Method shutdown

fdbserver/VersionedBTree.actor.cpp:7773–7805

	}

	ACTOR void shutdown(KeyValueStoreRedwood* self, bool dispose) {
		TraceEvent(SevInfo, "RedwoodShutdown").detail("Filename", self->m_filename).detail("Dispose", dispose);

		// In simulation, if the instance is being disposed of then sometimes run destructive sanity check.
		if (g_network->isSimulated() && dispose && BUGGIFY) {
			// Only proceed if the last commit is a success, but don't throw if it's not because shutdown
			// should not throw.
			wait(ready(self->m_lastCommit));
			if (!self->m_lastCommit.isError()) {
				// Run the destructive sanity check, but don't throw.
				ErrorOr<Void> err = wait(errorOr(self->m_tree->clearAllAndCheckSanity()));
				// If the test threw an error, it must be an injected fault or something has gone wrong.
				ASSERT(!err.isError() || err.getError().isInjectedFault());
			}
		} else {
			// The KVS user shouldn't be holding a commit future anymore so self shouldn't either.
			self->m_lastCommit = Void();
		}

		if (self->m_error.canBeSet()) {
			self->m_error.sendError(actor_cancelled()); // Ideally this should be shutdown_in_progress
		}
		self->m_init.cancel();
		Future<Void> closedFuture = self->m_tree->onClosed();
		if (dispose)
			self->m_tree->dispose();
		else
			self->m_tree->close();
		wait(closedFuture);
		self->m_closed.send(Void());
		TraceEvent(SevInfo, "RedwoodShutdownComplete").detail("Filename", self->m_filename).detail("Dispose", dispose);
		delete self;
	}

	void close() override { shutdown(this, false); }