Re: select failed: Interrupted system call

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#3262

From: Rick Johns
Date: Thu, 24 Mar 1994 19:37

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|> Patrick Coghlan <coghlan@bcarh5f8.bnr.ca> wrote:
|> I have a 1-second interval timer running in my application and I catch
|> the SIGALRM signal for it.
|> 
|> The documentation for signal says that the process will resume
|> execution at the point where it was interrupted, although some
|> READ/WRITE etc. to SLOW devices (not files) will fail.
|> 
|> Well, I am using SELECT to suspend my application for 100 ms
|> while polling and I get "select failed: Interrupted system call"
|> messages every time the interval timer goes off (my application is
|> usually suspended).  I don't mind the select() failing, but I don't
|> want this silly message being displayed.

Try setting the sigcontext sc_syscall_action field to SIG_RESTART in 
the handler.  That allows the system call to restart, which should
avoid the problem.  I think this is an HP-specific thing, though.

-- 
Cheers,
 Rick Johns
 BNR
 rjohns@bnr.ca

Disclaimer: I said it, BNR didn't.

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References: <1994Mar24.142710.11199@bcarh54a.bnr.ca> <2msijo$602@news.iastate.edu>

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From: rjohns@brtph46.bnr.ca (Rick Johns)
Subject: Re: select failed: Interrupted system call
Message-ID: <1994Mar24.193759.27805@bmers95.bnr.ca>
Sender: usenet@bmers95.bnr.ca
Organization: Bell-Northern Research, Ottawa, Canada
References: <1994Mar24.142710.11199@bcarh54a.bnr.ca> <2msijo$602@news.iastate.edu>
Date: Thu, 24 Mar 1994 19:37:59 GMT
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