mirror of
https://github.com/FirebirdSQL/firebird.git
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87 lines
2.3 KiB
C++
87 lines
2.3 KiB
C++
/*
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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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*/
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#ifndef JRD_FUNCTION_H
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#define JRD_FUNCTION_H
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#include "../jrd/Routine.h"
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#include "../common/classes/array.h"
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#include "../common/dsc.h"
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#include "../common/classes/NestConst.h"
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#include "../jrd/val.h"
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#include "../dsql/Nodes.h"
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namespace Jrd
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{
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class ValueListNode;
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class Function : public Routine
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{
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static const char* const EXCEPTION_MESSAGE;
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public:
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static Function* lookup(thread_db* tdbb, USHORT id, bool return_deleted, bool noscan, USHORT flags);
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static Function* lookup(thread_db* tdbb, const Firebird::QualifiedName& name, bool noscan);
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void releaseLocks(thread_db* tdbb);
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explicit Function(MemoryPool& p)
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: Routine(p),
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fun_entrypoint(NULL),
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fun_inputs(0),
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fun_return_arg(0),
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fun_temp_length(0),
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fun_exception_message(p),
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fun_deterministic(false),
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fun_external(NULL)
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{
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}
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static Function* loadMetadata(thread_db* tdbb, USHORT id, bool noscan, USHORT flags);
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static int blockingAst(void*);
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public:
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virtual int getObjectType() const
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{
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return obj_udf;
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}
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virtual SLONG getSclType() const
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{
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return SCL_object_function;
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}
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virtual bool checkCache(thread_db* tdbb) const;
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virtual void clearCache(thread_db* tdbb);
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public:
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int (*fun_entrypoint)(); // function entrypoint
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USHORT fun_inputs; // input arguments
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USHORT fun_return_arg; // return argument
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ULONG fun_temp_length; // temporary space required
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Firebird::string fun_exception_message; // message containing the exception error message
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bool fun_deterministic;
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const ExtEngineManager::Function* fun_external;
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};
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}
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#endif // JRD_FUNCTION_H
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