80 lines
2.5 KiB
C
80 lines
2.5 KiB
C
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/****************************************************************
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* *
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* Copyright 2001, 2011 Fidelity Information Services, Inc *
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* *
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* This source code contains the intellectual property *
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* of its copyright holder(s), and is made available *
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* under a license. If you do not know the terms of *
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* the license, please stop and do not read further. *
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* *
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****************************************************************/
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#include "mdef.h"
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#include "gtm_descript.h"
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#include "min_max.h"
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#include "collseq.h"
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#include "do_xform.h"
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void do_xform(collseq *csp, int fc_type, mstr *input, mstr *output, int *length)
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{
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gtm32_descriptor outbuff1, insub1;
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gtm_descriptor outbuff, insub;
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int4 status;
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error_def(ERR_COLLARGLONG);
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DO_XFORM_RETURN_IF_NULL_STRING(input, output, length);
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assert (0 == csp->argtype || 1 == csp->argtype);
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assert(XFORM == fc_type || XBACK == fc_type);
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if (0 == csp->argtype)
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{
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if (MAX_STRLEN_32K < input->len)
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rts_error(VARLSTCNT(3) ERR_COLLARGLONG, 1, csp->act);
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insub.type = DSC_K_DTYPE_T;
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insub.len = input->len;
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insub.val = input->addr;
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outbuff.type = DSC_K_DTYPE_T;
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outbuff.len = MIN(output->len, MAX_STRLEN_32K);
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outbuff.val = output->addr;
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if (XFORM == fc_type)
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status = (csp->xform)(&insub, 1, &outbuff, length);
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else
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status = (csp->xback)(&insub, 1, &outbuff, length);
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/* If collation routine has changed outbuff.val (which it will if it cannot store the transformed
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* result in the buffer that is passed in), the transformed value is stored in the buffer allocated
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* externally by the collation routine. In this case, update output->addr before returning. */
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if (outbuff.val != output->addr)
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{
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assert(outbuff.len > MIN(output->len, MAX_STRLEN_32K));
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output->addr = outbuff.val;
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}
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} else
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{
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insub1.type = DSC_K_DTYPE_T;
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insub1.len = input->len;
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insub1.val = input->addr;
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outbuff1.type = DSC_K_DTYPE_T;
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outbuff1.len = output->len;
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outbuff1.val = output->addr;
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if (XFORM == fc_type)
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status = (csp->xform)(&insub1, 1, &outbuff1, length);
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else
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status = (csp->xback)(&insub1, 1, &outbuff1, length);
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/* If collation routine has changed outbuff1.val (which it will if it cannot store the transformed
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* result in the buffer that is passed in), the transformed value is stored in the buffer allocated
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* externally by the collation routine. In this case, update output->addr before returning. */
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if (outbuff1.val != output->addr)
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{
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assert(outbuff1.len > output->len);
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output->addr = outbuff1.val;
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}
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}
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if (status)
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rts_error(VARLSTCNT(1) status);
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}
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