49 lines
1.0 KiB
Rust
49 lines
1.0 KiB
Rust
use std::sync::Arc;
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use std::ops::Deref;
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#[derive(Default, Clone)]
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pub struct SharedData {
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pub bytes: Arc<Vec<u8>>,
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pub offset: usize,
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pub len: usize,
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}
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impl SharedData {
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pub fn from_bytes(vec: Vec<u8>) -> SharedData {
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let len = vec.len();
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let bytes = Arc::from(vec);
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SharedData::new(bytes, 0, len)
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}
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pub fn new(bytes: Arc<Vec<u8>>, offset: usize, len: usize) -> SharedData {
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SharedData { bytes, offset, len }
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}
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pub fn as_slice(&self) -> &[u8] {
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&self.bytes[self.offset..self.offset + self.len]
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}
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pub fn range(&self, offset: usize, len: usize) -> SharedData {
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assert!(offset + len <= self.len);
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SharedData {
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bytes: self.bytes.clone(),
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offset: self.offset + offset,
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len: len,
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}
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}
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}
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impl Deref for SharedData {
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type Target = [u8];
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fn deref(&self) -> &Self::Target {
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self.as_slice()
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}
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}
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impl AsRef<[u8]> for SharedData {
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fn as_ref(&self) -> &[u8] {
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self.as_slice()
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}
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}
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