fis-gtm/sr_port/op_read.c

64 lines
1.8 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_iconv.h"
#include "io.h"
#include "iosp.h"
#include "iotimer.h"
#include "stringpool.h"
#include "op.h"
#include "ebc_xlat.h"
GBLREF io_pair io_curr_device;
GBLREF io_desc *active_device;
GBLREF spdesc stringpool;
int op_read(mval *v, int4 timeout)
{
int stat;
mval val;
size_t cnt, insize, outsize;
unsigned char *temp_ch;
char *start_ptr, *save_ptr;
error_def(ERR_TEXT);
if (timeout < 0)
timeout = 0;
active_device = io_curr_device.in;
v->mvtype = MV_STR;
v->str.len = 0;
stat = (io_curr_device.in->disp_ptr->read)(v, timeout);
if (stringpool.free == (unsigned char *)v->str.addr)
stringpool.free += v->str.len; /* see UNIX iott_readfl */
assert(stringpool.free <= stringpool.top);
#ifdef KEEP_zOS_EBCDIC
if (DEFAULT_CODE_SET != io_curr_device.in->in_code_set)
{
cnt = insize = outsize = v->str.len;
assert(stringpool.free >= stringpool.base);
ENSURE_STP_FREE_SPACE(cnt);
temp_ch = stringpool.free;
save_ptr = v->str.addr;
start_ptr = (char *)temp_ch;
stringpool.free += cnt;
assert(stringpool.free >= stringpool.base);
assert(stringpool.free <= stringpool.top);
ICONVERT(io_curr_device.in->input_conv_cd, (unsigned char **)&v->str.addr, &insize, &temp_ch, &outsize);
v->str.addr = start_ptr;
}
#endif
active_device = 0;
if (NO_M_TIMEOUT != timeout)
return(stat);
return FALSE;
}