This is the first of two patches in this series that removes a large amount of now dead code from dom/plugins as part of removing all NPAPI plugin support. This patch removes re-entrancy guards we have for Windows OnPaint messages, as the guards were only needed for windowed plugins.
Differential Revision: https://phabricator.services.mozilla.com/D107144
Removes the mac plugin_interposer (and the related NSCursorInfo behavior), as part of removing all of NPAPI plugin support, since it has no other clients.
Differential Revision: https://phabricator.services.mozilla.com/D107142
Removes the PPluginSurface actor used for windowed plugins, as part of removing all of NPAPI plugin support. SharedDIB is then unused and is also removed.
Differential Revision: https://phabricator.services.mozilla.com/D107140
This patch exposes SharedMemoryBasic::Unmap for use by callers to allow
one to unmap memory out of our address space without destroying the
SharedMemoryBasic object itself. This will be used by later patches in
this series.
Differential Revision: https://phabricator.services.mozilla.com/D109438
This patch exposes SharedMemoryBasic::Unmap for use by callers to allow
one to unmap memory out of our address space without destroying the
SharedMemoryBasic object itself. This will be used by later patches in
this series.
Differential Revision: https://phabricator.services.mozilla.com/D109438
This patch exposes SharedMemoryBasic::Unmap for use by callers to allow
one to unmap memory out of our address space without destroying the
SharedMemoryBasic object itself. This will be used by later patches in
this series.
Differential Revision: https://phabricator.services.mozilla.com/D109438
When setting up calls to `sendmsg` for IPC on Unix systems, we generate
`iovec`s for the entire message or until the `IOV_MAX` limit is reached,
whichever comes first. However, messages can be very large (up to 256
MiB currently), while the OS socket buffer is relatively small (8KiB on
macOS and FreeBSD, ~200KiB on Linux).
This patch detects the socket buffer size with the `SO_SNDBUF` socket
option and cuts off the `iovec` array after it's reached; it also adjusts
the Linux sandbox policy to allow reading that value in all processes.
On my test machines this increases throughput on large messages by about
2.5x on macOS (from ~0.3 to ~0.7 GB/s), but on Linux the improvement is
only about 5% (most of the running time is spent elsewhere).
Differential Revision: https://phabricator.services.mozilla.com/D105852
Currently we walk through the entire list of not-yet-written IPC buffers
when building the gathered I/O list for `sendmsg`, to determine the
total remaining length of the messages, even after reaching the OS's
limit on how many `iovec`s it will accept in one call.
This patch halts the iteration when we reach the `iovec` limit, because
we don't need the exact length; it's sufficient to know whether the
entire message was written, which is impossible in that case.
This increases throughput on large messages by about 7x on macOS (from
~0.04 to ~0.3 GB/s) and 1.7x on Linux (from ~0.3 to ~0.5 GB/s), on my
test machines. The effect is more significant on macOS because its
smaller socket buffer size (8kB vs. ~200kB) means we spend more time
setting up the syscall per unit data copied; see also the next patch.
Differential Revision: https://phabricator.services.mozilla.com/D105851
This patch adds a flag 'needForCheckingAntiTrackingHeuristic' in
loadInfo. This flag will be used for deciding if we need to check the
AntiTracking heuristic after the channel has been classified.
Differential Revision: https://phabricator.services.mozilla.com/D107047
Note that this patch only transforms the use of the nsDataHashtable type alias
to a directly equivalent use of nsTHashMap. It does not change the specification
of the hash key type to make use of the key class deduction that nsTHashMap
allows for in some cases. That can be done in a separate step, but requires more
attention.
Differential Revision: https://phabricator.services.mozilla.com/D106008
PGamepadEventChannelParent will need to send an async message back to the
child with info about the new shared memory region upon creation.
The IPDL channel is not ready during allocation, so we need to defer
registering the actor with GamepadPlatformService until the IPDL
"RecvConstructor" message so the channel will be available.
This is just a straight refactor to prepare for the upcoming change.
Differential Revision: https://phabricator.services.mozilla.com/D105127
PGamepadEventChannelParent will need to send an async message back to the
child with info about the new shared memory region upon creation.
The IPDL channel is not ready during allocation, so we need to defer
registering the actor with GamepadPlatformService until the IPDL
"RecvConstructor" message so the channel will be available.
This is just a straight refactor to prepare for the upcoming change.
Differential Revision: https://phabricator.services.mozilla.com/D105127
PGamepadEventChannelParent will need to send an async message back to the
child with info about the new shared memory region upon creation.
The IPDL channel is not ready during allocation, so we need to defer
registering the actor with GamepadPlatformService until the IPDL
"RecvConstructor" message so the channel will be available.
This is just a straight refactor to prepare for the upcoming change.
Differential Revision: https://phabricator.services.mozilla.com/D105127
This patch wants to solve several quirks around the shutdown terminator.
- Use the same shutdown phase definitions in AppShutdown and nsTerminator. This touches quite a few files.
- Ensure that the terminator phase shift is handled before any shutdown observer notifications are sent and reduce its heartbeat duration.
- Add missing phases to the shutdown telemetry.
Please note that this changes the unit of "tick" to 100ms rather than 1s.
As a side effect, we also remove the obsolete "shutdown-persist" context.
While the existing test coverage continues to prove the most important functions, we acknowledge the wish for better test coverage with [[ https://bugzilla.mozilla.org/show_bug.cgi?id=1693966 | bug 1693966 ]].
Differential Revision: https://phabricator.services.mozilla.com/D103626
This patch wants to solve several quirks around the shutdown terminator.
- Use the same shutdown phase definitions in AppShutdown and nsTerminator. This touches quite a few files.
- Ensure that the terminator phase shift is handled before any shutdown observer notifications are sent and reduce its heartbeat duration.
- Add missing phases to the shutdown telemetry.
Please note that this changes the unit of "tick" to 100ms rather than 1s.
As a side effect, we also remove the obsolete "shutdown-persist" context.
While the existing test coverage continues to prove the most important functions, we acknowledge the wish for better test coverage with [[ https://bugzilla.mozilla.org/show_bug.cgi?id=1693966 | bug 1693966 ]].
Differential Revision: https://phabricator.services.mozilla.com/D103626
This makes the naming more consistent with other functions called
Insert and/or Update. Also, it removes the ambiguity whether
Put expects that an entry already exists or not, in particular because
it differed from nsTHashtable::PutEntry in that regard.
Differential Revision: https://phabricator.services.mozilla.com/D105473
In bug 1691415 we're getting failures to deserialize. It would be
nice to move these closer to the source so that we can better understand
what's going on.
Differential Revision: https://phabricator.services.mozilla.com/D105688
We know that some GV installations (particularly but not exlcusively Focus) are
failing to load `libxul.so` during early Gecko bootstrapping. Unfortunately
a boolean pass/fail result is not giving us sufficient information to be able to
properly troubleshoot this problem.
This patch adds `mozilla::Result`-based return values to `XPCOMGlueLoad` and
`GetBootstrap` in an effort to produce more actionable information about these
failures.
We include either a `nsresult` or, if the failure is rooted in a dynamic linker
failure, appropriate platform-specific error information:
* On Unix-based platforms, a `UniqueFreePtr<char>` containing the string from `dlerror(3)`;
* On Windows, the Win32 `DWORD` error code from `GetLastError()`.
For non-Android platforms, I updated them to handle the new return type, but
otherwise did not make any further changes.
For Android, we include the error information in the message string that we pass
into the Java `Exception` that is subsequently thrown.
Differential Revision: https://phabricator.services.mozilla.com/D104263
This point in the code is the end of receiving a message, not the start
(note the `if (partial) { break; }` above), so it should be marked
accordingly. The profiler frontend is expecting the end marker;
currently two of the four reported time intervals are `unknown` on
Windows, and this patch fixes that.
(Recording the receiving start time is complicated, because we don't
have a `Messsage` object until we've read the buffer with the (end of
the) header, and it might make more sense to timestamp it before the
first receive operation. Currently, neither channel implementation
attempts this.)
Differential Revision: https://phabricator.services.mozilla.com/D105094
Currently, we add an `eSending`/`TransferStart` marker every time we
send data as part of a message, rather than only the first time. The
profiler frontend appears to ignore the extra markers (the displayed time
intervals look reasonable), but it's wasteful: on large messages it can
consume enough CPU time to appear in the profile itself.
Differential Revision: https://phabricator.services.mozilla.com/D105093
There are no code changes, only #include changes.
It was a fairly mechanical process: Search for all "AUTO_PROFILER_LABEL", and in each file, if only labels are used, convert "GeckoProfiler.h" into "ProfilerLabels.h" (or just add that last one where needed).
In some files, there were also some marker calls but no other profiler-related calls, in these cases "GeckoProfiler.h" was replaced with both "ProfilerLabels.h" and "ProfilerMarkers.h", which still helps in reducing the use of the all-encompassing "GeckoProfiler.h".
Differential Revision: https://phabricator.services.mozilla.com/D104588
The current set of cases where a nsIInputStream is directly serialized over IPC
is fairly limited, and includes cases where the IPDL struct may be directly
stored within a content process, having the nsIInputStream left unused.
By switching this serialization to DelayedStart, we can avoid performing
unnecessary streaming copies of IPC data when sending postdata streams related
to session history and document navigation, while also avoiding issues like this
coming up again due to delayed start being the default.
Differential Revision: https://phabricator.services.mozilla.com/D101804
When aDelayedStart is specified, if the created IPCStream contains an internal
IPC stream actor, an actor is used under the hood to send raw data between
processes when needed. This is usually done to reduce overhead in cases where
the target process may not use the nsIInputStream immediately, if at all.
By switching to using RemoteLazyInputStream when sending DelayedStart actors
from parent to content, the amount of data sent in the initial payload is
reduced even further, and the stream is optimized to allow sending it back to
the parent process without streaming the data through the content process again.
Normal delayed start streams are still used when sending payloads from other
processes, as RemoteLazyInputStream is only supported for nsIInputStreams
originating in the parent process.
Differential Revision: https://phabricator.services.mozilla.com/D101803
Previously, we would apply the InputStreamLengthWrapper before
DelayedStartInputStream, which meant that a stream serialized with aDelayedStart
would not correctly implement nsIInputStreamLength. By inverting the order of
these wrappers, the nsIInputStreamLength implementation is visible, without
impacting the functionality of the DelayedStartInputStream wrapper.
Differential Revision: https://phabricator.services.mozilla.com/D101802
Without the other patches in this series, this test fails with both with and
without Fission enabled, for two different reasons.
With Fission disabled, the second reload request appears as empty, due to us
being unable to rewind the postData nsIInputStream. With Fission enabled, the
second reload request causes crashes due to the nsMIMEInputStream's invariant of
requiring a seekable stream is invalidated, causing the nsICloneableInputStream
implementation to misbehave.
Differential Revision: https://phabricator.services.mozilla.com/D101800
The current set of cases where a nsIInputStream is directly serialized over IPC
is fairly limited, and includes cases where the IPDL struct may be directly
stored within a content process, having the nsIInputStream left unused.
By switching this serialization to DelayedStart, we can avoid performing
unnecessary streaming copies of IPC data when sending postdata streams related
to session history and document navigation, while also avoiding issues like this
coming up again due to delayed start being the default.
Differential Revision: https://phabricator.services.mozilla.com/D101804
When aDelayedStart is specified, if the created IPCStream contains an internal
IPC stream actor, an actor is used under the hood to send raw data between
processes when needed. This is usually done to reduce overhead in cases where
the target process may not use the nsIInputStream immediately, if at all.
By switching to using RemoteLazyInputStream when sending DelayedStart actors
from parent to content, the amount of data sent in the initial payload is
reduced even further, and the stream is optimized to allow sending it back to
the parent process without streaming the data through the content process again.
Normal delayed start streams are still used when sending payloads from other
processes, as RemoteLazyInputStream is only supported for nsIInputStreams
originating in the parent process.
Differential Revision: https://phabricator.services.mozilla.com/D101803
Previously, we would apply the InputStreamLengthWrapper before
DelayedStartInputStream, which meant that a stream serialized with aDelayedStart
would not correctly implement nsIInputStreamLength. By inverting the order of
these wrappers, the nsIInputStreamLength implementation is visible, without
impacting the functionality of the DelayedStartInputStream wrapper.
Differential Revision: https://phabricator.services.mozilla.com/D101802
Without the other patches in this series, this test fails with both with and
without Fission enabled, for two different reasons.
With Fission disabled, the second reload request appears as empty, due to us
being unable to rewind the postData nsIInputStream. With Fission enabled, the
second reload request causes crashes due to the nsMIMEInputStream's invariant of
requiring a seekable stream is invalidated, causing the nsICloneableInputStream
implementation to misbehave.
Differential Revision: https://phabricator.services.mozilla.com/D101800
The current set of cases where a nsIInputStream is directly serialized over IPC
is fairly limited, and includes cases where the IPDL struct may be directly
stored within a content process, having the nsIInputStream left unused.
By switching this serialization to DelayedStart, we can avoid performing
unnecessary streaming copies of IPC data when sending postdata streams related
to session history and document navigation, while also avoiding issues like this
coming up again due to delayed start being the default.
Differential Revision: https://phabricator.services.mozilla.com/D101804
When aDelayedStart is specified, if the created IPCStream contains an internal
IPC stream actor, an actor is used under the hood to send raw data between
processes when needed. This is usually done to reduce overhead in cases where
the target process may not use the nsIInputStream immediately, if at all.
By switching to using RemoteLazyInputStream when sending DelayedStart actors
from parent to content, the amount of data sent in the initial payload is
reduced even further, and the stream is optimized to allow sending it back to
the parent process without streaming the data through the content process again.
Normal delayed start streams are still used when sending payloads from other
processes, as RemoteLazyInputStream is only supported for nsIInputStreams
originating in the parent process.
Differential Revision: https://phabricator.services.mozilla.com/D101803
Previously, we would apply the InputStreamLengthWrapper before
DelayedStartInputStream, which meant that a stream serialized with aDelayedStart
would not correctly implement nsIInputStreamLength. By inverting the order of
these wrappers, the nsIInputStreamLength implementation is visible, without
impacting the functionality of the DelayedStartInputStream wrapper.
Differential Revision: https://phabricator.services.mozilla.com/D101802
Without the other patches in this series, this test fails with both with and
without Fission enabled, for two different reasons.
With Fission disabled, the second reload request appears as empty, due to us
being unable to rewind the postData nsIInputStream. With Fission enabled, the
second reload request causes crashes due to the nsMIMEInputStream's invariant of
requiring a seekable stream is invalidated, causing the nsICloneableInputStream
implementation to misbehave.
Differential Revision: https://phabricator.services.mozilla.com/D101800
Previously, there was undefined behaviour when validating enum values in
EnumSerializer, which were actually invalid (which was hit during fuzzing, e.g.),
because the invalid integral value was cast to the enum type for comparison.
This patch changes the comparison to cast the valid values to their integral
values instead and compare those.
Differential Revision: https://phabricator.services.mozilla.com/D103449
The current set of cases where a nsIInputStream is directly serialized over IPC
is fairly limited, and includes cases where the IPDL struct may be directly
stored within a content process, having the nsIInputStream left unused.
By switching this serialization to DelayedStart, we can avoid performing
unnecessary streaming copies of IPC data when sending postdata streams related
to session history and document navigation, while also avoiding issues like this
coming up again due to delayed start being the default.
Differential Revision: https://phabricator.services.mozilla.com/D101804
When aDelayedStart is specified, if the created IPCStream contains an internal
IPC stream actor, an actor is used under the hood to send raw data between
processes when needed. This is usually done to reduce overhead in cases where
the target process may not use the nsIInputStream immediately, if at all.
By switching to using RemoteLazyInputStream when sending DelayedStart actors
from parent to content, the amount of data sent in the initial payload is
reduced even further, and the stream is optimized to allow sending it back to
the parent process without streaming the data through the content process again.
Normal delayed start streams are still used when sending payloads from other
processes, as RemoteLazyInputStream is only supported for nsIInputStreams
originating in the parent process.
Differential Revision: https://phabricator.services.mozilla.com/D101803
Previously, we would apply the InputStreamLengthWrapper before
DelayedStartInputStream, which meant that a stream serialized with aDelayedStart
would not correctly implement nsIInputStreamLength. By inverting the order of
these wrappers, the nsIInputStreamLength implementation is visible, without
impacting the functionality of the DelayedStartInputStream wrapper.
Differential Revision: https://phabricator.services.mozilla.com/D101802
Without the other patches in this series, this test fails with both with and
without Fission enabled, for two different reasons.
With Fission disabled, the second reload request appears as empty, due to us
being unable to rewind the postData nsIInputStream. With Fission enabled, the
second reload request causes crashes due to the nsMIMEInputStream's invariant of
requiring a seekable stream is invalidated, causing the nsICloneableInputStream
implementation to misbehave.
Differential Revision: https://phabricator.services.mozilla.com/D101800
David Parks
Ryan VanderMeulen
Eden Chuang
Andrew Osmond
Noemi Erli
Butkovits Atila
Simon Giesecke
Csoregi Natalia
Tom Ritter
Cosmin Sabou
Florian Quèze
Nika Layzell
Niklas Gögge
Jed Davis
Tim Huang
Alexandru Michis
smolnar
Chris Martin
Bogdan Tara
Jens Stutte
Mike Hommey
Jeff Muizelaar
Aaron Klotz
Gerald Squelart
M. Sirringhaus
Andreea Pavel
Eitan Isaacson
Brindusan Cristian