44 lines
1.7 KiB
C++
44 lines
1.7 KiB
C++
/*
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* Copyright (c) 2020 Huawei Technologies Co.,Ltd.
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*
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* openGauss is licensed under Mulan PSL v2.
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* You can use this software according to the terms and conditions of the Mulan PSL v2.
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* You may obtain a copy of Mulan PSL v2 at:
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*
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* http://license.coscl.org.cn/MulanPSL2
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*
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PSL v2 for more details.
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* ---------------------------------------------------------------------------------------
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*
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* fencedudf.h
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* The header file of implementing to run UDF in fenced mode
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*
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* The core design is to implement a RPC server and client, run udf in RPC server.
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* User defined C function is not safe, because if the UDF has some bugs which can
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* cause coredump or memory leak in gaussdb, So we need provide an fenced mode for udf.
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* When we run fenecd udf, it will run in RPC server. If UDF cause coredump, there is not
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* any impact for gaussdb process.
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*
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*
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* IDENTIFICATION
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* src/include/postmaster/fencedudf.h
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*
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* ---------------------------------------------------------------------------------------
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*/
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#ifndef FENCEDUDF_H
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#define FENCEDUDF_H
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#include "access/htup.h"
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extern pid_t StartUDFMaster();
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extern void FencedUDFMasterMain(int argc, char* argv[]);
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extern bool RPCInitFencedUDFIfNeed(Oid functionId, FmgrInfo* finfo, HeapTuple procedureTuple);
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template <bool batchMode>
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extern Datum RPCFencedUDF(FunctionCallInfo fcinfo);
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extern void InitFuncCallUDFInfo(FunctionCallInfoData* finfo, int batchRows, int argN, bool batchMode);
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#endif
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