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From: eps@toaster.SFSU.EDU (Eric P. Scott)
Newsgroups: comp.sys.next
Subject: Re: Immediate write to disk
Message-ID: <1672@toaster.SFSU.EDU>
Date: 7 Jun 91 00:05:02 GMT
References: <35269@mimsy.umd.edu>
Reply-To: eps@cs.SFSU.EDU (Eric P. Scott)
Organization: San Francisco State University
Lines: 13

In article <35269@mimsy.umd.edu> helene@umiacs.umd.edu
	(Helene Young-Myers) writes:
>     In Mach, how do I force an immediate write to disk?  I am looking for
>the equivalent to the O_SYNC option in open() on Unix System V.  When this
>option is set, each write() will wait for both the file data and file
>status to be physically updated.

This isn't really a Mach question.  :-)

NeXT added O_SYNC with Software Release 2.0.
You might also look at the fsync(2) call.

					-=EPS=-