This aims at speeding up DELETE FROM moz_places like queries.
The primary reason of slowness is the FOR EACH ROW trigger that takes care of updating the moz_hosts table when places are removed.
Unfortunately Sqlite doesn't support FOR EACH STATEMENT triggers, that means the trigger will hit multiple times for pages in the same host.
The patch introduces an additional temp table to accumulate hosts during a delete, then a trigger takes care of updating moz_hosts only once per touched host, rather than once per removed place.
MozReview-Commit-ID: BlJRLQZoC07
The problem is due to sanitization happening too late in the shutdown cycle.
The Sanitizer depends on Places shutdown, that recently moved to async shutdown.
That change caused shutdown to happen completely at profile-before-change, unfortunately
during that phase it's impossible to predict which services are already shutdown.
The patch restores the previous Places shutdown procedure, thus clients are notified
earlier, during profile-change-teardown.
Additional meaningful changes:
* Fixes FX_SANITIZE_TOTAL telemetry to properly count total time taken by sanitize.
* Makes each cleanup operation isolated from other errors to try cleaning up as most as possible.
* In case of multiple sanitization sub steps, each step is isolated by a try/catch, the last seen exception is reported upstream.
* Makes FX_SANITIZE_HISTORY actually measure history, not other random stuff.
* Removes TOPIC_SIMULATE_PLACES_MUST_CLOSE_1 since we can now just use profile-change-teardown for shutdown phase 1.
MozReview-Commit-ID: HroLvbi25IC
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
The bulk of this commit was generated by running:
run-clang-tidy.py \
-checks='-*,llvm-namespace-comment' \
-header-filter=^/.../mozilla-central/.* \
-fix
