Re: avoiding relocations in type registration



On Fri, 21 Apr 2006, Matthias Clasen wrote:

On 4/21/06, Tim Janik <timj imendio com> wrote:

GType
g_type_register_static_simple (GType             parent_type,
                             const gchar      *type_name,
                              guint16           class_size,

can you make this a guint instead?

                              GClassInitFunc    class_init,
                              guint16           instance_size,

and this? i don't think restricting to guint16 here really buys us anything.

sure, I'll change it. I was just copying the types from GTypeInfo.


The current trivial implementation fills a GTypeInfo struct on the
stack, but it should be possible to avoid the use of a struct
altogether.

you mean inside g_type_register_static_simple? i don't see what's
wrong with the way you did it, i'd leave it as that.

What I meant is that check_type_info_I and type_data_make_W poke all
the fields out of the info struct again; it is not kept around after the node
is constructed. Thus one could avoid setting up the struct in the first place
and pass the fields directly to that check_type_info_I and type_data_make_W.
But 'm fine with keeping the current approach.

one could, yes. but i don't see the point in that, given that g_type_register_static() is already written and will have to be
maintained anyway.


Matthias


---
ciaoTJ



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