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62 lines
1.4 KiB
C
62 lines
1.4 KiB
C
/*-------------------------------------------------------------------------
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*
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* rmgrdesc_utils.c
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* Support functions for rmgrdesc routines
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*
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* Copyright (c) 2023-2025, PostgreSQL Global Development Group
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*
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*
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* IDENTIFICATION
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* src/backend/access/rmgrdesc/rmgrdesc_utils.c
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*
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*-------------------------------------------------------------------------
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*/
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#include "postgres.h"
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#include "access/rmgrdesc_utils.h"
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#include "storage/off.h"
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/*
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* Helper function to print an array, in the format described in the
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* README.
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*/
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void
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array_desc(StringInfo buf, void *array, size_t elem_size, int count,
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void (*elem_desc) (StringInfo buf, void *elem, void *data),
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void *data)
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{
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if (count == 0)
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{
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appendStringInfoString(buf, " []");
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return;
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}
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appendStringInfoString(buf, " [");
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for (int i = 0; i < count; i++)
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{
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elem_desc(buf, (char *) array + elem_size * i, data);
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if (i < count - 1)
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appendStringInfoString(buf, ", ");
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}
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appendStringInfoChar(buf, ']');
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}
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void
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offset_elem_desc(StringInfo buf, void *offset, void *data)
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{
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appendStringInfo(buf, "%u", *(OffsetNumber *) offset);
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}
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void
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redirect_elem_desc(StringInfo buf, void *offset, void *data)
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{
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OffsetNumber *new_offset = (OffsetNumber *) offset;
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appendStringInfo(buf, "%u->%u", new_offset[0], new_offset[1]);
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}
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void
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oid_elem_desc(StringInfo buf, void *relid, void *data)
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{
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appendStringInfo(buf, "%u", *(Oid *) relid);
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}
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