/* sv.h
*
- * Copyright (c) 1991-1994, Larry Wall
+ * Copyright (c) 1991-1997, Larry Wall
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
#define SvANY(sv) (sv)->sv_any
#define SvFLAGS(sv) (sv)->sv_flags
-
#define SvREFCNT(sv) (sv)->sv_refcnt
-#ifdef CRIPPLED_CC
-#define SvREFCNT_inc(sv) sv_newref((SV*)sv)
-#define SvREFCNT_dec(sv) sv_free((SV*)sv)
+
+#ifdef __GNUC__
+# define SvREFCNT_inc(sv) ({SV* nsv=(SV*)(sv); if(nsv) ++SvREFCNT(nsv); nsv;})
#else
-#define SvREFCNT_inc(sv) ((Sv = (SV*)(sv)), \
- (Sv && ++SvREFCNT(Sv)), (SV*)Sv)
-#define SvREFCNT_dec(sv) sv_free((SV*)sv)
+# if defined(CRIPPLED_CC) || defined(USE_THREADS)
+# define SvREFCNT_inc(sv) sv_newref((SV*)sv)
+# else
+# define SvREFCNT_inc(sv) ((Sv=(SV*)(sv)), (Sv && ++SvREFCNT(Sv)), (SV*)Sv)
+# endif
#endif
+#define SvREFCNT_dec(sv) sv_free((SV*)sv)
+
#define SVTYPEMASK 0xff
#define SvTYPE(sv) ((sv)->sv_flags & SVTYPEMASK)
#define SVpfm_COMPILED 0x80000000
#define SVpbm_VALID 0x80000000
-#define SVpbm_CASEFOLD 0x40000000
-#define SVpbm_TAIL 0x20000000
+#define SVpbm_TAIL 0x40000000
#define SVphv_SHAREKEYS 0x20000000 /* keys live on shared string table */
-
-#ifdef OVERLOAD
-#define SVpgv_AM 0x40000000
-/* #define SVpgv_badAM 0x20000000 */
-#endif /* OVERLOAD */
+#define SVphv_LAZYDEL 0x40000000 /* entry in xhv_eiter must be deleted */
struct xrv {
SV * xrv_rv; /* pointer to another SV */
IV xiv_iv; /* integer value or pv offset */
};
+struct xpvuv {
+ char * xpv_pv; /* pointer to malloced string */
+ STRLEN xpv_cur; /* length of xpv_pv as a C string */
+ STRLEN xpv_len; /* allocated size */
+ UV xuv_uv; /* unsigned value or pv offset */
+};
+
struct xpvnv {
char * xpv_pv; /* pointer to malloced string */
STRLEN xpv_cur; /* length of xpv_pv as a C string */
U8 xbm_rare; /* rarest character in string */
};
+/* This structure much match XPVCV */
+
+typedef U16 cv_flags_t;
+
struct xpvfm {
char * xpv_pv; /* pointer to malloced string */
STRLEN xpv_cur; /* length of xpv_pv as a C string */
long xcv_depth; /* >= 2 indicates recursive call */
AV * xcv_padlist;
CV * xcv_outside;
+#ifdef USE_THREADS
+ perl_mutex *xcv_mutexp; /* protects xcv_owner */
+ struct perl_thread *xcv_owner; /* current owner thread */
+#endif /* USE_THREADS */
+ cv_flags_t xcv_flags;
+
I32 xfm_lines;
};
MAGIC* xmg_magic; /* linked list of magicalness */
HV* xmg_stash; /* class package */
- FILE * xio_ifp; /* ifp and ofp are normally the same */
- FILE * xio_ofp; /* but sockets need separate streams */
+ PerlIO * xio_ifp; /* ifp and ofp are normally the same */
+ PerlIO * xio_ofp; /* but sockets need separate streams */
DIR * xio_dirp; /* for opendir, readdir, etc */
long xio_lines; /* $. */
long xio_page; /* $% */
#define IOf_START 2 /* check for null ARGV and substitute '-' */
#define IOf_FLUSH 4 /* this fp wants a flush after write op */
#define IOf_DIDTOP 8 /* just did top of form */
+#define IOf_UNTAINT 16 /* consider this fp (and it's data) "safe" */
/* The following macros define implementation-independent predicates on SVs. */
#define SvTAIL_on(sv) (SvFLAGS(sv) |= SVpbm_TAIL)
#define SvTAIL_off(sv) (SvFLAGS(sv) &= ~SVpbm_TAIL)
-#define SvCASEFOLD(sv) (SvFLAGS(sv) & SVpbm_CASEFOLD)
-#define SvCASEFOLD_on(sv) (SvFLAGS(sv) |= SVpbm_CASEFOLD)
-#define SvCASEFOLD_off(sv) (SvFLAGS(sv) &= ~SVpbm_CASEFOLD)
-
#define SvVALID(sv) (SvFLAGS(sv) & SVpbm_VALID)
#define SvVALID_on(sv) (SvFLAGS(sv) |= SVpbm_VALID)
#define SvVALID_off(sv) (SvFLAGS(sv) &= ~SVpbm_VALID)
#define SvIVX(sv) ((XPVIV*) SvANY(sv))->xiv_iv
#define SvIVXx(sv) SvIVX(sv)
+#define SvUVX(sv) ((XPVUV*) SvANY(sv))->xuv_uv
+#define SvUVXx(sv) SvUVX(sv)
#define SvNVX(sv) ((XPVNV*)SvANY(sv))->xnv_nv
#define SvNVXx(sv) SvNVX(sv)
#define SvPVX(sv) ((XPV*) SvANY(sv))->xpv_pv
#define IoTYPE(sv) ((XPVIO*) SvANY(sv))->xio_type
#define IoFLAGS(sv) ((XPVIO*) SvANY(sv))->xio_flags
-#define SvTAINT(sv) if (tainting && tainted) sv_magic(sv, Nullsv, 't', Nullch, 0)
+#define SvTAINTED(sv) (SvMAGICAL(sv) && sv_tainted(sv))
+#define SvTAINTED_on(sv) STMT_START{ if(tainting){sv_taint(sv);} }STMT_END
+#define SvTAINTED_off(sv) STMT_START{ if(tainting){sv_untaint(sv);} }STMT_END
+
+#define SvTAINT(sv) STMT_START{ if(tainted){SvTAINTED_on(sv);} }STMT_END
#ifdef CRIPPLED_CC
-IV SvIV _((SV* sv));
-double SvNV _((SV* sv));
#define SvPV_force(sv, lp) sv_pvn_force(sv, &lp)
#define SvPV(sv, lp) sv_pvn(sv, &lp)
-char *sv_pvn _((SV *, STRLEN *));
-I32 SvTRUE _((SV *));
-
-#define SvIVx(sv) SvIV(sv)
-#define SvNVx(sv) SvNV(sv)
+#define SvIVx(sv) sv_iv(sv)
+#define SvUVx(sv) sv_uv(sv)
+#define SvNVx(sv) sv_nv(sv)
#define SvPVx(sv, lp) sv_pvn(sv, &lp)
#define SvPVx_force(sv, lp) sv_pvn_force(sv, &lp)
-#define SvTRUEx(sv) SvTRUE(sv)
+#define SvTRUEx(sv) sv_true(sv)
+
+#define SvIV(sv) SvIVx(sv)
+#define SvNV(sv) SvNVx(sv)
+#define SvUV(sv) SvIVx(sv)
+#define SvTRUE(sv) SvTRUEx(sv)
#else /* !CRIPPLED_CC */
+#undef SvIV
#define SvIV(sv) (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))
+#undef SvUV
+#define SvUV(sv) (SvIOK(sv) ? SvUVX(sv) : sv_2uv(sv))
+
+#undef SvNV
#define SvNV(sv) (SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv))
-#define SvPV(sv, lp) (SvPOK(sv) ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_2pv(sv, &lp))
+#undef SvPV
+#define SvPV(sv, lp) \
+ (SvPOK(sv) ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_2pv(sv, &lp))
-#define SvPV_force(sv, lp) ((SvFLAGS(sv) & (SVf_POK|SVf_THINKFIRST)) == SVf_POK ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_pvn_force(sv, &lp))
+#undef SvPV_force
+#define SvPV_force(sv, lp) \
+ ((SvFLAGS(sv) & (SVf_POK|SVf_THINKFIRST)) == SVf_POK \
+ ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_pvn_force(sv, &lp))
+#undef SvTRUE
#define SvTRUE(sv) ( \
!sv \
? 0 \
? SvNVX(sv) != 0.0 \
: sv_2bool(sv) )
-#define SvIVx(sv) ((Sv = (sv)), SvIV(Sv))
-#define SvNVx(sv) ((Sv = (sv)), SvNV(Sv))
-#define SvPVx(sv, lp) ((Sv = (sv)), SvPV(Sv, lp))
+#ifdef __GNUC__
+# define SvIVx(sv) ({SV *nsv = (SV*)(sv); SvIV(nsv); })
+# define SvUVx(sv) ({SV *nsv = (SV*)(sv); SvUV(nsv); })
+# define SvNVx(sv) ({SV *nsv = (SV*)(sv); SvNV(nsv); })
+# define SvPVx(sv, lp) ({SV *nsv = (sv); SvPV(nsv, lp); })
+#else
+# define SvIVx(sv) ((Sv = (sv)), SvIV(Sv))
+# define SvUVx(sv) ((Sv = (sv)), SvUV(Sv))
+# define SvNVx(sv) ((Sv = (sv)), SvNV(Sv))
+# define SvPVx(sv, lp) ((Sv = (sv)), SvPV(Sv, lp))
+#endif /* __GNUC__ */
+
#define SvTRUEx(sv) ((Sv = (sv)), SvTRUE(Sv))
#endif /* CRIPPLED_CC */
+#define newRV_inc(sv) newRV(sv)
+#ifdef __GNUC__
+# undef newRV_noinc
+# define newRV_noinc(sv) ({SV *nsv=newRV((sv)); --SvREFCNT(SvRV(nsv)); nsv;})
+#else
+# if defined(CRIPPLED_CC) || defined(USE_THREADS)
+# else
+# undef newRV_noinc
+# define newRV_noinc(sv) ((Sv = newRV(sv)), --SvREFCNT(SvRV(Sv)), Sv)
+# endif
+#endif /* __GNUC__ */
+
/* the following macro updates any magic values this sv is associated with */
#define SvSETMAGIC(x) if (SvSMAGICAL(x)) mg_set(x)
-#define SvSetSV(dst,src) if (dst != src) sv_setsv(dst,src)
+#define SvSetSV_and(dst,src,finally) \
+ if ((dst) != (src)) { \
+ sv_setsv(dst, src); \
+ finally; \
+ }
+#define SvSetSV_nosteal_and(dst,src,finally) \
+ if ((dst) != (src)) { \
+ U32 tMpF = SvFLAGS(src) & SVs_TEMP; \
+ SvTEMP_off(src); \
+ sv_setsv(dst, src); \
+ SvFLAGS(src) |= tMpF; \
+ finally; \
+ }
+
+#define SvSetSV(dst,src) \
+ SvSetSV_and(dst,src,/*nothing*/;)
+#define SvSetSV_nosteal(dst,src) \
+ SvSetSV_nosteal_and(dst,src,/*nothing*/;)
+
+#define SvSetMagicSV(dst,src) \
+ SvSetSV_and(dst,src,SvSETMAGIC(dst))
+#define SvSetMagicSV_nosteal(dst,src) \
+ SvSetSV_nosteal_and(dst,src,SvSETMAGIC(dst))
#define SvPEEK(sv) sv_peek(sv)
+#define SvIMMORTAL(sv) ((sv)==&sv_undef || (sv)==&sv_yes || (sv)==&sv_no)
+
+#define boolSV(b) ((b) ? &sv_yes : &sv_no)
+
#define isGV(sv) (SvTYPE(sv) == SVt_PVGV)
#ifndef DOSISH
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