The documentation for AgileReference previously suggested instantiating
it within a UniquePtr. However, this isn't necessary or helpful in most
contexts.
Streamline the one place where this was done.
Differential Revision: https://phabricator.services.mozilla.com/D196366
The documentation for AgileReference previously suggested instantiating
it within a UniquePtr. However, this isn't necessary or helpful in most
contexts.
Streamline the one place where this was done.
Differential Revision: https://phabricator.services.mozilla.com/D196366
Destroying the IAudioSessionControl has concurrency issues with audio playback that require it to be done on the main thread. We have been trying to create a new AudioSessionControl on a background thread while this happens but some AudioSessionControl internals/dependencies are not thread safe. In order to avoid concurrency crashes, we destroy the old IAudioSessionControl on the main thread, then dispatch the restart to a background (MTA) thread asynchronously.
Differential Revision: https://phabricator.services.mozilla.com/D152302
A deadlock issue with our main thread audio playback handling arises when we try to destroy the AudioSessionControl from the MTA, despite it being an MTA object. We therefore dispatch its destruction to the main thread (STA) so the deadlock is impossible. In order to use it from the STA, we should wrap it in an AgileReference.
Differential Revision: https://phabricator.services.mozilla.com/D152301
Concurrent operations in the MTA make the required lifetime of the AudioSession complex. In particular, it cannot be known when/if any methods are currently queued or being executed (in particular, Start). In order to make this safe, we keep the AudioSession at least as long as XPCOM is running background threads.
This patch also removes a long-defunct state machine and does some basic code cleanup.
Differential Revision: https://phabricator.services.mozilla.com/D152300
Cleans up the interface to AudioSession and brings in line with COM best practices. Uses background threads that are implicitly MTA and asserts proper thread behavior. This also removes AudioSession's Co[Un]Initialize static analysis violations.
Differential Revision: https://phabricator.services.mozilla.com/D140741
Pointer to AudioSession object is made std::atomic to resolve crashes (bug 1755700) by atomically modifying/reading the pointer as an effort to make sure any update to the pointer is seen across other threads immediately while not using locks to maintain such concurrency and avoiding dataraces.
This patch is built upon the work done in D136377.
Differential Revision: https://phabricator.services.mozilla.com/D140741
This change is needed to avoid toolkit/components/backgroundtasks/tests/browser/browser_xpcom_graph_wait.js test failures where the nsUUIDGenerator service was loaded during ASan test runs but not non-ASan test runs (due to differences in temp profile directory paths).
Using nsID::GenerateUUIDInPlace() also avoids the overhead of instantiating the nsUUIDGenerator service.
Depends on D132866
Differential Revision: https://phabricator.services.mozilla.com/D136992
Bug 1419488 moved AudioSession shutdown to a background thread on Windows 7 because it was leading to shutdown timeouts there. Since then, audio seems to be inspiring timeouts on other versions of Windows as well. This patch extends the Windows 7 work to all versions of Windows.
Bug 1430907 is removing AudioSession from content processes. This is the only place we have seen these crashes but AudioSession is also used in the main and plugin processes, so we want this patch to preempt issues with those processes.
Differential Revision: https://phabricator.services.mozilla.com/D64465
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
This was done automatically replacing:
s/mozilla::Move/std::move/
s/ Move(/ std::move(/
s/(Move(/(std::move(/
Removing the 'using mozilla::Move;' lines.
And then with a few manual fixups, see the bug for the split series..
MozReview-Commit-ID: Jxze3adipUh
Releases the final reference to the IAudioSesionControl on a background thread in order to circumvent a hang at shutdown caused by stalled audio device interrupt handlers.
When we UnregisterAudioSessionNotification in response to an OnSessionDisconnected
message, we unintentionally decrement the refcount before restoring it. This KungFu
grips us for the duration of that operation.
This removes about 2/3 of the occurrences of nsXPIDLString in the tree. The
places where nsXPIDLStrings are null-checked are replaced with |rv| checks.
The patch also removes a couple of unused declarations from
nsIStringBundle.idl.
Note that nsStringBundle::GetStringFromNameHelper() was merged into
GetStringFromName(), because they both would have had the same signature.
Most of the names passed to nsIStringBundle::{Get,Format}StringFromUTF8Name
have one of the two following forms:
- a 16-bit C string literal, which is then converted to an 8-bit string in
order for the lookup to occur;
- an 8-bit C string literal converted to a 16-bit string, which is then
converted back to an 8-bit string in order for the lookup to occur.
This patch introduces and uses alternative methods that can take an 8-bit C
string literal, which requires changing some signatures in other methods and
functions. It replaces all C++ uses of the old methods.
The patch also changes the existing {Get,Format}StringFromName() methods so
they take an AUTF8String argument for the name instead of a wstring, because
that's nicer for JS code.
Even though there is a method for C++ code and a different one for JS code,
|binaryname| is used so that the existing method names can be used for the
common case in both languages.
The change reduces the number of NS_ConvertUTF8toUTF16 and
NS_ConvertUTF16toUTF8 conversions while running Speedometer v2 from ~270,000 to
~160,000. (Most of these conversions involved the string
"deprecatedReferrerDirective" in nsCSPParser.cpp.)
The bulk of this commit was generated with a script, executed at the top
level of a typical source code checkout. The only non-machine-generated
part was modifying MFBT's moz.build to reflect the new naming.
CLOSED TREE makes big refactorings like this a piece of cake.
# The main substitution.
find . -name '*.cpp' -o -name '*.cc' -o -name '*.h' -o -name '*.mm' -o -name '*.idl'| \
xargs perl -p -i -e '
s/nsRefPtr\.h/RefPtr\.h/g; # handle includes
s/nsRefPtr ?</RefPtr</g; # handle declarations and variables
'
# Handle a special friend declaration in gfx/layers/AtomicRefCountedWithFinalize.h.
perl -p -i -e 's/::nsRefPtr;/::RefPtr;/' gfx/layers/AtomicRefCountedWithFinalize.h
# Handle nsRefPtr.h itself, a couple places that define constructors
# from nsRefPtr, and code generators specially. We do this here, rather
# than indiscriminantly s/nsRefPtr/RefPtr/, because that would rename
# things like nsRefPtrHashtable.
perl -p -i -e 's/nsRefPtr/RefPtr/g' \
mfbt/nsRefPtr.h \
xpcom/glue/nsCOMPtr.h \
xpcom/base/OwningNonNull.h \
ipc/ipdl/ipdl/lower.py \
ipc/ipdl/ipdl/builtin.py \
dom/bindings/Codegen.py \
python/lldbutils/lldbutils/utils.py
# In our indiscriminate substitution above, we renamed
# nsRefPtrGetterAddRefs, the class behind getter_AddRefs. Fix that up.
find . -name '*.cpp' -o -name '*.h' -o -name '*.idl' | \
xargs perl -p -i -e 's/nsRefPtrGetterAddRefs/RefPtrGetterAddRefs/g'
if [ -d .git ]; then
git mv mfbt/nsRefPtr.h mfbt/RefPtr.h
else
hg mv mfbt/nsRefPtr.h mfbt/RefPtr.h
fi
Ray Kraesig