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From: tanner@ki4pv.UUCP (Tanner Andrews)
Newsgroups: net.unix
Subject: Re: file system query
Message-ID: <220@ki4pv.UUCP>
Date: Fri, 3-May-85 11:30:39 EDT
Article-I.D.: ki4pv.220
Posted: Fri May  3 11:30:39 1985
Date-Received: Sun, 5-May-85 02:01:46 EDT
References: <10195@brl-tgr.ARPA>
Organization: CompuData South, DeLand
Lines: 18

Opening for append using [see] fopen(3) does not cause anything
of great magic to happen to the op system.  The basic procedure
involved is:
	(1) open file
	(2) seek to end
	(3) fill buffer and write to file in current position

Consider the case for more than one process happening at once:
Of course, if you have two people that open the file and seek to
the end, both will seek to the SAME end.  Then, when they start
their output, the output will go to the same place.  The guy that
gets there LAST wins, of course.

Of course you may get the same effect by using [see] open(2) and
[see] lseek(2) to the end of the file, then writing.  The result
still probably isn't what you had in mind.
-- 
<standard disclaimers apply, copies upon request>	Tanner Andrews, KI4PV