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mg.h
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/* mg.h * * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1999, * 2000, 2002, 2005, 2006, 2007, 2008 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. * */ struct mgvtbl { int (*svt_get) (pTHX_ SV *sv, MAGIC* mg); int (*svt_set) (pTHX_ SV *sv, MAGIC* mg); U32 (*svt_len) (pTHX_ SV *sv, MAGIC* mg); int (*svt_clear)(pTHX_ SV *sv, MAGIC* mg); int (*svt_free) (pTHX_ SV *sv, MAGIC* mg); int (*svt_copy) (pTHX_ SV *sv, MAGIC* mg, SV *nsv, const char *name, I32 namlen); int (*svt_dup) (pTHX_ MAGIC *mg, CLONE_PARAMS *param); int (*svt_local)(pTHX_ SV *nsv, MAGIC *mg); }; struct magic { MAGIC* mg_moremagic; MGVTBL* mg_virtual; /* pointer to magic functions */ U16 mg_private; char mg_type; U8 mg_flags; SSize_t mg_len; SV* mg_obj; char* mg_ptr; }; #define MGf_TAINTEDDIR 1 /* PERL_MAGIC_envelem only */ #define MGf_MINMATCH 1 /* PERL_MAGIC_regex_global only */ #define MGf_REQUIRE_GV 1 /* PERL_MAGIC_checkcall only */ #define MGf_REFCOUNTED 2 #define MGf_GSKIP 4 /* skip further GETs until after next SET */ #define MGf_COPY 8 /* has an svt_copy MGVTBL entry */ #define MGf_DUP 0x10 /* has an svt_dup MGVTBL entry */ #define MGf_LOCAL 0x20 /* has an svt_local MGVTBL entry */ #define MGf_BYTES 0x40 /* PERL_MAGIC_regex_global only */ #define MGf_PERSIST 0x80 /* PERL_MAGIC_lvref only */ #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(MUTABLE_SV((mg)->mg_ptr),lp) : \ (mg)->mg_ptr) #define MgPV_const(mg,lp) ((((int)(lp = (mg)->mg_len)) == HEf_SVKEY) ? \ SvPV_const(MUTABLE_SV((mg)->mg_ptr),lp) : \ (const char*)(mg)->mg_ptr) #define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \ SvPV_nolen_const(MUTABLE_SV((mg)->mg_ptr)) : \ (const char*)(mg)->mg_ptr) #define SvTIED_mg(sv,how) (SvRMAGICAL(sv) ? mg_find((sv),(how)) : NULL) #define SvTIED_obj(sv,mg) \ ((mg)->mg_obj ? (mg)->mg_obj : sv_2mortal(newRV(sv))) #if defined(PERL_CORE) || defined(PERL_EXT) # define MgBYTEPOS(mg,sv,pv,len) S_MgBYTEPOS(aTHX_ mg,sv,pv,len) /* assumes get-magic and stringification have already occurred */ # define MgBYTEPOS_set(mg,sv,pv,off) ( \ assert_((mg)->mg_type == PERL_MAGIC_regex_global) \ SvPOK(sv) && (!SvGMAGICAL(sv) || sv_only_taint_gmagic(sv)) \ ? (mg)->mg_len = (off), (mg)->mg_flags |= MGf_BYTES \ : ((mg)->mg_len = DO_UTF8(sv) \ ? (SSize_t)utf8_length((U8 *)(pv), (U8 *)(pv)+(off)) \ : (SSize_t)(off), \ (mg)->mg_flags &= ~MGf_BYTES)) #endif #define whichsig(pv) whichsig_pv(pv) /* * ex: set ts=8 sts=4 sw=4 et: */