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5071-stdlib-Add-comment-about-why-unlink-at-sup...
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File 5071-stdlib-Add-comment-about-why-unlink-at-supervisor-sh.patch of Package erlang
From 7060581e7d0e87262670a9b8ceaa776f0aa9ac7b Mon Sep 17 00:00:00 2001 From: Lukas Larsson <lukas@erlang.org> Date: Mon, 18 Oct 2021 09:33:36 +0200 Subject: [PATCH 01/11] stdlib: Add comment about why unlink at supervisor shutdown --- lib/stdlib/src/supervisor.erl | 2 ++ 1 file changed, 2 insertions(+) diff --git a/lib/stdlib/src/supervisor.erl b/lib/stdlib/src/supervisor.erl index eea5b6a513..0d8b5a5ef4 100644 --- a/lib/stdlib/src/supervisor.erl +++ b/lib/stdlib/src/supervisor.erl @@ -967,6 +967,8 @@ shutdown(#child{pid=Pid, shutdown=Time} = Child) -> end. unlink_flush(Pid, DefaultReason) -> + %% We call unlink in order to guarantee that the 'EXIT' has arrived + %% from the dead process. See the unlink docs for details. unlink(Pid), receive {'EXIT', Pid, Reason} -> -- 2.31.1
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