From mint-bounce@lists.fishpool.fi  Tue Nov 30 11:53:18 2004
X-Original-To: fnaumann@mail.boerde.de
Delivered-To: fnaumann@mail.boerde.de
Message-ID: <41AC50E0.80809@gabo.pl>
Date: Tue, 30 Nov 2004 11:52:16 +0100
From: Adam Klobukowski <atari@gabo.pl>
User-Agent: Mozilla Thunderbird 0.9 (Windows/20041103)
X-Accept-Language: pl, en-us, en
MIME-Version: 1.0
To: mint@fishpool.com
Subject: Re: [MiNT] Ammount of file descriptors per process
References: <41AC2CD6.6030000@gabo.pl> <Pine.NEB.4.61.0411301025130.19150@wh58-508.st.uni-magdeburg.de>
In-Reply-To: <Pine.NEB.4.61.0411301025130.19150@wh58-508.st.uni-magdeburg.de>
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: quoted-printable
X-ecartis-version: Ecartis v1.0.0
Sender: mint-bounce@lists.fishpool.fi
Errors-To: mint-bounce@lists.fishpool.fi
X-original-sender: atari@gabo.pl
Precedence: bulk
List-help: <mailto:ecartis@lists.fishpool.fi?Subject=help>
List-unsubscribe: <mailto:mint-request@lists.fishpool.fi?Subject=unsubscribe>
List-Id: <mint.lists.fishpool.fi>
X-List-ID: <mint.lists.fishpool.fi>
X-Virus-Scanned: by amavisd-new at relay.boerde.de
X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on relay.boerde.de
X-Spam-Status: No, hits=-1.0 tagged_above=-50.5 required=3.8 tests=BAYES_00
X-Spam-Level: 

Frank Naumann napisa=C5=82(a):
> RLIMIT_NOFILE
>=20
>     This is a number one greater than the maximum value that the system
>     may assign to a newly-created descriptor. If this limit is exceeded=
,
>     functions that allocate new file descriptors may fail with errno se=
t
>     to [EMFILE]. This limit constrains the number of file descriptors
>     that a process may allocate.

Ok, it looks that KR "Ansi C" is not a reliable source when it comes to=20
std library.

>> 3. Opening (creating) files using system call Fcreate(), the maximum=20
>> ammount of files it tries to open is taken from Sysconf(SYS_MAXFILES)=20
>> system call.
>=20
>=20
>  * Sysconf(which): returns information about system configuration.
>  *       2      max. number of open files per process   {OPEN_MAX}
>=20
>> Ad 3. Sysconf(SYS_MAXFILES) returns 32. Test fails after opening 26=20
>> files.
>=20
>=20
> This is not the number of files you can open, this is the maximum numbe=
r=20
> of files a process can have open. Under Unix every process have at leas=
t=20
> 3 open file descriptors at start (stdin, stdout, stderr). Under FreeMiN=
T=20
> it's more due to TOS emulation.

My bad english, that was what I meant.

>> Or, if I'm wrong please correct me.
>=20
>=20
> Except the FOPEN_MAX constant I don't see any problem or violation of=20
> the standards.

Thanks.

Btw. How can i hesk how many fd a procces have already opened? /kern/*/fd=
?

--=20
Semper Fidelis

Adam Klobukowski
atari@gabo.pl