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Previously, executor nodes running in parallel worker processes didn't have access to the dsm_segment object used for parallel execution. In order to support resource management based on DSM segment lifetime, they need that. So create a ParallelWorkerContext object to hold it and pass it to all InitializeWorker functions. Author: Thomas Munro Reviewed-By: Andres Freund Discussion: https://postgr.es/m/CAEepm=2W=cOkiZxcg6qiFQP-dHUe09aqTrEMM7yJDrHMhDv_RA@mail.gmail.com
34 lines
1.1 KiB
C
34 lines
1.1 KiB
C
/*-------------------------------------------------------------------------
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*
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* nodeSort.h
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*
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*
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*
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* Portions Copyright (c) 1996-2017, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* src/include/executor/nodeSort.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef NODESORT_H
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#define NODESORT_H
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#include "access/parallel.h"
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#include "nodes/execnodes.h"
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extern SortState *ExecInitSort(Sort *node, EState *estate, int eflags);
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extern void ExecEndSort(SortState *node);
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extern void ExecSortMarkPos(SortState *node);
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extern void ExecSortRestrPos(SortState *node);
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extern void ExecReScanSort(SortState *node);
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/* parallel instrumentation support */
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extern void ExecSortEstimate(SortState *node, ParallelContext *pcxt);
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extern void ExecSortInitializeDSM(SortState *node, ParallelContext *pcxt);
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extern void ExecSortReInitializeDSM(SortState *node, ParallelContext *pcxt);
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extern void ExecSortInitializeWorker(SortState *node, ParallelWorkerContext *pwcxt);
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extern void ExecSortRetrieveInstrumentation(SortState *node);
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#endif /* NODESORT_H */
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