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[Fwd: [issue6397] Implementing Solaris "poll" in the "select" module]

Jesus Cea

1 Jul 2009 1 Jul '09

10:26 a.m.

-- Jesus Cea Avion _/_/ _/_/_/ _/_/_/ jcea@jcea.es - http://www.jcea.es/ _/_/ _/_/ _/_/ _/_/ _/_/ jabber / xmpp:jcea@jabber.org _/_/ _/_/ _/_/_/_/_/ . _/_/ _/_/ _/_/ _/_/ _/_/ "Things are not so easy" _/_/ _/_/ _/_/ _/_/ _/_/ _/_/ "My name is Dump, Core Dump" _/_/_/ _/_/_/ _/_/ _/_/ "El amor es poner tu felicidad en la felicidad de otro" - Leibniz

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issue6397ImplementingSolarispollintheselectmodule.eml (message/rfc822 — 4 bytes)

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Guido van Rossum

1 Jul 1 Jul

7:05 p.m.

New subject: [Fwd: [issue6397] Implementing Solaris "poll" in the "select" module]

The select module already supports the poll() system call. Or is there a special variant that only Solaris has? 2009/7/1 Jesus Cea :

...

-- Jesus Cea Avion _/_/ _/_/_/ _/_/_/ jcea@jcea.es - http://www.jcea.es/ _/_/ _/_/ _/_/ _/_/ _/_/ jabber / xmpp:jcea@jabber.org _/_/ _/_/ _/_/_/_/_/ . _/_/ _/_/ _/_/ _/_/ _/_/ "Things are not so easy" _/_/ _/_/ _/_/ _/_/ _/_/ _/_/ "My name is Dump, Core Dump" _/_/_/ _/_/_/ _/_/ _/_/ "El amor es poner tu felicidad en la felicidad de otro" - Leibniz

---------- Forwarded message ---------- From: "Jesús Cea Avión" To: jcea@jcea.es Date: Wed, 01 Jul 2009 16:49:15 +0000 Subject: [issue6397] Implementing Solaris "poll" in the "select" module

New submission from Jesús Cea Avión :

In Python 2.6 we added support for Linux "epoll" and *BSD "kqueue" in the select module. I think we should add support for Solaris "poll" interface too.

What do you think?.

I volunteer to do the work, if you agree this is a feature we want to have. I think so.

---------- assignee: jcea components: Library (Lib) messages: 89989 nosy: jcea severity: normal stage: needs patch status: open title: Implementing Solaris "poll" in the "select" module type: feature request versions: Python 2.7, Python 3.2

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Alexandre Vassalotti

7:55 p.m.

New subject: [Fwd: [issue6397] Implementing Solaris "poll" in the "select" module]

On Wed, Jul 1, 2009 at 10:05 PM, Guido van Rossum wrote:

...

The select module already supports the poll() system call. Or is there a special variant that only Solaris has?

I think Jesus refers to /dev/poll—i.e., the interface for edge-triggered polling on Solaris. This is the Solaris equivalent of FreeBSD's kqueue and Linux's epoll. -- Alexandre

Jesus Cea

2 Jul 2 Jul

2:52 a.m.

New subject: [Fwd: [issue6397] Implementing Solaris "poll" in the "select" module]

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Alexandre Vassalotti wrote:

...

On Wed, Jul 1, 2009 at 10:05 PM, Guido van Rossum wrote:

...
The select module already supports the poll() system call. Or is there a special variant that only Solaris has?

I think Jesus refers to /dev/poll—i.e., the interface for edge-triggered polling on Solaris. This is the Solaris equivalent of FreeBSD's kqueue and Linux's epoll.

Yes. In python 2.6, Linux and *BSD benefice of access to high performing "poll"-like interfaces, non portable. Solaris has "/dev/poll" too, so we can provide another non-portable interface :). In fact I think it could be interesting to investigate the direct use of "/dev/poll" in Solaris under "select.poll" implementation, if available, in a transparent way. With this could be possible to improve efficiency without adding another non-portable interface. But before investigating options, I want to know if there is interest on it. I think so, because Solaris/OpenSolaris is an important platform, I will take care of the code, and we already have non-portable interfaces: "select.epoll" for Linux and "select.kqueue" for *BSD. - -- Jesus Cea Avion _/_/ _/_/_/ _/_/_/ jcea@jcea.es - http://www.jcea.es/ _/_/ _/_/ _/_/ _/_/ _/_/ jabber / xmpp:jcea@jabber.org _/_/ _/_/ _/_/_/_/_/ . _/_/ _/_/ _/_/ _/_/ _/_/ "Things are not so easy" _/_/ _/_/ _/_/ _/_/ _/_/ _/_/ "My name is Dump, Core Dump" _/_/_/ _/_/_/ _/_/ _/_/ "El amor es poner tu felicidad en la felicidad de otro" - Leibniz -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.8 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iQCVAwUBSkyDXZlgi5GaxT1NAQJSawP/SUf2AVfzYbqv8F3zZjNBspFu5c3bYVEK 6A2YSW0WIrNiQtcI9Ka99dCCzHI6cwohlDhxQddJEG4w30hewsFBFJqftSpPLhkv ToSUNDYe37QmRgVrcns//repWoaMwsrt8MMQU6MLb9pyaoT4Pffe1vcbqg+/XgUN EJENI7BjSOw= =BTMr -----END PGP SIGNATURE-----

Gregory P. Smith

3:41 p.m.

New subject: [Fwd: [issue6397] Implementing Solaris "poll" in the "select" module]

On Thu, Jul 2, 2009 at 2:52 AM, Jesus Cea wrote:

...

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1

Alexandre Vassalotti wrote:

...
On Wed, Jul 1, 2009 at 10:05 PM, Guido van Rossum wrote:

...
The select module already supports the poll() system call. Or is there a special variant that only Solaris has?

I think Jesus refers to /dev/poll—i.e., the interface for edge-triggered polling on Solaris. This is the Solaris equivalent of FreeBSD's kqueue and Linux's epoll.

Yes. In python 2.6, Linux and *BSD benefice of access to high performing "poll"-like interfaces, non portable. Solaris has "/dev/poll" too, so we can provide another non-portable interface :). In fact I think it could be interesting to investigate the direct use of "/dev/poll" in Solaris under "select.poll" implementation, if available, in a transparent way. With this could be possible to improve efficiency without adding another non-portable interface.

But before investigating options, I want to know if there is interest on it. I think so, because Solaris/OpenSolaris is an important platform, I will take care of the code, and we already have non-portable interfaces: "select.epoll" for Linux and "select.kqueue" for *BSD.

+1 I'm sure *Solaris users would appreciate this. Go for it.

...

- -- Jesus Cea Avion _/_/ _/_/_/ _/_/_/ jcea@jcea.es - http://www.jcea.es/ _/_/ _/_/ _/_/ _/_/ _/_/ jabber / xmpp:jcea@jabber.org _/_/ _/_/ _/_/_/_/_/ . _/_/ _/_/ _/_/ _/_/ _/_/ "Things are not so easy" _/_/ _/_/ _/_/ _/_/ _/_/ _/_/ "My name is Dump, Core Dump" _/_/_/ _/_/_/ _/_/ _/_/ "El amor es poner tu felicidad en la felicidad de otro" - Leibniz -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.8 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

iQCVAwUBSkyDXZlgi5GaxT1NAQJSawP/SUf2AVfzYbqv8F3zZjNBspFu5c3bYVEK 6A2YSW0WIrNiQtcI9Ka99dCCzHI6cwohlDhxQddJEG4w30hewsFBFJqftSpPLhkv ToSUNDYe37QmRgVrcns//repWoaMwsrt8MMQU6MLb9pyaoT4Pffe1vcbqg+/XgUN EJENI7BjSOw= =BTMr -----END PGP SIGNATURE----- _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/greg%40krypto.org

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Alexandre Vassalotti
Gregory P. Smith
Guido van Rossum
Jesus Cea

[Fwd: [issue6397] Implementing Solaris "poll" in the "select" module]

Jesus Cea

Guido van Rossum

Alexandre Vassalotti

Jesus Cea

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