Date: Thu, 6 Nov 2008 17:50:06 +0200 From: "Ivo Vachkov" <ivo.vachkov@gmail.com> To: "FreeBSD Net" <freebsd-net@freebsd.org> Subject: BPF question Message-ID: <f85d6aa70811060750x7809288dvdb0cf683a50dcfd2@mail.gmail.com>
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Hello all, I am using simple write() calls to send packets over BPF file descriptor. The BPF file descriptor is in buffered read mode (I assume this is the default and I do not set it explicitly). From what I see my write() calls are somewhat buffered. Since timing is relatively important for my project I'd like to ask if there is a way "flush" the write buffer. Setting O_DIRECT flag on the file descriptor doesn't seem to have any effect. /ipv -- "UNIX is basically a simple operating system, but you have to be a genius to understand the simplicity." Dennis Ritchie
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