fis-gtm/sr_port/get_frame_creation_info.c

81 lines
2.3 KiB
C

/****************************************************************
* *
* Copyright 2001, 2012 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 "stringpool.h"
#include "error_trap.h"
#define CREATEDBY_DO 0
#define CREATEDBY_XECUTE 1
#define CREATEDBY_FUNCTION 2
#define CREATEDBY_ZINTR 3
#define CREATEDBY_TRIGGER 4
GBLREF stack_frame *frame_pointer;
GBLREF spdesc stringpool;
#ifdef UNIX
LITDEF mstr createdby_text[5] = {{0, LEN_AND_LIT("DO")}, {0, LEN_AND_LIT("XECUTE")}, {0, LEN_AND_LIT("$$")},
{0, LEN_AND_LIT("ZINTR")}, {0, LEN_AND_LIT("TRIGGER")}};
#endif
#ifdef VMS
LITDEF mstr createdby_text[4] = {{LEN_AND_LIT("DO")}, {LEN_AND_LIT("XECUTE")}, {LEN_AND_LIT("$$")},
{LEN_AND_LIT("ZINTR")}};
#endif
void get_frame_creation_info(int level, int cur_zlevel, mval *result)
{
int count;
stack_frame *fp;
assert(0 < level);
assert(level < cur_zlevel);
count = cur_zlevel;
for (fp = frame_pointer; ; fp = fp->old_frame_pointer)
{
if (NULL == fp->old_frame_pointer)
{
if (fp->type & SFT_TRIGR)
/* Have a trigger baseframe, pick up stack continuation frame_pointer stored by base_frame() */
fp = *(stack_frame **)(fp + 1);
else
{ /* Something wrong, just return null or assert if debug mode */
assert(FALSE);
result->str.len = 0;
return;
}
}
assert(NULL != fp);
if (!(fp->type & SFT_COUNT))
continue;
count--;
if (count == level)
break;
}
assert(fp && (fp->type & SFT_COUNT));
if (fp && (fp->type & SFT_ZINTR))
result->str = createdby_text[CREATEDBY_ZINTR];
else if (fp && (fp->flags & SFF_INDCE))
result->str = createdby_text[CREATEDBY_XECUTE];
# ifdef GTM_TRIGGER
else if (fp && (fp->old_frame_pointer->type & SFT_TRIGR))
result->str = createdby_text[CREATEDBY_TRIGGER];
# endif
else if (fp && fp->ret_value)
result->str = createdby_text[CREATEDBY_FUNCTION];
else
result->str = createdby_text[CREATEDBY_DO];
}