38 lines
1.2 KiB
C
38 lines
1.2 KiB
C
/****************************************************************
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* *
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* Copyright 2001, 2013 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 "gdsroot.h"
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#include "gdsbt.h"
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#include "gtm_facility.h"
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#include "fileinfo.h"
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#include "gdsfhead.h"
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#include "mm_read.h"
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#include "gtmimagename.h"
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GBLREF sgmnt_addrs *cs_addrs;
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GBLREF unsigned char rdfail_detail;
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sm_uc_ptr_t mm_read(block_id blk)
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{
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/* --- extended or dse (dse is able to edit any header fields freely) --- */
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assert((cs_addrs->total_blks <= cs_addrs->ti->total_blks) || !IS_MCODE_RUNNING);
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assert(blk >= 0);
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INCR_GVSTATS_COUNTER(cs_addrs, cs_addrs->nl, n_dsk_read, 1);
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if (blk < cs_addrs->total_blks) /* use the private copy of total_blks */
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return (MM_BASE_ADDR(cs_addrs) + (off_t)cs_addrs->hdr->blk_size * blk);
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rdfail_detail = (blk < cs_addrs->ti->total_blks) ? cdb_sc_helpedout : cdb_sc_blknumerr;
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return (sm_uc_ptr_t)NULL;
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}
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