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Using sibling modules [message #1521]

Tue, 24 February 2009 18:32

Ramsey Harris

Messages: 22
Registered: July 2009

Junior Member

Champs,

I have a package with two modules, ModA and ModB. In ModB.c I include ModA.h. In the application config script, only ModB is included with xdc.useModule(). Should ModB.xs:module$use() include ModA with xdc.useModule() to ensure that ModA's module$meta$init() and module$use() functions are called? Or does this happen automatically?

Thank you
~ Ramsey

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Re: Using sibling modules [message #1535 is a reply to message #1521]

Wed, 25 February 2009 17:26

Bob Frankel

Messages: 12
Registered: July 2009

Junior Member

Ramsey Harris wrote:
> Champs,
>
> I have a package with two modules, ModA and ModB. In ModB.c I include
> ModA.h. In the application config script, only ModB is included with
> xdc.useModule(). Should ModB.xs:module$use() include ModA with
> xdc.useModule() to ensure that ModA's module$meta$init() and
> module$use() functions are called? Or does this happen automatically?
>
> Thank you
> ~ Ramsey

as a rule, whenever ModB #include's ModA.h, there should be a
corresponding xdc.useModule for ModA in ModB.xs. without "using" ModB
in this manner, the module$use() function of ModB will *not* be called.
failure to "use" modules at config time that are "used" in your target
code can often result in linker errors.

as for module$meta$init(), this function is called when the package
containing the corresponding module is loaded -- independent of whether
the module is "used" or not.... the purpose of module$meta$init is to
essentially "finish" some initialization of config params that could not
be handled statically in the .xdc file. for example, the default value
of Task.stackSize might be a function of the current target/platform --
known only at config time.

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Re: In AGR While Creating Datapool, "Link to Datapool" is not visible [message #1788227]

Wed, 30 May 2018 16:21

Eclipse User

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