tcl-mac

[MACTCL] http::get -channel broken in tcl 8.5.16 on MacOS 10.9

[Russell O. <ro...@uw...>]

The command http::geturl -channel is broken on MacOS 10.9.5 (and likely 
other versions). Transfers fail while writing to the channel with 
"resource temporarily unavailable". Transfers seem to work if -channel 
not specified. I have appended a simple example and posted a bug report
<http://core.tcl.tk/tcl/tktview/ed29c4da21f4c0a7858a0f5ae4aae20dd42fc818>

If anyone knows of a reasonable workaround, that would be great. I can 
almost certainly use a progress callback to manually write the data (and 
thus avoid using a channel) but unless there is some way to purge the 
data from the state array after writing it, that would fail on large 
files. (I see how to read the data, but not purge it.)

8.5.16 does fix the menu crashing bug that prevented me from updating 
past 8.5.11, but unfortunately this new bug is a show-stopper.

-- Russell

package require http

set outname "saturn.jpg"
set url 
"http://apod.nasa.gov/apod/image/1409/saturnequinox_cassini_7227.jpg"
set out [open "temp" w]
set token [::http::geturl $url -channel $out]
close $out
package require http

On MacOS with ActiveState Tcl 8.5.16 I see:
Error in startup script: error reading "sock8": resource temporarily 
unavailable
     while executing
"::http::geturl $url -channel $out"
     invoked from within
"set token [::http::geturl $url -channel $out]"
     (file "tcl http example.tcl" line 6)

Re: [MACTCL] http::get -channel broken in tcl 8.5.16 on MacOS 10.9

[Kevin W. <kw...@co...>]

Russell,

On 10/9/14, 3:49 PM, Russell Owen wrote:
> package require http
>
> set outname "saturn.jpg"
> set url
> "http://apod.nasa.gov/apod/image/1409/saturnequinox_cassini_7227.jpg"
> set out [open "temp" w]
> set token [::http::geturl $url -channel $out]
> close $out

I see the bug, but have no idea what the problem is--I don't maintain 
the http package and so wouldn't know where to begin debugging it.

Any reason  you are using a Tcl call instead of something from Python, 
cf. urllib?

--Kevin

-- 
Kevin Walzer
Code by Kevin/Mobile Code by Kevin
http://www.codebykevin.com
http://www.wtmobilesoftware.com

Re: [MACTCL] http::get -channel broken in tcl 8.5.16 on MacOS 10.9

[Andreas K. <and...@ac...>]

The ticket at core is
    http://core.tcl.tk/tcl/tktview/ed29c4da21f4c0a7858a0f5ae4aae20dd42fc818


On Thu, Oct 9, 2014 at 2:49 PM, Kevin Walzer <kw...@co...> wrote:
> Russell,
>
> On 10/9/14, 3:49 PM, Russell Owen wrote:
>> package require http
>>
>> set outname "saturn.jpg"
>> set url
>> "http://apod.nasa.gov/apod/image/1409/saturnequinox_cassini_7227.jpg"
>> set out [open "temp" w]
>> set token [::http::geturl $url -channel $out]
>> close $out
>
> I see the bug, but have no idea what the problem is--I don't maintain
> the http package and so wouldn't know where to begin debugging it.
>
> Any reason  you are using a Tcl call instead of something from Python,
> cf. urllib?
>
> --Kevin
>
> --
> Kevin Walzer
> Code by Kevin/Mobile Code by Kevin
> http://www.codebykevin.com
> http://www.wtmobilesoftware.com
>
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-- 
Andreas Kupries
Senior Tcl Developer
Code to Cloud: Smarter, Safer, Faster™
F: 778.786.1133
and...@ac..., http://www.activestate.com
Learn about Stackato for Private PaaS: http://www.activestate.com/stackato

21'st Tcl/Tk Conference: Nov 10-14, Portland, OR, USA --
http://www.tcl.tk/community/tcl2014/
Send mail to tcl...@go..., by Sep 8
Registration is open.

Re: [MACTCL] http::get -channel broken in tcl 8.5.16 on MacOS 10.9

[Kevin W. <kw...@co...>]

Andreas,

On 10/9/14, 5:59 PM, Andreas Kupries wrote:
> The ticket at core is
>      http://core.tcl.tk/tcl/tktview/ed29c4da21f4c0a7858a0f5ae4aae20dd42fc818

Thanks for doing more testing and tracking down the regression. I'm sure 
a fix will be committed soon.

--Kevin

-- 
Kevin Walzer
Code by Kevin/Mobile Code by Kevin
http://www.codebykevin.com
http://www.wtmobilesoftware.com

Re: [MACTCL] http::get -channel broken in tcl 8.5.16 on MacOS 10.9

[Andreas K. <and...@ac...>]

Heh, just wanted to say that the bisection points to a checkin made Aug 22
and the ticket has been assigned to the person who made that commit.
Together with a name for the original submitter of the change in
itself it should be possible to get this fixed.

Russel should see all the notification mails directly.


On Thu, Oct 9, 2014 at 3:47 PM, Kevin Walzer <kw...@co...> wrote:
> Andreas,
>
> On 10/9/14, 5:59 PM, Andreas Kupries wrote:
>>
>> The ticket at core is
>>
>> http://core.tcl.tk/tcl/tktview/ed29c4da21f4c0a7858a0f5ae4aae20dd42fc818
>
>
> Thanks for doing more testing and tracking down the regression. I'm sure a
> fix will be committed soon.
>
>
> --Kevin
>
> --
> Kevin Walzer
> Code by Kevin/Mobile Code by Kevin
> http://www.codebykevin.com
> http://www.wtmobilesoftware.com



-- 
Andreas Kupries
Senior Tcl Developer
Code to Cloud: Smarter, Safer, Faster™
F: 778.786.1133
and...@ac..., http://www.activestate.com
Learn about Stackato for Private PaaS: http://www.activestate.com/stackato

21'st Tcl/Tk Conference: Nov 10-14, Portland, OR, USA --
http://www.tcl.tk/community/tcl2014/
Send mail to tcl...@go..., by Sep 8
Registration is open.

Re: [MACTCL] http::get -channel broken in tcl 8.5.16 on MacOS 10.9

[Russell O. <ro...@uw...>]

On 10/9/14 2:49 PM, Kevin Walzer wrote:
> Russell,
>
> On 10/9/14, 3:49 PM, Russell Owen wrote:
>> package require http
>>
>> set outname "saturn.jpg"
>> set url
>> "http://apod.nasa.gov/apod/image/1409/saturnequinox_cassini_7227.jpg"
>> set out [open "temp" w]
>> set token [::http::geturl $url -channel $out]
>> close $out
>
> I see the bug, but have no idea what the problem is--I don't maintain
> the http package and so wouldn't know where to begin debugging it.
>
> Any reason  you are using a Tcl call instead of something from Python,
> cf. urllib?

It is a Tkinter application (naturally) and I want to display the 
progress of the download. Is it possible to safely do this with a Python 
http library? If so, that does sound like the best solution.

For the record: the Tcl community jumped on this bug and fixed it for 
8.5 and 8.6. I was very impressed!

-- Russell