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Commit	Line	Data
	1	/* mg.h
	2	*
	3	* Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1999,
	4	* 2000, 2002, 2005, 2006, 2007, 2008 by Larry Wall and others
	5	*
	6	* You may distribute under the terms of either the GNU General Public
	7	* License or the Artistic License, as specified in the README file.
	8	*
	9	*/
	10
	11	#ifdef STRUCT_MGVTBL_DEFINITION
	12	STRUCT_MGVTBL_DEFINITION;
	13	#else
	14	struct mgvtbl {
	15	int (svt_get) (pTHX_ SV sv, MAGIC* mg);
	16	int (svt_set) (pTHX_ SV sv, MAGIC* mg);
	17	U32 (svt_len) (pTHX_ SV sv, MAGIC* mg);
	18	int (svt_clear)(pTHX_ SV sv, MAGIC* mg);
	19	int (svt_free) (pTHX_ SV sv, MAGIC* mg);
	20	int (svt_copy) (pTHX_ SV sv, MAGIC* mg,
	21	SV nsv, const char name, I32 namlen);
	22	int (svt_dup) (pTHX_ MAGIC mg, CLONE_PARAMS *param);
	23	int (svt_local)(pTHX_ SV nsv, MAGIC *mg);
	24	};
	25	#endif
	26
	27	struct magic {
	28	MAGIC* mg_moremagic;
	29	MGVTBL* mg_virtual; /* pointer to magic functions */
	30	U16 mg_private;
	31	char mg_type;
	32	U8 mg_flags;
	33	I32 mg_len;
	34	SV* mg_obj;
	35	char* mg_ptr;
	36	};
	37
	38	#define MGf_TAINTEDDIR 1 /* PERL_MAGIC_envelem only */
	39	#define MGf_MINMATCH 1 /* PERL_MAGIC_regex_global only */
	40	#define MGf_REFCOUNTED 2
	41	#define MGf_GSKIP 4 /* skip further GETs until after next SET */
	42	#define MGf_COPY 8 /* has an svt_copy MGVTBL entry */
	43	#define MGf_DUP 0x10 /* has an svt_dup MGVTBL entry */
	44	#define MGf_LOCAL 0x20 /* has an svt_local MGVTBL entry */
	45
	46	#define MgTAINTEDDIR(mg) (mg->mg_flags & MGf_TAINTEDDIR)
	47	#define MgTAINTEDDIR_on(mg) (mg->mg_flags \|= MGf_TAINTEDDIR)
	48	#define MgTAINTEDDIR_off(mg) (mg->mg_flags &= ~MGf_TAINTEDDIR)
	49
	50	#define MgPV(mg,lp) ((((int)(lp = (mg)->mg_len)) == HEf_SVKEY) ? \
	51	SvPV(MUTABLE_SV((mg)->mg_ptr),lp) : \
	52	(mg)->mg_ptr)
	53	#define MgPV_const(mg,lp) ((((int)(lp = (mg)->mg_len)) == HEf_SVKEY) ? \
	54	SvPV_const(MUTABLE_SV((mg)->mg_ptr),lp) : \
	55	(const char*)(mg)->mg_ptr)
	56	#define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \
	57	SvPV_nolen_const(MUTABLE_SV((mg)->mg_ptr)) : \
	58	(const char*)(mg)->mg_ptr)
	59
	60	#define SvTIED_mg(sv,how) (SvRMAGICAL(sv) ? mg_find((sv),(how)) : NULL)
	61	#define SvTIED_obj(sv,mg) \
	62	((mg)->mg_obj ? (mg)->mg_obj : sv_2mortal(newRV(sv)))
	63
	64	/*
	65	* Local variables:
	66	* c-indentation-style: bsd
	67	* c-basic-offset: 4
	68	* indent-tabs-mode: t
	69	* End:
	70	*
	71	* ex: set ts=8 sts=4 sw=4 noet:
	72	*/