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From: rgenter@LABS-B.BBN.COM (Rick Genter)
Newsgroups: net.unix-wizards
Subject: readv(), writev()
Message-ID: <4240@brl-smoke.ARPA>
Date: Mon, 29-Sep-86 13:04:28 EDT
Article-I.D.: brl-smok.4240
Posted: Mon Sep 29 13:04:28 1986
Date-Received: Sat, 4-Oct-86 10:31:58 EDT
Sender: news@brl-smoke.ARPA
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     Can someone explain why readv()/writev() are system calls?  As far as I
can tell the only advantage to having them be syscalls is to prevent the user
from having to either a) issue multiple read() calls or b) allocate twice as
much buffer space and use bcopy().  Is there another reason?
--------
Rick Genter 				BBN Laboratories Inc.
(617) 497-3848				10 Moulton St.  6/512
rgenter@labs-b.bbn.COM  (Internet new)	Cambridge, MA   02238
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