Review of SRFI 170 through 3.2 I/O
hga@xxxxxx
(22 Apr 2020 17:13 UTC)
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Re: Review of SRFI 170 through 3.2 I/O
John Cowan
(22 Apr 2020 20:42 UTC)
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Re: Review of SRFI 170 through 3.2 I/O
Lassi Kortela
(22 Apr 2020 20:53 UTC)
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Re: Review of SRFI 170 through 3.2 I/O
John Cowan
(22 Apr 2020 21:29 UTC)
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Re: Review of SRFI 170 through 3.2 I/O
hga@xxxxxx
(22 Apr 2020 23:58 UTC)
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Re: Review of SRFI 170 through 3.2 I/O
Lassi Kortela
(22 Apr 2020 21:36 UTC)
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Re: Review of SRFI 170 through 3.2 I/O
Lassi Kortela
(22 Apr 2020 21:43 UTC)
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Re: Review of SRFI 170 through 3.2 I/O
John Cowan
(23 Apr 2020 03:38 UTC)
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Re: Review of SRFI 170 through 3.2 I/O
Lassi Kortela
(23 Apr 2020 07:02 UTC)
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Re: Review of SRFI 170 through 3.2 I/O
Lassi Kortela
(23 Apr 2020 07:05 UTC)
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Re: Review of SRFI 170 through 3.2 I/O
Göran Weinholt
(23 Apr 2020 10:54 UTC)
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Re: Review of SRFI 170 through 3.2 I/O
Marc Feeley
(23 Apr 2020 11:09 UTC)
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Per-thread umask
Lassi Kortela
(23 Apr 2020 11:30 UTC)
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Re: Per-thread umask
Marc Feeley
(23 Apr 2020 11:44 UTC)
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Re: Per-thread umask
Lassi Kortela
(23 Apr 2020 11:47 UTC)
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Re: Per-thread umask
Marc Feeley
(23 Apr 2020 11:59 UTC)
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Re: Per-thread umask
John Cowan
(23 Apr 2020 15:03 UTC)
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Re: Per-thread umask
Marc Feeley
(23 Apr 2020 15:20 UTC)
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Re: Per-thread umask
Lassi Kortela
(23 Apr 2020 16:02 UTC)
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Re: Per-thread umask
John Cowan
(23 Apr 2020 16:03 UTC)
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Re: Review of SRFI 170 through 3.2 I/O
Lassi Kortela
(23 Apr 2020 11:14 UTC)
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current directory and openat() et al
Lassi Kortela
(23 Apr 2020 11:27 UTC)
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Re: current directory and openat() et al
Marc Feeley
(23 Apr 2020 13:56 UTC)
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Re: Review of SRFI 170 through 3.2 I/O
Marc Feeley
(23 Apr 2020 11:33 UTC)
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Normalizing the current directory
Lassi Kortela
(23 Apr 2020 11:39 UTC)
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Re: Normalizing the current directory
Marc Feeley
(23 Apr 2020 11:55 UTC)
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Re: Normalizing the current directory
Lassi Kortela
(23 Apr 2020 12:10 UTC)
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Using paths that are searchable but not completely readable
hga@xxxxxx
(23 Apr 2020 12:30 UTC)
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Per-thread working directory and umask proposal
John Cowan
(23 Apr 2020 14:13 UTC)
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Re: Per-thread working directory and umask proposal
Marc Feeley
(23 Apr 2020 14:16 UTC)
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Re: Per-thread working directory and umask proposal
John Cowan
(23 Apr 2020 16:07 UTC)
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Re: Per-thread working directory and umask proposal
Marc Nieper-Wißkirchen
(23 Apr 2020 16:14 UTC)
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Re: Per-thread working directory and umask proposal
Marc Feeley
(23 Apr 2020 16:25 UTC)
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Re: Per-thread working directory and umask proposal
Marc Nieper-Wißkirchen
(23 Apr 2020 17:26 UTC)
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Re: Per-thread working directory and umask proposal
Marc Feeley
(23 Apr 2020 17:55 UTC)
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Re: Per-thread working directory and umask proposal
Marc Nieper-Wißkirchen
(23 Apr 2020 18:55 UTC)
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Re: Per-thread working directory and umask proposal
John Cowan
(23 Apr 2020 20:12 UTC)
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Re: Per-thread working directory and umask proposal
Shiro Kawai
(23 Apr 2020 22:17 UTC)
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Re: Per-thread working directory and umask proposal
Lassi Kortela
(24 Apr 2020 08:43 UTC)
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Re: Per-thread working directory and umask proposal
Shiro Kawai
(24 Apr 2020 11:27 UTC)
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Re: Per-thread working directory and umask proposal
Lassi Kortela
(24 Apr 2020 11:37 UTC)
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Re: Per-thread working directory and umask proposal
Shiro Kawai
(24 Apr 2020 12:22 UTC)
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Re: Per-thread working directory and umask proposal
John Cowan
(23 Apr 2020 18:38 UTC)
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Re: Review of SRFI 170 through 3.2 I/O
Sebastien Marie
(23 Apr 2020 13:32 UTC)
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Definition of working directory
Lassi Kortela
(23 Apr 2020 13:51 UTC)
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Re: Definition of working directory
Marc Feeley
(23 Apr 2020 14:07 UTC)
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Re: Definition of working directory
Sebastien Marie
(23 Apr 2020 15:31 UTC)
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Re: Review of SRFI 170 through 3.2 I/O
Marc Nieper-Wißkirchen
(23 Apr 2020 15:24 UTC)
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Separate high-level and low-level APIs
Lassi Kortela
(23 Apr 2020 15:38 UTC)
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Re: Separate high-level and low-level APIs
Marc Nieper-Wißkirchen
(23 Apr 2020 15:44 UTC)
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Re: Separate high-level and low-level APIs
Lassi Kortela
(23 Apr 2020 15:48 UTC)
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Re: Separate high-level and low-level APIs
hga@xxxxxx
(23 Apr 2020 16:19 UTC)
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Re: Separate high-level and low-level APIs
Lassi Kortela
(23 Apr 2020 16:42 UTC)
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Re: Review of SRFI 170 through 3.2 I/O
hga@xxxxxx
(23 Apr 2020 15:41 UTC)
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Re: Per-thread working directory and umask proposal Marc Feeley (24 Apr 2020 12:28 UTC)
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Re: Per-thread working directory and umask proposal
Marc Nieper-Wißkirchen
(26 Apr 2020 09:19 UTC)
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Re: Per-thread working directory and umask proposal
John Cowan
(27 Apr 2020 22:46 UTC)
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Re: Per-thread working directory and umask proposal
Shiro Kawai
(27 Apr 2020 23:42 UTC)
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Re: Per-thread working directory and umask proposal
John Cowan
(28 Apr 2020 00:42 UTC)
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Re: Per-thread working directory and umask proposal
Shiro Kawai
(28 Apr 2020 00:56 UTC)
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os-working-directory
Lassi Kortela
(29 Apr 2020 09:23 UTC)
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Re: os-working-directory
Duy Nguyen
(29 Apr 2020 09:28 UTC)
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current-umask
Lassi Kortela
(29 Apr 2020 09:43 UTC)
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Windows
Lassi Kortela
(29 Apr 2020 09:47 UTC)
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Re: Windows
Lassi Kortela
(29 Apr 2020 09:49 UTC)
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Re: Windows
John Cowan
(29 Apr 2020 14:53 UTC)
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Re: current-umask
hga@xxxxxx
(29 Apr 2020 13:14 UTC)
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Re: current-umask
Lassi Kortela
(29 Apr 2020 13:25 UTC)
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Re: current-umask
Marc Feeley
(29 Apr 2020 13:31 UTC)
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Re: current-umask
Marc Feeley
(29 Apr 2020 13:45 UTC)
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Re: current-umask
Lassi Kortela
(29 Apr 2020 14:12 UTC)
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Re: current-umask
hga@xxxxxx
(29 Apr 2020 16:21 UTC)
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Re: current-umask
Lassi Kortela
(29 Apr 2020 16:44 UTC)
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Re: current-umask
John Cowan
(30 Apr 2020 04:02 UTC)
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Re: os-working-directory
John Cowan
(30 Apr 2020 02:49 UTC)
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Re: os-working-directory
Lassi Kortela
(30 Apr 2020 06:12 UTC)
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Re: os-working-directory
Sebastien Marie
(30 Apr 2020 07:19 UTC)
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Re: os-working-directory
Sebastien Marie
(30 Apr 2020 07:53 UTC)
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Should the SRFI mandate current-directory per thread?
Lassi Kortela
(30 Apr 2020 12:14 UTC)
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Re: Should the SRFI mandate current-directory per thread?
Sebastien Marie
(30 Apr 2020 17:00 UTC)
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Re: Per-thread working directory and umask proposal
hga@xxxxxx
(28 Apr 2020 01:03 UTC)
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Re: Per-thread working directory and umask proposal
Marc Feeley
(28 Apr 2020 01:42 UTC)
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Re: Per-thread working directory and umask proposal
Marc Nieper-Wißkirchen
(30 Apr 2020 07:11 UTC)
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Re: Per-thread working directory and umask proposal
Marc Feeley
(30 Apr 2020 11:33 UTC)
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> On Apr 23, 2020, at 2:55 PM, Marc Nieper-Wißkirchen <xxxxxx@nieper-wisskirchen.de> wrote: > >> >> Your argument is similar to saying that we could get rid of “set!” altogether by just doing (define var (box val)) whenever we want a mutable variable. Then get rid of set-car! similarly… to just have box and set-box!. Very MLish! I view that as taking something away from my language, not the other way around! > > This is actually the situation with the parameter objects of > R7RS-small where mutation is not standardized; so all you can do is to > put boxes into the parameters. I would rather be able to set the > parameter objects directly. (Apart from this being more direct and > more Scheme-like, it would work on `current-input-port', etc., as > well.) > > It probably depends on what would be used more, the (b) semantics or > the (c) semantics. If the (b) semantics are at least not incorrect for > most use cases, there's at least a way through the box thing to get to > the (c) type of semantics. Let me give you a real situation where the c semantics is superior and can’t be emulated with the b semantics. Say you want to debug a program remotely, so from your program’s main thread you start a thread that implements a REPL through a network connection. The following code could be used with Gambit, but it should be easy to adapt to other Scheme’s with threads and networking: ;; remote-repl.scm (define (remote-repl addr) (let ((conn (open-tcp-client addr))) (let loop () (display "\n> " conn) (force-output conn) (write (eval (read conn)) conn) (loop)))) (thread-start! (make-thread (lambda () (remote-repl "localhost:7000")))) In another terminal you run “nc -l 7000” to listen for the connection. Now in this terminal you can inspect through this REPL what is happening in your program. If your program’s main thread has an issue because its binding for the current-directory parameter is not /tmp as it should be, then you can simply enter (current-directory "/tmp") in the remote REPL. It is that simple because the main thread and the REPL thread share the same parameter cells. With the b semantics you can’t implement this because current-directory is a predefined parameter and you can’t wrap it in a “box” to get the sharing semantics (more generally semantics b doesn’t scale because even if you could easily add the “box” to this parameter, you would also need to change all the places that access the current-directory in all your code and libraries, some of which are part of the runtime system that you can’t change). My point is essentially that you shouldn’t make parameter assignment a sort of second class citizen when using threads. Marc