| 1 | /* mg.h
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| 2 | *
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| 3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1999,
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| 4 | * 2000, 2002, by Larry Wall and others
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| 5 | *
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| 6 | * You may distribute under the terms of either the GNU General Public
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| 7 | * License or the Artistic License, as specified in the README file.
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| 8 | *
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| 9 | */
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| 10 |
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| 11 | #ifdef STRUCT_MGVTBL_DEFINITION
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| 12 | STRUCT_MGVTBL_DEFINITION;
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| 13 | #else
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| 14 | struct mgvtbl {
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| 15 | int (CPERLscope(*svt_get)) (pTHX_ SV *sv, MAGIC* mg);
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| 16 | int (CPERLscope(*svt_set)) (pTHX_ SV *sv, MAGIC* mg);
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| 17 | U32 (CPERLscope(*svt_len)) (pTHX_ SV *sv, MAGIC* mg);
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| 18 | int (CPERLscope(*svt_clear))(pTHX_ SV *sv, MAGIC* mg);
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| 19 | int (CPERLscope(*svt_free)) (pTHX_ SV *sv, MAGIC* mg);
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| 20 | int (CPERLscope(*svt_copy)) (pTHX_ SV *sv, MAGIC* mg,
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| 21 | SV *nsv, const char *name, int namlen);
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| 22 | int (CPERLscope(*svt_dup)) (pTHX_ MAGIC *mg, CLONE_PARAMS *param);
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| 23 | };
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| 24 | #endif
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| 25 |
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| 26 | struct magic {
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| 27 | MAGIC* mg_moremagic;
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| 28 | MGVTBL* mg_virtual; /* pointer to magic functions */
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| 29 | U16 mg_private;
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| 30 | char mg_type;
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| 31 | U8 mg_flags;
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| 32 | SV* mg_obj;
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| 33 | char* mg_ptr;
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| 34 | I32 mg_len;
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| 35 | };
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| 36 |
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| 37 | #define MGf_TAINTEDDIR 1 /* PERL_MAGIC_envelem only */
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| 38 | #define MGf_MINMATCH 1 /* PERL_MAGIC_regex_global only */
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| 39 | #define MGf_REFCOUNTED 2
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| 40 | #define MGf_GSKIP 4
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| 41 | #define MGf_COPY 8
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| 42 | #define MGf_DUP 16
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| 43 |
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| 44 | #define MgTAINTEDDIR(mg) (mg->mg_flags & MGf_TAINTEDDIR)
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| 45 | #define MgTAINTEDDIR_on(mg) (mg->mg_flags |= MGf_TAINTEDDIR)
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| 46 | #define MgTAINTEDDIR_off(mg) (mg->mg_flags &= ~MGf_TAINTEDDIR)
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| 47 |
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| 48 | #define MgPV(mg,lp) ((((int)(lp = (mg)->mg_len)) == HEf_SVKEY) ? \
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| 49 | SvPV((SV*)((mg)->mg_ptr),lp) : \
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| 50 | (mg)->mg_ptr)
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| 51 | #define MgPV_const(mg,lp) ((((int)(lp = (mg)->mg_len)) == HEf_SVKEY) ? \
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| 52 | SvPV_const((SV*)((mg)->mg_ptr),lp) : \
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| 53 | (const char*)(mg)->mg_ptr)
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| 54 | #define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \
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| 55 | SvPV_nolen_const((SV*)((mg)->mg_ptr)) : \
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| 56 | (const char*)(mg)->mg_ptr)
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| 57 |
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| 58 | #define SvTIED_mg(sv,how) \
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| 59 | (SvRMAGICAL(sv) ? mg_find((sv),(how)) : Null(MAGIC*))
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| 60 | #define SvTIED_obj(sv,mg) \
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| 61 | ((mg)->mg_obj ? (mg)->mg_obj : sv_2mortal(newRV(sv)))
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