Compare commits
No commits in common. 'c8-stream-5.26' and 'c9' have entirely different histories.
c8-stream-
...
c9
@ -1 +1 @@
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SOURCES/threads-shared-1.58.tar.gz
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SOURCES/threads-shared-1.59.tar.gz
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@ -1 +1 @@
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f3ce7a3b5086eb614aee3aa13607fdd2ec8b86b4 SOURCES/threads-shared-1.58.tar.gz
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ae80152e37290e7a85890d0180f964cb5a01f4c1 SOURCES/threads-shared-1.59.tar.gz
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@ -0,0 +1,110 @@
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From 2ec58402d05eb12d0b9387963941f1e445d9aa5b Mon Sep 17 00:00:00 2001
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From: Jitka Plesnikova <jplesnik@redhat.com>
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Date: Fri, 26 Apr 2019 15:00:30 +0200
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Subject: [PATCH] Upgrade to 1.60
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---
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lib/threads/shared.pm | 4 ++--
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shared.xs | 39 +++++++++++++++++++++++++++++++++++++++
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2 files changed, 41 insertions(+), 2 deletions(-)
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diff --git a/lib/threads/shared.pm b/lib/threads/shared.pm
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index f7e5ff8..45ad154 100644
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--- a/lib/threads/shared.pm
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+++ b/lib/threads/shared.pm
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@@ -8,7 +8,7 @@ use Config;
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use Scalar::Util qw(reftype refaddr blessed);
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-our $VERSION = '1.59'; # Please update the pod, too.
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+our $VERSION = '1.60'; # Please update the pod, too.
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my $XS_VERSION = $VERSION;
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$VERSION = eval $VERSION;
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@@ -196,7 +196,7 @@ threads::shared - Perl extension for sharing data structures between threads
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=head1 VERSION
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-This document describes threads::shared version 1.59
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+This document describes threads::shared version 1.60
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=head1 SYNOPSIS
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diff --git a/shared.xs b/shared.xs
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index d0f7d1e..6cdf094 100644
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--- a/shared.xs
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+++ b/shared.xs
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@@ -115,6 +115,17 @@
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* without the prefix (e.g., sv, tmp or obj).
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*/
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+/* this is lower overhead than warn() and less likely to interfere
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+ with other parts of perl (like with the debugger.)
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+*/
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+#ifdef SHARED_TRACE_LOCKS
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+# define TRACE_LOCK(x) DEBUG_U(x)
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+# define TRACE_LOCKv(x) DEBUG_Uv(x)
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+#else
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+# define TRACE_LOCK(x)
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+# define TRACE_LOCKv(x)
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+#endif
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+
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#define PERL_NO_GET_CONTEXT
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#include "EXTERN.h"
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#include "perl.h"
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@@ -211,8 +222,24 @@ recursive_lock_release(pTHX_ recursive_lock_t *lock)
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if (--lock->locks == 0) {
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lock->owner = NULL;
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COND_SIGNAL(&lock->cond);
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+ TRACE_LOCK(
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+ PerlIO_printf(Perl_debug_log, "shared lock released %p for %p at %s:%d\n",
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+ lock, aTHX, CopFILE(PL_curcop), CopLINE(PL_curcop))
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+ );
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+ }
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+ else {
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+ TRACE_LOCKv(
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+ PerlIO_printf(Perl_debug_log, "shared lock unbump %p for %p at %s:%d\n",
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+ lock, aTHX, CopFILE(PL_curcop), CopLINE(PL_curcop))
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+ );
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}
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}
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+ else {
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+ TRACE_LOCK(
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+ PerlIO_printf(Perl_debug_log, "bad shared lock release %p for %p (owned by %p) at %s:%d\n",
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+ lock, aTHX, lock->owner, CopFILE(PL_curcop), CopLINE(PL_curcop))
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+ );
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+ }
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MUTEX_UNLOCK(&lock->mutex);
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}
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@@ -224,8 +251,16 @@ recursive_lock_acquire(pTHX_ recursive_lock_t *lock, const char *file, int line)
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assert(aTHX);
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MUTEX_LOCK(&lock->mutex);
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if (lock->owner == aTHX) {
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+ TRACE_LOCKv(
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+ PerlIO_printf(Perl_debug_log, "shared lock bump %p (%p) at %s:%d\n",
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+ lock, lock->owner, CopFILE(PL_curcop), CopLINE(PL_curcop))
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+ );
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lock->locks++;
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} else {
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+ TRACE_LOCK(
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+ PerlIO_printf(Perl_debug_log, "shared lock try %p for %p (owned by %p) at %s:%d\n",
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+ lock, aTHX, lock->owner, CopFILE(PL_curcop), CopLINE(PL_curcop))
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+ );
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while (lock->owner) {
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#ifdef DEBUG_LOCKS
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Perl_warn(aTHX_ " %p waiting - owned by %p %s:%d\n",
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@@ -233,6 +268,10 @@ recursive_lock_acquire(pTHX_ recursive_lock_t *lock, const char *file, int line)
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#endif
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COND_WAIT(&lock->cond,&lock->mutex);
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}
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+ TRACE_LOCK(
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+ PerlIO_printf(Perl_debug_log, "shared lock got %p at %s:%d\n",
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+ lock, CopFILE(PL_curcop), CopLINE(PL_curcop))
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+ );
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lock->locks = 1;
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lock->owner = aTHX;
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#ifdef DEBUG_LOCKS
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--
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2.20.1
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@ -0,0 +1,57 @@
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From c48ee9c79eb7c4a36b7758fc4c3209ca0e5d759b Mon Sep 17 00:00:00 2001
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From: Jitka Plesnikova <jplesnik@redhat.com>
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Date: Tue, 21 Apr 2020 12:52:31 +0200
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Subject: [PATCH] Upgrade to 1.61
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---
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lib/threads/shared.pm | 4 ++--
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t/stress.t | 4 ++--
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2 files changed, 4 insertions(+), 4 deletions(-)
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diff --git a/lib/threads/shared.pm b/lib/threads/shared.pm
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index 45ad154..bd0e437 100644
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--- a/lib/threads/shared.pm
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+++ b/lib/threads/shared.pm
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@@ -8,7 +8,7 @@ use Config;
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use Scalar::Util qw(reftype refaddr blessed);
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-our $VERSION = '1.60'; # Please update the pod, too.
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+our $VERSION = '1.61'; # Please update the pod, too.
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my $XS_VERSION = $VERSION;
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$VERSION = eval $VERSION;
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@@ -196,7 +196,7 @@ threads::shared - Perl extension for sharing data structures between threads
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=head1 VERSION
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-This document describes threads::shared version 1.60
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+This document describes threads::shared version 1.61
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=head1 SYNOPSIS
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diff --git a/t/stress.t b/t/stress.t
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index 1dd95e3..ccdeb0e 100644
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--- a/t/stress.t
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+++ b/t/stress.t
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@@ -12,7 +12,7 @@ BEGIN {
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exit(0);
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}
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- # http://lists.alioth.debian.org/pipermail/perl-maintainers/2011-June/002285.html
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+ # https://lists.alioth.debian.org/pipermail/perl-maintainers/2011-June/002285.html
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# There _is_ TLS support on m68k, but this stress test is overwhelming
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# for the hardware
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if ($^O eq 'linux' && $Config{archname} =~ /^m68k/) {
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@@ -179,7 +179,7 @@ use threads::shared;
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} elsif ($timeouts) {
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# Frequently fails under MSWin32 due to deadlocking bug in Windows
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# hence test is TODO under MSWin32
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- # http://rt.perl.org/rt3/Public/Bug/Display.html?id=41574
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+ # https://rt.perl.org/rt3/Public/Bug/Display.html?id=41574
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# http://support.microsoft.com/kb/175332
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if ($^O eq 'MSWin32') {
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print("not ok 1 # TODO - not reliable under MSWin32\n")
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--
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2.21.1
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@ -0,0 +1,57 @@
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From b52cdd7a8525325deba04554d8a00a578c397d56 Mon Sep 17 00:00:00 2001
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From: David Mitchell <davem@iabyn.com>
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Date: Thu, 11 Jul 2019 15:17:48 +0100
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Subject: [PATCH] threads::shared: fix leak
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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When assigning a shared reference value to a variable containing a
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shared string, the PV buffer in the shared space was leaked. For
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example:
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my $s :shared = "foo";
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my $t :shared = shared_clone(\"bar");
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$s = $t; # "foo" in shared space leaked
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This was showing up as failed smokes under ASan.
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Petr Písař: Ported to 1.60 from perl commit
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59c73bd3d62c5096a6f9b2e3cbe05e1ab4c158cf.
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Signed-off-by: Petr Písař <ppisar@redhat.com>
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---
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shared.xs | 15 +++++++++++----
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1 file changed, 11 insertions(+), 4 deletions(-)
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diff --git a/shared.xs b/shared.xs
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index 6cdf094..858c6d6 100644
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--- a/shared.xs
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+++ b/shared.xs
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@@ -818,12 +818,19 @@ sharedsv_scalar_store(pTHX_ SV *sv, SV *ssv)
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SV *obj = SvRV(sv);
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SV *sobj = Perl_sharedsv_find(aTHX_ obj);
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if (sobj) {
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+ SV* tmpref;
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SHARED_CONTEXT;
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- (void)SvUPGRADE(ssv, SVt_RV);
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- sv_setsv_nomg(ssv, &PL_sv_undef);
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+ /* Creating a tmp ref to sobj then assigning it to ssv ensures
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+ * that any previous contents of ssv are correctly freed
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+ * by sv_setsv(). Not sure if there is a better, API-legal way
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+ * to achieve this */
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+ tmpref = newSV_type(SVt_RV);
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+ SvRV_set(tmpref, sobj);
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+ SvROK_on(tmpref);
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+ SvREFCNT_inc_simple_NN(sobj);
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+ sv_setsv_nomg(ssv, tmpref);
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+ SvREFCNT_dec_NN(tmpref);
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- SvRV_set(ssv, SvREFCNT_inc(sobj));
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- SvROK_on(ssv);
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if (SvOBJECT(sobj)) {
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/* Remove any old blessing */
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SvREFCNT_dec(SvSTASH(sobj));
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--
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2.20.1
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Reference in new issue