From: Vincent Pit <vince@profvince.com>
Date: Sun, 21 Sep 2008 11:58:05 +0000 (+0200)
Subject: Enable thread-safety for perls that just lacks MY_CXT_CLONE
X-Git-Tag: v0.21_01~6
X-Git-Url: http://git.vpit.fr/?a=commitdiff_plain;h=5841f65c4501de2869bdb1f5a8ef29a4f966bb7e;p=perl%2Fmodules%2FVariable-Magic.git

Enable thread-safety for perls that just lacks MY_CXT_CLONE
---

diff --git a/Magic.xs b/Magic.xs
index c692014..9145ab3 100644
--- a/Magic.xs
+++ b/Magic.xs
@@ -47,14 +47,21 @@
 # define VMG_MULTIPLICITY 0
 #endif
 
-#if VMG_MULTIPLICITY && defined(dMY_CXT) && defined(MY_CXT) && defined(START_MY_CXT) && defined(MY_CXT_INIT) && defined(MY_CXT_CLONE)
+#if VMG_MULTIPLICITY && defined(dMY_CXT) && defined(MY_CXT) && defined(START_MY_CXT) && defined(MY_CXT_INIT) && (defined(MY_CXT_CLONE) || defined(dMY_CXT_SV))
 # define VMG_THREADSAFE 1
+# ifndef MY_CXT_CLONE
+#  define MY_CXT_CLONE \
+    dMY_CXT_SV;                                                      \
+    my_cxt_t *my_cxtp = (my_cxt_t*)SvPVX(newSV(sizeof(my_cxt_t)-1)); \
+    Copy(INT2PTR(my_cxt_t*, SvUV(my_cxt_sv)), my_cxtp, 1, my_cxt_t); \
+    sv_setuv(my_cxt_sv, PTR2UV(my_cxtp))
+# endif
 #else
 # define VMG_THREADSAFE 0
 # undef  dMY_CXT
 # define dMY_CXT      dNOOP
 # undef  MY_CXT
-# define MY_CXT vmg_globaldata
+# define MY_CXT       vmg_globaldata
 # undef  START_MY_CXT
 # define START_MY_CXT STATIC my_cxt_t MY_CXT;
 # undef  MY_CXT_INIT