135a48ca7e
* Reuse std::io::Error for raw *nix errno This commit removes custom `yanix::Errno` and instead (as was previously suggested) reuses `std::io::Error` to generate and wrap raw *nix errno value. * Update wasi-common to use new Yanix error type This commit updates `wasi-common` to use new way of handling raw OS error in `yanix`; i.e., via re-use of `std::io::Error` instead of a custom `Errno` enum. * Fix formatting * Unwrap if io::Error created from raw OS error This commit calls `unwrap` on `err` if that one was created via `io::Error::last_os_error()`. It also refactors error matching in several syscalls on the BSD platform (mainly).
23 lines
615 B
Rust
23 lines
615 B
Rust
use crate::{Error, Result};
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use std::os::unix::prelude::*;
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#[derive(Debug, Copy, Clone)]
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#[repr(i32)]
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pub enum PosixFadviseAdvice {
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Normal = libc::POSIX_FADV_NORMAL,
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Sequential = libc::POSIX_FADV_SEQUENTIAL,
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Random = libc::POSIX_FADV_RANDOM,
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NoReuse = libc::POSIX_FADV_NOREUSE,
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WillNeed = libc::POSIX_FADV_WILLNEED,
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DontNeed = libc::POSIX_FADV_DONTNEED,
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}
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pub unsafe fn posix_fadvise(
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fd: RawFd,
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offset: libc::off_t,
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len: libc::off_t,
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advice: PosixFadviseAdvice,
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) -> Result<()> {
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Error::from_success_code(libc::posix_fadvise(fd, offset, len, advice as libc::c_int))
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}
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