Path: utzoo!utgpu!water!watmath!clyde!bellcore!faline!thumper!ulysses!andante!mit-eddie!bu-cs!purdue!i.cc.purdue.edu!j.cc.purdue.edu!pur-ee!uiucdcs!uxc.cso.uiuc.edu!urbsdc!aglew
From: aglew@urbsdc.UUCP
Newsgroups: comp.unix.aux
Subject: Re: number of simultaneously open (buff
Message-ID: <45600001@urbsdc>
Date: 18 May 88 22:23:00 GMT
References: <5828@uwmcsd1.UUCP>
Lines: 14
Nf-ID: #R:uwmcsd1.UUCP:5828:urbsdc:45600001:000:653
Nf-From: urbsdc.Urbana.Gould.COM!aglew    May 18 17:23:00 1988
Posted: Wed May 18 18:23:00 1988


>>I am just curious:
>>What is the maximum number of simultaneously open buffered files
>>under aux? Can it be changed?
>
>Well, in A/UX we chose to have as many open file descriptors (and hence
>open buffered files) as possible. The select system call, in a way,
>set a "reasoable" limit of 32 files. Thus, you can have up to 32
>file descriptors (and 32 buffered files) open. Actually 29 when you
>remember that stdin, stdout, and stderr are already open. Yes, it can be
>changed - increasing it will make it hard for select to work :-).

BSD 4.3 select uses an array, so that the size of an int is
not a limit on the number of open file descriptors.