The finalizer normally never gets called while a reference is strong.
However, during environment shutdown all finalizers must get called. In
order to unify the deferring behavior with that of a regular
finalization, we must force the reference to be weak when we call its
finalizer during environment shutdown.

Fixes: #37236
Co-authored-by: Chengzhong Wu <legendecas@gmail.com>
PR-URL: #37303
Backport-PR-URL: #42512
Reviewed-By: Chengzhong Wu <legendecas@gmail.com>
Reviewed-By: Michael Dawson <midawson@redhat.com>

A gc may happen during environment teardown. Thus, during finalization
initiated by environment teardown we must remove the V8 finalizer
before calling the Node-API finalizer.

Fixes: #37236
PR-URL: #37616
Backport-PR-URL: #42512
Reviewed-By: Chengzhong Wu <legendecas@gmail.com>
Reviewed-By: Michael Dawson <midawson@redhat.com>

Refs: nodejs/node-addon-api#906
Refs: #37616

Fix crash introduced by #37616

Signed-off-by: Michael Dawson <mdawson@devrus.com>

PR-URL: #37876
Backport-PR-URL: #42512
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

As the cancellation of second pass callbacks are not reachable from the
current v8 API, and the second pass callbacks are scheduled with
NodePlatform's task runner, we have to ensure that the weak parameter
holds indirect access to the v8impl::Reference object so that the object
can be destroyed on addon env teardown before the whole node env is able
to shutdown.

PR-URL: #38000
Backport-PR-URL: #42512
Reviewed-By: Michael Dawson <midawson@redhat.com>
Reviewed-By: Gabriel Schulhof <gabriel.schulhof@intel.com>

PR-URL: #38250
Backport-PR-URL: #42512
Fixes: #38040
Reviewed-By: Beth Griggs <bgriggs@redhat.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>

Refs: nodejs/node-addon-api#906

Ensure that finalization is not defered during shutdown.
The env for the addon is deleted immediately after
iterating the list of finalizers to be run. Defering
causes crashes as the finalization uses the already
deleted env.

Signed-off-by: Michael Dawson <mdawson@devrus.com>

PR-URL: #38492
Backport-PR-URL: #42512
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Chengzhong Wu <legendecas@gmail.com>
Reviewed-By: Gabriel Schulhof <gabrielschulhof@gmail.com>

PR #38000 added
indirection so that we could stop finalization in
cases where it had been scheduled in a second
pass callback but we were doing it in advance in
environment teardown.

Unforunately we missed that the code which tries
to clear the second pass parameter checked if
the pointer to the parameter (_secondPassParameter)
was nullptr and that when the second pass callback
was scheduled we set _secondPassParameter to nullptr
in order to avoid it being deleted outside of the second
pass callback. The net result was that we
would not clear the _secondPassParameter contents
and failed to avoid the Finalization in the second pass
callback.

This PR adds an additional boolean for deciding if
the secondPassParameter should be deleted outside
of the second pass callback instead of setting
secondPassParameter to nullptr thus avoiding the
conflict between the 2 ways it was being used.

See the discussion starting at:
#38273 (comment)
for how this was discovered on OSX while trying to
upgrade to a new V8 version.

Signed-off-by: Michael Dawson <mdawson@devrus.com>

PR-URL: #38899
Backport-PR-URL: #42512
Reviewed-By: Chengzhong Wu <legendecas@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

PR-URL: #38970
Backport-PR-URL: #42512
Reviewed-By: Michael Dawson <midawson@redhat.com>
Reviewed-By: Gabriel Schulhof <gabrielschulhof@gmail.com>