X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=hv.h;h=11a602c1b75e8efb12e06c686d6d0b10307e42e5;hb=65346fe1a9b07a3de1b94fead7e905d3a8dad1d5;hp=c8d8be623b9a2fe483b1b52ba122c2410f485403;hpb=ff68c7194e176ca1907544a3a65684b76834d0fe;p=p5sagit%2Fp5-mst-13.2.git

diff --git a/hv.h b/hv.h
index c8d8be6..11a602c 100644
--- a/hv.h
+++ b/hv.h
@@ -1,6 +1,6 @@
 /*    hv.h
  *
- *    Copyright (c) 1991-1994, Larry Wall
+ *    Copyright (c) 1991-1999, 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.
@@ -22,12 +22,13 @@ struct hek {
     char	hek_key[1];
 };
 
+/* This structure must match the beginning of struct xpvmg in sv.h. */
 struct xpvhv {
     char *	xhv_array;	/* pointer to malloced string */
     STRLEN	xhv_fill;	/* how full xhv_array currently is */
     STRLEN	xhv_max;	/* subscript of last element of xhv_array */
-    I32		xhv_keys;	/* how many elements in the array */
-    double	xnv_nv;		/* numeric value, if any */
+    IV		xhv_keys;	/* how many elements in the array */
+    NV		xnv_nv;		/* numeric value, if any */
     MAGIC*	xmg_magic;	/* magic for scalar array */
     HV*		xmg_stash;	/* class package */
 
@@ -39,12 +40,12 @@ struct xpvhv {
 
 #define PERL_HASH(hash,str,len) \
      STMT_START	{ \
-	register char *s_PeRlHaSh = str; \
+	register const char *s_PeRlHaSh = str; \
 	register I32 i_PeRlHaSh = len; \
 	register U32 hash_PeRlHaSh = 0; \
 	while (i_PeRlHaSh--) \
 	    hash_PeRlHaSh = hash_PeRlHaSh * 33 + *s_PeRlHaSh++; \
-	(hash) = hash_PeRlHaSh; \
+	(hash) = hash_PeRlHaSh + (hash_PeRlHaSh>>5); \
     } STMT_END
 
 
@@ -70,8 +71,6 @@ struct xpvhv {
 #define HvLAZYDEL_on(hv)	(SvFLAGS(hv) |= SVphv_LAZYDEL)
 #define HvLAZYDEL_off(hv)	(SvFLAGS(hv) &= ~SVphv_LAZYDEL)
 
-#ifdef OVERLOAD
-
 /* Maybe amagical: */
 /* #define HV_AMAGICmb(hv)      (SvFLAGS(hv) & (SVpgv_badAM | SVpgv_AM)) */
 
@@ -85,8 +84,6 @@ struct xpvhv {
 #define HV_badAMAGIC_off(hv) (SvFLAGS(hv) &= ~SVpgv_badAM)
 */
 
-#endif /* OVERLOAD */
-
 #define Nullhe Null(HE*)
 #define HeNEXT(he)		(he)->hent_next
 #define HeKEY_hek(he)		(he)->hent_hek
@@ -95,9 +92,11 @@ struct xpvhv {
 #define HeKLEN(he)		HEK_LEN(HeKEY_hek(he))
 #define HeVAL(he)		(he)->hent_val
 #define HeHASH(he)		HEK_HASH(HeKEY_hek(he))
-#define HePV(he)		((HeKLEN(he) == HEf_SVKEY) ?		\
-				 SvPV(HeKEY_sv(he),na) :		\
-				 HeKEY(he))
+#define HePV(he,lp)		((HeKLEN(he) == HEf_SVKEY) ?		\
+				 SvPV(HeKEY_sv(he),lp) :		\
+				 (((lp = HeKLEN(he)) >= 0) ?		\
+				  HeKEY(he) : Nullch))
+
 #define HeSVKEY(he)		((HeKEY(he) && 				\
 				  HeKLEN(he) == HEf_SVKEY) ?		\
 				 HeKEY_sv(he) : Nullsv)
@@ -105,13 +104,23 @@ struct xpvhv {
 #define HeSVKEY_force(he)	(HeKEY(he) ?				\
 				 ((HeKLEN(he) == HEf_SVKEY) ?		\
 				  HeKEY_sv(he) :			\
-				  sv_2mortal(newSVpv(HeKEY(he),		\
+				  sv_2mortal(newSVpvn(HeKEY(he),	\
 						     HeKLEN(he)))) :	\
-				 &sv_undef)
-#define HeSVKEY_set(he,sv)	(HeKEY_sv(he) = sv)
+				 &PL_sv_undef)
+#define HeSVKEY_set(he,sv)	((HeKLEN(he) = HEf_SVKEY), (HeKEY_sv(he) = sv))
 
 #define Nullhek Null(HEK*)
-#define HEK_BASESIZE		OFFSETOF(HEK, hek_key)
+#define HEK_BASESIZE		STRUCT_OFFSET(HEK, hek_key[0])
 #define HEK_HASH(hek)		(hek)->hek_hash
 #define HEK_LEN(hek)		(hek)->hek_len
 #define HEK_KEY(hek)		(hek)->hek_key
+
+#if defined(STRANGE_MALLOC) || defined(MYMALLOC)
+#  define PERL_HV_ARRAY_ALLOC_BYTES(size) ((size) * sizeof(HE*))
+#else
+#  define MALLOC_OVERHEAD 16
+#  define PERL_HV_ARRAY_ALLOC_BYTES(size) \
+			(((size) < 64)					\
+			 ? (size) * sizeof(HE*)				\
+			 : (size) * sizeof(HE*) * 2 - MALLOC_OVERHEAD)
+#endif