limnus_asset_id/
owner.rs

1/*
2 * Copyright (c) Peter Bjorklund. All rights reserved. https://github.com/swamp/limnus
3 * Licensed under the MIT License. See LICENSE in the project root for license information.
4 */
5use crate::{AssetName, RawWeakId};
6use message_channel::Sender;
7use std::fmt::{Debug, Display};
8use tracing::info;
9
10// Event sent when owner is dropped
11#[derive(Debug)]
12pub struct DropMessage {
13    pub asset_id: RawWeakId,
14}
15
16// NOTE: Do NOT implement copy or clone for AssetOwner
17pub struct AssetOwner {
18    id: RawWeakId,
19    #[allow(unused)]
20    asset_name: Option<AssetName>,
21    drop_channel: Sender<DropMessage>,
22}
23
24impl Debug for AssetOwner {
25    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
26        let asset_name = self
27            .asset_name
28            .map_or("unknown".to_string(), |name| name.to_string());
29        write!(f, "({:?} {})", self.id, asset_name)
30    }
31}
32
33impl Display for AssetOwner {
34    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
35        write!(f, "{}", self.id)
36    }
37}
38
39impl PartialEq<Self> for AssetOwner {
40    fn eq(&self, other: &Self) -> bool {
41        self.id == other.id && self.asset_name == other.asset_name
42    }
43}
44
45impl PartialOrd<Self> for AssetOwner {
46    fn partial_cmp(&self, other: &Self) -> Option<std::cmp::Ordering> {
47        Some(self.id.cmp(&other.id))
48    }
49}
50
51impl Ord for AssetOwner {
52    fn cmp(&self, other: &Self) -> std::cmp::Ordering {
53        self.id.cmp(&other.id)
54    }
55}
56
57impl Eq for AssetOwner {}
58
59impl Drop for AssetOwner {
60    fn drop(&mut self) {
61        info!(id=%self.id, "notice: asset owner is dropped");
62        let _ = self.drop_channel.send(DropMessage { asset_id: self.id });
63    }
64}
65
66impl AssetOwner {
67    #[must_use]
68    pub const fn new(
69        id: RawWeakId,
70        asset_name: Option<AssetName>,
71        drop_channel: Sender<DropMessage>,
72    ) -> Self {
73        Self {
74            id,
75            asset_name,
76            drop_channel,
77        }
78    }
79
80    #[must_use]
81    pub const fn raw_id(&self) -> RawWeakId {
82        self.id
83    }
84
85    #[must_use]
86    pub const fn asset_name(&self) -> Option<AssetName> {
87        self.asset_name
88    }
89}
limnus_asset_id/owner.rs

limnus_asset_id/
owner.rs
