44 lines
1.1 KiB
Diff
44 lines
1.1 KiB
Diff
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From 38d7c791f597c3d567a70466dc2e48b73ec318bf Mon Sep 17 00:00:00 2001
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From: Leon Timmermans <fawaka@gmail.com>
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Date: Mon, 26 Dec 2011 19:06:54 +0200
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Subject: [PATCH] Signal handlers must run before sigsuspend returns
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The whole point of sigsuspend and pause is to wait until a signal has
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arrived, and then return *after* it has been triggered. Currently
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delayed/"safe" signals prevent that from happening, which might cause
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race conditions.
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This patch prevents that (as far as possible) by running the signal
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handlers ASAP.
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Petr Pisar: Back-ported to 5.14.2.
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---
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ext/POSIX/POSIX.xs | 4 ++++
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1 files changed, 4 insertions(+), 0 deletions(-)
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diff --git a/ext/POSIX/POSIX.xs b/ext/POSIX/POSIX.xs
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index 8dc1f5a..4b9779b 100644
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--- a/ext/POSIX/POSIX.xs
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+++ b/ext/POSIX/POSIX.xs
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@@ -1550,6 +1550,8 @@ sigaction(sig, optaction, oldaction = 0)
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SysRet
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sigpending(sigset)
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POSIX::SigSet sigset
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+ CLEANUP:
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+ PERL_ASYNC_CHECK();
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SysRet
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sigprocmask(how, sigset, oldsigset = 0)
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@@ -2019,6 +2021,8 @@ pathconf(filename, name)
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SysRet
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pause()
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+ CLEANUP:
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+ PERL_ASYNC_CHECK();
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SysRet
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setgid(gid)
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--
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1.7.7.6
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