Date: Tue, 19 Dec 2000 09:45:05 -0800 From: Alfred Perlstein <bright@wintelcom.net> To: Dmitry Dicky <diwil@dataart.com> Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: recvfrom() and signals Message-ID: <20001219094505.P19572@fw.wintelcom.net> In-Reply-To: <XFMail.001219200110.diwil@dataart.com>; from diwil@dataart.com on Tue, Dec 19, 2000 at 08:01:10PM %2B0300 References: <XFMail.001219200110.diwil@dataart.com>
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* Dmitry Dicky <diwil@dataart.com> [001219 09:01] wrote: > > I use non blocking socket and it receives data with no problems. > When alarm occures, the signal delivered to the process and alarm handler > prints a signal number. As I understand after this recvfrom should > return -1 and errno should be set to EINTR. > > BUt, upon signal delivery (actually any signal, CHLD for example) > recvfrom() still hangs the program execution and awaits data. > > However, man pages say that recvfrom() will return -1 if the call has been > interrupted. > > Is this a system bug or just my misunderstanding? See the sigaction manpage and how one enable/disables system call restarts. -- -Alfred Perlstein - [bright@wintelcom.net|alfred@freebsd.org] "I have the heart of a child; I keep it in a jar on my desk." To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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