94a1a0fa0c
To avoid various bugs regarding the typing of file descriptors, we newtype them into a simple wrapper type. - Document some stuff.
35 lines
905 B
Rust
35 lines
905 B
Rust
use core::str;
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use syscall::Result;
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use super::{Scheme, Fd};
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pub struct DebugScheme;
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impl Scheme for DebugScheme {
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fn open(&mut self, path: &[u8], _flags: usize) -> Result<usize> {
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println!("DebugScheme::open: {}", unsafe { str::from_utf8_unchecked(path) });
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Ok(0)
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}
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/// Read the file `number` into the `buffer`
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///
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/// Returns the number of bytes read
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fn read(&mut self, _file: Fd, _buffer: &mut [u8]) -> Result<usize> {
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Ok(0)
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}
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/// Write the `buffer` to the `file`
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///
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/// Returns the number of bytes written
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fn write(&mut self, _file: Fd, buffer: &[u8]) -> Result<usize> {
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//TODO: Write bytes, do not convert to str
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print!("{}", unsafe { str::from_utf8_unchecked(buffer) });
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Ok(buffer.len())
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}
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/// Close the file `number`
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fn close(&mut self, _file: Fd) -> Result<()> {
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Ok(())
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}
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}
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