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From: Konstantin Osipov <kostja.osipov@gmail.com>
To: Leonid Vasiliev <lvasiliev@tarantool.org>
Cc: tarantool-patches@dev.tarantool.org
Subject: Re: [Tarantool-patches] [PATCH] Add a cancellation guard to cpipe flush callback
Date: Tue, 3 Dec 2019 21:02:57 +0300	[thread overview]
Message-ID: <20191203180257.GA4364@atlas> (raw)
In-Reply-To: <73ebdf94c8f03fca216de9141c6541870b1ed938.1575390549.git.lvasiliev@tarantool.org>

* Leonid Vasiliev <lvasiliev@tarantool.org> [19/12/03 19:36]:
> https://github.com/tarantool/tarantool/issues/4127
> https://github.com/tarantool/tarantool/tree/lvasiliev/gh-4127-WAL-thread-stucks

Looks like a great catch.

> We need to set a thread cancellation guard, because
> another thread may cancel the current thread
> (write() is a cancellation point in ev_async_send)
> and the activation of the ev_async watcher
> through ev_async_send will fail.

I still don't get from the explanation why it is relevant that
ev_async_send mustn't fail?


-- 
Konstantin Osipov, Moscow, Russia

  reply	other threads:[~2019-12-03 18:02 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-03 16:33 Leonid Vasiliev
2019-12-03 18:02 ` Konstantin Osipov [this message]
2019-12-05  7:22   ` Leonid Vasiliev
2019-12-05  7:27     ` Konstantin Osipov
2019-12-23 12:44       ` Leonid Vasiliev
2019-12-23 12:55         ` Konstantin Osipov
2019-12-24 15:27           ` Leonid Vasiliev
2019-12-24 15:33             ` Konstantin Osipov

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