[Pywps-dev] [GSOC] First week & my progress

[Jonas Eberle]

Hi, 

please be aware the "ctrl-z" is not pausing the process, it puts the process in the background (still running). From the terminal you can then start another process. So this is not about pausing and resuming. I quickly found an example how it could work, first put the process in the background, second stop (kill -STOP) the process and third resume (kill -CONT) the process: 
http://vertito.blogspot.de/2007/11/stop-pause-and-continue-linux-process.html 

But be aware, pausing and resuming are always OS dependent tasks. This need to be taken into account. 

Cheers, 
Jonas 

----- Am 22. Mai 2016 um 23:20 schrieb Jachym Cepicky <jachym.cepicky at gmail.com>: 

> Hi,
> thanks for the info. About "controlling": we need at least "kill", "pause" and
> "resume" process. As far as I understand it, kill could be implemented using
> os.kill (if you know the process ID from the operating system point of view -
> it should be stored in the sqlite database for now). For pause and resume, I
> would suggest to find similar way as hitting "ctrl-z" in the command line,
> which "pauses" running process in the terminal and to get it in frontend again,
> you run the "fg" command - if you undestand what I'm talking about. I did not
> study, how this is usually done on system level (in unix systems), this is just
> my practical observation

> J

> so 21. 5. 2016 v 23:14 odesílatel Jan Rudolf < rudolja1 at fit.cvut.cz > napsal:

>> Hello,

>> I want to inform you about my status: my semester in school ends
>> tomorrow. I've got final exams from Graph algorithms this Thursday and
>> from Linear algebra a week after. Hope, I make it without problems
>> (these two are the hardest), the rest will be ok/not that time
>> consuming.

>> Jachym specified top 4 goals for me on IRC meeting:
>> step 1: you get PyWPS up and running and you will be able to run several
>> asynchronous processes on your computer
>> step 2: find out, what is the python way to control (and if possible) in
>> background running processes
>> step 3: create API (rest) for this controlling
>> step 4: if there is time, create web UI

>> I have working PyWPS with Apache on my computer. Don't know if it's the
>> case, that I have Mac OS, but I had a little bit trouble to set up
>> according to Github - so I can check it later on Ubuntu for example
>> and/or make a manual for Mac. So step 1 is done.

>> Next is step 2. I would like to in next week or two create demonstrative
>> applications (not interfering PyWPS repo) about possibilities of the
>> control of processes in Python (with the focus on our functionality) as
>> template cases for an integration into PyWPS source code. Then
>> integration, REST API, so on...

>> All the best, Jan Rudolf

>> _______________________________________________
>> pywps-dev mailing list
>> pywps-dev at lists.osgeo.org
>> http://lists.osgeo.org/mailman/listinfo/pywps-dev
> _______________________________________________
> pywps-dev mailing list
> pywps-dev at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/pywps-dev
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/pywps-dev/attachments/20160523/bc14e448/attachment.html>