use shared_resource_ipc::SharedResource;
use serde::{Serialize, Deserialize};

#[derive(Clone, Default, Serialize, Deserialize, Default)]
struct DemoStruct {
    number: usize,
    name: String,
}

fn main() {
    let default_value: DemoStruct = DemoStruct::default();

    // Open a shared resource using a unique identifier and a default value. If this process
    // is not the first to initialize the resource, the default value is ignored.
    let shared_resource: SharedResource<DemoStruct> = 
        SharedResource::new("unique_name", default_value)
        .expect("failed to open shared resource");

    // Access the stored value using a clojure.
    let _result = shared_resource.access(|data: &DemoStruct| {
        // read the data here...
        let value = data.clone();
        // a value can be returned from the clojure
        return value;
    }).expect("failed to access shared resource");

    // The value can be accessed mutably as well.
    let _result = shared_resource.access(|data| {
        (*data).number = 42;
    }).expect("failed to mutably access shared resource");

    // No cleaning is required: it is handled when the resource is dropped.
}