We avoid going through Substring which imposes a limit on the string length of
INT32_MAX and failing a MOZ_RELEASE_ASSERT otherwise.
This adds a new `Base64EncodeAppend` function that takes 8-bit char input and
produces 16-bit char output, and appends to an existing string, which is what
we need here to avoid doing a large copy. Base64EncodeHelper is generalized
to accomodate for that.
So in addition to fixing the defect, this also optimizes performance and
memory usage.
Differential Revision: https://phabricator.services.mozilla.com/D87413
nsTArray_Impl::Assign/operator= copying from another array cause code bloat by
using ReplaceElementsAtInternal without exploiting the knowledge that the whole
array is being replaced. Since for many instances of the class template, this
is the only ReplaceElementsAtInternal call being done, this unnecessary bloats
the generated code. Apart from that, it is suboptimal at runtime due to
unnecessary checks.
Furthermore, the implementation of ReplaceElementsAtInternal may unnecessarily
relocate the existing elements before destroying them if the storage needs to
be reallocated. While this could be optimized in ReplaceElementsAtInternal as
well, it is simpler to do so in the specialized AssignInternal that is now
introduced.
Differential Revision: https://phabricator.services.mozilla.com/D86723
These have been cargo-culted all over the place and they are totally
unnecessary, not to mention potentially confusing. Let's delete them.
Differential Revision: https://phabricator.services.mozilla.com/D86978
This is a speculative fix for a crash we're seeing due to xul.css ostensibly
not existing. The theory is that xul.css does in fact exist and the cached
zip central for the omnijar is simply corrupt in some way. If it is corrupt in
this way, then there is a bigger issue, and we need to investigate deeper.
However, the benefit of this approach is that it is a very small and contained
patch which should be simple to uplift.
Differential Revision: https://phabricator.services.mozilla.com/D86829
This code was there to prevent stuff like bug 424377, but nowadays clone
documents are data documents to begin with, so they can't load scripts.
Differential Revision: https://phabricator.services.mozilla.com/D86948
The perfecthash module will instead try to sit in an infinite loop, so catching
this early is essential for giving better error messages.
Differential Revision: https://phabricator.services.mozilla.com/D85655
This change updates the unix implementation of nsLocalFile
Set/GetLastModifiedTime methods to improve the precision of file modification
times from a 1 second resolution to a 1 millisecond resolution.
Differential Revision: https://phabricator.services.mozilla.com/D86238
This changes the StartupCache::PutBuffer call from Omnijar to use a
fallibly allocated buffer, to reduce OOM crashes. We can/should broaden the
scope of this, but this is a simple initial change to mitigate the OOM
crashed introduced with bug 1627075.
Differential Revision: https://phabricator.services.mozilla.com/D86067
We now use `PARAM_BUFFER_COUNT` for slightly more stuff, so update the
comment describing its two uses. Experimentation has also shown that we can
decrease the count slightly, which is a tiny tiny win.
Differential Revision: https://phabricator.services.mozilla.com/D86214
Now that we've statically ensured everything fits into the stack-allocated
array(s), we can delete the case that handled dynamic allocation.
Differential Revision: https://phabricator.services.mozilla.com/D86213
We used to not be able to do something like this, and therefore our xpidl
calling code had to be fully general. But now that we know all possible
xpidl methods at build time, we can ensure that the number of parameters
does not exceed some bound. And we choose that bound to be the maximum
number of stack-allocated parameters our calling code supports.
Differential Revision: https://phabricator.services.mozilla.com/D86212
There's no reason to have a different count depending on whether we have
floating-point registers or not; xpidl functions will have the same number
of parameters regardless. This change also synchronizes soft-float PPC with
every other architecture.
Differential Revision: https://phabricator.services.mozilla.com/D86210
This attribute will subsume the existing sameProcessAsFrameLoader attribute. It
works by specifying the BrowsingContextGroup which the initial BrowsingContext
in a <browser> should be created within.
Due to bug 1652144, all documents within the same BrowsingContextGroup with the
same remote type will be loaded in the same process, meaning that specifying
both "initialBrowsingContextGroupId" and "remoteType" will cause the initial
about:blank document to be loaded in a specific content process.
Differential Revision: https://phabricator.services.mozilla.com/D85650
I realized this was broken because feature policy was not accounting for
it (I fixed that in 79), but I _thought_ we weren't shipping
feature policy. It turns out we've been shipping it for a while (since 74),
so I'd rather remove support for it officially.
Differential Revision: https://phabricator.services.mozilla.com/D86191
This patch:
- Creates an anon-box pseudo-style for PrintedSheetFrame, in part so that it
can co-opt the styles that we formerly gave to page-frames in ua.css, to draw
the sheet of paper and the shadow in Print Preview.
- Adjusts nsCSSFrameConstructor to create a PrintedSheetFrame as the parent of
nsPageFrame (inserting between it and its nsPageSequenceFrame container, in
the frame tree).
- Fleshes out out a simple BuildDisplayList() implementation for
PrintedSheetFrame (taking the responsibility for "paper"-drawing from
nsPageFrame).
- Fleshes out a simple Reflow implementation for PrintedSheetFrame, just
placing the child page (assuming there's only one for now) at the origin.
- Adjusts nsPageFrame and nsPageSequenceFrame to account for the fact that
there's another layer between them now.
Note that PrintedSheetFrame needs to implement AppendDirectlyOwnedAnonBoxes()
(just as nsSimplePageSequence and nsPageFrame do), since it owns anonymous
nsPageFrame instances. This implementation only needs to append the first
child, as explained in the code-comment and in
https://bugzilla.mozilla.org/show_bug.cgi?id=1374761#c9 (and of course, for
now, PrintedSheetFrame only has one child at a time anyway.)
Differential Revision: https://phabricator.services.mozilla.com/D83457
The mentioned array operations were implemented using SwapElements, which is a
rather generic and therefore complex method (in the sense of template
instantiation and code generation), which doesn't make use of the knowledge that
the target array is empty and does not have any allocated heap storage.
Similar to the introduction of MoveConstructNonAutoArray, a new method, MoveInit,
is introduced that uses this knowledge.
Differential Revision: https://phabricator.services.mozilla.com/D84806
The move constructor of nsTArray_Impl (and therefore of nsTArray) was
implemented using SwapElements, which is a rather generic and therefore
complex method (in the sense of template instantiation and code generation),
which doesn't make use of the knowledge that the target array does not have
inline storage and is empty with 0 capacity. Therefore, a new specialized method,
MoveConstructNonAutoArray, is introduced that does use this knowledge. This
adds another method to maintain, but given that the move constructor is a
frequently used operation that is expected to have a small compile-time and
run-time cost (potentially used implicitly), this seems like a reasonable
trade-off.
Differential Revision: https://phabricator.services.mozilla.com/D84804
The mentioned array operations were implemented using SwapElements, which is a
rather generic and therefore complex method (in the sense of template
instantiation and code generation), which doesn't make use of the knowledge that
the target array is empty and does not have any allocated heap storage.
Similar to the introduction of MoveConstructNonAutoArray, a new method, MoveInit,
is introduced that uses this knowledge.
Differential Revision: https://phabricator.services.mozilla.com/D84806
The move constructor of nsTArray_Impl (and therefore of nsTArray) was
implemented using SwapElements, which is a rather generic and therefore
complex method (in the sense of template instantiation and code generation),
which doesn't make use of the knowledge that the target array does not have
inline storage and is empty with 0 capacity. Therefore, a new specialized method,
MoveConstructNonAutoArray, is introduced that does use this knowledge. This
adds another method to maintain, but given that the move constructor is a
frequently used operation that is expected to have a small compile-time and
run-time cost (potentially used implicitly), this seems like a reasonable
trade-off.
Differential Revision: https://phabricator.services.mozilla.com/D84804
Historically, the MediaThreadType::PLAYBACK was used just for that; the MediaDecoderReader and exclusively for playback content.
This is no longer the case ; it's used in multiple places, and not just with playback: webrtc, webaudio, benchmark etc.
The primary use of the "PLAYBACK" thread was to distinguish from the "PLATFORM_DECODER" one as they dispatch synchronous tasks from one to the other, and we must ensure they don't share the same threadpool.
CONTROLLER is more fitting here, as this is how it's typically used: a controller thread manage the decoder threads.
Additionally, we remove the MTG_CONTROL one as it's not used.
Differential Revision: https://phabricator.services.mozilla.com/D85543
Add an event handler `onactivated/ondeactivated` and a readonly attribute `isActive` on the media control webidl interface, and they can be used in testing and the future plan of supporting media hub.
Differential Revision: https://phabricator.services.mozilla.com/D85229
Currently, this code creates large and non-trivial classes that will be
difficult to remote. This change creates an intermediate stage where a simple
struct is returned from a function and then used to initialize these
more complex classes.
It is this simple struct that will be remoted across processes
Differential Revision: https://phabricator.services.mozilla.com/D83405
CLOSED TREE
We don't need these macros anymore, for two reasons:
1. We have static analysis to provide the same sort of checks via `MOZ_RAII`
and friends.
2. clang now warns for the "temporary that should have been a declaration" case.
The extra requirements on class construction also show up during debug tests
as performance problems.
This change was automated by using the following sed script:
```
# Remove declarations in classes.
/MOZ_DECL_USE_GUARD_OBJECT_NOTIFIER/d
/MOZ_GUARD_OBJECT_NOTIFIER_INIT/d
# Remove individual macros, carefully.
{
# We don't have to worry about substrings here because the closing
# parenthesis "anchors" the match.
s/MOZ_GUARD_OBJECT_NOTIFIER_PARAM)/)/g;
s/MOZ_GUARD_OBJECT_NOTIFIER_PARAM_TO_PARENT)/)/g;
s/MOZ_GUARD_OBJECT_NOTIFIER_PARAM_IN_IMPL)/)/g;
s/MOZ_GUARD_OBJECT_NOTIFIER_ONLY_PARAM_IN_IMPL)/)/g;
# Remove the longer identifier first.
s/MOZ_GUARD_OBJECT_NOTIFIER_ONLY_PARAM_TO_PARENT//g;
s/MOZ_GUARD_OBJECT_NOTIFIER_ONLY_PARAM//g;
}
# Remove the actual include.
\@# *include "mozilla/GuardObjects.h"@d
```
and running:
```
find . -name \*.cpp -o -name \*.h | grep -v 'GuardObjects.h' |xargs sed -i -f script 2>/dev/null
mach clang-format
```
Differential Revision: https://phabricator.services.mozilla.com/D85168
We don't need these macros anymore, for two reasons:
1. We have static analysis to provide the same sort of checks via `MOZ_RAII`
and friends.
2. clang now warns for the "temporary that should have been a declaration" case.
The extra requirements on class construction also show up during debug tests
as performance problems.
This change was automated by using the following sed script:
```
# Remove declarations in classes.
/MOZ_DECL_USE_GUARD_OBJECT_NOTIFIER/d
/MOZ_GUARD_OBJECT_NOTIFIER_INIT/d
# Remove individual macros, carefully.
{
# We don't have to worry about substrings here because the closing
# parenthesis "anchors" the match.
s/MOZ_GUARD_OBJECT_NOTIFIER_PARAM)/)/g;
s/MOZ_GUARD_OBJECT_NOTIFIER_PARAM_TO_PARENT)/)/g;
s/MOZ_GUARD_OBJECT_NOTIFIER_PARAM_IN_IMPL)/)/g;
s/MOZ_GUARD_OBJECT_NOTIFIER_ONLY_PARAM_IN_IMPL)/)/g;
# Remove the longer identifier first.
s/MOZ_GUARD_OBJECT_NOTIFIER_ONLY_PARAM_TO_PARENT//g;
s/MOZ_GUARD_OBJECT_NOTIFIER_ONLY_PARAM//g;
}
# Remove the actual include.
\@# *include "mozilla/GuardObjects.h"@d
```
and running:
```
find . -name \*.cpp -o -name \*.h | grep -v 'GuardObjects.h' |xargs sed -i -f script 2>/dev/null
mach clang-format
```
Differential Revision: https://phabricator.services.mozilla.com/D85168
The current use of `PodZero` (`memset`) triggers `-Wclass-memaccess`
warnings, and member initializers are arguably nicer.
Differential Revision: https://phabricator.services.mozilla.com/D84690
This patch adds a new measurement to the histogram about the elapsed time
of `ShellExecuteByExplorer`. If ShellExecuteByExplorer takes long in
a considerable number of instances, we need to consider fixing bug 1646986.
Differential Revision: https://phabricator.services.mozilla.com/D84407
Having two classes in the inheritance chain inherit from SupportsWeakPtr
now won't compile, but you can use WeakPtr<Derived> when any base class
inherits from SupportsWeakPtr.
Differential Revision: https://phabricator.services.mozilla.com/D83674
Having a thread limit of 1 in the background thread pools causes deadlock when attempting synchonous dispatch on the same pool. Increasing the thread limit on each pool to 2 lessens the risk of this kind of deadlock, so it's not the perfect solution where we wouldn't allow any kind of offthread synchronous dispatch that could cause a deadlock. These thread pools may eventually scale larger, so this patch sets the idle thread limit low.
Differential Revision: https://phabricator.services.mozilla.com/D83999
* Use clearer pref names.
* Default (and only support) IPDL dispatching.
* Make DispatchCommands async-only.
* Sync ipdl command per sync webgl entrypoint.
* Eat the boilerplate cost, since there's not too many.
* Run SerializedSize off same path as Serialize.
* All shmem uploads go through normal DispatchCommands.
* Defer pruning of dead code for now so we can iterate quickly.
* Use Read/Write(begin,end) instead of (begin,size).
* This would have prevented a bug where we read/wrote N*sizeof(T)*sizeof(T).
Differential Revision: https://phabricator.services.mozilla.com/D81495
We do not expose it nor ever style it. Just use the parent style all the
time. This avoids problematic style resolution calls during reflow.
Differential Revision: https://phabricator.services.mozilla.com/D84358
This code glues the JS GC code that creates the telemetry with a JS module
that processes it. This patch removes this code unhooking these
components.
Differential Revision: https://phabricator.services.mozilla.com/D84163
This patch introduces a remove method to the IOUtils interface, which allows
for removing files and directories on disk. It is a simple wrapper around
the nsIFile::Remove method.
Differential Revision: https://phabricator.services.mozilla.com/D83663
This also factors out FinalizationRegistry support into a separate class.
The JS engine now passes a callback function and the incumbent global which are recorded in QueueCallback. FinalizationRegistryCleanup::DoCleanup creates a CallbackObject can calls it immediately (I originally tried creating it in QueueCallback but there were problems because this is called during GC).
I coped most of this from the way promise reaction jobs work. I added FinalizationRegistryCleanupCallback; I don't know if that's overkill.
Differential Revision: https://phabricator.services.mozilla.com/D83614
This also factors out FinalizationRegistry support into a separate class.
The JS engine now passes a callback function and the incumbent global which are recorded in QueueCallback. FinalizationRegistryCleanup::DoCleanup creates a CallbackObject can calls it immediately (I originally tried creating it in QueueCallback but there were problems because this is called during GC).
I coped most of this from the way promise reaction jobs work. I added FinalizationRegistryCleanupCallback; I don't know if that's overkill.
Differential Revision: https://phabricator.services.mozilla.com/D83614
CLOSED TREE
Backed out changeset 8b21977bb2df (bug 1648453)
Backed out changeset 4cac71f274b8 (bug 1648453)
Backed out changeset a9ad01b4ab2e (bug 1648453)
This also factors out FinalizationRegistry support into a separate class.
The JS engine now passes a callback function and the incumbent global which are recorded in QueueCallback. FinalizationRegistryCleanup::DoCleanup creates a CallbackObject can calls it immediately (I originally tried creating it in QueueCallback but there were problems because this is called during GC).
I coped most of this from the way promise reaction jobs work. I added FinalizationRegistryCleanupCallback; I don't know if that's overkill.
Differential Revision: https://phabricator.services.mozilla.com/D83614
Dispatching to the underlying thread of what could be a thread-pool can lead to data-race as the code won't be run where you expect it to.
Differential Revision: https://phabricator.services.mozilla.com/D82632
We're crashing occasionally here due to an assertion in Span.h. We would
also likely have problems down the road if we tried to cache nullptrs in
the startup cache. I think this is all we need to handle this as gracefully
as we are able - at least, this should make it so the recent StartupCache
changes are no longer making failure any less graceful.
Differential Revision: https://phabricator.services.mozilla.com/D83189
This runs an extra GC cycle when a worker goes idle if the cycle collector collected anything. This fixes the test case given (but not the case in the original bug).
Differential Revision: https://phabricator.services.mozilla.com/D82869
Simon Giesecke
Mike Hommey
Erik Nordin
Nika Layzell
alwu
Zeke Medley
Mihai Alexandru Michis
Chris Fronk
Gerald Squelart
Nathan Froyd
Doug Thayer
Emilio Cobos Álvarez
Joshua Cranmer
Razvan Maries
Keefer Rourke
Jorg K
Daniel Holbert
Noemi Erli
Jean-Yves Avenard
Sylvestre Ledru
Chris Martin
Jeff Walden
Alexander Surkov
Sebastian Streich
Brindusan Cristian
Mozilla Releng Treescript
Dimi Lee
Toshihito Kikuchi
Honza Bambas
Jon Coppeard
Tim Nguyen
Narcis Beleuzu
Ricky Stewart
Kristen Wright
Jeff Gilbert
Paul Bone
Bas Schouten
longsonr
Mitchell Hentges
Andrea Marchesini
Kris Maglione