The SetOps() call is no longer necessary now that PLDHashTable has a move
constructor.
This change originally landed in one of the patches from bug 1161377, which was
subsequently backed out.
Various parts of the first half of BeginCollection() can start an incremental GC.
This is bad because running the GC and CC at the same time can cause the CC to end
up with pointers to dead JS objects.
To avoid this, we finish any incremental GC in progress in BeginCollection. This
is slow, but hopefully it is rare.
This changes the way nsMemoryReporterManger handles child processes;
instead of using an observer message and trying to keep a count of child
processes expected to answer, it directly iterates a copy of the list
of content processes and explicitly handles children which exit before
their reports start.
Note that GC/CC logs still run at full concurrency, and that no child
reports start until the parent is finished (see bug 1151597) regardless
of concurrency limit.
This changes the way nsMemoryReporterManger handles child processes;
instead of using an observer message and trying to keep a count of child
processes expected to answer, it directly iterates a copy of the list
of content processes and explicitly handles children which exit before
their reports start.
Note that GC/CC logs still run at full concurrency, and that no child
reports start until the parent is finished (see bug 1151597) regardless
of concurrency limit.
This fixes the following problems with PLDHashTable::operator=:
- It doesn't handle self-assigments.
- It leaks the memory used by the assigned-to table.
- It doesn't leave the assigned-from table in a safely destructable state.
This patch converts easy cases, i.e. where the PL_DHashTableInit() call occurs
in a constructor and the PL_DHashTableFinish() call occurs in a destructor.
The destructor is "opt-in" -- there's a flag that makes it a no-op unless the
table was initialized with the initializing constructor. This will allow us to
incrementally convert existing tables from manual to automatic
initialization/finalization. This is important because some of the existing
uses are tricky (impossible?) to convert to the automatic style.
They are kept around for the sake of the standalone glue, which is used
for e.g. webapprt, which doesn't have direct access to jemalloc, and thus
still needs a wrapper to go through the xpcom function list and get to
jemalloc from there.
It's no longer needed now that entry storage isn't allocated there. (The other
possible causes of failures in that function are less interesting and simply
crashing is a reasonable thing to do for them.)
This also makes PL_DNewHashTable() infallible, so I removed some
now-unnecessary checks of its result.
