43 lines
969 B
Rust
43 lines
969 B
Rust
use syscall::error::*;
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use syscall::scheme::Scheme;
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pub struct ZeroScheme;
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impl Scheme for ZeroScheme {
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fn open(&self, _path: &[u8], _flags: usize, _uid: u32, _gid: u32) -> Result<usize> {
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Ok(0)
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}
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fn dup(&self, _file: usize, _buf: &[u8]) -> Result<usize> {
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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(&self, _file: usize, buf: &mut [u8]) -> Result<usize> {
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let mut i = 0;
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while i < buf.len() {
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buf[i] = 0;
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i += 1;
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}
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Ok(i)
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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(&self, _file: usize, buffer: &[u8]) -> Result<usize> {
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Ok(buffer.len())
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}
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fn fsync(&self, _file: usize) -> Result<usize> {
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Ok(0)
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}
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/// Close the file `number`
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fn close(&self, _file: usize) -> Result<usize> {
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Ok(0)
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}
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}
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