c2ba419409
* Correctly handle possibly misaligned pointers in readdir This reapplies #615, which was inadvertently reverted. * Tidy up unneeded `self::` qualifiers. * Make Dir's contents private. Also remove the `unsafe` from `impl_iter`. With `Dir`'s field being private, we can rely on the pointer being only what we've assigned to it. * Make `poll`'s timeout argument a `libc::c_int`. This clarifies that there are no subsequent conversions before calling the underlying libc API. * Use clock_gettime instead of clock_getres to get the time. * Mark FileType::from_raw as safe. It handles unknown values, so it can be marked safe.
38 lines
1.1 KiB
Rust
38 lines
1.1 KiB
Rust
use crate::{Errno, Result};
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use std::mem::MaybeUninit;
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#[derive(Debug, Copy, Clone)]
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pub enum ClockId {
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Realtime,
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Monotonic,
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ProcessCPUTime,
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ThreadCPUTime,
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}
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impl ClockId {
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pub fn as_raw(&self) -> libc::clockid_t {
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match self {
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Self::Realtime => libc::CLOCK_REALTIME,
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Self::Monotonic => libc::CLOCK_MONOTONIC,
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Self::ProcessCPUTime => libc::CLOCK_PROCESS_CPUTIME_ID,
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Self::ThreadCPUTime => libc::CLOCK_THREAD_CPUTIME_ID,
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}
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}
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}
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pub fn clock_getres(clock_id: ClockId) -> Result<libc::timespec> {
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let mut timespec = MaybeUninit::<libc::timespec>::uninit();
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Errno::from_success_code(unsafe {
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libc::clock_getres(clock_id.as_raw(), timespec.as_mut_ptr())
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})?;
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Ok(unsafe { timespec.assume_init() })
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}
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pub fn clock_gettime(clock_id: ClockId) -> Result<libc::timespec> {
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let mut timespec = MaybeUninit::<libc::timespec>::uninit();
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Errno::from_success_code(unsafe {
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libc::clock_gettime(clock_id.as_raw(), timespec.as_mut_ptr())
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})?;
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Ok(unsafe { timespec.assume_init() })
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}
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