COVESA/capicxx-core-tools

Support optional elements in structs

kbirken opened this issue · 2 comments

kbirken commented

In AUTOSAR 18.10, optional struct fields have been introduced. In order to achieve compatibility of CommonAPI SOME/IP and AUTOSAR on the IPC level, it would be necessary to support optional struct fields also for CommonAPI SOME/IP.

As Franca IDL doesn't support optional struct fields, this would have to be defined on the deployment level, e.g. by the following specification:

for struct_fields {
  IsOptional : boolean (default: false);
}

The optional-flag is often combined with the possibility of setting a default value for the specific field. This is currently difficult to accomplish in Franca deployment models.

Note: It is not quite clear yet how the C++ API for this would look like.

BrunoLSilvaCTW commented

Hi @kbirken, support for optional elements in structs is not planned for CommonAPI.

kbirken commented

Hi @BrunoLSilvaCTW, thanks for this response from the past. :-)

  • 😄1