perl5.git.perl.org Git - perl5.git/blame_incremental

... / ...

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