mirror of
https://github.com/fluencelabs/wasmer
synced 2024-12-13 14:25:32 +00:00
26 lines
675 B
Rust
26 lines
675 B
Rust
use std::io;
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use std::io::Error;
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use std::io::ErrorKind;
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use std::io::Read;
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pub struct FileDescriptor(libc::c_int);
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impl FileDescriptor {
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pub fn new(file_descriptor_number: libc::c_int) -> FileDescriptor {
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FileDescriptor(file_descriptor_number)
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}
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}
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impl Read for FileDescriptor {
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fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
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let file_descriptor: libc::c_int = self.0;
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let count =
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unsafe { libc::read(file_descriptor, buf.as_mut_ptr() as *mut libc::c_void, 1) };
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if count < 0 {
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Err(Error::new(ErrorKind::Other, "read error"))
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} else {
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Ok(count as usize)
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}
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}
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}
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