Re: Python (was Re: I did not inhale)

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Sujet : Re: Python (was Re: I did not inhale)
De : ldo (at) *nospam* nz.invalid (Lawrence D'Oliveiro)
Groupes : comp.unix.shell comp.unix.programmer comp.lang.misc
Date : 19. Aug 2024, 00:14:33
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <v9tv8o$2iahp$1@dont-email.me>
References : 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
User-Agent : Pan/0.159 (Vovchansk; )
On Sun, 18 Aug 2024 10:10:09 +0200, Dmitry A. Kazakov wrote:

On 2024-08-17 23:51, Lawrence D'Oliveiro wrote:
>
On Sat, 17 Aug 2024 12:58:31 +0200, Dmitry A. Kazakov wrote:
 
Windows inter-process API are far more advanced than what UNIX ever
had. It would be enough to mention famous file locks.
 
Except those file locks are more of a liability than an asset.
 
Like so many things in UNIX...

People voluntarily choose to use Unix-type OSes. There’s a reason why
Unix-type OSes are the official de-facto standard in the computing world,
not Windows.

They are what prevent you from continuing to use a Windows system while
it is being updated, for example.
 
Windows mutex gets collected when the last process using it dies. UNIX
file lock does not.

What happens to a file lock when there is no file for it to lock?

The reason why processes are not included is that they are used to
deal with some OS or design flaw that forces you to spawn some script
or application.
 
Or because the *nix tradition of being able to spawn a pipeline of
multiple processes, all cooperating to perform a common task, is
difficult and expensive, or even unreliable, under Windows.
 
It is as expensive under Windows as it is under UNIX.

No it isn’t. An example is Git, which initially was built around the fork-
multiple-processes model as with traditional *nix software, and ran fine
that way on Linux, but had to compromise on that idea a bit in order to
gain acceptance under Windows.

Remember, the current Windows (aka Windows NT) was masterminded by Dave
Cutler, who came from the nest of Unix-haters at DEC. He carried over many
of the characteristics of his last major brainchild there, VMS. One of
them is that creating multiple processes is expensive, so you try to avoid
it.

Windows has a pipe object named and anonymous. No problem.

One problem: you can’t use them with poll/select calls.

P.S. It is no wonder that Windows process API are far beyond UNIX.

Linux has clone(2). This can create regular POSIX-style processes, as well
as regular POSIX-style threads. And quite a few things in-between.

On the other hand, Windows NT was developed by people influenced with
the VMS design. VMS had a very elaborated process communication API.

And single drive letters?

They usually require processes be able to run on different nodes.

Massive parallelism is something else Linux does better than Windows.

Date Sujet#  Auteur
15 Aug 24 * Re: I did not inhale241Kalevi Kolttonen
16 Aug 24 `* Re: Python (was Re: I did not inhale)240Lawrence D'Oliveiro
16 Aug 24  +* Re: Python (was Re: I did not inhale)236Kaz Kylheku
16 Aug 24  i`* Re: Python (was Re: I did not inhale)235Kalevi Kolttonen
16 Aug 24  i +* Re: Python (was Re: I did not inhale)2John Ames
17 Aug 24  i i`- Re: Python (was Re: I did not inhale)1D
17 Aug 24  i +* Re: Python (was Re: I did not inhale)62Muttley
17 Aug 24  i i+* Re: Python (was Re: I did not inhale)59Dmitry A. Kazakov
17 Aug 24  i ii+* Re: Python (was Re: I did not inhale)57Lawrence D'Oliveiro
18 Aug 24  i iii`* Re: Python (was Re: I did not inhale)56Dmitry A. Kazakov
18 Aug 24  i iii +* Re: Python (was Re: I did not inhale)14Muttley
18 Aug 24  i iii i`* Re: Python (was Re: I did not inhale)13Dmitry A. Kazakov
18 Aug 24  i iii i `* Re: Python (was Re: I did not inhale)12Muttley
18 Aug 24  i iii i  +* Re: Python (was Re: I did not inhale)10Dmitry A. Kazakov
18 Aug 24  i iii i  i+* Re: Python (was Re: I did not inhale)2Kaz Kylheku
18 Aug 24  i iii i  ii`- Re: Python (was Re: I did not inhale)1Dmitry A. Kazakov
19 Aug 24  i iii i  i+- Re: Python (was Re: I did not inhale)1Lawrence D'Oliveiro
19 Aug 24  i iii i  i+- Re: Python (was Re: I did not inhale)1Muttley
25 Aug 24  i iii i  i`* Re: Python (was Re: I did not inhale)5Sebastian
25 Aug 24  i iii i  i `* Re: Python (was Re: I did not inhale)4Dmitry A. Kazakov
25 Aug 24  i iii i  i  +* Re: Python (was Re: I did not inhale)2vallor
25 Aug 24  i iii i  i  i`- Re: Python (was Re: I did not inhale)1Lawrence D'Oliveiro
25 Aug 24  i iii i  i  `- Re: Python (was Re: I did not inhale)1Lawrence D'Oliveiro
18 Aug 24  i iii i  `- Re: Python (was Re: I did not inhale)1Richard Kettlewell
18 Aug 24  i iii +* Re: Python (was Re: I did not inhale)2Kenny McCormack
18 Aug 24  i iii i`- Re: Python (was Re: I did not inhale)1Muttley
18 Aug 24  i iii +* Re: Python (was Re: I did not inhale)5Kaz Kylheku
18 Aug 24  i iii i`* Re: Python (was Re: I did not inhale)4Dmitry A. Kazakov
19 Aug 24  i iii i `* Re: Python (was Re: I did not inhale)3Kaz Kylheku
19 Aug 24  i iii i  `* Re: Python (was Re: I did not inhale)2Dmitry A. Kazakov
19 Aug 24  i iii i   `- Re: Python (was Re: I did not inhale)1Kaz Kylheku
19 Aug 24  i iii `* Re: Python (was Re: I did not inhale)34Lawrence D'Oliveiro
19 Aug 24  i iii  `* Re: Python (was Re: I did not inhale)33Dmitry A. Kazakov
19 Aug 24  i iii   +* Re: Python (was Re: I did not inhale)22David Brown
19 Aug 24  i iii   i`* Re: Python (was Re: I did not inhale)21Dmitry A. Kazakov
19 Aug 24  i iii   i +* Re: Python (was Re: I did not inhale)4Muttley
19 Aug 24  i iii   i i`* Re: Python (was Re: I did not inhale)3Dmitry A. Kazakov
19 Aug 24  i iii   i i +- Re: Python (was Re: I did not inhale)1Muttley
30 Sep 24  i iii   i i `- Re: Python (was Re: I did not inhale)1Bozo User
19 Aug 24  i iii   i +* Re: Python (was Re: I did not inhale)12David Brown
20 Aug 24  i iii   i i`* Re: Python (was Re: I did not inhale)11Dmitry A. Kazakov
20 Aug 24  i iii   i i +* Re: Python (was Re: I did not inhale)3Lawrence D'Oliveiro
20 Aug 24  i iii   i i i`* Re: Python (was Re: I did not inhale)2Dmitry A. Kazakov
21 Aug 24  i iii   i i i `- Re: Python (was Re: I did not inhale)1Lawrence D'Oliveiro
20 Aug 24  i iii   i i `* Re: Python (was Re: I did not inhale)7David Brown
20 Aug 24  i iii   i i  `* Re: Python (was Re: I did not inhale)6Dmitry A. Kazakov
20 Aug 24  i iii   i i   +* Re: Python (was Re: I did not inhale)2David Brown
20 Aug 24  i iii   i i   i`- Re: Python (was Re: I did not inhale)1Dmitry A. Kazakov
21 Aug 24  i iii   i i   `* Re: Python (was Re: I did not inhale)3Lawrence D'Oliveiro
21 Aug 24  i iii   i i    `* Re: Python (was Re: I did not inhale)2Dmitry A. Kazakov
22 Aug 24  i iii   i i     `- Re: Python (was Re: I did not inhale)1Lawrence D'Oliveiro
19 Aug 24  i iii   i `* Re: Python (was Re: I did not inhale)4Keith Thompson
19 Aug 24  i iii   i  `* Re: Python (was Re: I did not inhale)3John Ames
20 Aug 24  i iii   i   +- Re: Python (was Re: I did not inhale)1Muttley
20 Aug 24  i iii   i   `- Re: Python (was Re: I did not inhale)1Stefan Ram
19 Aug 24  i iii   +* Re: Python (was Re: I did not inhale)8Lawrence D'Oliveiro
19 Aug 24  i iii   i`* Re: Python (was Re: I did not inhale)7Dmitry A. Kazakov
19 Aug 24  i iii   i +* Re: Python (was Re: I did not inhale)2Keith Thompson
19 Aug 24  i iii   i i`- Re: Python (was Re: I did not inhale)1Dmitry A. Kazakov
20 Aug 24  i iii   i `* Re: Python (was Re: I did not inhale)4Lawrence D'Oliveiro
20 Aug 24  i iii   i  `* Re: Python (was Re: I did not inhale)3Dmitry A. Kazakov
20 Aug 24  i iii   i   +- Re: Python (was Re: I did not inhale)1Lawrence D'Oliveiro
20 Aug 24  i iii   i   `- Re: Python (was Re: I did not inhale)1D
21 Aug 24  i iii   `* Re: Python (was Re: I did not inhale)2vallor
21 Aug 24  i iii    `- Re: Python (was Re: I did not inhale)1Lawrence D'Oliveiro
18 Aug 24  i ii`- Re: Python (was Re: I did not inhale)1Muttley
18 Aug 24  i i`* Re: Python (was Re: I did not inhale)2David Brown
18 Aug 24  i i `- Re: Python (was Re: I did not inhale)1Muttley
18 Aug 24  i `* Re: Python (was Re: I did not inhale)170David Brown
18 Aug 24  i  +* Re: Python (was Re: I did not inhale)2Keith Thompson
19 Aug 24  i  i`- Re: Python (was Re: I did not inhale)1David Brown
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20 Aug 24  i   +* Re: Python (was Re: I did not inhale)3Muttley
20 Aug 24  i   i+- Re: Python (was Re: I did not inhale)1Lew Pitcher
20 Aug 24  i   i`- Re: Python (was Re: I did not inhale)1Kalevi Kolttonen
20 Aug 24  i   +* Re: Python (was Re: I did not inhale)160David Brown
20 Aug 24  i   i`* Re: Python (was Re: I did not inhale)159Kalevi Kolttonen
21 Aug 24  i   i +* Re: Python (was Re: I did not inhale)151David Brown
21 Aug 24  i   i i+* Re: Python (was Re: I did not inhale)132Muttley
21 Aug 24  i   i ii`* Re: Python (was Re: I did not inhale)131David Brown
21 Aug 24  i   i ii `* Re: Python (was Re: I did not inhale)130Muttley
21 Aug 24  i   i ii  `* Re: Python (was Re: I did not inhale)129David Brown
21 Aug 24  i   i ii   `* Re: Python (was Re: I did not inhale)128Muttley
21 Aug 24  i   i ii    `* Re: Python (was Re: I did not inhale)127David Brown
22 Aug 24  i   i ii     `* Re: Python (was Re: I did not inhale)126Muttley
22 Aug 24  i   i ii      +* Re: Python (was Re: I did not inhale)6D
22 Aug 24  i   i ii      i+* Re: Python (was Re: I did not inhale)4Muttley
22 Aug 24  i   i ii      ii`* Re: Python (was Re: I did not inhale)3D
22 Aug 24  i   i ii      ii `* Re: Python (was Re: I did not inhale)2Lew Pitcher
22 Aug 24  i   i ii      ii  `- Re: Python (was Re: I did not inhale)1Muttley
22 Aug 24  i   i ii      i`- Re: Python (was Re: I did not inhale)1David Brown
22 Aug 24  i   i ii      `* Re: Python (was Re: I did not inhale)119David Brown
22 Aug 24  i   i ii       +* Re: Python (was Re: I did not inhale)110Muttley
26 Aug 24  i   i ii       i`* Re: Python (was Re: I did not inhale)109John Ames
26 Aug 24  i   i ii       i +- Re: Python (was Re: I did not inhale)1Muttley
26 Aug 24  i   i ii       i `* Re: Python (was Re: I did not inhale)107Lawrence D'Oliveiro
26 Aug 24  i   i ii       i  +* Re: Python (was Re: I did not inhale)103John Ames
27 Aug 24  i   i ii       i  i+- Re: Python (was Re: I did not inhale)1Lawrence D'Oliveiro
27 Aug 24  i   i ii       i  i+- Re: Python (was Re: I did not inhale)1Sebastian
27 Aug 24  i   i ii       i  i`* Re: Python (was Re: I did not inhale)100Richard Kettlewell
27 Aug 24  i   i ii       i  i +* Re: Python (was Re: I did not inhale)94Bart
28 Aug 24  i   i ii       i  i `* Re: Python (was Re: I did not inhale)5Sebastian
26 Aug 24  i   i ii       i  +* Re: Python (was Re: I did not inhale)2Bart
27 Aug 24  i   i ii       i  `- Re: Python (was Re: I did not inhale)1Kaz Kylheku
22 Aug 24  i   i ii       `* Re: Python (was Re: I did not inhale)8Lawrence D'Oliveiro
21 Aug 24  i   i i`* Re: Python (was Re: I did not inhale)18Lawrence D'Oliveiro
21 Aug 24  i   i `* Re: Python (was Re: I did not inhale)7Muttley
21 Aug 24  i   `* Re: Python (was Re: I did not inhale)3Lawrence D'Oliveiro
16 Aug 24  `* Re: Python (was Re: I did not inhale)3Kalevi Kolttonen

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