Date: Tue, 20 Apr 1999 11:21:21 +0200 (SAST) From: Graham Wheeler <gram@cdsec.com> To: hackers@freebsd.org Subject: Using select() to implement a delay Message-ID: <199904200921.LAA09941@cdsec.com>
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Hi all I have an interesting problem. I have a routine to implement delays: void Sleep(int secs, int usecs = 0) { struct timeval tv; tv.tv_sec = secs; tv.tv_usec = usecs; (void)select(0, 0, 0, 0, &tv); } I am using this both because it gives better resolution than sleep(), and also because it doesn't require the use of SIGALRM, which I am using elsewhere. On my development machine, Sleep(60) does exactly what is expected. On my clients machine, Sleep(60) returns immediately. Both are running FreeBSD 2.2.7. I don't have access to the clients machine, which is in another city, and has no development environment, so I can't run gdb, although it may not give away anything in any case. Does anyone have any ideas why the one works and the other doesn't? TIA gram -- Dr Graham Wheeler E-mail: gram@cdsec.com Citadel Data Security Phone: +27(21)423-6065/6/7 Firewalls/Virtual Private Networks Fax: +27(21)24-3656 Internet/Intranet Network Specialists Data Security Products WWW: http://www.cdsec.com/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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