Xtype extensions

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Tue, 10/17/2017 - 03:45
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a.fiore
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Xtype extensions

Hi,

I have a device using Connext Micro and other devices in the system are using Connext Core.  Some topics that were developed for Core are using the @Optional keyword on some fields in the IDL. I found that these topics will not match up with the Micro device. Is there any way to get these topics to match other than removing the @Optional extension? Is there any plan for Micro to support Xtype extensions?

Thanks,

Anne Fiore

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Wed, 10/18/2017 - 00:06
Gerardo Pardo
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Joined: 06/02/2010
Posts: 602

Hi Anne,

Yes our current plan is to support  @optional and other DDS-XTYPES features in the next release of Connext DDS Micro. In the mean time you could use sequneces with max length of 1 to emulate the behavior of optional  members.

That is substitute:

struct MyStruct {
    @optional Foo foo_member;
};

With:

struct MyStruct {
    sequence<Foo, 1> foo_member;
};   

Regards,

Gerardo

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