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FFI question. Is it possible to unload loaded external library

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Denis Kudriashov

FFI question. Is it possible to unload loaded external library

Hello,

I need implement remote updating some dll's for running pharo application. This dll's used by FFI.
I want done this by unloading dll from VM. Then loading new updated dll. And then continue app execution.
Is it possible?

Or only way is to restart pharo?

Mariano Martinez Peck

Re: FFI question. Is it possible to unload loaded external library

On Tue, Nov 30, 2010 at 9:35 PM, Denis Kudriashov <[hidden email]> wrote:

Hello,

I need implement remote updating some dll's for running pharo application. This dll's used by FFI.
I want done this by unloading dll from VM. Then loading new updated dll. And then continue app execution.
Is it possible?

what does it mean exactly to "load" a dll and "unload" ??
cheers

mariano

Or only way is to restart pharo?

Igor Stasenko

Re: FFI question. Is it possible to unload loaded external library

On 1 December 2010 15:57, Mariano Martinez Peck <[hidden email]> wrote:

>
>
> On Tue, Nov 30, 2010 at 9:35 PM, Denis Kudriashov <[hidden email]>
> wrote:
>>
>> Hello,
>>
>> I need implement remote updating some dll's for running pharo application.
>> This dll's used by FFI.
>> I want done this by unloading dll from VM. Then loading new updated dll.
>> And then continue app execution.
>> Is it possible?
>

see #unloadModule:
it should work for modules, loaded via FFI i think. But i never tried
to do that.

> what does it mean exactly to "load" a dll and "unload" ??
> cheers
>
> mariano
>
>>
>> Or only way is to restart pharo?
>
>

--
Best regards,
Igor Stasenko AKA sig.

Denis Kudriashov

Re: FFI question. Is it possible to unload loaded external library

In reply to this post by Mariano Martinez Peck

By loaded dll I mean what happens when I call some dll function.
After this I can't update this dll.

I will try #unloadModule: as Igor adviced

2010/12/1 Mariano Martinez Peck <[hidden email]>

On Tue, Nov 30, 2010 at 9:35 PM, Denis Kudriashov <[hidden email]> wrote:

Hello,

I need implement remote updating some dll's for running pharo application. This dll's used by FFI.
I want done this by unloading dll from VM. Then loading new updated dll. And then continue app execution.
Is it possible?

what does it mean exactly to "load" a dll and "unload" ??
cheers

mariano

Or only way is to restart pharo?

Mariano Martinez Peck

Re: FFI question. Is it possible to unload loaded external library

On Wed, Dec 1, 2010 at 10:44 PM, Denis Kudriashov <[hidden email]> wrote:

By loaded dll I mean what happens when I call some dll function.

Ok.....but this is done automatically by FFI. I mean, you don't need to code something to get the library loaded.

After this I can't update this dll.

By updating you mean that you would like to change the library to a new version while pharo is running and you would like to use the new version?

I will try #unloadModule: as Igor adviced

2010/12/1 Mariano Martinez Peck <[hidden email]>

On Tue, Nov 30, 2010 at 9:35 PM, Denis Kudriashov <[hidden email]> wrote:

Hello,

I need implement remote updating some dll's for running pharo application. This dll's used by FFI.
I want done this by unloading dll from VM. Then loading new updated dll. And then continue app execution.
Is it possible?

what does it mean exactly to "load" a dll and "unload" ??
cheers

mariano

Or only way is to restart pharo?