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Fix close, add dup

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This commit is contained in:
Jeremy Soller 2016-09-11 17:31:21 -06:00
parent 951831c4bb
commit 2fffe3ee77
6 changed files with 73 additions and 14 deletions
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11
kernel/scheme/mod.rs
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@ -113,16 +113,21 @@ pub trait Scheme {
/// Returns a file descriptor or an error
fn open(&mut self, path: &[u8], flags: usize) -> Result<usize>;
/// Duplicate an open file descriptor
///
/// Returns a file descriptor or an error
fn dup(&mut self, file: usize) -> Result<usize>;
/// Read from some file descriptor into the `buffer`
///
/// Returns the number of bytes read
fn read(&mut self, fd: usize, buffer: &mut [u8]) -> Result<usize>;
fn read(&mut self, file: usize, buffer: &mut [u8]) -> Result<usize>;
/// Write the `buffer` to the file descriptor
///
/// Returns the number of bytes written
fn write(&mut self, fd: usize, buffer: &[u8]) -> Result<usize>;
fn write(&mut self, file: usize, buffer: &[u8]) -> Result<usize>;
/// Close the file descriptor
fn close(&mut self, fd: usize) -> Result<()>;
fn close(&mut self, file: usize) -> Result<()>;
}