* bug#28921: [PROPOSED] Fix xdg timestamp error on 32-bit Emacs
@ 2017-10-21 3:04 Paul Eggert
2017-10-21 7:19 ` Eli Zaretskii
` (2 more replies)
0 siblings, 3 replies; 5+ messages in thread
From: Paul Eggert @ 2017-10-21 3:04 UTC (permalink / raw)
To: 28921, mvoteiza; +Cc: Paul Eggert
* lisp/xdg.el (xdg-thumb-mtime): Return an Emacs timestamp,
not an integer. This avoids signaling an error on 32-bit
Emacs, where timestamps typically do not fit into fixnums.
---
lisp/xdg.el | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/lisp/xdg.el b/lisp/xdg.el
index 76106f4258..6dcef74e4e 100644
--- a/lisp/xdg.el
+++ b/lisp/xdg.el
@@ -93,8 +93,8 @@ xdg-thumb-name
(concat (md5 (xdg-thumb-uri filename)) ".png"))
(defun xdg-thumb-mtime (filename)
- "Return modification time of FILENAME as integral seconds from the epoch."
- (floor (float-time (nth 5 (file-attributes filename)))))
+ "Return modification time of FILENAME as an Emacs timestamp."
+ (nth 5 (file-attributes filename)))
\f
;; XDG User Directories
--
2.13.6
^ permalink raw reply related [flat|nested] 5+ messages in thread* bug#28921: [PROPOSED] Fix xdg timestamp error on 32-bit Emacs
2017-10-21 3:04 bug#28921: [PROPOSED] Fix xdg timestamp error on 32-bit Emacs Paul Eggert
@ 2017-10-21 7:19 ` Eli Zaretskii
2017-10-21 9:11 ` Tino Calancha
2017-10-21 14:26 ` Mark Oteiza
2 siblings, 0 replies; 5+ messages in thread
From: Eli Zaretskii @ 2017-10-21 7:19 UTC (permalink / raw)
To: Paul Eggert; +Cc: mvoteiza, 28921
> From: Paul Eggert <eggert@cs.ucla.edu>
> Date: Fri, 20 Oct 2017 20:04:55 -0700
> Cc: Paul Eggert <eggert@cs.ucla.edu>
>
> * lisp/xdg.el (xdg-thumb-mtime): Return an Emacs timestamp,
> not an integer. This avoids signaling an error on 32-bit
> Emacs, where timestamps typically do not fit into fixnums.
Fine with me for the release branch.
Thanks.
^ permalink raw reply [flat|nested] 5+ messages in thread
* bug#28921: [PROPOSED] Fix xdg timestamp error on 32-bit Emacs
2017-10-21 3:04 bug#28921: [PROPOSED] Fix xdg timestamp error on 32-bit Emacs Paul Eggert
2017-10-21 7:19 ` Eli Zaretskii
@ 2017-10-21 9:11 ` Tino Calancha
2017-10-22 7:41 ` Paul Eggert
2017-10-21 14:26 ` Mark Oteiza
2 siblings, 1 reply; 5+ messages in thread
From: Tino Calancha @ 2017-10-21 9:11 UTC (permalink / raw)
To: Paul Eggert; +Cc: mvoteiza, 28921
Paul Eggert <eggert@cs.ucla.edu> writes:
> (defun xdg-thumb-mtime (filename)
> - "Return modification time of FILENAME as integral seconds from the epoch."
> - (floor (float-time (nth 5 (file-attributes filename)))))
> + "Return modification time of FILENAME as an Emacs timestamp."
> + (nth 5 (file-attributes filename)))
Maybe you could use here the new accesor `file-attribute-modification-time':
diff --git a/lisp/xdg.el b/lisp/xdg.el
index 4250faaeb4..9edc3d2629 100644
--- a/lisp/xdg.el
+++ b/lisp/xdg.el
@@ -94,8 +94,8 @@ xdg-thumb-name
(concat (md5 (xdg-thumb-uri filename)) ".png"))
(defun xdg-thumb-mtime (filename)
- "Return modification time of FILENAME as integral seconds from the epoch."
- (floor (float-time (nth 5 (file-attributes filename)))))
+ "Return modification time of FILENAME as an Emacs timestamp."
+ (file-attribute-modification-time (file-attributes filename)))
\f
;; XDG User Directories
^ permalink raw reply related [flat|nested] 5+ messages in thread
* bug#28921: [PROPOSED] Fix xdg timestamp error on 32-bit Emacs
2017-10-21 9:11 ` Tino Calancha
@ 2017-10-22 7:41 ` Paul Eggert
0 siblings, 0 replies; 5+ messages in thread
From: Paul Eggert @ 2017-10-22 7:41 UTC (permalink / raw)
To: Tino Calancha; +Cc: mvoteiza, 28921-done
Tino Calancha wrote:
> Maybe you could use here the new accesor `file-attribute-modification-time':
Thanks, good idea, I installed it that way into emacs-26. I prefer this to
float-time because float-time loses information on platforms like GNU/Linux
where typical file timestamps these days have about 61 bits of precision, which
is more than the 53 bits that Emacs floats have.
^ permalink raw reply [flat|nested] 5+ messages in thread
* bug#28921: [PROPOSED] Fix xdg timestamp error on 32-bit Emacs
2017-10-21 3:04 bug#28921: [PROPOSED] Fix xdg timestamp error on 32-bit Emacs Paul Eggert
2017-10-21 7:19 ` Eli Zaretskii
2017-10-21 9:11 ` Tino Calancha
@ 2017-10-21 14:26 ` Mark Oteiza
2 siblings, 0 replies; 5+ messages in thread
From: Mark Oteiza @ 2017-10-21 14:26 UTC (permalink / raw)
To: Paul Eggert; +Cc: 28921
On 20/10/17 at 08:04pm, Paul Eggert wrote:
> * lisp/xdg.el (xdg-thumb-mtime): Return an Emacs timestamp,
> not an integer. This avoids signaling an error on 32-bit
> Emacs, where timestamps typically do not fit into fixnums.
I had the following sitting in my tree, but I don't feel strongly either
way.
diff --git a/lisp/xdg.el b/lisp/xdg.el
index 76106f4258..f57ed5e683 100644
--- a/lisp/xdg.el
+++ b/lisp/xdg.el
@@ -93,8 +93,8 @@ xdg-thumb-name
(concat (md5 (xdg-thumb-uri filename)) ".png"))
(defun xdg-thumb-mtime (filename)
- "Return modification time of FILENAME as integral seconds from the epoch."
- (floor (float-time (nth 5 (file-attributes filename)))))
+ "Return modification time of FILENAME as seconds from the epoch."
+ (ffloor (float-time (nth 5 (file-attributes filename)))))
\f
;; XDG User Directories
^ permalink raw reply related [flat|nested] 5+ messages in thread
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2017-10-21 3:04 bug#28921: [PROPOSED] Fix xdg timestamp error on 32-bit Emacs Paul Eggert
2017-10-21 7:19 ` Eli Zaretskii
2017-10-21 9:11 ` Tino Calancha
2017-10-22 7:41 ` Paul Eggert
2017-10-21 14:26 ` Mark Oteiza
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