fis-gtm/sr_port/op_exfunretals.c

50 lines
1.5 KiB
C

/****************************************************************
* *
* Copyright 2010, 2011 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 "rtnhdr.h"
#include "stack_frame.h"
#include "op.h"
#include "hashtab_mname.h"
#include "gdsroot.h"
#include "gtm_facility.h"
#include "fileinfo.h"
#include "gdsbt.h"
#include "gdsfhead.h"
#include "alias.h"
GBLREF mval *alias_retarg;
error_def(ERR_QUITARGREQD);
error_def(ERR_ALIASEXPECTED);
/* Routine to:
* (1) To turn off the MV_RETARG flag in the mval returned from the M function call.
* (2) To verify the flag was ON in the first place, else this is not a return value.
* (3) To verify the MV_ALIASCONT flag IS on which would signify a QUIT * was done.
* To not do this constitutes an error and means QUIT * was NOT done as is
* required to create an alias on the caller side.
*/
void op_exfunretals(mval *retval)
{
unsigned short savtyp;
savtyp = retval->mvtype;
retval->mvtype &= ~MV_RETARG;
if (0 == (MV_RETARG & savtyp))
rts_error(VARLSTCNT(1) ERR_QUITARGREQD);
if (0 == (MV_ALIASCONT & savtyp))
rts_error(VARLSTCNT(1) ERR_ALIASEXPECTED);
assert(NULL != alias_retarg);
}