/* sv.h
*
- * Copyright (c) 1991-2000, Larry Wall
+ * Copyright (c) 1991-2002, 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.
#endif
/*
+=head1 SV Flags
+
=for apidoc AmU||svtype
-An enum of flags for Perl types. These are found in the file B<sv.h>
+An enum of flags for Perl types. These are found in the file B<sv.h>
in the C<svtype> enum. Test these flags with the C<SvTYPE> macro.
=for apidoc AmU||SVt_PV
/* Using C's structural equivalence to help emulate C++ inheritance here... */
-struct STRUCT_SV {
+struct STRUCT_SV { /* struct sv { */
void* sv_any; /* pointer to something */
U32 sv_refcnt; /* how many references to us */
U32 sv_flags; /* what we are */
};
/*
+=head1 SV Manipulation Functions
+
=for apidoc Am|U32|SvREFCNT|SV* sv
Returns the value of the object's reference count.
#define SvFLAGS(sv) (sv)->sv_flags
#define SvREFCNT(sv) (sv)->sv_refcnt
-#ifdef USE_THREADS
+#ifdef USE_5005THREADS
# if defined(VMS)
# define ATOMIC_INC(count) __ATOMIC_INCREMENT_LONG(&count)
#else
# define ATOMIC_INC(count) (++count)
# define ATOMIC_DEC_AND_TEST(res, count) (res = (--count == 0))
-#endif /* USE_THREADS */
+#endif /* USE_5005THREADS */
#ifdef __GNUC__
# define SvREFCNT_inc(sv) \
nsv; \
})
#else
-# if defined(CRIPPLED_CC) || defined(USE_THREADS)
+# ifdef USE_5005THREADS
# if defined(VMS) && defined(__ALPHA)
# define SvREFCNT_inc(sv) \
(PL_Sv=(SV*)(sv), (PL_Sv && __ATOMIC_INCREMENT_LONG(&(SvREFCNT(PL_Sv)))), (SV *)PL_Sv)
# endif
#endif
-#define SvREFCNT_dec(sv) sv_free((SV*)sv)
+#define SvREFCNT_dec(sv) sv_free((SV*)(sv))
#define SVTYPEMASK 0xff
#define SvTYPE(sv) ((sv)->sv_flags & SVTYPEMASK)
#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_BREAK 0x00400000 /* refcnt is artificially low - used
+ * by SV's in final arena cleanup */
#define SVf_READONLY 0x00800000 /* may not be modified */
#define SVp_POK 0x04000000 /* has valid non-public pointer value */
#define SVp_SCREAM 0x08000000 /* has been studied? */
-#define SVf_UTF8 0x20000000 /* SvPVX is UTF-8 encoded */
+#define SVf_UTF8 0x20000000 /* SvPV is UTF-8 encoded */
-#define SVf_THINKFIRST (SVf_READONLY|SVf_ROK|SVf_FAKE|SVf_UTF8)
+#define SVf_THINKFIRST (SVf_READONLY|SVf_ROK|SVf_FAKE)
#define SVf_OK (SVf_IOK|SVf_NOK|SVf_POK|SVf_ROK| \
SVp_IOK|SVp_NOK|SVp_POK)
/* SVpad_OUR may be set on SVt_PV{NV,MG,GV} types */
#define SVpad_OUR 0x80000000 /* pad name is "our" instead of "my" */
+#define SVpad_TYPED 0x40000000 /* Typed Lexical */
#define SVf_IVisUV 0x80000000 /* use XPVUV instead of XPVIV */
#define SVphv_SHAREKEYS 0x20000000 /* keys live on shared string table */
#define SVphv_LAZYDEL 0x40000000 /* entry in xhv_eiter must be deleted */
+#define SVphv_HASKFLAGS 0x80000000 /* keys have flag byte after hash */
#define SVprv_WEAKREF 0x80000000 /* Weak reference */
HV * xcv_stash;
OP * xcv_start;
OP * xcv_root;
- void (*xcv_xsub)(pTHXo_ CV*);
+ void (*xcv_xsub)(pTHX_ CV*);
ANY xcv_xsubany;
GV * xcv_gv;
char * xcv_file;
long xcv_depth; /* >= 2 indicates recursive call */
AV * xcv_padlist;
CV * xcv_outside;
-#ifdef USE_THREADS
+#ifdef USE_5005THREADS
perl_mutex *xcv_mutexp; /* protects xcv_owner */
struct perl_thread *xcv_owner; /* current owner thread */
-#endif /* USE_THREADS */
+#endif /* USE_5005THREADS */
cv_flags_t xcv_flags;
- I32 xfm_lines;
+ IV xfm_lines;
};
struct xpvio {
DIR * xiou_dirp; /* for opendir, readdir, etc */
void * xiou_any; /* for alignment */
} xio_dirpu;
- long xio_lines; /* $. */
- long xio_page; /* $% */
- long xio_page_len; /* $= */
- long xio_lines_left; /* $- */
+ IV xio_lines; /* $. */
+ IV xio_page; /* $% */
+ IV xio_page_len; /* $= */
+ IV xio_lines_left; /* $- */
char * xio_top_name; /* $^ */
GV * xio_top_gv; /* $^ */
char * xio_fmt_name; /* $~ */
=for apidoc Am|void|SvIOK_UV|SV* sv
Returns a boolean indicating whether the SV contains an unsigned integer.
+=for apidoc Am|void|SvUOK|SV* sv
+Returns a boolean indicating whether the SV contains an unsigned integer.
+
=for apidoc Am|void|SvIOK_notUV|SV* sv
-Returns a boolean indicating whether the SV contains an signed integer.
+Returns a boolean indicating whether the SV contains a signed integer.
=for apidoc Am|bool|SvNOK|SV* sv
Returns a boolean indicating whether the SV contains a double.
=for apidoc Am|void|SvPOK_only|SV* sv
Tells an SV that it is a string and disables all other OK bits.
+Will also turn off the UTF8 status.
+
+=for apidoc Am|bool|SvVOK|SV* sv
+Returns a boolean indicating whether the SV contains a v-string.
=for apidoc Am|bool|SvOOK|SV* sv
Returns a boolean indicating whether the SvIVX is a valid offset value for
Dereferences an RV to return the SV.
=for apidoc Am|IV|SvIVX|SV* sv
-Returns the integer which is stored in the SV, assuming SvIOK is
-true.
+Returns the raw value in the SV's IV slot, without checks or conversions.
+Only use when you are sure SvIOK is true. See also C<SvIV()>.
=for apidoc Am|UV|SvUVX|SV* sv
-Returns the unsigned integer which is stored in the SV, assuming SvIOK is
-true.
+Returns the raw value in the SV's UV slot, without checks or conversions.
+Only use when you are sure SvIOK is true. See also C<SvUV()>.
=for apidoc Am|NV|SvNVX|SV* sv
-Returns the double which is stored in the SV, assuming SvNOK is
-true.
+Returns the raw value in the SV's NV slot, without checks or conversions.
+Only use when you are sure SvNOK is true. See also C<SvNV()>.
=for apidoc Am|char*|SvPVX|SV* sv
-Returns a pointer to the string in the SV. The SV must contain a
+Returns a pointer to the physical string in the SV. The SV must contain a
string.
=for apidoc Am|STRLEN|SvCUR|SV* sv
#define SvOKp(sv) (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK))
#define SvIOKp(sv) (SvFLAGS(sv) & SVp_IOK)
-#define SvIOKp_on(sv) ((void)SvOOK_off(sv), SvFLAGS(sv) |= SVp_IOK)
+#define SvIOKp_on(sv) (SvRELEASE_IVX(sv), \
+ SvFLAGS(sv) |= SVp_IOK)
#define SvNOKp(sv) (SvFLAGS(sv) & SVp_NOK)
#define SvNOKp_on(sv) (SvFLAGS(sv) |= SVp_NOK)
#define SvPOKp(sv) (SvFLAGS(sv) & SVp_POK)
#define SvPOKp_on(sv) (SvFLAGS(sv) |= SVp_POK)
#define SvIOK(sv) (SvFLAGS(sv) & SVf_IOK)
-#define SvIOK_on(sv) ((void)SvOOK_off(sv), \
+#define SvIOK_on(sv) (SvRELEASE_IVX(sv), \
SvFLAGS(sv) |= (SVf_IOK|SVp_IOK))
#define SvIOK_off(sv) (SvFLAGS(sv) &= ~(SVf_IOK|SVp_IOK|SVf_IVisUV))
#define SvIOK_only(sv) ((void)SvOK_off(sv), \
#define SvIOK_UV(sv) ((SvFLAGS(sv) & (SVf_IOK|SVf_IVisUV)) \
== (SVf_IOK|SVf_IVisUV))
+#define SvUOK(sv) SvIOK_UV(sv)
#define SvIOK_notUV(sv) ((SvFLAGS(sv) & (SVf_IOK|SVf_IVisUV)) \
== SVf_IOK)
Returns a boolean indicating whether the SV contains UTF-8 encoded data.
=for apidoc Am|void|SvUTF8_on|SV *sv
-Tells an SV that it is a string and encoded in UTF8. Do not use frivolously.
+Turn on the UTF8 status of an SV (the data is not changed, just the flag).
+Do not use frivolously.
=for apidoc Am|void|SvUTF8_off|SV *sv
Unsets the UTF8 status of an SV.
=for apidoc Am|void|SvPOK_only_UTF8|SV* sv
-Tells an SV that it is a UTF8 string (do not use frivolously)
-and disables all other OK bits.
-
+Tells an SV that it is a string and disables all other OK bits,
+and leaves the UTF8 status as it was.
+
=cut
*/
SVf_IVisUV), \
SvFLAGS(sv) |= (SVf_POK|SVp_POK))
+#define SvVOK(sv) (SvMAGICAL(sv) && mg_find(sv,'V'))
#define SvOOK(sv) (SvFLAGS(sv) & SVf_OOK)
#define SvOOK_on(sv) ((void)SvIOK_off(sv), SvFLAGS(sv) |= SVf_OOK)
#define SvOOK_off(sv) (SvOOK(sv) && sv_backoff(sv))
#define SvAMAGIC_on(sv) (SvFLAGS(sv) |= SVf_AMAGIC)
#define SvAMAGIC_off(sv) (SvFLAGS(sv) &= ~SVf_AMAGIC)
-#define SvGAMAGIC(sv) (SvFLAGS(sv) & (SVs_GMG|SVf_AMAGIC))
+#define SvGAMAGIC(sv) (SvFLAGS(sv) & (SVs_GMG|SVf_AMAGIC))
/*
#define Gv_AMG(stash) \
#define SvVALID_on(sv) (SvFLAGS(sv) |= SVpbm_VALID)
#define SvVALID_off(sv) (SvFLAGS(sv) &= ~SVpbm_VALID)
+#ifdef USE_ITHREADS
+/* The following uses the FAKE flag to show that a regex pointer is infact
+ its own offset in the regexpad for ithreads */
+#define SvREPADTMP(sv) (SvFLAGS(sv) & SVf_FAKE)
+#define SvREPADTMP_on(sv) (SvFLAGS(sv) |= SVf_FAKE)
+#define SvREPADTMP_off(sv) (SvFLAGS(sv) &= ~SVf_FAKE)
+#endif
+
#define SvRV(sv) ((XRV*) SvANY(sv))->xrv_rv
#define SvRVx(sv) SvRV(sv)
#define SvMAGIC(sv) ((XPVMG*) SvANY(sv))->xmg_magic
#define SvSTASH(sv) ((XPVMG*) SvANY(sv))->xmg_stash
+/* Ask a scalar nicely to try to become an IV, if possible.
+ Not guaranteed to stay returning void */
+/* Macro won't actually call sv_2iv if already IOK */
+#define SvIV_please(sv) \
+ STMT_START {if (!SvIOKp(sv) && (SvNOK(sv) || SvPOK(sv))) \
+ (void) SvIV(sv); } STMT_END
#define SvIV_set(sv, val) \
STMT_START { assert(SvTYPE(sv) == SVt_IV || SvTYPE(sv) >= SVt_PVIV); \
(((XPVIV*) SvANY(sv))->xiv_iv = val); } STMT_END
/*
=for apidoc Am|char*|SvPV_force|SV* sv|STRLEN len
-Like <SvPV> but will force the SV into becoming a string (SvPOK). You want
-force if you are going to update the SvPVX directly.
+Like C<SvPV> but will force the SV into containing just a string
+(C<SvPOK_only>). You want force if you are going to update the C<SvPVX>
+directly.
+
+=for apidoc Am|char*|SvPV_force_nomg|SV* sv|STRLEN len
+Like C<SvPV> but will force the SV into containing just a string
+(C<SvPOK_only>). You want force if you are going to update the C<SvPVX>
+directly. Doesn't process magic.
=for apidoc Am|char*|SvPV|SV* sv|STRLEN len
-Returns a pointer to the string in the SV, or a stringified form of the SV
-if the SV does not contain a string. Handles 'get' magic.
+Returns a pointer to the string in the SV, or a stringified form of
+the SV if the SV does not contain a string. The SV may cache the
+stringified version becoming C<SvPOK>. Handles 'get' magic. See also
+C<SvPVx> for a version which guarantees to evaluate sv only once.
+
+=for apidoc Am|char*|SvPVx|SV* sv|STRLEN len
+A version of C<SvPV> which guarantees to evaluate sv only once.
=for apidoc Am|char*|SvPV_nolen|SV* sv
-Returns a pointer to the string in the SV, or a stringified form of the SV
-if the SV does not contain a string. Handles 'get' magic.
+Returns a pointer to the string in the SV, or a stringified form of
+the SV if the SV does not contain a string. The SV may cache the
+stringified form becoming C<SvPOK>. Handles 'get' magic.
=for apidoc Am|IV|SvIV|SV* sv
-Coerces the given SV to an integer and returns it.
+Coerces the given SV to an integer and returns it. See C<SvIVx> for a
+version which guarantees to evaluate sv only once.
+
+=for apidoc Am|IV|SvIVx|SV* sv
+Coerces the given SV to an integer and returns it. Guarantees to evaluate
+sv only once. Use the more efficient C<SvIV> otherwise.
=for apidoc Am|NV|SvNV|SV* sv
-Coerce the given SV to a double and return it.
+Coerce the given SV to a double and return it. See C<SvNVx> for a version
+which guarantees to evaluate sv only once.
+
+=for apidoc Am|NV|SvNVx|SV* sv
+Coerces the given SV to a double and returns it. Guarantees to evaluate
+sv only once. Use the more efficient C<SvNV> otherwise.
=for apidoc Am|UV|SvUV|SV* sv
-Coerces the given SV to an unsigned integer and returns it.
+Coerces the given SV to an unsigned integer and returns it. See C<SvUVx>
+for a version which guarantees to evaluate sv only once.
+
+=for apidoc Am|UV|SvUVx|SV* sv
+Coerces the given SV to an unsigned integer and returns it. Guarantees to
+evaluate sv only once. Use the more efficient C<SvUV> otherwise.
=for apidoc Am|bool|SvTRUE|SV* sv
Returns a boolean indicating whether Perl would evaluate the SV as true or
false, defined or undefined. Does not handle 'get' magic.
-=cut
-*/
+=for apidoc Am|char*|SvPVutf8_force|SV* sv|STRLEN len
+Like C<SvPV_force>, but converts sv to utf8 first if necessary.
-#define SvPV_force(sv, lp) sv_pvn_force(sv, &lp)
-#define SvPV(sv, lp) sv_pvn(sv, &lp)
-#define SvPV_nolen(sv) sv_pv(sv)
+=for apidoc Am|char*|SvPVutf8|SV* sv|STRLEN len
+Like C<SvPV>, but converts sv to utf8 first if necessary.
-#define SvPVutf8_force(sv, lp) sv_pvutf8n_force(sv, &lp)
-#define SvPVutf8(sv, lp) sv_pvutf8n(sv, &lp)
-#define SvPVutf8_nolen(sv) sv_pvutf8(sv)
+=for apidoc Am|char*|SvPVutf8_nolen|SV* sv
+Like C<SvPV_nolen>, but converts sv to utf8 first if necessary.
-#define SvPVbyte_force(sv, lp) sv_pvbyte_force(sv, &lp)
-#define SvPVbyte(sv, lp) sv_pvbyten(sv, &lp)
-#define SvPVbyte_nolen(sv) sv_pvbyte(sv)
+=for apidoc Am|char*|SvPVbyte_force|SV* sv|STRLEN len
+Like C<SvPV_force>, but converts sv to byte representation first if necessary.
-#define SvPVx(sv, lp) sv_pvn(sv, &lp)
-#define SvPVx_force(sv, lp) sv_pvn_force(sv, &lp)
-#define SvPVutf8x(sv, lp) sv_pvutf8n(sv, &lp)
-#define SvPVutf8x_force(sv, lp) sv_pvutf8n_force(sv, &lp)
-#define SvPVbytex(sv, lp) sv_pvbyten(sv, &lp)
-#define SvPVbytex_force(sv, lp) sv_pvbyten_force(sv, &lp)
+=for apidoc Am|char*|SvPVbyte|SV* sv|STRLEN len
+Like C<SvPV>, but converts sv to byte representation first if necessary.
+
+=for apidoc Am|char*|SvPVbyte_nolen|SV* sv
+Like C<SvPV_nolen>, but converts sv to byte representation first if necessary.
-#define SvIVx(sv) sv_iv(sv)
-#define SvUVx(sv) sv_uv(sv)
-#define SvNVx(sv) sv_nv(sv)
+=for apidoc Am|char*|SvPVutf8x_force|SV* sv|STRLEN len
+Like C<SvPV_force>, but converts sv to utf8 first if necessary.
+Guarantees to evaluate sv only once; use the more efficient C<SvPVutf8_force>
+otherwise.
-#define SvTRUEx(sv) sv_true(sv)
+=for apidoc Am|char*|SvPVutf8x|SV* sv|STRLEN len
+Like C<SvPV>, but converts sv to utf8 first if necessary.
+Guarantees to evaluate sv only once; use the more efficient C<SvPVutf8>
+otherwise.
-#define SvIV(sv) SvIVx(sv)
-#define SvNV(sv) SvNVx(sv)
-#define SvUV(sv) SvUVx(sv)
-#define SvTRUE(sv) SvTRUEx(sv)
+=for apidoc Am|char*|SvPVbytex_force|SV* sv|STRLEN len
+Like C<SvPV_force>, but converts sv to byte representation first if necessary.
+Guarantees to evaluate sv only once; use the more efficient C<SvPVbyte_force>
+otherwise.
-#ifndef CRIPPLED_CC
-/* redefine some things to more efficient inlined versions */
+=for apidoc Am|char*|SvPVbytex|SV* sv|STRLEN len
+Like C<SvPV>, but converts sv to byte representation first if necessary.
+Guarantees to evaluate sv only once; use the more efficient C<SvPVbyte>
+otherwise.
+
+
+=cut
+*/
/* Let us hope that bitmaps for UV and IV are the same */
-#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))
-#undef SvPV
-#define SvPV(sv, lp) \
+/* ----*/
+
+#define SvPV(sv, lp) SvPV_flags(sv, lp, SV_GMAGIC)
+
+#define SvPV_flags(sv, lp, flags) \
((SvFLAGS(sv) & (SVf_POK)) == SVf_POK \
- ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_2pv(sv, &lp))
+ ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_2pv_flags(sv, &lp, flags))
+
+#define SvPV_force(sv, lp) SvPV_force_flags(sv, lp, SV_GMAGIC)
+#define SvPV_force_nomg(sv, lp) SvPV_force_flags(sv, lp, 0)
-#undef SvPV_force
-#define SvPV_force(sv, lp) \
+#define SvPV_force_flags(sv, lp, flags) \
((SvFLAGS(sv) & (SVf_POK|SVf_THINKFIRST)) == SVf_POK \
- ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_pvn_force(sv, &lp))
+ ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_pvn_force_flags(sv, &lp, flags))
-#undef SvPV_nolen
#define SvPV_nolen(sv) \
((SvFLAGS(sv) & (SVf_POK)) == SVf_POK \
? SvPVX(sv) : sv_2pv_nolen(sv))
-#undef SvPVutf8
-#define SvPVutf8(sv, lp) \
- ((SvFLAGS(sv) & (SVf_POK|SVf_UTF8)) == (SVf_POK|SVf_UTF8) \
- ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_2pvutf8(sv, &lp))
+#define SvPV_nomg(sv, lp) SvPV_flags(sv, lp, 0)
-#undef SvPVutf8_force
-#define SvPVutf8_force(sv, lp) \
- ((SvFLAGS(sv) & (SVf_POK|SVf_THINKFIRST)) == (SVf_POK|SVf_UTF8) \
- ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_pvutf8n_force(sv, &lp))
+/* ----*/
-#undef SvPVutf8_nolen
-#define SvPVutf8_nolen(sv) \
- ((SvFLAGS(sv) & (SVf_POK|SVf_UTF8)) == (SVf_POK|SVf_UTF8)\
- ? SvPVX(sv) : sv_2pvutf8_nolen(sv))
-
-#undef SvPVutf8
#define SvPVutf8(sv, lp) \
((SvFLAGS(sv) & (SVf_POK|SVf_UTF8)) == (SVf_POK|SVf_UTF8) \
? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_2pvutf8(sv, &lp))
-#undef SvPVutf8_force
#define SvPVutf8_force(sv, lp) \
((SvFLAGS(sv) & (SVf_POK|SVf_THINKFIRST)) == (SVf_POK|SVf_UTF8) \
? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_pvutf8n_force(sv, &lp))
-#undef SvPVutf8_nolen
+
#define SvPVutf8_nolen(sv) \
((SvFLAGS(sv) & (SVf_POK|SVf_UTF8)) == (SVf_POK|SVf_UTF8)\
? SvPVX(sv) : sv_2pvutf8_nolen(sv))
-#undef SvPVbyte
+/* ----*/
+
#define SvPVbyte(sv, lp) \
((SvFLAGS(sv) & (SVf_POK|SVf_UTF8)) == (SVf_POK) \
? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_2pvbyte(sv, &lp))
-#undef SvPVbyte_force
#define SvPVbyte_force(sv, lp) \
((SvFLAGS(sv) & (SVf_POK|SVf_UTF8|SVf_THINKFIRST)) == (SVf_POK) \
? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_pvbyte_force(sv, &lp))
-#undef SvPVbyte_nolen
#define SvPVbyte_nolen(sv) \
((SvFLAGS(sv) & (SVf_POK|SVf_UTF8)) == (SVf_POK)\
? SvPVX(sv) : sv_2pvbyte_nolen(sv))
+
+/* define FOOx(): idempotent versions of FOO(). If possible, use a local
+ * var to evaluate the arg once; failing that, use a global if possible;
+ * failing that, call a function to do the work
+ */
+
+#define SvPVx_force(sv, lp) sv_pvn_force(sv, &lp)
+#define SvPVutf8x_force(sv, lp) sv_pvutf8n_force(sv, &lp)
+#define SvPVbytex_force(sv, lp) sv_pvbyten_force(sv, &lp)
+
#ifdef __GNUC__
-# undef SvIVx
-# undef SvUVx
-# undef SvNVx
-# undef SvPVx
-# undef SvPVutf8x
-# undef SvPVbytex
-# 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); })
? SvNVX(sv) != 0.0 \
: sv_2bool(sv) )
# define SvTRUEx(sv) ({SV *nsv = (sv); SvTRUE(nsv); })
+
#else /* __GNUC__ */
-#ifndef USE_THREADS
+
+# ifdef USE_5005THREADS
+# 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 SvPVutf8x(sv, lp) sv_pvutf8n(sv, &lp)
+# define SvPVbytex(sv, lp) sv_pvbyten(sv, &lp)
+# define SvTRUE(sv) SvTRUEx(sv)
+# define SvTRUEx(sv) sv_true(sv)
+
+# else /* USE_5005THREADS */
+
/* 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 SvPVutf8x
-# undef SvPVbytex
-# undef SvTRUE
-# undef SvTRUEx
-# define SvIVx(sv) ((PL_Sv = (sv)), SvIV(PL_Sv))
-# define SvUVx(sv) ((PL_Sv = (sv)), SvUV(PL_Sv))
-# define SvNVx(sv) ((PL_Sv = (sv)), SvNV(PL_Sv))
-# define SvPVx(sv, lp) ((PL_Sv = (sv)), SvPV(PL_Sv, lp))
-# define SvPVutf8x(sv, lp) ((PL_Sv = (sv)), SvPVutf8(PL_Sv, lp))
-# define SvPVbytex(sv, lp) ((PL_Sv = (sv)), SvPVbyte(PL_Sv, lp))
-# define SvTRUE(sv) ( \
+# define SvIVx(sv) ((PL_Sv = (sv)), SvIV(PL_Sv))
+# define SvUVx(sv) ((PL_Sv = (sv)), SvUV(PL_Sv))
+# define SvNVx(sv) ((PL_Sv = (sv)), SvNV(PL_Sv))
+# define SvPVx(sv, lp) ((PL_Sv = (sv)), SvPV(PL_Sv, lp))
+# define SvPVutf8x(sv, lp) ((PL_Sv = (sv)), SvPVutf8(PL_Sv, lp))
+# define SvPVbytex(sv, lp) ((PL_Sv = (sv)), SvPVbyte(PL_Sv, lp))
+# define SvTRUE(sv) ( \
!sv \
? 0 \
: SvPOK(sv) \
: SvNOK(sv) \
? SvNVX(sv) != 0.0 \
: sv_2bool(sv) )
-# define SvTRUEx(sv) ((PL_Sv = (sv)), SvTRUE(PL_Sv))
-#endif /* !USE_THREADS */
-#endif /* !__GNU__ */
-#endif /* !CRIPPLED_CC */
+# define SvTRUEx(sv) ((PL_Sv = (sv)), SvTRUE(PL_Sv))
+# endif /* USE_5005THREADS */
+#endif /* __GNU__ */
+
+#define SvIsCOW(sv) ((SvFLAGS(sv) & (SVf_FAKE | SVf_READONLY)) == \
+ (SVf_FAKE | SVf_READONLY))
+#define SvIsCOW_shared_hash(sv) (SvIsCOW(sv) && SvLEN(sv) == 0)
+
+/* flag values for sv_*_flags functions */
+#define SV_IMMEDIATE_UNREF 1
+#define SV_GMAGIC 2
+#define SV_COW_DROP_PV 4
+
+/* We are about to replace the SV's current value. So if it's copy on write
+ we need to normalise it. Use the SV_COW_DROP_PV flag hint to say that
+ the value is about to get thrown away, so drop the PV rather than go to
+ the effort of making a read-write copy only for it to get immediately
+ discarded. */
+
+#define SV_CHECK_THINKFIRST_COW_DROP(sv) if (SvTHINKFIRST(sv)) \
+ sv_force_normal_flags(sv, SV_COW_DROP_PV)
+
+#ifdef PERL_COPY_ON_WRITE
+# define SvRELEASE_IVX(sv) ((void)((SvFLAGS(sv) & (SVf_OOK|SVf_READONLY|SVf_FAKE)) \
+ && sv_release_IVX(sv)))
+# define SvIsCOW_normal(sv) (SvIsCOW(sv) && SvLEN(sv))
+#else
+# define SvRELEASE_IVX(sv) ((void)SvOOK_off(sv))
+#endif /* PERL_COPY_ON_WRITE */
+
+#define SV_CHECK_THINKFIRST(sv) if (SvTHINKFIRST(sv)) \
+ sv_force_normal_flags(sv, 0)
+
+
+/* all these 'functions' are now just macros */
+
+#define sv_pv(sv) SvPV_nolen(sv)
+#define sv_pvutf8(sv) SvPVutf8_nolen(sv)
+#define sv_pvbyte(sv) SvPVbyte_nolen(sv)
+
+#define sv_pvn_force_nomg(sv, lp) sv_pvn_force_flags(sv, lp, 0)
+#define sv_utf8_upgrade_nomg(sv) sv_utf8_upgrade_flags(sv, 0)
+#define sv_catpvn_nomg(dsv, sstr, slen) sv_catpvn_flags(dsv, sstr, slen, 0)
+#define sv_setsv(dsv, ssv) sv_setsv_flags(dsv, ssv, SV_GMAGIC)
+#define sv_setsv_nomg(dsv, ssv) sv_setsv_flags(dsv, ssv, 0)
+#define sv_catsv(dsv, ssv) sv_catsv_flags(dsv, ssv, SV_GMAGIC)
+#define sv_catsv_nomg(dsv, ssv) sv_catsv_flags(dsv, ssv, 0)
+#define sv_catpvn(dsv, sstr, slen) sv_catpvn_flags(dsv, sstr, slen, SV_GMAGIC)
+#define sv_2pv(sv, lp) sv_2pv_flags(sv, lp, SV_GMAGIC)
+#define sv_2pv_nomg(sv, lp) sv_2pv_flags(sv, lp, 0)
+#define sv_pvn_force(sv, lp) sv_pvn_force_flags(sv, lp, SV_GMAGIC)
+#define sv_utf8_upgrade(sv) sv_utf8_upgrade_flags(sv, SV_GMAGIC)
+
/*
=for apidoc Am|SV*|newRV_inc|SV* sv
/* the following macros update any magic values this sv is associated with */
/*
+=head1 Magical Functions
+
=for apidoc Am|void|SvGETMAGIC|SV* sv
Invokes C<mg_get> on an SV if it has 'get' magic. This macro evaluates its
argument more than once.
Calls a non-destructive version of C<sv_setsv> if dsv is not the same as
ssv. May evaluate arguments more than once.
-=for apidoc Am|void|SvGROW|SV* sv|STRLEN len
+=for apidoc Am|void|SvSetMagicSV|SV* dsb|SV* ssv
+Like C<SvSetSV>, but does any set magic required afterwards.
+
+=for apidoc Am|void|SvSetMagicSV_nosteal|SV* dsv|SV* ssv
+Like C<SvSetMagicSV>, but does any set magic required afterwards.
+
+=for apidoc Am|void|SvSHARE|SV* sv
+Arranges for sv to be shared between threads if a suitable module
+has been loaded.
+
+=for apidoc Am|void|SvLOCK|SV* sv
+Arranges for a mutual exclusion lock to be obtained on sv if a suitable module
+has been loaded.
+
+=for apidoc Am|void|SvUNLOCK|SV* sv
+Releases a mutual exclusion lock on sv if a suitable module
+has been loaded.
+
+=head1 SV Manipulation Functions
+
+=for apidoc Am|char *|SvGROW|SV* sv|STRLEN len
Expands the character buffer in the SV so that it has room for the
indicated number of bytes (remember to reserve space for an extra trailing
-NUL character). Calls C<sv_grow> to perform the expansion if necessary.
+NUL character). Calls C<sv_grow> to perform the expansion if necessary.
Returns a pointer to the character buffer.
=cut
*/
+#define SvSHARE(sv) CALL_FPTR(PL_sharehook)(aTHX_ sv)
+#define SvLOCK(sv) CALL_FPTR(PL_lockhook)(aTHX_ sv)
+#define SvUNLOCK(sv) CALL_FPTR(PL_unlockhook)(aTHX_ sv)
+
#define SvGETMAGIC(x) STMT_START { if (SvGMAGICAL(x)) mg_get(x); } STMT_END
#define SvSETMAGIC(x) STMT_START { if (SvSMAGICAL(x)) mg_set(x); } STMT_END
#define SvSetMagicSV_nosteal(dst,src) \
SvSetSV_nosteal_and(dst,src,SvSETMAGIC(dst))
-#ifdef DEBUGGING
+#if !defined(SKIP_DEBUGGING)
#define SvPEEK(sv) sv_peek(sv)
#else
#define SvPEEK(sv) ""
#define SvGROW(sv,len) (SvLEN(sv) < (len) ? sv_grow(sv,len) : SvPVX(sv))
#define Sv_Grow sv_grow
-#define SV_IMMEDIATE_UNREF 1
+#define CLONEf_COPY_STACKS 1
+#define CLONEf_KEEP_PTR_TABLE 2
+#define CLONEf_CLONE_HOST 4
+
+struct clone_params {
+ AV* stashes;
+ UV flags;
+ PerlInterpreter *proto_perl;
+};
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