Date: Tue, 17 Oct 1995 07:55:33 +0200 From: Mark Murray <mark@grondar.za> To: Bruce Evans <bde@zeta.org.au> Cc: hackers@FreeBSD.org Subject: Re: Creating a /dev/random Message-ID: <199510170555.HAA29644@grumble.grondar.za>
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> >> To avoid this, use the existing buffer `zbuf', which is freed correctly. > >> There is no need for another variable - local variables are per process. > ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ > >> Perhaps `zbuf' should be renamed `buf'. > > >I don't understand something here - what happens if the one process is > >reading both /dev/zero and /dev/random? will the two not then try to > >share buf/zbuf and screw up? > > See above Either you are missing something here or I am :-) If ONE process is reading BOTH /dev/random and /dev/zero (making buf common?) is there a problem? > >> is inelegant anyway. Perhaps there should be a zeroout() function to > >> optimize this important (;-) device. > > >...or only c bytes should be zero'ed out? > > Good idea. Will do! -- Mark Murray 46 Harvey Rd, Claremont, Cape Town 7700, South Africa +27 21 61-3768 GMT+0200 Finger mark@grumble.grondar.za for PGP key
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