93 lines
2.5 KiB
C
93 lines
2.5 KiB
C
/****************************************************************
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* *
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* Copyright 2001, 2012 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_iconv.h"
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#include "io.h"
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#include "iosp.h"
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#include "iotimer.h"
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#include "stringpool.h"
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#include "op.h"
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#include "ebc_xlat.h"
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#include "gdsroot.h"
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#include "gdskill.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 "gdscc.h"
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#include "filestruct.h"
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#include "buddy_list.h" /* needed for tp.h */
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#include "jnl.h"
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#include "hashtab_int4.h" /* needed for tp.h */
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#include "tp.h"
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#include "send_msg.h"
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#include "gtmmsg.h" /* for gtm_putmsg() prototype */
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#include "change_reg.h"
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#include "setterm.h"
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#include "getzposition.h"
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#ifdef DEBUG
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#include "have_crit.h" /* for the TPNOTACID_CHECK macro */
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#endif
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GBLREF uint4 dollar_trestart;
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GBLREF io_pair io_curr_device;
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GBLREF io_desc *active_device;
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GBLREF spdesc stringpool;
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error_def(ERR_TEXT);
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#define READTIMESTR "READ time too long"
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int op_read(mval *v, int4 timeout)
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{
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int stat;
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mval val;
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size_t cnt, insize, outsize;
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unsigned char *temp_ch;
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char *start_ptr, *save_ptr;
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DCL_THREADGBL_ACCESS;
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SETUP_THREADGBL_ACCESS;
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if (timeout < 0)
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timeout = 0;
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else if (TREF(tpnotacidtime) < timeout)
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TPNOTACID_CHECK(READTIMESTR);
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active_device = io_curr_device.in;
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v->mvtype = MV_STR;
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v->str.len = 0;
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stat = (io_curr_device.in->disp_ptr->read)(v, timeout);
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if (stringpool.free == (unsigned char *)v->str.addr) /* BYPASSOK */
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stringpool.free += v->str.len; /* see UNIX iott_readfl */
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assert(stringpool.free <= stringpool.top);
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# ifdef KEEP_zOS_EBCDIC
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if (DEFAULT_CODE_SET != io_curr_device.in->in_code_set)
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{
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cnt = insize = outsize = v->str.len;
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assert(stringpool.free >= stringpool.base);
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ENSURE_STP_FREE_SPACE(cnt);
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temp_ch = stringpool.free;
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save_ptr = v->str.addr;
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start_ptr = (char *)temp_ch;
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stringpool.free += cnt;
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assert(stringpool.free >= stringpool.base);
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assert(stringpool.free <= stringpool.top);
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ICONVERT(io_curr_device.in->input_conv_cd, (unsigned char **)&v->str.addr, &insize, &temp_ch, &outsize);
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v->str.addr = start_ptr;
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}
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# endif
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active_device = 0;
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if (NO_M_TIMEOUT != timeout)
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return(stat);
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return FALSE;
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}
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