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Date: Wed, 27 Aug 2014 14:43:33 +0400 (MSK)
From: Alexander Monakov <>
Subject: Re: sem_getvalue conformance considerations

Why wouldn't the following design work?

val[0] is sem value if >= 0, negated waiters count otherwise
val[1] is wakeup count, incremented before futex wake, tested and decremented
by waiters returning from futex wait


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