Function blocking_ast_shadowing

src/jrd/sdw.cpp:1174–1210

static int blocking_ast_shadowing(void* ast_object)
{
/**************************************
 *
 *	b l o c k i n g _ a s t _ s h a d o w i n g
 *
 **************************************
 *
 * Functional description
 *	A blocking AST has been issued to give up
 *	the lock on the shadowing semaphore.
 *	Do so after flagging the need to check for
 *	new shadow files before doing the next physical write.
 *
 **************************************/
	Database* const dbb = static_cast<Database*>(ast_object);

	try
	{
		AsyncContextHolder tdbb(dbb, FB_FUNCTION);

		SyncLockGuard guard(&dbb->dbb_shadow_sync, SYNC_EXCLUSIVE, "blocking_ast_shadowing");

		dbb->dbb_ast_flags |= DBB_get_shadows;

		Lock* const lock = dbb->dbb_shadow_lock;

		if (LCK_read_data(tdbb, lock) & SDW_rollover)
			update_dbb_to_sdw(dbb);

		LCK_release(tdbb, lock);
	}
	catch (const Firebird::Exception&)
	{} // no-op

	return 0;
}


static bool check_for_file(thread_db* tdbb, const SCHAR* name, USHORT length)