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Review of SRFI 170 through 3.2 I/O hga@xxxxxx (22 Apr 2020 17:13 UTC)
Re: Review of SRFI 170 through 3.2 I/O John Cowan (22 Apr 2020 20:42 UTC)
Re: Review of SRFI 170 through 3.2 I/O Lassi Kortela (22 Apr 2020 20:53 UTC)
Re: Review of SRFI 170 through 3.2 I/O John Cowan (22 Apr 2020 21:29 UTC)
Re: Review of SRFI 170 through 3.2 I/O hga@xxxxxx (22 Apr 2020 23:57 UTC)
Re: Review of SRFI 170 through 3.2 I/O Lassi Kortela (22 Apr 2020 21:36 UTC)
Re: Review of SRFI 170 through 3.2 I/O Lassi Kortela (22 Apr 2020 21:42 UTC)
Re: Review of SRFI 170 through 3.2 I/O John Cowan (23 Apr 2020 03:37 UTC)
Re: Review of SRFI 170 through 3.2 I/O Lassi Kortela (23 Apr 2020 07:02 UTC)
Re: Review of SRFI 170 through 3.2 I/O Lassi Kortela (23 Apr 2020 07:05 UTC)
Re: Review of SRFI 170 through 3.2 I/O Göran Weinholt (23 Apr 2020 10:53 UTC)
Re: Review of SRFI 170 through 3.2 I/O Marc Feeley (23 Apr 2020 11:09 UTC)
Per-thread umask Lassi Kortela (23 Apr 2020 11:30 UTC)
Re: Per-thread umask Marc Feeley (23 Apr 2020 11:43 UTC)
Re: Per-thread umask Lassi Kortela (23 Apr 2020 11:47 UTC)
Re: Per-thread umask Marc Feeley (23 Apr 2020 11:59 UTC)
Re: Per-thread umask John Cowan (23 Apr 2020 15:03 UTC)
Re: Per-thread umask Marc Feeley (23 Apr 2020 15:20 UTC)
Re: Per-thread umask Lassi Kortela (23 Apr 2020 16:02 UTC)
Re: Per-thread umask John Cowan (23 Apr 2020 16:03 UTC)
Re: Review of SRFI 170 through 3.2 I/O Lassi Kortela (23 Apr 2020 11:14 UTC)
current directory and openat() et al Lassi Kortela (23 Apr 2020 11:27 UTC)
Re: current directory and openat() et al Marc Feeley (23 Apr 2020 13:56 UTC)
Re: Review of SRFI 170 through 3.2 I/O Sebastien Marie (23 Apr 2020 13:32 UTC)
Definition of working directory Lassi Kortela (23 Apr 2020 13:51 UTC)
Re: Definition of working directory Marc Feeley (23 Apr 2020 14:06 UTC)
Re: Definition of working directory Sebastien Marie (23 Apr 2020 15:31 UTC)
Re: Review of SRFI 170 through 3.2 I/O Marc Nieper-Wißkirchen (23 Apr 2020 15:24 UTC)
Separate high-level and low-level APIs Lassi Kortela (23 Apr 2020 15:38 UTC)
Re: Separate high-level and low-level APIs Marc Nieper-Wißkirchen (23 Apr 2020 15:43 UTC)
Re: Separate high-level and low-level APIs Lassi Kortela (23 Apr 2020 15:48 UTC)
Re: Separate high-level and low-level APIs hga@xxxxxx (23 Apr 2020 16:19 UTC)
Re: Separate high-level and low-level APIs Lassi Kortela (23 Apr 2020 16:42 UTC)
Re: Review of SRFI 170 through 3.2 I/O hga@xxxxxx (23 Apr 2020 15:40 UTC)
Re: Review of SRFI 170 through 3.2 I/O Marc Feeley (23 Apr 2020 11:33 UTC)
Normalizing the current directory Lassi Kortela (23 Apr 2020 11:38 UTC)
Re: Normalizing the current directory Marc Feeley (23 Apr 2020 11:55 UTC)
Re: Normalizing the current directory Lassi Kortela (23 Apr 2020 12:09 UTC)
Per-thread working directory and umask proposal John Cowan (23 Apr 2020 14:13 UTC)
Re: Per-thread working directory and umask proposal Marc Feeley (23 Apr 2020 14:16 UTC)
Re: Per-thread working directory and umask proposal John Cowan (23 Apr 2020 16:07 UTC)
Re: Per-thread working directory and umask proposal Marc Nieper-Wißkirchen (23 Apr 2020 16:13 UTC)
Re: Per-thread working directory and umask proposal Marc Feeley (23 Apr 2020 16:25 UTC)
Re: Per-thread working directory and umask proposal Marc Nieper-Wißkirchen (23 Apr 2020 17:26 UTC)
Re: Per-thread working directory and umask proposal John Cowan (23 Apr 2020 18:38 UTC)
Re: Per-thread working directory and umask proposal Marc Feeley (23 Apr 2020 17:55 UTC)
Re: Per-thread working directory and umask proposal Marc Nieper-Wißkirchen (23 Apr 2020 18:55 UTC)
Re: Per-thread working directory and umask proposal John Cowan (23 Apr 2020 20:12 UTC)
Re: Per-thread working directory and umask proposal Shiro Kawai (23 Apr 2020 22:17 UTC)
Re: Per-thread working directory and umask proposal Lassi Kortela (24 Apr 2020 08:43 UTC)
Re: Per-thread working directory and umask proposal Shiro Kawai (24 Apr 2020 11:27 UTC)
Re: Per-thread working directory and umask proposal Lassi Kortela (24 Apr 2020 11:37 UTC)
Re: Per-thread working directory and umask proposal Shiro Kawai (24 Apr 2020 12:22 UTC)
Re: Per-thread working directory and umask proposal Marc Feeley (24 Apr 2020 12:28 UTC)
Re: Per-thread working directory and umask proposal Marc Nieper-Wißkirchen (26 Apr 2020 09:19 UTC)
Re: Per-thread working directory and umask proposal John Cowan (27 Apr 2020 22:45 UTC)
Re: Per-thread working directory and umask proposal Shiro Kawai (27 Apr 2020 23:42 UTC)
Re: Per-thread working directory and umask proposal John Cowan (28 Apr 2020 00:41 UTC)
Re: Per-thread working directory and umask proposal Shiro Kawai (28 Apr 2020 00:56 UTC)
os-working-directory Lassi Kortela (29 Apr 2020 09:23 UTC)
Re: os-working-directory Duy Nguyen (29 Apr 2020 09:28 UTC)
current-umask Lassi Kortela (29 Apr 2020 09:43 UTC)
Windows Lassi Kortela (29 Apr 2020 09:47 UTC)
Re: Windows Lassi Kortela (29 Apr 2020 09:49 UTC)
Re: Windows John Cowan (29 Apr 2020 14:53 UTC)
Re: current-umask hga@xxxxxx (29 Apr 2020 13:14 UTC)
Re: current-umask Lassi Kortela (29 Apr 2020 13:25 UTC)
Re: current-umask Marc Feeley (29 Apr 2020 13:31 UTC)
Re: current-umask Marc Feeley (29 Apr 2020 13:45 UTC)
Re: current-umask Lassi Kortela (29 Apr 2020 14:12 UTC)
Re: current-umask hga@xxxxxx (29 Apr 2020 16:20 UTC)
Re: current-umask Lassi Kortela (29 Apr 2020 16:44 UTC)
Re: current-umask John Cowan (30 Apr 2020 04:02 UTC)
Re: os-working-directory John Cowan (30 Apr 2020 02:49 UTC)
Re: os-working-directory Lassi Kortela (30 Apr 2020 06:12 UTC)
Re: os-working-directory Sebastien Marie (30 Apr 2020 07:19 UTC)
Re: os-working-directory Sebastien Marie (30 Apr 2020 07:53 UTC)
Should the SRFI mandate current-directory per thread? Lassi Kortela (30 Apr 2020 12:14 UTC)
Re: Should the SRFI mandate current-directory per thread? Sebastien Marie (30 Apr 2020 17:00 UTC)
Re: Per-thread working directory and umask proposal hga@xxxxxx (28 Apr 2020 01:03 UTC)
Re: Per-thread working directory and umask proposal Marc Feeley (28 Apr 2020 01:41 UTC)
Re: Per-thread working directory and umask proposal Marc Nieper-Wißkirchen (30 Apr 2020 07:11 UTC)
Re: Per-thread working directory and umask proposal Marc Feeley (30 Apr 2020 11:33 UTC)

Re: Per-thread working directory and umask proposal Marc Feeley 23 Apr 2020 14:16 UTC

> On Apr 23, 2020, at 10:13 AM, John Cowan <xxxxxx@ccil.org> wrote:
>
> Here's my proposal, after reflection;
>
> 1) SRFI 170 `working-directory` and `umask` are per-thread if and only if the other R7RS procedures that accept pathnames are implemented using per-thread versions in a particular Scheme implementation providing SRFI 170.
>
> 2) SRFI 170 does not specify whether these procedures are parameters or not.
>
> 3) R7RS does not specify (or prevent) assignment to a parameter as opposed to binding it; therefore `set-working-directory` and `set-umask` are the only portable ways to change their values, whether per-thread or per-process.
>
> 4) For the avoidance of doubt, all this will be spelled out in the SRFI text.
>
> Comments?

Just to make sure you didn’t miss this:

I understand that SRFI 170 is about the POSIX API where chdir(), and also umask(), have a well defined behaviour.

I would like however for SRFI 170 to include a statement that calls to chdir() do not affect the behaviour of open-input-file, etc.  This has to be very clear because many programmers will assume that there is a link between the process CWD and the interpretation of relative paths by open-input-file, etc.

This suggests a need to add to SRFI 170 a procedure such as (process-path->absolute string) that interprets “string” according to the process’ CWD and returns an absolute path that can be used by open-input-file, etc

Marc