From: Nicholas Clark <nick@ccl4.org>
Date: Thu, 9 Sep 2004 15:54:18 +0000 (+0000)
Subject: A single version of B that supports 5.8 and 5.10
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=f5ba13079587260a0b8a2a6958a44e80adc29fe2;p=p5sagit%2Fp5-mst-13.2.git

A single version of B that supports 5.8 and 5.10

p4raw-id: //depot/perl@23300
---

diff --git a/ext/B/B.pm b/ext/B/B.pm
index 5961c07..0274711 100644
--- a/ext/B/B.pm
+++ b/ext/B/B.pm
@@ -7,7 +7,7 @@
 #
 package B;
 
-our $VERSION = '1.06';
+our $VERSION = '1.07';
 
 use XSLoader ();
 require Exporter;
@@ -36,7 +36,8 @@ use strict;
 @B::PVIV::ISA = qw(B::PV B::IV);
 @B::PVNV::ISA = qw(B::PV B::NV);
 @B::PVMG::ISA = 'B::PVNV';
-@B::PVLV::ISA = 'B::GV';
+# Change in the inheritance hierarchy post 5.8
+@B::PVLV::ISA = $] > 5.009 ? 'B::GV' : 'B::PVMG';
 @B::BM::ISA = 'B::PVMG';
 @B::AV::ISA = 'B::PVMG';
 @B::GV::ISA = 'B::PVMG';
@@ -529,7 +530,8 @@ using this module.
 B::IV, B::NV, B::RV, B::PV, B::PVIV, B::PVNV, B::PVMG, B::BM, B::PVLV,
 B::AV, B::HV, B::CV, B::GV, B::FM, B::IO. These classes correspond in
 the obvious way to the underlying C structures of similar names. The
-inheritance hierarchy mimics the underlying C "inheritance":
+inheritance hierarchy mimics the underlying C "inheritance". For 5.9 and
+later this is:
 
                              B::SV
                                |
@@ -555,6 +557,20 @@ inheritance hierarchy mimics the underlying C "inheritance":
                                       B::FM
 
 
+For 5.8 and earlier, PVLV is a direct subclass of PVMG, so the base of this
+diagram is
+
+                           |
+                        B::PVMG
+                           |
+         +------+-----+----+------+-----+-----+
+         |      |     |    |      |     |     |
+      B::PVLV B::BM B::AV B::GV B::HV B::CV B::IO
+                                        |
+                                        |
+                                      B::FM
+
+
 Access methods correspond to the underlying C macros for field access,
 usually with the leading "class indication" prefix removed (Sv, Av,
 Hv, ...). The leading prefix is only left in cases where its removal
diff --git a/ext/B/B.xs b/ext/B/B.xs
index 43b91fe..63f5a99 100644
--- a/ext/B/B.xs
+++ b/ext/B/B.xs
@@ -505,7 +505,7 @@ BOOT:
     specialsv_list[4] = pWARN_ALL;
     specialsv_list[5] = pWARN_NONE;
     specialsv_list[6] = pWARN_STD;
-#if PERL_VERSION <= 9
+#if PERL_VERSION <= 8
 #  define CVf_ASSERTION	0
 #endif
 #include "defsubs.h"
@@ -721,7 +721,16 @@ cchar(sv)
 void
 threadsv_names()
     PPCODE:
+#if PERL_VERSION <= 8
+# ifdef USE_5005THREADS
+	int i;
+	STRLEN len = strlen(PL_threadsv_names);
 
+	EXTEND(sp, len);
+	for (i = 0; i < len; i++)
+	    PUSHs(sv_2mortal(newSVpvn(&PL_threadsv_names[i], 1)));
+# endif
+#endif
 
 #define OP_next(o)	o->op_next
 #define OP_sibling(o)	o->op_sibling
diff --git a/ext/B/B/C.pm b/ext/B/B/C.pm
index 245f6f0..9279317 100644
--- a/ext/B/B/C.pm
+++ b/ext/B/B/C.pm
@@ -5,10 +5,13 @@
 #      You may distribute under the terms of either the GNU General Public
 #      License or the Artistic License, as specified in the README file.
 #
-package B::C::Section;
+
+package B::C;
 
 our $VERSION = '1.04';
 
+package B::C::Section;
+
 use B ();
 use base B::Section;
 
@@ -1433,6 +1436,14 @@ typedef struct {
     long	xcv_depth;	/* >= 2 indicates recursive call */
     AV *	xcv_padlist;
     CV *	xcv_outside;
+EOT
+    print <<'EOT' if $] < 5.009;
+#ifdef USE_5005THREADS
+    perl_mutex *xcv_mutexp;
+    struct perl_thread *xcv_owner;	/* current owner thread */
+#endif /* USE_5005THREADS */
+EOT
+    print <<'EOT';
     cv_flags_t	xcv_flags;
     U32		xcv_outside_seq; /* the COP sequence (at the point of our
 				  * compilation) in the lexically enclosing
diff --git a/ext/B/ramblings/runtime.porting b/ext/B/ramblings/runtime.porting
index f237cef..20d05b3 100644
--- a/ext/B/ramblings/runtime.porting
+++ b/ext/B/ramblings/runtime.porting
@@ -352,5 +352,6 @@ egrent
 getlogin
 syscall
 lock		6	1
+threadsv	6	2	unused if not USE_5005THREADS, absent post 5.8
 setstate	1	1	currently unused anywhere
 method_named	10	2
diff --git a/ext/B/t/lint.t b/ext/B/t/lint.t
index 04d8f83..2b49024 100644
--- a/ext/B/t/lint.t
+++ b/ext/B/t/lint.t
@@ -46,7 +46,7 @@ SKIP : {
 
     use Config;
     skip("Doesn't work with threaded perls",11)
-       if $Config{useithreads};
+       if $Config{useithreads} || ($] < 5.009 && $Config{use5005threads});
 
     runlint 'implicit-read', '1 for @ARGV', <<'RESULT', 'implicit-read in foreach';
 Implicit use of $_ in foreach at -e line 1