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Path: euryale.cc.adfa.oz.au!newshost.anu.edu.au!harbinger.cc.monash.edu.au!simtel!news.kei.com!news.mathworks.com!newsfeed.internetmci.com!chi-news.cic.net!uwm.edu!msunews!netnews.upenn.edu!gradient.cis.upenn.edu!dherbst From: dherbst@gradient.cis.upenn.edu (Darrel Herbst) Newsgroups: comp.unix.bsd.freebsd.misc Subject: test&set? Semaphores? Date: 17 Oct 1995 15:43:46 GMT Organization: University of Pennsylvania Lines: 11 Message-ID: <460ivi$3j9@netnews.upenn.edu> NNTP-Posting-Host: gradient.cis.upenn.edu X-Newsreader: TIN [version 1.2 PL2-upenn1.3] I'm doing a project that requires a test&set atomic function, but I can't seem to find one similar to the cs system call in AIX. Doing a man -k with semaphore points me to the System V IPC -- but ipcs tells me that SysV IPC is not enabled on my machine -- is it a separate package, and is that what I should be looking for? What implementations are most commonly used for test&set on FreeBSD? thanks in advance