[MacRuby-devel] fork() and MacRuby

[robert gleeson]

Ernie --

It's not immediately obvious to me how I would spawn a process that is a copy of the parent using Service Management and right now "framework('servicemanagement')" doesn't seem to expose the functions mentioned in the documentation for service management .. I've tried traversing through Object.constants for a namespace they might reside under but no joy. 

I'll try again tomorrow.

Thanks,
Rob

On 17 Feb 2010, at 21:02, Ernest N. Prabhakar, Ph.D. wrote:

> Hi Robert,
> 
> On Feb 17, 2010, at 8:18 AM, robert gleeson wrote:
>> Thanks Ernie --
>> 
>> I'm going to go through the documentation for the Service Management framework and see what I can come up with. I was hoping I wouldn't need to maintain two separate code bases for MacRuby and MRI but  if i can launch processes without reverting to a hack it's always a good thing.
> 
> Let us know what you come up with.  It is possible we may be able to (partially) emulate fork() using Service Management someday...
> 
> -E
> 
>> 
>> Thanks,
>> Rob
>> On 17 Feb 2010, at 15:45, Ernest N. Prabhakar, Ph.D. wrote:
>> 
>>> The recommendation is to use launchd to spawn processes via Service Management:
>>> 
>>> http://developer.apple.com/mac/library/documentation/General/Reference/ServiceManagementFwRef/ServiceManagement_h/index.html
>>> 
>>> But I don't think anybody has wrapped it yet...
>>> 
>>> -- Ernie P.
>>> 
>>> On Feb 17, 2010, at 5:42 AM, robert gleeson wrote:
>>> 
>>>> Hi --
>>>> 
>>>> I'm aware fork() is not implemented in MacRuby yet, and it may never be from what I read but I'd just like to introduce a use case i've come across recently that might have you reconsider?
>>>> 
>>>> I am writing ruby bindings for the features exposed in the "sandbox" header, and you really need to fork a process if you don't want your parent process to inherit the restrictions the sandbox imposes .. 
>>>> 
>>>> I came across the problem with CoreFoundation not allowing you to fork() without immediately executing exec() , and I presume this is one of the reasons fork() in MacRuby might not be implemented but is there any workaround to see fork() being implemented? 
>>>> 
>>>> Just thought I'd add that to the table.
>>>> 
>>>> Thanks,
>>>> Rob
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