AIDL 클라이언트

마지막으로, 아까 추가한 서비스에 대한 클라이언트를 러스트로 만들겠습니다.

birthday_service/src/client.rs:

//! Birthday service.
use com_example_birthdayservice::aidl::com::example::birthdayservice::IBirthdayService::IBirthdayService;
use com_example_birthdayservice::binder;

const SERVICE_IDENTIFIER: &str = "birthdayservice";

/// Connect to the BirthdayService.
pub fn connect() -> Result<binder::Strong<dyn IBirthdayService>, binder::StatusCode> {
    binder::get_interface(SERVICE_IDENTIFIER)
}

/// Call the birthday service.
fn main() -> Result<(), binder::Status> {
    let name = std::env::args()
        .nth(1)
        .unwrap_or_else(|| String::from("Bob"));
    let years = std::env::args()
        .nth(2)
        .and_then(|arg| arg.parse::<i32>().ok())
        .unwrap_or(42);

    binder::ProcessState::start_thread_pool();
    let service = connect().expect("Failed to connect to BirthdayService");
    let msg = service.wishHappyBirthday(&name, years)?;
    println!("{msg}");
    Ok(())
}

birthday_service/Android.bp:

rust_binary {
    name: "birthday_client",
    crate_name: "birthday_client",
    srcs: ["src/client.rs"],
    rustlibs: [
        "com.example.birthdayservice-rust",
        "libbinder_rs",
    ],
    prefer_rlib: true,
}

클라이언트는 libbirthdayservice에 의존하지 않음에 주목하세요.

빌드하고, 가상 디바이스로 넣고, 실행합니다:

m birthday_client
adb push "$ANDROID_PRODUCT_OUT/system/bin/birthday_client /data/local/tmp"
adb shell /data/local/tmp/birthday_client Charlie 60

Happy Birthday Charlie, congratulations with the 60 years!