Hey all,

I've been working on getting my program running and I've converted my previous code to using the tempfile crate. Currently my code is organized like this and I apologize if I completely butcher the explanation:

I'll try to keep some brevity here but if more code is necessary to explain what I'm trying to do, let me know and I'll add it.

main.rs:

[...]
let mut proxy = tor_proxy_controller::start_proxy(pid);

//do proxy things

tor_proxy_controller::delete_arti_bin(proxy);
[...]

tor_proxy_controller.rs:

pub fn start_proxy(pid: u32) -> Result<Child,Error>{
    let arti = temp_file_controller::create_arti_bin(pid);
[...]

temp_file_controller.rs:

pub fn create_arti_bin(pid: u32) -> Result<PathBuf, std::io::Error>{
    let temp_dir = tempdir()?;
    let filename = format!("arti_{}.exe",pid);
    let file = temp_dir.path().join(filename);

    fs::write(&file, ARTI_BYTES)?;

    Ok(file)
}

pub fn delete_arti_bin(bin:Child, dir:TempDir) -> Result<(), Box<dyn std::error::Error>>{
    drop(bin);
    dir.close()?;
    Ok(())
}

I think I know how to keep the temp file and directory around at least until I'm done using it in main. By passing the PathBuf from temp_file_controller to proxy_controller, then passing the resulting Result<Child,Error> to main, I think that keeps everything around and running.

If I'm just returning the file I create within the temporary directory, how can I drop the file and close() the directory from main later on? At that point in main it's a Result<Child,Error> type.

Can I extract out the tempdir from the Child portion of the proxy object and be able to access it that way?

Or is there a way for me to somehow hold onto the PathBuf and TempDir created in temp_file_controller values so that I can just call delete_arti_bin and have the information already held so I don't need to pass anything at all?

I'm also thinking of the future where I'd like to be able to create multiple proxies simultaneously on various ports. Whatever I make here, I'd like to be extendable to handling multiple binaries.

I hope this all makes sense...kind of a stream of consciousness so thank you for your assistance as always.

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