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This commit is contained in:
Lucien Greathouse 2020-02-18 22:42:31 -08:00
parent 838e8f6bde
commit b4963f4ff7
3 changed files with 78 additions and 16 deletions
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24
vfs/src/lib.rs
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@ -8,11 +8,23 @@ use std::sync::{Arc, Mutex};
pub use noop_backend::NoopBackend;
pub use std_backend::StdBackend;
pub trait VfsBackend {
fn read(&self, path: &Path) -> io::Result<Vec<u8>>;
fn write(&self, path: &Path, data: &[u8]) -> io::Result<()>;
fn read_dir(&self, path: &Path) -> io::Result<ReadDir>;
fn metadata(&self, path: &Path) -> io::Result<Metadata>;
mod sealed {
use super::*;
pub trait Sealed {}
impl Sealed for NoopBackend {}
impl Sealed for StdBackend {}
}
pub trait VfsBackend: sealed::Sealed {
fn read(&mut self, path: &Path) -> io::Result<Vec<u8>>;
fn write(&mut self, path: &Path, data: &[u8]) -> io::Result<()>;
fn read_dir(&mut self, path: &Path) -> io::Result<ReadDir>;
fn metadata(&mut self, path: &Path) -> io::Result<Metadata>;
fn watch(&mut self, path: &Path) -> io::Result<()>;
fn unwatch(&mut self, path: &Path) -> io::Result<()>;
}
pub struct DirEntry {
@ -52,7 +64,6 @@ impl Metadata {
}
struct VfsLock {
data: (),
backend: Box<dyn VfsBackend>,
}
@ -86,7 +97,6 @@ pub struct Vfs {
impl Vfs {
pub fn new<B: VfsBackend + 'static>(backend: B) -> Self {
let lock = VfsLock {
data: (),
backend: Box::new(backend),
};