gawires_diff/
enc.rs

1use super::Control;
2use byteorder::{LittleEndian, WriteBytesExt};
3use integer_encoding::VarIntWriter;
4use std::io::{self, Write};
5
6pub const MAGIC: u32 = 0xB1DF;
7pub const VERSION: u32 = 0x1000;
8
9pub struct Writer<W>
10where
11    W: Write,
12{
13    w: W,
14}
15
16impl<W> Writer<W>
17where
18    W: Write,
19{
20    pub fn new(mut w: W) -> Result<Self, io::Error> {
21        w.write_u32::<LittleEndian>(MAGIC)?;
22        w.write_u32::<LittleEndian>(VERSION)?;
23
24        Ok(Self { w })
25    }
26
27    pub fn write(&mut self, c: &Control) -> Result<(), io::Error> {
28        let w = &mut self.w;
29
30        w.write_varint(c.add.len())?;
31        w.write_all(c.add)?;
32
33        w.write_varint(c.copy.len())?;
34        w.write_all(c.copy)?;
35
36        w.write_varint(c.seek)?;
37
38        Ok(())
39    }
40
41    pub fn flush(&mut self) -> Result<(), io::Error> {
42        self.w.flush()
43    }
44
45    pub fn into_inner(self) -> W {
46        self.w
47    }
48}
gawires_diff/enc.rs

gawires_diff/
enc.rs
