Hi Rob,
On Feb 17, 2010, at 4:45 PM, robert gleeson wrote:
> 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'm sorry, I didn't realize you wanted a true "fork"; SM just launches new
processes 'ab initio'. So, I'm afraid you're probably out of luck.
For the record, what exactly is the use case where you want/need to inherit the
parent environment in the sub-process?
-- Ernie P.
>
>
> 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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>>>>> http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
>>>>
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