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Task definition and runners for Gleam

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midas src process.gleam
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src/process.gleam 

import gleam/result



pub type Process(m) {

    Pid

}



// NOTE references can be picked up without any reference to what type of process they correspond to, e.g. DOWN messages

pub type Monitor() {

    Reference

}



pub type Protocol(m) {

    Down(Monitor)

    Message(m)

}

// 

// pub type MyProtocol = Protocol(String)

//

// fn accept(x: MyProtocol) {

//     let Message(m) = x

//     m + 1

// }



pub external fn start_link(fn(fn() -> Protocol(m)) -> Nil) -> Process(m)

  = "process_native" "start_link"



pub external fn monitor(Process(m)) -> Monitor()

    = "process_native" "monitor"



pub external fn send(pid: Process(m), message: m) -> Result(Nil, Nil)

    = "erlang" "send"