Date: Mon, 8 Jul 1996 09:10:53 -0400 (EDT) From: "Ron G. Minnich" <rminnich@Sarnoff.COM> To: hackers@freebsd.org Subject: Re: filemalloc etc. for shared memory between processes Message-ID: <Pine.SUN.3.91.960708091005.18917F-100000@terra> In-Reply-To: <199607080957.MAA19692@office.elvisti.kiev.ua>
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> I wonder how one should properly implement locking of memory > regions in this case. Will appropriate fcntl(2) be > enough? no, you use the fastlock() i posted earlier. fcntl is probably the worst way there is to lock shared regions. You want memory-value-based locking so you can use compare-and-swap (or equivalent). ron
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