35 lines
804 B
Rust
35 lines
804 B
Rust
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use std::io::prelude::*;
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use std::io;
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use fs::FatFileSystem;
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#[allow(dead_code)]
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pub struct FatFile {
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first_sector: u32,
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size: u32,
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offset: u32,
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}
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impl FatFile {
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pub fn new(first_sector: u32, size: u32) -> FatFile {
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FatFile { first_sector, size, offset: 0 }
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}
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}
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impl<T: Read+Seek> FatFileSystem<T> {
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pub fn file_from_cluster(&mut self, cluster: u32, size: u32) -> FatFile {
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FatFile {
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first_sector: self.sector_from_cluster(cluster),
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size: size,
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offset: 0,
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}
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}
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pub fn read(&mut self, file: &mut FatFile, buf: &mut [u8]) -> io::Result<usize> {
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self.seek_to_sector(file.first_sector as u64)?;
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let size = self.rdr.read(buf)?;
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file.offset += size as u32;
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Ok(size)
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}
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}
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