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Date:      Tue, 24 Sep 2002 09:58:05 -0700
From:      Terry Lambert <tlambert2@mindspring.com>
To:        Andriy Gapon <avg@icyb.net.ua>
Cc:        eischen@pcnet1.pcnet.com, julian@elischer.org, hackers@FreeBSD.org
Subject:   Re: libc_r in stable
Message-ID:  <3D90999D.14E02BF0@mindspring.com>
References:  <20020924105755.Y81038-100000@edge.foundation.invalid>

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Andriy Gapon wrote:
> I have noticed that it is not uncommon for a multithreaded program that
> invokes a lot of system calls to get EINTR from a syscall even if no
> non-default signal handling is installed and no 'real' signals are
> received. Looks like some syscalls get interrupted by the scheduling
> signal. In my understanding, this should be something hidden from a user.
> Is there any way to restart syscalls interrupted by the scheduling signal
> without returning a libc_r call ?

Set SA_RESTART in the sa_flags of the sigaction for the scheduling
signal.  Use "man sigaction" for details.

-- Terry

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