g_object_new shared memory

[Hieu Le Trung]

Hi,

I'm using GLib in my application, and I'm using g_object_new to allocate
memory of an object. As in C++ specification, there is "new" placement
technique that can allow us to place a new object into our predefined
memory region. And we can also do with malloc by redefine the malloc
fuction.

I wonder if we can do it with g_object_new or not? The purpose is to
have g_object_new to allocate memory on my own memory region.

Thanks,
-Hieu

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[David Nečas (Yeti)-2]

On Mon, Oct 26, 2009 at 05:09:42PM +0700, Hieu Le Trung wrote:
> I'm using GLib in my application, and I'm using g_object_new to allocate
> memory of an object. As in C++ specification, there is "new" placement
> technique that can allow us to place a new object into our predefined
> memory region. And we can also do with malloc by redefine the malloc
> fuction.
>
> I wonder if we can do it with g_object_new or not? The purpose is to
> have g_object_new to allocate memory on my own memory region.

I don't think it's possible because g_type_create_instance() has the
allocation function hardcoded (g_slice_alloc0() at this moment).

Yeti

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[Hieu Le Trung]

On Monday, October 26, 2009 5:22 PM, David Nečas wrote:
> On Mon, Oct 26, 2009 at 05:09:42PM +0700, Hieu Le Trung wrote:
> > I wonder if we can do it with g_object_new or not? The purpose is to
> > have g_object_new to allocate memory on my own memory region.
>
> I don't think it's possible because g_type_create_instance() has the
> allocation function hardcoded (g_slice_alloc0() at this moment).

Can I change the g_slide_alloc0 to use my own alloc function so that it can be allocated in a shared region?
Or can I override the constructor of my class so that the private data is allocated in a shared region, then in other application, I'll reconstruct the object using g_object_new and then set the private data pointer manually?

Regards,
-Hieu
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