Cyclone interoperability with data types about dust-dds HOT 5 CLOSED

We have added a test to verify this and it seems to work without problems. Can you maybe give definition of the struct that you are using? Might be this is some corner case that we have not considered.

from dust-dds.

Here is the IDL file that I try using dust_dds_gen to generate from, the generated file comes with issues I have to manually resolve these, and after they are resolved cyclone can't even pick up the data from the dds bus.

@jrebelo

module School {
typedef double M_Double;
typedef int32_t M_Int32;
typedef int64_t M_Int64;

struct Student {
M_Int32 studentID;
M_Int32 studentPassPhrase;
};

struct Room {
M_Int64 roomNumber;
M_Int32 courseNumber;
};
};

module MyUniversity {
struct MyUniversityTopic {
@key School::Student student;
School::Room room;
School::M_Double age;
School::Student student2;
sequenceCommonStuff::Student,100 students;
School::Student student3;
};
};

from dust-dds.

Thank you for sharing your IDL. Which type are you publishing? Do you have a simple example of Dust DDS and Cyclone communicating in the system you are using? This is just to eliminate the option of this being a problem not at all related with the data.

There are also some errors in this IDL, in particular "int32_r" and "int64_t" are not recognized types in the IDL spec and the definition of the sequence is also not syntactically correct. The sharing of data between two modules is also something that I don't think is a good practice (and doesn't work at least in our case) since modules should be used to avoid name conflicts. So I modified it to the following and it compiles without problems:

module School {
            typedef double M_Double;
            typedef int32 M_Int32;
            typedef int64 M_Int64;

            struct Student {
                M_Int32 studentID;
                M_Int32 studentPassPhrase;
            };

            struct Room {
                M_Int64 roomNumber;
                M_Int32 courseNumber;
            };

            struct MyUniversityTopic {
                @key Student student;
                Room room;
                M_Double age;
                Student student2;
                sequence<Student,100> students;
                Student student3;
            };
        };

I have not yet tried any communication but I will wait with that until you comment further.

from dust-dds.

I want you to Create a dust-DDs publisher for struct MyUniversity topic then have a C++ Cyclone subscriber to listen to that data

This would prove that everything works.

Thank you.

from dust-dds.

Interoperability between Cyclone DDS and Dust DDS is verified using the tests on our Continuous Integration system. In the PR #300 there is an additional test with a meaningful example for nested types. Here is a link to the relevant results: https://app.circleci.com/pipelines/github/s2e-systems/dust-dds/1761/workflows/0e5154c9-b5e1-43b1-a6a5-f8461e3498f9/jobs/6618

from dust-dds.