bp3d_os/module/module.rs
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28
29use crate::module::library::Library;
30use crate::module::metadata::Metadata;
31use std::fmt::{Debug, Display, Formatter};
32
33/// This represents a module shared object.
34#[derive(Debug)]
35pub struct Module<L> {
36 lib: L,
37 metadata: Metadata,
38 pub(super) id: usize,
39 pub(super) ref_count: usize,
40}
41
42impl<L> Display for Module<L> {
43 fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
44 self.metadata.fmt(f)
45 }
46}
47
48impl<L: Library> Module<L> {
49 /// Constructs a new [Module] from an existing [Library] handle.
50 ///
51 /// # Arguments
52 ///
53 /// * `lib`: the library to wrap.
54 /// * `metadata`: module metadata.
55 ///
56 /// returns: Module
57 pub fn new(lib: L, metadata: Metadata) -> Self {
58 Module {
59 lib,
60 metadata,
61 id: 0,
62 ref_count: 1,
63 }
64 }
65
66 /// Gets a metadata key by its name.
67 ///
68 /// # Arguments
69 ///
70 /// * `key`: the key to read from the metadata (ex: NAME).
71 ///
72 /// returns: Option<&str>
73 pub fn get_metadata_key(&self, key: &str) -> Option<&str> {
74 self.metadata.get(key).map(|s| s.as_str())
75 }
76
77 /// Returns the library attached to this module.
78 pub fn lib(&self) -> &L {
79 &self.lib
80 }
81}