Generated Service API

Binder generates a trait for each interface definition.

birthday_service/aidl/com/example/birthdayservice/IBirthdayService.aidl:

/** Birthday service interface. */
interface IBirthdayService {
    /** Generate a Happy Birthday message. */
    String wishHappyBirthday(String name, int years);
}

out/soong/.intermediates/.../birthdayservice/IBirthdayService.rs:

trait IBirthdayService {
    fn wishHappyBirthday(&self, name: &str, years: i32) -> binder::Result<String>;
}

Your service will need to implement this trait, and your client will use this trait to talk to the service.

  • Point out how the generated function signature, specifically the argument and return types, correspond the interface definition.
    • String for an argument results in a different Rust type than String as a return type.