Hi list, I try to use squeak to execute the following basic Smalltalk script (in a file "hello.st") "Transcript show: 'Hello world'; cr." from the command line with Squeak. This works as expected with both GNU Smalltalk and Pharo, but with Squeak nothing happens: Squeak seems to wait forever. If I add "Smalltalk snapshot: false andQuit: true." after the above line, the execution of the script terminates, but without printing anything. I use the Squeak 5.0-201608171728 VM and the Squeak5.1-16548 image. Any hints? Thank you.
On 21/02/17 20:51, Jacques Harmand wrote:
Hi list, I try to use squeak to execute the following basic Smalltalk script (in a file "hello.st http://hello.st") "Transcript show: 'Hello world'; cr." from the command line with Squeak. This works as expected with both GNU Smalltalk and Pharo, but with Squeak nothing happens: Squeak seems to wait forever. If I add "Smalltalk snapshot: false andQuit: true." after the above line, the execution of the script terminates, but without printing anything.
I haven't looked closely at latest Squeak (perhaps Pharo has coupled Transcript to stdout for headless mode?), but Transcript is not the same thing as stdout - so you wouldn't see anything on stdout.
regards, Göran
Maybe
ExternalCommandShell
http://wiki.squeak.org/squeak/6023
this is of some help?
--Hannes
On 2/22/17, Göran Krampe goran@krampe.se wrote:
On 21/02/17 20:51, Jacques Harmand wrote:
Hi list, I try to use squeak to execute the following basic Smalltalk script (in a file "hello.st http://hello.st") "Transcript show: 'Hello world'; cr." from the command line with Squeak. This works as expected with both GNU Smalltalk and Pharo, but with Squeak nothing happens: Squeak seems to wait forever. If I add "Smalltalk snapshot: false andQuit: true." after the above line, the execution of the script terminates, but without printing anything.
I haven't looked closely at latest Squeak (perhaps Pharo has coupled Transcript to stdout for headless mode?), but Transcript is not the same thing as stdout - so you wouldn't see anything on stdout.
regards, Göran _______________________________________________ Beginners mailing list Beginners@lists.squeakfoundation.org http://lists.squeakfoundation.org/mailman/listinfo/beginners
Thanks for your answers. Alas ExternalCommandShell does not seem to work, the VM seems to wait forever. I also tried various other ways: "OSProcess thisOSProcess stdOut nextPutAll: 'Hello world'." "FileStream stdout nextPutAll: 'Hello world'." "StandardFileStream stdout nextPutAll: 'Hello world'." "TranscriptStream redirectToStdOut: true. Transcript show: 'Hello world'." ... but so far none of them seems to work. I also tried "-headless" and "-vm-display-null", but again this does not seem to help. Any pointer would be appreciated!
2017-02-22 15:49 GMT+01:00 H. Hirzel hannes.hirzel@gmail.com:
Maybe
ExternalCommandShell http://wiki.squeak.org/squeak/6023this is of some help?
--Hannes
On 2/22/17, Göran Krampe goran@krampe.se wrote:
On 21/02/17 20:51, Jacques Harmand wrote:
Hi list, I try to use squeak to execute the following basic Smalltalk script (in a file "hello.st http://hello.st") "Transcript show: 'Hello world'; cr." from the command line with Squeak. This works as expected with both GNU Smalltalk and Pharo, but with Squeak nothing happens: Squeak seems to wait forever. If I add "Smalltalk snapshot: false andQuit: true." after the above line, the execution of the script terminates, but without printing anything.
I haven't looked closely at latest Squeak (perhaps Pharo has coupled Transcript to stdout for headless mode?), but Transcript is not the same thing as stdout - so you wouldn't see anything on stdout.
regards, Göran _______________________________________________ Beginners mailing list Beginners@lists.squeakfoundation.org http://lists.squeakfoundation.org/mailman/listinfo/beginners
Beginners mailing list Beginners@lists.squeakfoundation.org http://lists.squeakfoundation.org/mailman/listinfo/beginners
Hi Jacques,
Output to the standard output stream may be buffered, and that may be part of the problem. Try doing this and see if you get the expected output:
StandardFileStream stdout nextPutAll: 'Hello world'; cr; flush.
On Wed, Feb 22, 2017 at 05:09:21PM +0100, Jacques Harmand wrote:
Thanks for your answers. Alas ExternalCommandShell does not seem to work, the VM seems to wait forever.
Be sure that you are running Squeak in the foreground with no '&' at the end of your command. If you start it in background with a '&' then the stdin, stdout, and stderr streams will be disconnected from your console, and both the image and the VM will appear to be stuck as the ExternalCommandShell tries to read from the disconnected input stream.
I just tried ExternalCommandShell with the latest Squeak, and I see that it probably needs a few more #flush to get the prompt to display properly. I'll have to look into that :-)
Dave
I also tried various other ways: "OSProcess thisOSProcess stdOut nextPutAll: 'Hello world'." "FileStream stdout nextPutAll: 'Hello world'." "StandardFileStream stdout nextPutAll: 'Hello world'." "TranscriptStream redirectToStdOut: true. Transcript show: 'Hello world'." ... but so far none of them seems to work. I also tried "-headless" and "-vm-display-null", but again this does not seem to help. Any pointer would be appreciated!
2017-02-22 15:49 GMT+01:00 H. Hirzel hannes.hirzel@gmail.com:
Maybe
ExternalCommandShell http://wiki.squeak.org/squeak/6023this is of some help?
--Hannes
On 2/22/17, G??ran Krampe goran@krampe.se wrote:
On 21/02/17 20:51, Jacques Harmand wrote:
Hi list, I try to use squeak to execute the following basic Smalltalk script (in a file "hello.st http://hello.st") "Transcript show: 'Hello world'; cr." from the command line with Squeak. This works as expected with both GNU Smalltalk and Pharo, but with Squeak nothing happens: Squeak seems to wait forever. If I add "Smalltalk snapshot: false andQuit: true." after the above line, the execution of the script terminates, but without printing anything.
I haven't looked closely at latest Squeak (perhaps Pharo has coupled Transcript to stdout for headless mode?), but Transcript is not the same thing as stdout - so you wouldn't see anything on stdout.
regards, G??ran _______________________________________________ Beginners mailing list Beginners@lists.squeakfoundation.org http://lists.squeakfoundation.org/mailman/listinfo/beginners
Beginners mailing list Beginners@lists.squeakfoundation.org http://lists.squeakfoundation.org/mailman/listinfo/beginners
Beginners mailing list Beginners@lists.squeakfoundation.org http://lists.squeakfoundation.org/mailman/listinfo/beginners
Thank you also for your answer! Alas it doesn't work: the VM just waits forever (at least it does not execute the "Smalltalk snapshot: false andQuit: true." on the next line), and nothing is printed at all... And yes, I run Squeak in the foreground without a '&' at the end of the command line, with: /path/to/squeak <options> /path/to/Squeak.image $(readlink -f "$1") where <options> are "-headless" or "-vm-display-null -vm-sound-null".
If that's important, the Squeak 5.0-201608171728 VM I use is cogspur64linux, compiled by myself, because the standard VM that can be downloaded on squeak.org aborts with: "pthread_setschedparam failed: Operation not permitted Read e.g. https://github.com/OpenSmalltalk/opensmalltalk-vm/releases/tag/r3732#linux" and I cannot do what is explained on that page because I'm not the admin of the computer.
2017-02-23 1:47 GMT+01:00 David T. Lewis lewis@mail.msen.com:
Hi Jacques,
Output to the standard output stream may be buffered, and that may be part of the problem. Try doing this and see if you get the expected output:
StandardFileStream stdout nextPutAll: 'Hello world'; cr; flush.
On Wed, Feb 22, 2017 at 05:09:21PM +0100, Jacques Harmand wrote:
Thanks for your answers. Alas ExternalCommandShell does not seem to work, the VM seems to wait forever.
Be sure that you are running Squeak in the foreground with no '&' at the end of your command. If you start it in background with a '&' then the stdin, stdout, and stderr streams will be disconnected from your console, and both the image and the VM will appear to be stuck as the ExternalCommandShell tries to read from the disconnected input stream.
I just tried ExternalCommandShell with the latest Squeak, and I see that it probably needs a few more #flush to get the prompt to display properly. I'll have to look into that :-)
Dave
I also tried various other ways: "OSProcess thisOSProcess stdOut nextPutAll: 'Hello world'." "FileStream stdout nextPutAll: 'Hello world'." "StandardFileStream stdout nextPutAll: 'Hello world'." "TranscriptStream redirectToStdOut: true. Transcript show: 'Hello
world'."
... but so far none of them seems to work. I also tried "-headless" and "-vm-display-null", but again this does not seem to help. Any pointer would be appreciated!
2017-02-22 15:49 GMT+01:00 H. Hirzel hannes.hirzel@gmail.com:
Maybe
ExternalCommandShell http://wiki.squeak.org/squeak/6023this is of some help?
--Hannes
On 2/22/17, G??ran Krampe goran@krampe.se wrote:
On 21/02/17 20:51, Jacques Harmand wrote:
Hi list, I try to use squeak to execute the following basic Smalltalk script
(in
a file "hello.st http://hello.st") "Transcript show: 'Hello world'; cr." from the command line with Squeak. This works as expected with
both GNU
Smalltalk and Pharo, but with Squeak nothing happens: Squeak seems
to
wait forever. If I add "Smalltalk snapshot: false andQuit: true." after the above line, the execution of the script terminates, but without printing anything.
I haven't looked closely at latest Squeak (perhaps Pharo has coupled Transcript to stdout for headless mode?), but Transcript is not the
same
thing as stdout - so you wouldn't see anything on stdout.
regards, G??ran _______________________________________________ Beginners mailing list Beginners@lists.squeakfoundation.org http://lists.squeakfoundation.org/mailman/listinfo/beginners
Beginners mailing list Beginners@lists.squeakfoundation.org http://lists.squeakfoundation.org/mailman/listinfo/beginners
Beginners mailing list Beginners@lists.squeakfoundation.org http://lists.squeakfoundation.org/mailman/listinfo/beginners
Beginners mailing list Beginners@lists.squeakfoundation.org http://lists.squeakfoundation.org/mailman/listinfo/beginners
I just installed the standard VM from squeak.org on another computer on which I have admin privileges, and I get the exact same results (or rather absence of results), so it's not related to the fact that I used a non-completely-standard VM: "OSProcess thisOSProcess stdOut nextPutAll: 'Hello world'. Smalltalk snapshot: false andQuit: true." waits forever "Transcript show: 'Hello world'; cr. Smalltalk snapshot: false andQuit: true." terminates but does not print anything "TranscriptStream redirectToStdOut: true. Transcript show: 'Hello world'. Smalltalk snapshot: false andQuit: true." terminates but does not print anything "StandardFileStream stdout nextPutAll: 'Hello world'. Smalltalk snapshot: false andQuit: true." waits forever "ExternalCommandShell start. Transcript show: 'Hello world'. ExternalCommandShell stop. Smalltalk snapshot: false andQuit: true." waits forever "StandardFileStream stdout nextPutAll: 'Hello world'; cr; flush. Smalltalk snapshot: false andQuit: true." waits forever "TranscriptStream redirectToStdOut: true. Transcript show: 'Hello world'. Transcript endEntry. Smalltalk snapshot: false andQuit: true." terminates but does not print anything
2017-02-23 8:57 GMT+01:00 Jacques Harmand jacques.harmand@gmail.com:
Thank you also for your answer! Alas it doesn't work: the VM just waits forever (at least it does not execute the "Smalltalk snapshot: false andQuit: true." on the next line), and nothing is printed at all... And yes, I run Squeak in the foreground without a '&' at the end of the command line, with: /path/to/squeak <options> /path/to/Squeak.image $(readlink -f "$1") where <options> are "-headless" or "-vm-display-null -vm-sound-null".
If that's important, the Squeak 5.0-201608171728 VM I use is cogspur64linux, compiled by myself, because the standard VM that can be downloaded on squeak.org aborts with: "pthread_setschedparam failed: Operation not permitted Read e.g. https://github.com/OpenSmalltalk/opensmalltalk-vm/releases/tag/r3732#linux " and I cannot do what is explained on that page because I'm not the admin of the computer.
2017-02-23 1:47 GMT+01:00 David T. Lewis lewis@mail.msen.com:
Hi Jacques,
Output to the standard output stream may be buffered, and that may be part of the problem. Try doing this and see if you get the expected output:
StandardFileStream stdout nextPutAll: 'Hello world'; cr; flush.
On Wed, Feb 22, 2017 at 05:09:21PM +0100, Jacques Harmand wrote:
Thanks for your answers. Alas ExternalCommandShell does not seem to work, the VM seems to wait forever.
Be sure that you are running Squeak in the foreground with no '&' at the end of your command. If you start it in background with a '&' then the stdin, stdout, and stderr streams will be disconnected from your console, and both the image and the VM will appear to be stuck as the ExternalCommandShell tries to read from the disconnected input stream.
I just tried ExternalCommandShell with the latest Squeak, and I see that it probably needs a few more #flush to get the prompt to display properly. I'll have to look into that :-)
Dave
I also tried various other ways: "OSProcess thisOSProcess stdOut nextPutAll: 'Hello world'." "FileStream stdout nextPutAll: 'Hello world'." "StandardFileStream stdout nextPutAll: 'Hello world'." "TranscriptStream redirectToStdOut: true. Transcript show: 'Hello
world'."
... but so far none of them seems to work. I also tried "-headless" and "-vm-display-null", but again this does not seem to help. Any pointer would be appreciated!
2017-02-22 15:49 GMT+01:00 H. Hirzel hannes.hirzel@gmail.com:
Maybe
ExternalCommandShell http://wiki.squeak.org/squeak/6023this is of some help?
--Hannes
On 2/22/17, G??ran Krampe goran@krampe.se wrote:
On 21/02/17 20:51, Jacques Harmand wrote:
Hi list, I try to use squeak to execute the following basic Smalltalk
script (in
a file "hello.st http://hello.st") "Transcript show: 'Hello world'; cr." from the command line with Squeak. This works as expected with
both GNU
Smalltalk and Pharo, but with Squeak nothing happens: Squeak seems
to
wait forever. If I add "Smalltalk snapshot: false andQuit: true." after the above line, the execution of the script terminates, but without printing anything.
I haven't looked closely at latest Squeak (perhaps Pharo has coupled Transcript to stdout for headless mode?), but Transcript is not the
same
thing as stdout - so you wouldn't see anything on stdout.
regards, G??ran _______________________________________________ Beginners mailing list Beginners@lists.squeakfoundation.org http://lists.squeakfoundation.org/mailman/listinfo/beginners
Beginners mailing list Beginners@lists.squeakfoundation.org http://lists.squeakfoundation.org/mailman/listinfo/beginners
Beginners mailing list Beginners@lists.squeakfoundation.org http://lists.squeakfoundation.org/mailman/listinfo/beginners
Beginners mailing list Beginners@lists.squeakfoundation.org http://lists.squeakfoundation.org/mailman/listinfo/beginners
beginners@lists.squeakfoundation.org
-
David T. Lewis -
Göran Krampe -
H. Hirzel -
Jacques Harmand