nodeCustom.h

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/* ------------------------------------------------------------------------
 *
 * nodeCustom.h
 *
 * prototypes for CustomScan nodes
 *
 * Portions Copyright (c) 1996-2024, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * ------------------------------------------------------------------------
 */
#ifndef NODECUSTOM_H
#define NODECUSTOM_H
 
#include "access/parallel.h"
#include "nodes/execnodes.h"
 
/*
 * General executor code
 */
extern CustomScanState *ExecInitCustomScan(CustomScan *cscan,
                                           EState *estate, int eflags);
extern void ExecEndCustomScan(CustomScanState *node);
 
extern void ExecReScanCustomScan(CustomScanState *node);
extern void ExecCustomMarkPos(CustomScanState *node);
extern void ExecCustomRestrPos(CustomScanState *node);
 
/*
 * Parallel execution support
 */
extern void ExecCustomScanEstimate(CustomScanState *node,
                                   ParallelContext *pcxt);
extern void ExecCustomScanInitializeDSM(CustomScanState *node,
                                        ParallelContext *pcxt);
extern void ExecCustomScanReInitializeDSM(CustomScanState *node,
                                          ParallelContext *pcxt);
extern void ExecCustomScanInitializeWorker(CustomScanState *node,
                                           ParallelWorkerContext *pwcxt);
extern void ExecShutdownCustomScan(CustomScanState *node);
 
#endif                          /* NODECUSTOM_H */