zvariant/serialized/
written.rs

1#[cfg(unix)]
2use crate::OwnedFd;
3use std::ops::Deref;
4
5use crate::serialized::Context;
6
7/// Represents the return value of [`crate::to_writer`] function.
8///
9/// It mainly contains the size of serialized bytes in a specific format.
10///
11/// On Unix platforms, it also contains a list of file descriptors, whose indexes are included in
12/// the serialized bytes.
13#[derive(Debug)]
14pub struct Written {
15    size: usize,
16    context: Context,
17    #[cfg(unix)]
18    fds: Vec<OwnedFd>,
19}
20
21impl Written {
22    /// Create a new `Written` instance.
23    pub fn new(size: usize, context: Context) -> Self {
24        Self {
25            size,
26            context,
27            #[cfg(unix)]
28            fds: vec![],
29        }
30    }
31
32    /// Set the file descriptors.
33    #[cfg(unix)]
34    pub fn set_fds(mut self, fds: impl IntoIterator<Item = impl Into<OwnedFd>>) -> Self {
35        self.fds = fds.into_iter().map(Into::into).collect();
36        self
37    }
38
39    /// The size of the serialized bytes.
40    pub fn size(&self) -> usize {
41        self.size
42    }
43
44    /// The encoding context.
45    pub fn context(&self) -> Context {
46        self.context
47    }
48
49    /// Consume `self` and return the file descriptors.
50    ///
51    /// This method is only available on Unix platforms.
52    #[cfg(unix)]
53    pub fn into_fds(self) -> Vec<OwnedFd> {
54        self.fds
55    }
56
57    /// The file descriptors that are references by the serialized bytes.
58    ///
59    /// This method is only available on Unix platforms.
60    #[cfg(unix)]
61    pub fn fds(&self) -> &[OwnedFd] {
62        &self.fds
63    }
64}
65
66impl Deref for Written {
67    type Target = usize;
68
69    fn deref(&self) -> &Self::Target {
70        &self.size
71    }
72}
zvariant/serialized/written.rs

zvariant/serialized/
written.rs
