98 lines
2.2 KiB
C
98 lines
2.2 KiB
C
|
/****************************************************************
|
||
|
|
* *
|
||
|
|
* Copyright 2001, 2009 Fidelity Information Services, Inc *
|
||
|
|
* *
|
||
|
|
* This source code contains the intellectual property *
|
||
|
|
* of its copyright holder(s), and is made available *
|
||
|
|
* under a license. If you do not know the terms of *
|
||
|
|
* the license, please stop and do not read further. *
|
||
|
|
* *
|
||
|
|
****************************************************************/
|
||
|
|
|
||
|
|
#include "mdef.h"
|
||
|
|
|
||
|
|
#include "gtm_string.h"
|
||
|
|
|
||
|
|
#include "gtm_stdio.h"
|
||
|
|
#include "io.h"
|
||
|
|
#include "iottdef.h"
|
||
|
|
#include "iomtdef.h"
|
||
|
|
#include "stringpool.h"
|
||
|
|
#include "iosp.h"
|
||
|
|
|
||
|
|
GBLREF spdesc stringpool;
|
||
|
|
GBLREF io_pair io_curr_device;
|
||
|
|
|
||
|
|
int iomt_read(mval *v, int4 t)
|
||
|
|
{
|
||
|
|
error_def(ERR_MTRDTHENWRT);
|
||
|
|
io_desc *dv;
|
||
|
|
d_mt_struct *mt_ptr;
|
||
|
|
|
||
|
|
#ifdef DP
|
||
|
|
FPRINTF(stderr, ">> iomt_read\n");
|
||
|
|
#endif
|
||
|
|
|
||
|
|
assert(stringpool.free >= stringpool.base);
|
||
|
|
assert(stringpool.free <= stringpool.top);
|
||
|
|
dv = io_curr_device.in;
|
||
|
|
mt_ptr = (d_mt_struct *) dv->dev_sp;
|
||
|
|
ENSURE_STP_FREE_SPACE(mt_ptr->record_sz);
|
||
|
|
v->str.addr = (char *) stringpool.free;
|
||
|
|
|
||
|
|
#ifdef UNIX
|
||
|
|
if (mt_ptr->mode != MT_M_READ)
|
||
|
|
{
|
||
|
|
uint4 status;
|
||
|
|
|
||
|
|
status = iomt_reopen(dv, MT_M_READ, FALSE);
|
||
|
|
if (status != SS_NORMAL)
|
||
|
|
return (status);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
switch (mt_ptr->last_op)
|
||
|
|
{
|
||
|
|
case mt_rewind:
|
||
|
|
if (mt_ptr->labeled == MTLAB_DOS11)
|
||
|
|
iomt_rddoslab (dv);
|
||
|
|
else if (mt_ptr->labeled == MTLAB_ANSI)
|
||
|
|
iomt_rdansistart (dv);
|
||
|
|
/* CAUTION: FALL THROUGH */
|
||
|
|
case mt_null:
|
||
|
|
if (iomt_readblk(dv))
|
||
|
|
{
|
||
|
|
if (mt_ptr->stream)
|
||
|
|
iomt_rdstream(mt_ptr->record_sz, v->str.addr, dv);
|
||
|
|
else
|
||
|
|
iomt_getrec(dv);
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case mt_read:
|
||
|
|
if (mt_ptr->stream)
|
||
|
|
iomt_rdstream(mt_ptr->record_sz, v->str.addr, dv);
|
||
|
|
else
|
||
|
|
iomt_getrec(dv);
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
rts_error(VARLSTCNT (1) ERR_MTRDTHENWRT);
|
||
|
|
}
|
||
|
|
if (io_curr_device.in->dollar.zeof)
|
||
|
|
{
|
||
|
|
v->str.len = 0;
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
if (!mt_ptr->stream)
|
||
|
|
memcpy(v->str.addr, mt_ptr->rec.addr, mt_ptr->rec.len);
|
||
|
|
v->str.len = mt_ptr->rec.len;
|
||
|
|
io_curr_device.in->dollar.x = 0;
|
||
|
|
io_curr_device.in->dollar.y++;
|
||
|
|
mt_ptr->last_op = (mt_ptr->buffptr >= mt_ptr->bufftop)
|
||
|
|
? mt_null : mt_read;
|
||
|
|
|
||
|
|
#ifdef DP
|
||
|
|
FPRINTF(stderr, "<< iomt_read\n");
|
||
|
|
#endif
|
||
|
|
|
||
|
|
return TRUE;
|
||
|
|
}
|