perspective_server/
local_session.rs

1// ┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓
2// ┃ ██████ ██████ ██████       █      █      █      █      █ █▄  ▀███ █       ┃
3// ┃ ▄▄▄▄▄█ █▄▄▄▄▄ ▄▄▄▄▄█  ▀▀▀▀▀█▀▀▀▀▀ █ ▀▀▀▀▀█ ████████▌▐███ ███▄  ▀█ █ ▀▀▀▀▀ ┃
4// ┃ █▀▀▀▀▀ █▀▀▀▀▀ █▀██▀▀ ▄▄▄▄▄ █ ▄▄▄▄▄█ ▄▄▄▄▄█ ████████▌▐███ █████▄   █ ▄▄▄▄▄ ┃
5// ┃ █      ██████ █  ▀█▄       █ ██████      █      ███▌▐███ ███████▄ █       ┃
6// ┣━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┫
7// ┃ Copyright (c) 2017, the Perspective Authors.                              ┃
8// ┃ ╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌ ┃
9// ┃ This file is part of the Perspective library, distributed under the terms ┃
10// ┃ of the [Apache License 2.0](https://www.apache.org/licenses/LICENSE-2.0). ┃
11// ┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛
12
13use perspective_client::Session;
14
15use crate::ffi;
16use crate::server::{Server, ServerError};
17
18/// A struct for implementing [`perspective_client::Session`] against an
19/// same-process [`Server`] instance.
20///
21/// See also [`perspective_client::ProxySession`] for implement the trait
22/// against an arbitrary remote transport.
23#[derive(Debug)]
24pub struct LocalSession {
25    pub(crate) id: u32,
26    pub(crate) server: Server,
27    pub(crate) closed: bool,
28}
29
30impl Drop for LocalSession {
31    fn drop(&mut self) {
32        if !self.closed {
33            tracing::error!("`Session` dropped without `Session::close`");
34        }
35    }
36}
37
38impl Session<ServerError> for LocalSession {
39    async fn handle_request(&self, request: &[u8]) -> Result<(), ServerError> {
40        let request = ffi::Request::from(request);
41        let responses = self.server.server.handle_request(self.id, &request);
42        let mut results = Vec::with_capacity(responses.size());
43        for response in responses.iter_responses() {
44            let cb = self
45                .server
46                .callbacks
47                .read()
48                .await
49                .get(&response.client_id())
50                .cloned();
51
52            if let Some(f) = cb {
53                results.push(f(response.msg()).await);
54            }
55        }
56
57        if let Some(cb) = &self.server.on_poll_request {
58            cb(&self.server).await?
59        } else {
60            results.push(self.server.poll().await);
61        }
62
63        results.into_iter().collect()
64    }
65
66    async fn close(mut self) {
67        self.closed = true;
68        self.server.server.close_session(self.id);
69        self.server
70            .callbacks
71            .write()
72            .await
73            .remove(&self.id)
74            .expect("Already closed");
75    }
76}
perspective_server/local_session.rs

perspective_server/
local_session.rs
