Move all under modules/database
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85
modules/database/src/ioc/db/dbExtractArray.c
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85
modules/database/src/ioc/db/dbExtractArray.c
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/*************************************************************************\
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* Copyright (c) 2010 Brookhaven National Laboratory.
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* Copyright (c) 2010 Helmholtz-Zentrum Berlin
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* fuer Materialien und Energie GmbH.
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* Copyright (c) 2002 The University of Chicago, as Operator of Argonne
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* National Laboratory.
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* Copyright (c) 2002 The Regents of the University of California, as
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* Operator of Los Alamos National Laboratory.
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* EPICS BASE is distributed subject to a Software License Agreement found
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* in file LICENSE that is included with this distribution.
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\*************************************************************************/
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/*
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* Author: Ralph Lange <Ralph.Lange@bessy.de>
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*
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* based on dbConvert.c
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* written by: Bob Dalesio, Marty Kraimer
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*/
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#include <string.h>
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#include "epicsTypes.h"
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#define epicsExportSharedSymbols
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#include "dbAddr.h"
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#include "dbExtractArray.h"
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void dbExtractArrayFromRec(const dbAddr *paddr, void *pto,
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long nRequest, long no_elements, long offset, long increment)
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{
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char *pdst = (char *) pto;
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char *psrc = (char *) paddr->pfield;
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long nUpperPart;
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int i;
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short srcSize = paddr->field_size;
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short dstSize = srcSize;
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char isString = (paddr->field_type == DBF_STRING);
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if (nRequest > no_elements) nRequest = no_elements;
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if (isString && srcSize > MAX_STRING_SIZE) dstSize = MAX_STRING_SIZE;
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if (increment == 1 && dstSize == srcSize) {
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nUpperPart = nRequest < no_elements - offset ? nRequest : no_elements - offset;
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memcpy(pdst, &psrc[offset * srcSize], dstSize * nUpperPart);
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if (nRequest > nUpperPart)
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memcpy(&pdst[dstSize * nUpperPart], psrc, dstSize * (nRequest - nUpperPart));
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if (isString)
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for (i = 1; i <= nRequest; i++)
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pdst[dstSize*i-1] = '\0';
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} else {
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for (; nRequest > 0; nRequest--, pdst += dstSize, offset += increment) {
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offset %= no_elements;
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memcpy(pdst, &psrc[offset*srcSize], dstSize);
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if (isString) pdst[dstSize-1] = '\0';
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}
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}
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}
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void dbExtractArrayFromBuf(const void *pfrom, void *pto,
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short field_size, short field_type,
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long nRequest, long no_elements, long offset, long increment)
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{
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char *pdst = (char *) pto;
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char *psrc = (char *) pfrom;
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int i;
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short srcSize = field_size;
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short dstSize = srcSize;
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char isString = (field_type == DBF_STRING);
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if (nRequest > no_elements) nRequest = no_elements;
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if (offset > no_elements - 1) offset = no_elements - 1;
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if (isString && dstSize >= MAX_STRING_SIZE) dstSize = MAX_STRING_SIZE - 1;
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if (increment == 1) {
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memcpy(pdst, &psrc[offset * srcSize], dstSize * nRequest);
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if (isString)
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for (i = 1; i <= nRequest; i++)
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pdst[dstSize*i] = '\0';
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} else {
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for (; nRequest > 0; nRequest--, pdst += srcSize, offset += increment) {
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memcpy(pdst, &psrc[offset*srcSize], dstSize);
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if (isString) pdst[dstSize] = '\0';
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}
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}
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}
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