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How to run a new image to execute a process

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Guillaume Larcheveque

How to run a new image to execute a process

Hello,

I want to run the generation of a mooseModel in a new image with a new vm process (To avoid freezing or occupying space of my first one and also have more available memory).

I know i can use OSProcess but Cyril told me it will not work on Windows and i don't want to be platform dependent.

Do you see another solution to do that?

Guillaume Larcheveque

Blondeau Vincent

Re: How to run a new image to execute a process

Hello,

The main problem under Windows is that the return value of the execution of the process cannot be received because the stdin stdout streams are not integrated.

But I think you should be able to launch the process and to find a way to communicate between both images (Http or file change?).

If you just want to avoid freezing, you can try to fork the import process.

Cheers,

Vincent

De : Pharo-dev [mailto:[hidden email]] De la part de Guillaume Larcheveque
Envoyé : lundi 29 février 2016 14:01
À : Pharo Development List
Objet : [Pharo-dev] How to run a new image to execute a process

Hello,

I want to run the generation of a mooseModel in a new image with a new vm process (To avoid freezing or occupying space of my first one and also have more available memory).

I know i can use OSProcess but Cyril told me it will not work on Windows and i don't want to be platform dependent.

Do you see another solution to do that?

Guillaume Larcheveque

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Damien Cassou-2

Re: How to run a new image to execute a process

In reply to this post by Guillaume Larcheveque

Guillaume Larcheveque <[hidden email]> writes:

> I want to run the generation of a mooseModel in a new image with a new vm
> process (To avoid freezing or occupying space of my first one and also have
> more available memory).

this is what happens for the launcher and it works on Windows:

execute
self needsSpurVm ifTrue: [
context singleImage launch: self class spurFullPath ]
ifFalse:[
context singleImage launch: self class vmFullPath].
self class quitOnLaunch
ifTrue: [ self quit ]

PhLImage>>launch: aFullPathString
"Use the VM that launched the current image to launch me"

^ OSProcess command: (self launchCommandWith: aFullPathString)

launchCommandWith: aFullPathString
| command vmCommand imagePath |
vmCommand := aFullPathString isEmpty
ifTrue: [ Smalltalk vm fullPath asString ]
ifFalse: [ aFullPathString ].
imagePath := file pathString.
command := $" asString , vmCommand , '" "' , imagePath , '"'.
^ command

--
Damien Cassou
http://damiencassou.seasidehosting.st

"Success is the ability to go from one failure to another without
losing enthusiasm." --Winston Churchill

Guillaume Larcheveque

Re: How to run a new image to execute a process

Thank you very much Damien :-)

we will do that

2016-02-29 14:21 GMT+01:00 Damien Cassou <[hidden email]>:

Guillaume Larcheveque <[hidden email]> writes:

> I want to run the generation of a mooseModel in a new image with a new vm
> process (To avoid freezing or occupying space of my first one and also have
> more available memory).

this is what happens for the launcher and it works on Windows:

execute
self needsSpurVm ifTrue: [
context singleImage launch: self class spurFullPath ]
ifFalse:[
context singleImage launch: self class vmFullPath].
self class quitOnLaunch
ifTrue: [ self quit ]

PhLImage>>launch: aFullPathString
"Use the VM that launched the current image to launch me"

^ OSProcess command: (self launchCommandWith: aFullPathString)

launchCommandWith: aFullPathString
| command vmCommand imagePath |
vmCommand := aFullPathString isEmpty
ifTrue: [ Smalltalk vm fullPath asString ]
ifFalse: [ aFullPathString ].
imagePath := file pathString.
command := $" asString , vmCommand , '" "' , imagePath , '"'.
^ command

--
Damien Cassou
http://damiencassou.seasidehosting.st

"Success is the ability to go from one failure to another without
losing enthusiasm." --Winston Churchill

Guillaume Larcheveque