Method internalDropDatabase

src/jrd/jrd.cpp:3411–3570

void JAttachment::internalDropDatabase(CheckStatusWrapper* user_status)
{
/**************************************
 *
 *	i s c _ d r o p _ d a t a b a s e
 *
 **************************************
 *
 * Functional description
 *	Close down and purge a database.
 *
 **************************************/
	try
	{
		EngineContextHolder tdbb(user_status, this, FB_FUNCTION, AttachmentHolder::ATT_LOCK_ASYNC);
		Attachment* attachment = getHandle();
		Database* const dbb = tdbb->getDatabase();

		try
		{
			EnsureUnlock<StableAttachmentPart::Sync, NotRefCounted> guard(*(getStable()->getSync()), FB_FUNCTION);
			if (!guard.tryEnter())
			{
				status_exception::raise(Arg::Gds(isc_attachment_in_use));
			}

			// Prepare to set ODS to 0
   			WIN window(HEADER_PAGE_NUMBER);
			Ods::header_page* header = NULL;
			XThreadEnsureUnlock threadGuard(dbb->dbb_thread_mutex, FB_FUNCTION);

			try
			{
				Sync sync(&dbb->dbb_sync, "JAttachment::dropDatabase()");

				if (attachment->att_in_use || attachment->att_use_count)
					status_exception::raise(Arg::Gds(isc_attachment_in_use));

				const PathName& file_name = attachment->att_filename;

				SCL_check_database(tdbb, SCL_drop);

				if (attachment->att_flags & ATT_shutdown)
				{
					const ISC_STATUS err = getStable()->getShutError();

					if (dbb->dbb_ast_flags & DBB_shutdown)
						ERR_post(Arg::Gds(isc_shutdown) << Arg::Str(file_name));

					if (err)
						ERR_post(Arg::Gds(isc_att_shutdown) << Arg::Gds(err));

					ERR_post(Arg::Gds(isc_att_shutdown));
				}

				// try to block special threads before taking exclusive lock on database
				if (!threadGuard.tryEnter())
				{