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105 lines
3.4 KiB
C++
105 lines
3.4 KiB
C++
/*
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* PROGRAM: JRD Access Method
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* MODULE: vio_proto.h
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* DESCRIPTION: Prototype header file for vio.cpp
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*
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* The contents of this file are subject to the Interbase Public
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* License Version 1.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy
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* of the License at http://www.Inprise.com/IPL.html
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*
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* Software distributed under the License is distributed on an
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* "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express
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* or implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code was created by Inprise Corporation
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* and its predecessors. Portions created by Inprise Corporation are
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* Copyright (C) Inprise Corporation.
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*
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* All Rights Reserved.
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* Contributor(s): ______________________________________.
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* 2002.10.21 Nickolay Samofatov: Added support for explicit pessimistic locks
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* 2002.10.29 Nickolay Samofatov: Added support for savepoints
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*/
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#ifndef JRD_VIO_PROTO_H
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#define JRD_VIO_PROTO_H
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namespace Jrd {
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class jrd_rel;
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class jrd_tra;
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class Record;
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class RecordSource;
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struct record_param;
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class Savepoint;
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class Format;
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class TraceSweepEvent;
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}
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void VIO_backout(Jrd::thread_db*, Jrd::record_param*, const Jrd::jrd_tra*);
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bool VIO_chase_record_version(Jrd::thread_db*, Jrd::record_param*,
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Jrd::jrd_tra*, MemoryPool*, bool);
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void VIO_copy_record(Jrd::thread_db*, Jrd::record_param*, Jrd::record_param*);
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void VIO_data(Jrd::thread_db*, Jrd::record_param*, MemoryPool*);
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void VIO_erase(Jrd::thread_db*, Jrd::record_param*, Jrd::jrd_tra*);
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void VIO_fini(Jrd::thread_db*);
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bool VIO_garbage_collect(Jrd::thread_db*, Jrd::record_param*, const Jrd::jrd_tra*);
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Jrd::Record* VIO_gc_record(Jrd::thread_db*, Jrd::jrd_rel*);
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bool VIO_get(Jrd::thread_db*, Jrd::record_param*, Jrd::jrd_tra*, MemoryPool*);
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bool VIO_get_current(Jrd::thread_db*, Jrd::record_param*, Jrd::jrd_tra*,
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MemoryPool*, bool, bool&);
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void VIO_init(Jrd::thread_db*);
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void VIO_merge_proc_sav_points(Jrd::thread_db*, Jrd::jrd_tra*, Jrd::Savepoint**);
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bool VIO_writelock(Jrd::thread_db*, Jrd::record_param*, Jrd::jrd_tra*);
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void VIO_modify(Jrd::thread_db*, Jrd::record_param*, Jrd::record_param*, Jrd::jrd_tra*);
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bool VIO_next_record(Jrd::thread_db*, Jrd::record_param*, Jrd::jrd_tra*, MemoryPool*, bool);
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Jrd::Record* VIO_record(Jrd::thread_db*, Jrd::record_param*, const Jrd::Format*, MemoryPool*);
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void VIO_refetch_record(Jrd::thread_db*, Jrd::record_param*, Jrd::jrd_tra*);
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void VIO_start_save_point(Jrd::thread_db*, Jrd::jrd_tra*);
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void VIO_store(Jrd::thread_db*, Jrd::record_param*, Jrd::jrd_tra*);
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bool VIO_sweep(Jrd::thread_db*, Jrd::jrd_tra*, Jrd::TraceSweepEvent*);
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void VIO_verb_cleanup(Jrd::thread_db*, Jrd::jrd_tra*);
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IPTR VIO_savepoint_large(const Jrd::Savepoint*, IPTR);
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void VIO_temp_cleanup(Jrd::jrd_tra*);
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namespace Jrd
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{
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// Starts a savepoint and rollback it in destructor if release() is not called.
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class AutoSavePoint
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{
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public:
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AutoSavePoint(thread_db* tdbb, jrd_tra* aTransaction);
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~AutoSavePoint();
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void release()
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{
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released = true;
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}
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private:
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jrd_tra* transaction;
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bool released;
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};
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class StableCursorSavePoint
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{
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public:
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StableCursorSavePoint(thread_db* tdbb, jrd_tra* transaction, bool start);
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~StableCursorSavePoint()
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{
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release();
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}
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void release();
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private:
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thread_db* m_tdbb;
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jrd_tra* m_tran;
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SLONG m_number;
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};
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}
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#endif // JRD_VIO_PROTO_H
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