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From: Alexander Monakov <amonakov@ispras.ru>
To: musl@lists.openwall.com
Subject: Re: Resuming work on new semaphore
Date: Sun, 5 Apr 2015 17:17:35 +0300 (MSK)	[thread overview]
Message-ID: <alpine.LNX.2.11.1504051712170.8195@monopod.intra.ispras.ru> (raw)
In-Reply-To: <alpine.LNX.2.11.1504051613090.8195@monopod.intra.ispras.ru>

In a similar vein, if the caller explicitely kills other waiters before
invoking sem_post and sem_getvalue, it will also reveal an inconsistency with
the new implementation: returned value of 0 will look as if sem_post has woken
some waiters, even though the caller could know for certain that no tasks were
waiting on the semaphore.

Well we can make sem_getvalue return val[0]+val[1] instead... ;)

Alexander



  reply	other threads:[~2015-04-05 14:17 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-04-02  1:30 Rich Felker
2015-04-02  7:42 ` Alexander Monakov
2015-04-02 15:26   ` Rich Felker
2015-04-02 21:39     ` Alexander Monakov
2015-04-02 23:14       ` Rich Felker
2015-04-05 14:07         ` Alexander Monakov
2015-04-05 14:17           ` Alexander Monakov [this message]
2015-04-05 19:02             ` Rich Felker
2015-04-05 20:03               ` Alexander Monakov
2015-04-05 20:23                 ` Rich Felker
2015-04-05 21:07                   ` Alexander Monakov
2015-04-11 22:22                     ` Alexander Monakov
2015-04-23 16:06                       ` Rich Felker
2015-04-23 18:24                         ` Alexander Monakov
2015-04-23 20:01                           ` Alexander Monakov
2015-04-24  2:46                             ` Rich Felker
2015-04-24 10:23                               ` Alexander Monakov
2015-04-24 15:03                                 ` Rich Felker
2015-04-24 15:47                                 ` Alexander Monakov
2015-04-24 15:59                                   ` Rich Felker

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