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From: | 048321887-0001 AT t-online DOT de (Udo Kuhnt) |
Newsgroups: | comp.os.msdos.djgpp |
Subject: | Re: Using DR-DOS fork in DJGPP |
Date: | 30 May 2004 13:12:55 -0700 |
Organization: | http://groups.google.com |
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NNTP-Posting-Date: | Sun, 30 May 2004 20:12:55 +0000 (UTC) |
To: | djgpp AT delorie DOT com |
DJ-Gateway: | from newsgroup comp.os.msdos.djgpp |
Reply-To: | djgpp AT delorie DOT com |
"Eli Zaretskii" <eliz AT gnu DOT org> wrote in message news:<9451-Thu27May2004145923+0300-eliz AT gnu DOT org>... > > From: 048321887-0001 AT t-online DOT de (Udo Kuhnt) > > Newsgroups: comp.os.msdos.djgpp > > Date: 27 May 2004 01:04:46 -0700 > > > > I do not think that in Unix, file position is shared between processes. > > They do, for inherited file handles. An inherited handle doesn't have > its own entry in the system file tables, it just points to the same > entry as the original handle in the parent. So, for such handles, > moving the file position in one process necessarily moves it in the > other, as they share the same file position. > > If you think otherwise, please try a simple test program and see for > yourself. Sorry, I did not know this. Now I understand why you said that file handles could not be inherited between VMs. So X_PCreate is perhaps really better suited for this task than Z_Dom_Fork - that is, if it is at all possible to use one of these functions to emulate a POSIX fork. :-/
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