Initial commit of OpenSPARC T2 architecture model.

[OpenSPARC-T2-SAM] / sam-t2 / devtools / v8plus / lib / perl5 / 5.8.8 / sun4-solaris / CORE / mg.h

/*    mg.h
*
*    Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1999,
*    2000, 2002, by Larry Wall and others
*
*    You may distribute under the terms of either the GNU General Public
*    License or the Artistic License, as specified in the README file.
*
*/

#ifdef STRUCT_MGVTBL_DEFINITION
STRUCT_MGVTBL_DEFINITION;
#else
struct mgvtbl {
   int         (CPERLscope(*svt_get))  (pTHX_ SV *sv, MAGIC* mg);
   int         (CPERLscope(*svt_set))  (pTHX_ SV *sv, MAGIC* mg);
   U32         (CPERLscope(*svt_len))  (pTHX_ SV *sv, MAGIC* mg);
   int         (CPERLscope(*svt_clear))(pTHX_ SV *sv, MAGIC* mg);
   int         (CPERLscope(*svt_free)) (pTHX_ SV *sv, MAGIC* mg);
   int         (CPERLscope(*svt_copy)) (pTHX_ SV *sv, MAGIC* mg,
                                       SV *nsv, const char *name, int namlen);
   int         (CPERLscope(*svt_dup))  (pTHX_ MAGIC *mg, CLONE_PARAMS *param);
};
#endif

struct magic {
   MAGIC*      mg_moremagic;
   MGVTBL* mg_virtual; /* pointer to magic functions */
   U16         mg_private;
   char        mg_type;
   U8          mg_flags;
   SV*         mg_obj;
   char*       mg_ptr;
   I32         mg_len;
};

#define MGf_TAINTEDDIR 1        /* PERL_MAGIC_envelem only */
#define MGf_MINMATCH   1        /* PERL_MAGIC_regex_global only */
#define MGf_REFCOUNTED 2
#define MGf_GSKIP      4
#define MGf_COPY       8
#define MGf_DUP        16

#define MgTAINTEDDIR(mg)        (mg->mg_flags & MGf_TAINTEDDIR)
#define MgTAINTEDDIR_on(mg)     (mg->mg_flags |= MGf_TAINTEDDIR)
#define MgTAINTEDDIR_off(mg)    (mg->mg_flags &= ~MGf_TAINTEDDIR)

#define MgPV(mg,lp)             ((((int)(lp = (mg)->mg_len)) == HEf_SVKEY) ?   \
                                SvPV((SV*)((mg)->mg_ptr),lp) :         \
                                (mg)->mg_ptr)
#define MgPV_const(mg,lp)       ((((int)(lp = (mg)->mg_len)) == HEf_SVKEY) ? \
                                SvPV_const((SV*)((mg)->mg_ptr),lp) :        \
                                (const char*)(mg)->mg_ptr)
#define MgPV_nolen_const(mg)    (((((int)(mg)->mg_len)) == HEf_SVKEY) ?   \
                                SvPV_nolen_const((SV*)((mg)->mg_ptr)) :  \
                                (const char*)(mg)->mg_ptr)

#define SvTIED_mg(sv,how) \
   (SvRMAGICAL(sv) ? mg_find((sv),(how)) : Null(MAGIC*))
#define SvTIED_obj(sv,mg) \
   ((mg)->mg_obj ? (mg)->mg_obj : sv_2mortal(newRV(sv)))