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52 lines
1.4 KiB
Rust
52 lines
1.4 KiB
Rust
use super::{FileAdapter, GetMetadata, ReadBox};
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use anyhow::Result;
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use std::io::Write;
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#[dyn_clonable::clonable]
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pub trait WritingFileAdapterTrait: GetMetadata + Send + Clone {
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fn adapt_write(
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&self,
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a: super::AdaptInfo,
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detection_reason: &crate::matching::SlowMatcher,
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oup: &mut dyn Write,
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) -> Result<()>;
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}
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pub struct WritingFileAdapter {
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inner: Box<dyn WritingFileAdapterTrait>,
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}
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impl WritingFileAdapter {
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pub fn new(inner: Box<dyn WritingFileAdapterTrait>) -> WritingFileAdapter {
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WritingFileAdapter { inner }
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}
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}
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impl GetMetadata for WritingFileAdapter {
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fn metadata(&self) -> &super::AdapterMeta {
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self.inner.metadata()
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}
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}
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impl FileAdapter for WritingFileAdapter {
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fn adapt(
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&self,
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a: super::AdaptInfo,
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detection_reason: &crate::matching::SlowMatcher,
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) -> anyhow::Result<ReadBox> {
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let (r, w) = crate::pipe::pipe();
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let cc = self.inner.clone();
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let detc = detection_reason.clone();
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std::thread::spawn(move || {
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let mut oup = w;
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let ai = a;
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let res = cc.adapt_write(ai, &detc, &mut oup);
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if let Err(e) = res {
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oup.write_err(std::io::Error::new(std::io::ErrorKind::Other, e))
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.expect("could not write err");
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}
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});
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Ok(Box::new(r))
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}
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}
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