mirror of
https://github.com/FirebirdSQL/firebird.git
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116 lines
2.8 KiB
C++
116 lines
2.8 KiB
C++
/*
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* The contents of this file are subject to the Initial
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* Developer's Public License Version 1.0 (the "License");
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* you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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* http://www.ibphoenix.com/main.nfs?a=ibphoenix&page=ibp_idpl.
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*
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* Software distributed under the License is distributed AS IS,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied.
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* See the License for the specific language governing rights
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* and limitations under the License.
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*
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* The Original Code was created by Dmitry Yemanov
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* for the Firebird Open Source RDBMS project.
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*
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* Copyright (c) 2006 Dmitry Yemanov <dimitr@users.sf.net>
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* and all contributors signed below.
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*
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* All Rights Reserved.
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* Contributor(s): ______________________________________.
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* Adriano dos Santos Fernandes
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*/
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#include "firebird.h"
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#include "ids.h"
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#include "../jrd/constants.h"
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#include "../common/gdsassert.h"
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#include "../jrd/jrd.h"
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#include "../common/dsc.h"
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#include "../jrd/exe.h"
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#include "../jrd/ini.h"
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#include "../jrd/req.h"
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#include "../jrd/rse.h"
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#include "../jrd/val.h"
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#include "../jrd/cmp_proto.h"
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#include "../jrd/err_proto.h"
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#include "../jrd/evl_proto.h"
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#include "../jrd/lck_proto.h"
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#include "../jrd/met_proto.h"
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#include "../jrd/mov_proto.h"
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#include "../jrd/vio_proto.h"
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#include "../jrd/Monitoring.h"
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#include "../jrd/RecordBuffer.h"
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#include "../jrd/VirtualTable.h"
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using namespace Jrd;
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using namespace Firebird;
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void VirtualTable::erase(thread_db* tdbb, record_param* rpb)
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{
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SET_TDBB(tdbb);
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Database* dbb = tdbb->getDatabase();
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fb_assert(dbb);
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jrd_rel* relation = rpb->rpb_relation;
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fb_assert(relation);
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dsc desc;
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lck_t lock_type;
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if (relation->rel_id == rel_mon_attachments)
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{
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// Get attachment id
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if (!EVL_field(relation, rpb->rpb_record, f_mon_att_id, &desc))
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return;
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// Ignore attempt to stop system attachment
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dsc sysFlag;
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if (EVL_field(relation, rpb->rpb_record, f_mon_att_sys_flag, &sysFlag) &&
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MOV_get_long(tdbb, &sysFlag, 0) != 0)
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{
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return;
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}
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lock_type = LCK_attachment;
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}
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else if (relation->rel_id == rel_mon_statements)
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{
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// Get attachment id
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if (!EVL_field(relation, rpb->rpb_record, f_mon_stmt_att_id, &desc))
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return;
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lock_type = LCK_cancel;
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}
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else
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{
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ERR_post(Arg::Gds(isc_read_only));
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return;
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}
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const SINT64 id = MOV_get_int64(tdbb, &desc, 0);
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// Post a blocking request
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Lock temp_lock(tdbb, sizeof(SINT64), lock_type);
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temp_lock.setKey(id);
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ThreadStatusGuard temp_status(tdbb);
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if (LCK_lock(tdbb, &temp_lock, LCK_EX, -1))
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LCK_release(tdbb, &temp_lock);
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}
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void VirtualTable::modify(thread_db* /*tdbb*/, record_param* /*org_rpb*/, record_param* /*new_rpb*/)
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{
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ERR_post(Arg::Gds(isc_read_only));
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}
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void VirtualTable::store(thread_db* /*tdbb*/, record_param* /*rpb*/)
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{
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ERR_post(Arg::Gds(isc_read_only));
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}
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