/* 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.
};
struct cv {
- XPVGV* sv_any; /* pointer to something */
+ XPVCV* sv_any; /* pointer to something */
U32 sv_refcnt; /* how many references to us */
U32 sv_flags; /* what we are */
};
#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 SVf_POK 0x00040000 /* has valid public pointer value */
#define SVf_ROK 0x00080000 /* has a valid reference pointer */
-#define SVf_FAKE 0x00100000 /* glob is just a copy */
+#define SVf_FAKE 0x00100000 /* glob or lexical is just a copy */
#define SVf_OOK 0x00200000 /* has valid offset value */
#define SVf_BREAK 0x00400000 /* refcnt is artificially low */
#define SVf_READONLY 0x00800000 /* may not be modified */
#define SVpfm_COMPILED 0x80000000
#define SVpbm_VALID 0x80000000
-#define SVpbm_CASEFOLD 0x40000000
-#define SVpbm_TAIL 0x20000000
-
-#define SVpgv_MULTI 0x80000000
+#define SVpbm_TAIL 0x40000000
-#ifdef OVERLOAD
-#define SVpgv_AM 0x40000000
-/* #define SVpgv_badAM 0x20000000 */
-#endif /* OVERLOAD */
+#define SVphv_SHAREKEYS 0x20000000 /* keys live on shared string table */
+#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 */
char* xgv_name;
STRLEN xgv_namelen;
HV* xgv_stash;
+ U8 xgv_flags;
};
struct xpvbm {
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 */
GV * xcv_filegv;
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_ARGV 1 /* this fp iterates over ARGV */
#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 SvNIOK(sv) (SvFLAGS(sv) & (SVf_IOK|SVf_NOK))
+#define SvNIOKp(sv) (SvFLAGS(sv) & (SVp_IOK|SVp_NOK))
#define SvNIOK_off(sv) (SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK| \
SVp_IOK|SVp_NOK))
#define SvIOK_on(sv) (SvOOK_off(sv), \
SvFLAGS(sv) |= (SVf_IOK|SVp_IOK))
#define SvIOK_off(sv) (SvFLAGS(sv) &= ~(SVf_IOK|SVp_IOK))
-#define SvIOK_only(sv) (SvOK_off(sv), \
+#define SvIOK_only(sv) (SvOOK_off(sv), SvOK_off(sv), \
SvFLAGS(sv) |= (SVf_IOK|SVp_IOK))
#define SvNOK(sv) (SvFLAGS(sv) & SVf_NOK)
#define SvPOK(sv) (SvFLAGS(sv) & SVf_POK)
#define SvPOK_on(sv) (SvFLAGS(sv) |= (SVf_POK|SVp_POK))
#define SvPOK_off(sv) (SvFLAGS(sv) &= ~(SVf_POK|SVp_POK))
-#define SvPOK_only(sv) (SvOK_off(sv), \
+
+#ifdef OVERLOAD
+#define SvPOK_only(sv) (SvFLAGS(sv) &= ~(SVf_OK|SVf_AMAGIC), \
SvFLAGS(sv) |= (SVf_POK|SVp_POK))
+#else
+#define SvPOK_only(sv) (SvFLAGS(sv) &= ~SVf_OK, \
+ SvFLAGS(sv) |= (SVf_POK|SVp_POK))
+#endif /* OVERLOAD */
#define SvOOK(sv) (SvFLAGS(sv) & SVf_OOK)
#define SvOOK_on(sv) (SvIOK_off(sv), SvFLAGS(sv) |= SVf_OOK)
#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 SvMULTI(sv) (SvFLAGS(sv) & SVpgv_MULTI)
-#define SvMULTI_on(sv) (SvFLAGS(sv) |= SVpgv_MULTI)
-#define SvMULTI_off(sv) (SvFLAGS(sv) &= ~SVpgv_MULTI)
-
#define SvRV(sv) ((XRV*) SvANY(sv))->xrv_rv
#define SvRVx(sv) SvRV(sv)
#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 SvSTASH(sv) ((XPVMG*) SvANY(sv))->xmg_stash
#define SvIV_set(sv, val) \
- do { assert(SvTYPE(sv) == SVt_IV || SvTYPE(sv) >= SVt_PVIV); \
- (((XPVIV*) SvANY(sv))->xiv_iv = val); } while (0)
+ STMT_START { assert(SvTYPE(sv) == SVt_IV || SvTYPE(sv) >= SVt_PVIV); \
+ (((XPVIV*) SvANY(sv))->xiv_iv = val); } STMT_END
#define SvNV_set(sv, val) \
- do { assert(SvTYPE(sv) == SVt_NV || SvTYPE(sv) >= SVt_PVNV); \
- (((XPVNV*) SvANY(sv))->xnv_nv = val); } while (0)
+ STMT_START { assert(SvTYPE(sv) == SVt_NV || SvTYPE(sv) >= SVt_PVNV); \
+ (((XPVNV*) SvANY(sv))->xnv_nv = val); } STMT_END
#define SvPV_set(sv, val) \
- do { assert(SvTYPE(sv) >= SVt_PV); \
- (((XPV*) SvANY(sv))->xpv_pv = val); } while (0)
+ STMT_START { assert(SvTYPE(sv) >= SVt_PV); \
+ (((XPV*) SvANY(sv))->xpv_pv = val); } STMT_END
#define SvCUR_set(sv, val) \
- do { assert(SvTYPE(sv) >= SVt_PV); \
- (((XPV*) SvANY(sv))->xpv_cur = val); } while (0)
+ STMT_START { assert(SvTYPE(sv) >= SVt_PV); \
+ (((XPV*) SvANY(sv))->xpv_cur = val); } STMT_END
#define SvLEN_set(sv, val) \
- do { assert(SvTYPE(sv) >= SVt_PV); \
- (((XPV*) SvANY(sv))->xpv_len = val); } while (0)
+ STMT_START { assert(SvTYPE(sv) >= SVt_PV); \
+ (((XPV*) SvANY(sv))->xpv_len = val); } STMT_END
#define SvEND_set(sv, val) \
- do { assert(SvTYPE(sv) >= SVt_PV); \
- (((XPV*) SvANY(sv))->xpv_cur = val - SvPVX(sv)); } while (0)
+ STMT_START { assert(SvTYPE(sv) >= SVt_PV); \
+ (((XPV*) SvANY(sv))->xpv_cur = val - SvPVX(sv)); } STMT_END
#define BmRARE(sv) ((XPVBM*) SvANY(sv))->xbm_rare
#define BmUSEFUL(sv) ((XPVBM*) SvANY(sv))->xbm_useful
#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
-#ifdef CRIPPLED_CC
+#define SvTAINT(sv) \
+ STMT_START { \
+ if (tainting) { \
+ dTHR; \
+ if (tainted) \
+ SvTAINTED_on(sv); \
+ } \
+ } STMT_END
-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)
-#else /* !CRIPPLED_CC */
+#define SvIV(sv) SvIVx(sv)
+#define SvNV(sv) SvNVx(sv)
+#define SvUV(sv) SvIVx(sv)
+#define SvTRUE(sv) SvTRUEx(sv)
-#define SvIV(sv) (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))
+#ifndef CRIPPLED_CC
+/* redefine some things to more efficient inlined versions */
-#define SvNV(sv) (SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv))
+#undef SvIV
+#define SvIV(sv) (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))
-#define SvPV(sv, lp) (SvPOK(sv) ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_2pv(sv, &lp))
+#undef SvUV
+#define SvUV(sv) (SvIOK(sv) ? SvUVX(sv) : sv_2uv(sv))
-#define SvPV_force(sv, lp) ((SvFLAGS(sv) & (SVf_POK|SVf_THINKFIRST)) == SVf_POK ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_pvn_force(sv, &lp))
+#undef SvNV
+#define SvNV(sv) (SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv))
-#define SvTRUE(sv) ( \
+#undef SvPV
+#define SvPV(sv, lp) \
+ (SvPOK(sv) ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_2pv(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))
+
+#ifdef __GNUC__
+# undef SvIVx
+# undef SvUVx
+# undef SvNVx
+# undef SvPVx
+# undef SvTRUE
+# undef SvTRUEx
+# 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); })
+# define SvTRUE(sv) ( \
+ !sv \
+ ? 0 \
+ : SvPOK(sv) \
+ ? (({XPV *nxpv = (XPV*)SvANY(sv); \
+ nxpv && \
+ (*nxpv->xpv_pv > '0' || \
+ nxpv->xpv_cur > 1 || \
+ (nxpv->xpv_cur && *nxpv->xpv_pv != '0')); }) \
+ ? 1 \
+ : 0) \
+ : \
+ SvIOK(sv) \
+ ? SvIVX(sv) != 0 \
+ : SvNOK(sv) \
+ ? SvNVX(sv) != 0.0 \
+ : sv_2bool(sv) )
+# define SvTRUEx(sv) ({SV *nsv = (sv); SvTRUE(nsv); })
+#else /* __GNUC__ */
+#ifndef USE_THREADS
+/* These inlined macros use globals, which will require a thread
+ * declaration in user code, so we avoid them under threads */
+
+# undef SvIVx
+# undef SvUVx
+# undef SvNVx
+# undef SvPVx
+# undef SvTRUE
+# undef SvTRUEx
+# 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))
+# define SvTRUE(sv) ( \
!sv \
? 0 \
: SvPOK(sv) \
: SvNOK(sv) \
? 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))
-#define SvTRUEx(sv) ((Sv = (sv)), SvTRUE(Sv))
-
-#endif /* CRIPPLED_CC */
+# define SvTRUEx(sv) ((Sv = (sv)), SvTRUE(Sv))
+#endif /* !USE_THREADS */
+#endif /* !__GNU__ */
+#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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