focus on reviewing the diff in the next patch regarding IdleTaskRunner.
MozReview-Commit-ID: 4Bul9mZ7z1n
--HG--
extra : rebase_source : 21d7d601c70304d69100d96cecfdb3e0322cb777
extra : intermediate-source : 366862231c26e085fe749012a09418aa31936224
extra : source : 7b4e77911d1471c33fda0a43b50ed17c5274e795
This patch does the following renamings, which increase consistency.
- GeckoProfilerInitRAII -> AutoProfilerInit
- GeckoProfilerThread{Sleep,Wake}RAII -> AutoProfilerThread{Sleep,Wake}
- GeckoProfilerTracingRAII -> AutoProfilerTracing
- AutoProfilerRegister -> AutoProfilerRegisterThread
- ProfilerStackFrameRAII -> AutoProfilerLabel
- nsJSUtils::mProfilerRAII -> nsJSUtils::mAutoProfilerLabel
Plus a few other minor ones (e.g. local variables).
The patch also add MOZ_GUARD_OBJECT macros to all the profiler RAII classes
that lack them, and does some minor whitespace reformatting.
--HG--
extra : rebase_source : 47e298fdd6f6b4af70e3357ec0b7b0580c0d0f50
We want people to transition to using event targets rather than threads when possible. These
getters should make it easier to make that change.
MozReview-Commit-ID: 3bN4tRgJjBL
This modifies the logic in |CheckAcquisition| to only call |NS_ERROR| if we're
really going to deadlock. Instead, if we detect a suspicious cycle, we just use
an |NS_WARNING|. This means that we'll still output warning text in debug
builds, but we won't cause the process to abort.
MozReview-Commit-ID: 71mFInWwbDY
This modifies the logic in |CheckAcquisition| to only call |NS_ERROR| if we're
really going to deadlock. Instead, if we detect a suspicious cycle, we just use
an |NS_WARNING|. This means that we'll still output warning text in debug
builds, but we won't cause the process to abort.
MozReview-Commit-ID: 71mFInWwbDY
These annotations aren't doing anything useful. The important thing with
the PseudoStack is that, during pushes, the stack pointer incrementing happens
after the new entry is written, and this is ensured by the stack pointer being
Atomic.
The patch also improves the comments on PseudoStack.
--HG--
extra : rebase_source : 100f8a5e4b750c15fac66175550c4c284a141f16
This reduces duplicate code by handling promise chaining in one place.
MozReview-Commit-ID: 474T5hvf9oM
--HG--
extra : rebase_source : b8de5bad5597234654d476b93c0c89abc5215073
extra : intermediate-source : b0f3d3fef28646c31c87acfbfbf36ec9329e7a6c
extra : source : 89aab3206558922271aff1d611f029aed3910acf
This patch fixes InvokeCallbackMethod() which should return null
if promise-chaining is not supported.
Before this patch, it could return non-null if one of the resolve/reject callbacks
returns a MozPromise while the other not.
MozReview-Commit-ID: 7YKNvRKEHQx
--HG--
extra : rebase_source : 6429d9eef35efa0128e8b5967097850e6f4a4325
extra : intermediate-source : 6f73de7d2d5fb01be19fdf7d7037b506425eab18
extra : source : a1849e24b09b0b4e986ffaef14d2602541c1c6e8
In TSF mode, application should retrieve messages with ITfMessagePump::GetMessage() or ITfMessagePump::PeekMessage() since TSF/TIP may handle the message before or after the host application handles it.
This patch rewrites the API users with WinUtils::(Get|Peek)Message() which use ITfMessagePump if it's available.
MozReview-Commit-ID: LwHIgp7SxLH
--HG--
extra : rebase_source : aa5750af9812f9b107c29546cbee6f9eede6ebfa
http://searchfox.org/mozilla-central/rev/d441cb24482c2e5448accaf07379445059937080/xpcom/threads/MozPromise.h#953-958
MozPromiseRequestHolder is not thread-safe and it is possible for
mReceiver->ThenInternal() to trigger resolve/reject callbacks before
aRequestHolder.Track() is run. We should call aRequestHolder.Track()
before mReceiver->ThenInternal() to avoid the race condition.
MozReview-Commit-ID: K2R09m9UFBF
--HG--
extra : rebase_source : d656498e74d470fdbb82e7525d82af5fb3100735
Delegating to mozilla::Runnable caused us to return the wrong value once
SchedulerGroup started passing a non-empty name to the Runnable constructor.
MozReview-Commit-ID: 2zMlpiMnHwv
This reduces duplicate code by handling promise chaining in one place.
MozReview-Commit-ID: 474T5hvf9oM
--HG--
extra : rebase_source : b8de5bad5597234654d476b93c0c89abc5215073
extra : intermediate-source : b0f3d3fef28646c31c87acfbfbf36ec9329e7a6c
extra : source : 89aab3206558922271aff1d611f029aed3910acf
This patch fixes InvokeCallbackMethod() which should return null
if promise-chaining is not supported.
Before this patch, it could return non-null if one of the resolve/reject callbacks
returns a MozPromise while the other not.
MozReview-Commit-ID: 7YKNvRKEHQx
--HG--
extra : rebase_source : 6429d9eef35efa0128e8b5967097850e6f4a4325
extra : intermediate-source : 6f73de7d2d5fb01be19fdf7d7037b506425eab18
extra : source : a1849e24b09b0b4e986ffaef14d2602541c1c6e8
Since we will store mCompletionPromise in the sub-class of ThenValueBase,
ThenCommand needs to reference the sub-type in order to access mCompletionPromise.
MozReview-Commit-ID: BUi7jElOhP7
--HG--
extra : rebase_source : e94c7da8488bb51e543740149925c4cb6514ad54
extra : source : 21dc7e0202dcc64a781c1d92d4d1b7988b5d37a2
This allows us to remove 2 overloads of MozPromise::Then() using variadic template.
MozReview-Commit-ID: 5LHwDhIhh8e
--HG--
extra : rebase_source : 9b84a92858736b389bd2e60aa7392bfec526ab72
extra : source : 3cdd047583693a7abf479dd75620d1c7d07da70d
This includes renaming its fields to match SpiderMonkey naming conventions
instead of Gecko naming conventions.
This patch is just about moving the code. The next patch will change
SpiderMonkey to actually use PseudoStack directly.
--HG--
extra : rebase_source : 27e77ddf950201eb6bdba60003218056442cf7ab
ProfileEntry has |string|, which can be static or dynamic, and |dynamicString|.
If |string| is dynamic, the FRAME_LABEL_COPY flag must be set, and it will be
copied into profiler output.
But there is only one place that uses dynamic |string| values, in SpiderMonkey.
And that place doesn't use |dynamicString|. So this patch changes that place to
use an empty |string| and put the old dynamic |string| value in
|dynamicString|. This in turn removes the need for FRAME_LABEL_COPY.
One minor wrinkle is that when |dynamicString| is used the old code put a space
between |string| and |dynamicString|. The new code omits the space if |string|
is empty.
The patch also renames ProfileEntry::string as ProfileEntry::label_, which
better matches how it's used, and ProfileEntry::dynamicString as
ProfileEntry::dynamicString_ so the getter can be renamed dynamicString().
This patch uses the profiler_suspend_sample_thread method which was added in
part 1.
With this patch, we no longer manually run code to pause the target thread,
instead using the profiler's provided code to do so. In addition, we no longer
manually walk the stack to collect native stack frames, instead relying on the
profiler's cross-platform stack walking logic.
This helps remove some of the code from ThreadStackHelper which was redundant
with the profiler. Much of the pseudostack code in ThreadStackHelper is also
redundant, and should hopefully be eliminated in a follow-up.
MozReview-Commit-ID: 4RjLHt6inH9
Accumulates the time in between running unlabeled runnables in a histogram. This
measurement will be useful to see how much of a win the cooperative scheduler
will be, assuming we label no more runnables.
MozReview-Commit-ID: 9lgoGJcXLP9
This function is arguably nicer than calling NS_ProcessNextEvent
manually, is slightly more efficient, and will enable better auditing
for NS_ProcessNextEvent when we do Quantum DOM scheduling changes.
When IsExclusive is true, there is at most only one consumer.
So it is safe to move the ResolveOrRejectValue stored in the promise.
MozReview-Commit-ID: ED9fFr7TkvN
--HG--
extra : rebase_source : 57c6732279a2c76fc21c3e7bad17d70f9cd0834a
extra : intermediate-source : c55836b6708150e88c2ca3a804c2cf2fbcf79990
extra : source : 3285b59746e994283e101cc10267d3a642c96ab3
This change adds some functions that should be used instead of PR_GetCurrentThread. They both return a PRThread. GetCurrentPhysicalThread does exactly the same thing as PR_GetCurrentThread, but it makes it clearer what you're getting when there are cooperatively scheduled threads running.
GetCurrentVirtualThread returns the same value for all threads in a cooperative thread pool. The actual value it returns is somewhat immaterial.
MozReview-Commit-ID: 4lFwsF2NuzC
A template won't be instatiated until used. We make it a compile error
to call Then() on ThenCommand<false> to disallow promise chaining.
MozReview-Commit-ID: BUCFgfX4FTJ
--HG--
extra : rebase_source : 0b46b9d10a9b7dec3f15ad4596d9726365f6f859
extra : source : 5676128a7a3ee68bf9eee01bbdf8b983117d5655
StoreCopyPassByRRef<> ensures a copy is stored in the runnable.
We don't have to worry about the concern of bug 1300476.
MozReview-Commit-ID: DHqlzlVLBFV
--HG--
extra : rebase_source : 77f2175611aa6fad88207a771de75fd28fd46f21
extra : source : 429c62928fd43185da45c905a150cfbe84cb3cf7
This possibly incurs an extra function call (depends on exactly how much inling
the compiler does). But it helps enormously with subsequent refactorings,
because PseudoStack (and related types) don't need to be visible in
GeckoProfiler.h, which is exported outside the profiler.
--HG--
extra : rebase_source : f2dc5952d7444dfe12e627e86e6d37632b283107
Sebastian Hengst
Carsten "Tomcat" Book
Nicholas Nethercote
Markus Stange
Bevis Tseng
Eric Rahm
Nathan Froyd
Bill McCloskey
Daniel Holbert
Sylvestre Ledru
Stone Shih
Andrew Osmond
Michael Layzell
Andrea Marchesini
Wes Kocher
Tom Ritter
Andreas Farre
Mats Palmgren
JW Wang
Phil Ringnalda
Gerald Squelart
Olli Pettay
Ehsan Akhgari
Henry Chang
Aaron Klotz
Ryan VanderMeulen
Masayuki Nakano
Ben Kelly
Manish Goregaokar
Kan-Ru Chen
Gabriele Svelto
Iris Hsiao
Byron Campen [:bwc]