X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=sv.h;h=fcf92975f4e4d19767c5b6a122b812bdf62c8380;hb=3ee700d1417d4c874074ae89df62860d55ace0cc;hp=710664c912d72e75bd3b96179ac2e129fbe9c0cb;hpb=760ac839baf413929cd31cc32ffd6dba6b781a81;p=p5sagit%2Fp5-mst-13.2.git

diff --git a/sv.h b/sv.h
index 710664c..fcf9297 100644
--- a/sv.h
+++ b/sv.h
@@ -1,6 +1,6 @@
 /*    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.
@@ -70,17 +70,20 @@ struct io {
 
 #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)
 
@@ -126,15 +129,10 @@ struct io {
 #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 */
@@ -153,6 +151,13 @@ struct xpviv {
     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 */
@@ -216,6 +221,10 @@ 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 */
@@ -235,6 +244,12 @@ struct xpvfm {
     long	xcv_depth;		/* >= 2 indicates recursive call */
     AV *	xcv_padlist;
     CV *	xcv_outside;
+#ifdef USE_THREADS
+    perl_mutex *xcv_mutexp;	/* protects xcv_owner */
+    struct thread *xcv_owner;	/* current owner thread */
+#endif /* USE_THREADS */
+    cv_flags_t	xcv_flags;
+
     I32		xfm_lines;
 };
 
@@ -269,6 +284,7 @@ struct xpvio {
 #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. */
 
@@ -400,10 +416,6 @@ struct xpvio {
 #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)
@@ -413,6 +425,8 @@ struct xpvio {
 
 #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
@@ -472,33 +486,49 @@ struct xpvio {
 #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								\
@@ -516,21 +546,68 @@ I32 SvTRUE _((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))
+#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