1998-09-09 07:00:04 +00:00
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/* mg.h
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*
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1999-05-02 14:33:17 +00:00
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* Copyright (c) 1991-1999, Larry Wall
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1998-09-09 07:00:04 +00:00
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*
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* You may distribute under the terms of either the GNU General Public
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* License or the Artistic License, as specified in the README file.
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*
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*/
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#ifdef STRUCT_MGVTBL_DEFINITION
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STRUCT_MGVTBL_DEFINITION;
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#else
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struct mgvtbl {
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int (CPERLscope(*svt_get)) _((SV *sv, MAGIC* mg));
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int (CPERLscope(*svt_set)) _((SV *sv, MAGIC* mg));
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U32 (CPERLscope(*svt_len)) _((SV *sv, MAGIC* mg));
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int (CPERLscope(*svt_clear)) _((SV *sv, MAGIC* mg));
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int (CPERLscope(*svt_free)) _((SV *sv, MAGIC* mg));
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};
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#endif
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struct magic {
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MAGIC* mg_moremagic;
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MGVTBL* mg_virtual; /* pointer to magic functions */
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U16 mg_private;
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char mg_type;
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U8 mg_flags;
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SV* mg_obj;
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char* mg_ptr;
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I32 mg_len;
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};
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#define MGf_TAINTEDDIR 1
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#define MGf_REFCOUNTED 2
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#define MGf_GSKIP 4
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#define MGf_MINMATCH 1
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#define MgTAINTEDDIR(mg) (mg->mg_flags & MGf_TAINTEDDIR)
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#define MgTAINTEDDIR_on(mg) (mg->mg_flags |= MGf_TAINTEDDIR)
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#define MgTAINTEDDIR_off(mg) (mg->mg_flags &= ~MGf_TAINTEDDIR)
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#define MgPV(mg,lp) (((lp = (mg)->mg_len) == HEf_SVKEY) ? \
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SvPV((SV*)((mg)->mg_ptr),lp) : \
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(mg)->mg_ptr)
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1999-05-02 14:33:17 +00:00
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#define SvTIED_mg(sv,how) \
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(SvRMAGICAL(sv) ? mg_find((sv),(how)) : Null(MAGIC*))
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#define SvTIED_obj(sv,mg) \
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((mg)->mg_obj ? (mg)->mg_obj : sv_2mortal(newRV(sv)))
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