In practice this shouldn't substantially change the behavior, but
it gets around being UB, and it shouldn't really cost us in terms
of performance. The alternative would be adding it to the TSAN
whitelist, which feels worse.
Differential Revision: https://phabricator.services.mozilla.com/D72015
CLOSED TREE
Backed out changeset 939611f65438 (bug 1630655)
Backed out changeset 2e05e81cc858 (bug 1630655)
Backed out changeset bfb074351550 (bug 1630655)
In practice this shouldn't substantially change the behavior, but
it gets around being UB, and it shouldn't really cost us in terms
of performance. The alternative would be adding it to the TSAN
whitelist, which feels worse.
Differential Revision: https://phabricator.services.mozilla.com/D72015
TabGroup never really made any difference in which thread something go
dispatched to. This was the intended use, but development of TabGroups
with abstract main threads never made it that far. The good thing is
that thish makes it safe to also remove to the SystemGroup and instead
switch all SystemGroup dispatches to dispatches to main thread.
Timers for setTimeout and workers were the sole users of wrapped and
throttled event targets, that those throttled queues have been moved
to the BrowsingContextGroup and are now accessed explicitly.
The SchedulerEventTarget has been removed, since there are no longer a
separate event target for every TaskCategory. Instead a
LabellingEventTarget has been added to DocGroup to handle the case
where an event is dispatched do DocGroup or when an AbstractThread is
created using a DocGroup. This means that we'll actually label more
events correctly with the DocGroup that they belong to.
DocGroups have also been moved to BrowsingContextGroup.
Depends on D67636
Differential Revision: https://phabricator.services.mozilla.com/D65936
--HG--
extra : moz-landing-system : lando
This is being added to facilitate moving generation of the update URL to Rust (Bug 1567286). Once that has been completed, we should be able to remove the update URL from its current location in firefox.js so that it is not being duplicated in application.ini.
Differential Revision: https://phabricator.services.mozilla.com/D43300
--HG--
extra : moz-landing-system : lando
This works on all platforms with the exception of Linux where we remove the
exception handler only if the sandbox is disabled. With the sandbox enabled we
would have to whitelist sigaltstack() which breakpad uses to remove the
alternate signal stack which is not worth the fuss.
Besides this patch refactors the code that sets and unsets the exception
handler, cutting down on the duplication:
* The XRE_UnsetRemoteExceptionHandler() call is removed from XULAppAPI.h since it
was no longer used
* The duplicate checks for the special strings used to disable the remote exception
handler have been removed from CrashReporter::UnsetRemoteExceptionHandler()
leaving them in the calling code
* The SetRemoteExceptionHandler() function was consolidated into only one
piece of code with only one non-platform-specific shared prototype
* Some additional code was factored out to improve the readability
These changes pave the way both for bug 1614933 and for the oxidation of the
exception handler code.
Differential Revision: https://phabricator.services.mozilla.com/D67213
--HG--
extra : moz-landing-system : lando
This is already done for the outer nsJAR, but it wasn't done for the inner nsJAR.
(The omnijar is a nested zip archive on Android: the outer archive is the APK and the inner is the omnijar file.)
So we were re-using the file mapping but not the result of the uncompression.
Differential Revision: https://phabricator.services.mozilla.com/D63970
--HG--
extra : moz-landing-system : lando
This moves the late write checking forward to before xpcom-shutdown-threads
in Nightly, and it turns it on for after the last cycle collection on
beta/release.
Differential Revision: https://phabricator.services.mozilla.com/D63215
--HG--
extra : moz-landing-system : lando
This removes the need for explicit #ifdef NS_BUILD_REFCNT_LOGGING without
introducing user-defined destructors when it is not defined.
Also, some uses of virtual for declaring destructors are replaced by the
appropriate override declaration through these changes.
Differential Revision: https://phabricator.services.mozilla.com/D62604
--HG--
extra : moz-landing-system : lando
This removes the need for explicit #ifdef NS_BUILD_REFCNT_LOGGING without
introducing user-defined destructors when it is not defined.
Also, some uses of virtual for declaring destructors are replaced by the
appropriate override declaration through these changes.
Differential Revision: https://phabricator.services.mozilla.com/D62604
--HG--
extra : moz-landing-system : lando
GENERATED_FILES now defaults to python3 unless py2=True is specified as
an argument. All existing GENERATED_FILES scripts and GeneratedFile
templates have the py2=True attribute added, so this patch should
effectively be a no-op.
Going forward, individual scripts can be converted to python3 and their
corresponding py2=True attribute can be deleted. In effect, this patch
will be backed out in pieces until all scripts run in python3, at which
point the py2 attribute itself can be removed.
Differential Revision: https://phabricator.services.mozilla.com/D60919
--HG--
extra : moz-landing-system : lando
GENERATED_FILES now defaults to python3 unless py2=True is specified as
an argument. All existing GENERATED_FILES scripts and GeneratedFile
templates have the py2=True attribute added, so this patch should
effectively be a no-op.
Going forward, individual scripts can be converted to python3 and their
corresponding py2=True attribute can be deleted. In effect, this patch
will be backed out in pieces until all scripts run in python3, at which
point the py2 attribute itself can be removed.
Differential Revision: https://phabricator.services.mozilla.com/D60919
--HG--
extra : moz-landing-system : lando
GENERATED_FILES now defaults to python3 unless py2=True is specified as
an argument. All existing GENERATED_FILES scripts and GeneratedFile
templates have the py2=True attribute added, so this patch should
effectively be a no-op.
Going forward, individual scripts can be converted to python3 and their
corresponding py2=True attribute can be deleted. In effect, this patch
will be backed out in pieces until all scripts run in python3, at which
point the py2 attribute itself can be removed.
Differential Revision: https://phabricator.services.mozilla.com/D60919
--HG--
extra : moz-landing-system : lando
Since we've decoupled the writing of the StartupCache from the freeing
of the StartupCache's tables (which takes nontrivial time), this patch
moves the StartupCache's destructor later in shutdown so it will be
skipped in the early _exit(0) efforts. There is a remaining
WaitOnWriteThread in the StartupCache's destructor, but this is a
minor sanity check to avoid use-after-frees in the write thread during
shutdown. In general it won't matter as we already wait for the write
thread in the xpcom-shutdown observer, and if we shut down during write,
the system is set up to be okay with that (because it already happens).
Differential Revision: https://phabricator.services.mozilla.com/D62295
--HG--
extra : source : d79f1d283acde1a971fe0e5e6f1a8db075f8589a
extra : histedit_source : 32a2b4fec1fcf35960155b0f4280a38bcb54ec19
Since we've decoupled the writing of the StartupCache from the freeing
of the StartupCache's tables (which takes nontrivial time), this patch
moves the StartupCache's destructor later in shutdown so it will be
skipped in the early _exit(0) efforts. There is a remaining
WaitOnWriteThread in the StartupCache's destructor, but this is a
minor sanity check to avoid use-after-frees in the write thread during
shutdown. In general it won't matter as we already wait for the write
thread in the xpcom-shutdown observer, and if we shut down during write,
the system is set up to be okay with that (because it already happens).
Differential Revision: https://phabricator.services.mozilla.com/D62295
--HG--
extra : moz-landing-system : lando
Since we've decoupled the writing of the StartupCache from the freeing
of the StartupCache's tables (which takes nontrivial time), this patch
moves the StartupCache's destructor later in shutdown so it will be
skipped in the early _exit(0) efforts. There is a remaining
WaitOnWriteThread in the StartupCache's destructor, but this is a
minor sanity check to avoid use-after-frees in the write thread during
shutdown. In general it won't matter as we already wait for the write
thread in the xpcom-shutdown observer, and if we shut down during write,
the system is set up to be okay with that (because it already happens).
Depends on D62294
Differential Revision: https://phabricator.services.mozilla.com/D62295
--HG--
extra : moz-landing-system : lando
Every day clang's warnings continue to amaze me. As does our ability to trigger them.
I'm assuming that this line was meant to go within the scope of the `if`, because if it were outside the scope, then we'd be duplicating the previous `fprintf`.
Differential Revision: https://phabricator.services.mozilla.com/D61835
--HG--
extra : moz-landing-system : lando
I originally had this as a few patches, but the work to fix test
failures and get the whole thing into a complete working state
quickly tangled them up. Apologies for that. To summarize what's
going on here, however:
- We introduce two prefs: shutdown.fastShutdownStage and
shutdown.lateWriteChecksStage. The latter pref is set to 1, which
will leave the existing late write checking behavior unchanged.
However, we introduce this pref to make it simpler in the future
to bump the late write checks window earlier in the shutdown cycle.
- We introduce an AppShutdown class, which will house static methods
and a small amount of state for unifying some shutdown logic. Most
importantly, it will now manage the state for app initiated restarts,
as well as the logic for performing a safe fast shutdown.
- We refactored the existing restart code to call into the new
AppShutdown file, so that if we are configured to actually perform
a fast shutdown, we will be able to run the necessary restart logic
immediately before doing so. Previously, the restart logic occurred
later in the shutdown cycle than our late write checking, meaning
if we were to simply exit the process at that point in time, we
would never run the restart coe.
- Lastly, we updated two locations which called TerminateProcess and/or
_exit(0) to call into the AppShutdown method (DoFastShutdown).
Differential Revision: https://phabricator.services.mozilla.com/D59196
--HG--
extra : moz-landing-system : lando
nsIMutable is used only by DOM Blob/File. But Blobs are immutable by spec.
FileBlobImpl has a couple of lazy member values, but those are called when
the object is cloned in order to be sent to a different thread/process.
Differential Revision: https://phabricator.services.mozilla.com/D58946
--HG--
extra : moz-landing-system : lando
nsIMutable is used only by DOM Blob/File. But Blobs are immutable by spec.
FileBlobImpl has a couple of lazy member values, but those are called when
the object is cloned in order to be sent to a different thread/process.
Differential Revision: https://phabricator.services.mozilla.com/D58716
--HG--
extra : moz-landing-system : lando
This converts straightforward `nsAutoPtr` usage over to `UniquePtr`.
`nsClassHashtable` is left alone for now as that will have a larger impact.
`nsThread` is left alone for now as it has non-trivial ownership concepts.
Differential Revision: https://phabricator.services.mozilla.com/D58284
--HG--
extra : moz-landing-system : lando
This removes various unused `#include "nsAutoPtr.h"` in `xpcom/`. Additionally
adds a few includes to the media stack.
Differential Revision: https://phabricator.services.mozilla.com/D58282
--HG--
extra : moz-landing-system : lando
The inclusions were removed with the following very crude script and the
resulting breakage was fixed up by hand. The manual fixups did either
revert the changes done by the script, replace a generic header with a more
specific one or replace a header with a forward declaration.
find . -name "*.idl" | grep -v web-platform | grep -v third_party | while read path; do
interfaces=$(grep "^\(class\|interface\).*:.*" "$path" | cut -d' ' -f2)
if [ -n "$interfaces" ]; then
if [[ "$interfaces" == *$'\n'* ]]; then
regexp="\("
for i in $interfaces; do regexp="$regexp$i\|"; done
regexp="${regexp%%\\\|}\)"
else
regexp="$interfaces"
fi
interface=$(basename "$path")
rg -l "#include.*${interface%%.idl}.h" . | while read path2; do
hits=$(grep -v "#include.*${interface%%.idl}.h" "$path2" | grep -c "$regexp" )
if [ $hits -eq 0 ]; then
echo "Removing ${interface} from ${path2}"
grep -v "#include.*${interface%%.idl}.h" "$path2" > "$path2".tmp
mv -f "$path2".tmp "$path2"
fi
done
fi
done
Differential Revision: https://phabricator.services.mozilla.com/D55444
--HG--
extra : moz-landing-system : lando
This patch make changes of Gecko infrastrutures to run a fork server
process.
- ForkServerLauncher is a component, which creates a fork server
process at XPCOM startup.
- nsBrowserApp.cpp and related files have been chagned to start a
fork server in a process.
- Logging and nsTraceRefcnt were changed to make it work with the
fork server.
Depends on D46883
Differential Revision: https://phabricator.services.mozilla.com/D46884
--HG--
extra : moz-landing-system : lando
Bob Owen
Doug Thayer
Bobby Holley
Peter Van der Beken
Mihai Alexandru Michis
Emma Malysz
Noemi Erli
Marco Bonardo
Razvan Maries
Andreas Farre
Sylvestre Ledru
Kirk Steuber
Bas Schouten
Dzmitry Malyshau
Gabriele Svelto
Markus Stange
Mike Shal
Csoregi Natalia
Simon Giesecke
Dorel Luca
Kershaw Chang
Cosmin Sabou
Brindusan Cristian
shindli
David Major
Andrea Marchesini
Eric Rahm
Thinker Li