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authorValentin Popov <valentin@popov.link>2024-07-19 15:37:58 +0300
committerValentin Popov <valentin@popov.link>2024-07-19 15:37:58 +0300
commita990de90fe41456a23e58bd087d2f107d321f3a1 (patch)
tree15afc392522a9e85dc3332235e311b7d39352ea9 /vendor/rustix/src/backend/linux_raw/time/syscalls.rs
parent3d48cd3f81164bbfc1a755dc1d4a9a02f98c8ddd (diff)
downloadfparkan-a990de90fe41456a23e58bd087d2f107d321f3a1.tar.xz
fparkan-a990de90fe41456a23e58bd087d2f107d321f3a1.zip
Deleted vendor folder
Diffstat (limited to 'vendor/rustix/src/backend/linux_raw/time/syscalls.rs')
-rw-r--r--vendor/rustix/src/backend/linux_raw/time/syscalls.rs257
1 files changed, 0 insertions, 257 deletions
diff --git a/vendor/rustix/src/backend/linux_raw/time/syscalls.rs b/vendor/rustix/src/backend/linux_raw/time/syscalls.rs
deleted file mode 100644
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--- a/vendor/rustix/src/backend/linux_raw/time/syscalls.rs
+++ /dev/null
@@ -1,257 +0,0 @@
-//! linux_raw syscalls supporting `rustix::time`.
-//!
-//! # Safety
-//!
-//! See the `rustix::backend` module documentation for details.
-#![allow(unsafe_code, clippy::undocumented_unsafe_blocks)]
-
-use crate::backend::conv::{ret, ret_infallible};
-use crate::clockid::ClockId;
-use crate::io;
-use crate::timespec::Timespec;
-use core::mem::MaybeUninit;
-#[cfg(all(feature = "time", target_pointer_width = "32"))]
-use linux_raw_sys::general::itimerspec as __kernel_old_itimerspec;
-#[cfg(target_pointer_width = "32")]
-use linux_raw_sys::general::timespec as __kernel_old_timespec;
-#[cfg(feature = "time")]
-use {
- crate::backend::conv::{by_ref, ret_owned_fd},
- crate::fd::BorrowedFd,
- crate::fd::OwnedFd,
- crate::time::{Itimerspec, TimerfdClockId, TimerfdFlags, TimerfdTimerFlags},
-};
-
-// `clock_gettime` has special optimizations via the vDSO.
-#[cfg(feature = "time")]
-pub(crate) use crate::backend::vdso_wrappers::{clock_gettime, clock_gettime_dynamic};
-
-#[inline]
-pub(crate) fn clock_getres(which_clock: ClockId) -> Timespec {
- #[cfg(target_pointer_width = "32")]
- unsafe {
- let mut result = MaybeUninit::<Timespec>::uninit();
- if let Err(err) = ret(syscall!(__NR_clock_getres_time64, which_clock, &mut result)) {
- // See the comments in `rustix_clock_gettime_via_syscall` about
- // emulation.
- debug_assert_eq!(err, io::Errno::NOSYS);
- clock_getres_old(which_clock, &mut result);
- }
- result.assume_init()
- }
- #[cfg(target_pointer_width = "64")]
- unsafe {
- let mut result = MaybeUninit::<Timespec>::uninit();
- ret_infallible(syscall!(__NR_clock_getres, which_clock, &mut result));
- result.assume_init()
- }
-}
-
-#[cfg(target_pointer_width = "32")]
-unsafe fn clock_getres_old(which_clock: ClockId, result: &mut MaybeUninit<Timespec>) {
- let mut old_result = MaybeUninit::<__kernel_old_timespec>::uninit();
- ret_infallible(syscall!(__NR_clock_getres, which_clock, &mut old_result));
- let old_result = old_result.assume_init();
- result.write(Timespec {
- tv_sec: old_result.tv_sec.into(),
- tv_nsec: old_result.tv_nsec.into(),
- });
-}
-
-#[cfg(feature = "time")]
-#[inline]
-pub(crate) fn clock_settime(which_clock: ClockId, timespec: Timespec) -> io::Result<()> {
- // `clock_settime64` was introduced in Linux 5.1. The old `clock_settime`
- // syscall is not y2038-compatible on 32-bit architectures.
- #[cfg(target_pointer_width = "32")]
- unsafe {
- match ret(syscall_readonly!(
- __NR_clock_settime64,
- which_clock,
- by_ref(&timespec)
- )) {
- Err(io::Errno::NOSYS) => clock_settime_old(which_clock, timespec),
- otherwise => otherwise,
- }
- }
- #[cfg(target_pointer_width = "64")]
- unsafe {
- ret(syscall_readonly!(
- __NR_clock_settime,
- which_clock,
- by_ref(&timespec)
- ))
- }
-}
-
-#[cfg(feature = "time")]
-#[cfg(target_pointer_width = "32")]
-unsafe fn clock_settime_old(which_clock: ClockId, timespec: Timespec) -> io::Result<()> {
- let old_timespec = __kernel_old_timespec {
- tv_sec: timespec
- .tv_sec
- .try_into()
- .map_err(|_| io::Errno::OVERFLOW)?,
- tv_nsec: timespec.tv_nsec as _,
- };
- ret(syscall_readonly!(
- __NR_clock_settime,
- which_clock,
- by_ref(&old_timespec)
- ))
-}
-
-#[cfg(feature = "time")]
-#[inline]
-pub(crate) fn timerfd_create(clockid: TimerfdClockId, flags: TimerfdFlags) -> io::Result<OwnedFd> {
- unsafe { ret_owned_fd(syscall_readonly!(__NR_timerfd_create, clockid, flags)) }
-}
-
-#[cfg(feature = "time")]
-#[inline]
-pub(crate) fn timerfd_settime(
- fd: BorrowedFd<'_>,
- flags: TimerfdTimerFlags,
- new_value: &Itimerspec,
-) -> io::Result<Itimerspec> {
- let mut result = MaybeUninit::<Itimerspec>::uninit();
-
- #[cfg(target_pointer_width = "64")]
- unsafe {
- ret(syscall!(
- __NR_timerfd_settime,
- fd,
- flags,
- by_ref(new_value),
- &mut result
- ))?;
- Ok(result.assume_init())
- }
-
- #[cfg(target_pointer_width = "32")]
- unsafe {
- ret(syscall!(
- __NR_timerfd_settime64,
- fd,
- flags,
- by_ref(new_value),
- &mut result
- ))
- .or_else(|err| {
- // See the comments in `rustix_clock_gettime_via_syscall` about
- // emulation.
- if err == io::Errno::NOSYS {
- timerfd_settime_old(fd, flags, new_value, &mut result)
- } else {
- Err(err)
- }
- })?;
- Ok(result.assume_init())
- }
-}
-
-#[cfg(feature = "time")]
-#[cfg(target_pointer_width = "32")]
-unsafe fn timerfd_settime_old(
- fd: BorrowedFd<'_>,
- flags: TimerfdTimerFlags,
- new_value: &Itimerspec,
- result: &mut MaybeUninit<Itimerspec>,
-) -> io::Result<()> {
- let mut old_result = MaybeUninit::<__kernel_old_itimerspec>::uninit();
-
- // Convert `new_value` to the old `__kernel_old_itimerspec` format.
- let old_new_value = __kernel_old_itimerspec {
- it_interval: __kernel_old_timespec {
- tv_sec: new_value
- .it_interval
- .tv_sec
- .try_into()
- .map_err(|_| io::Errno::OVERFLOW)?,
- tv_nsec: new_value
- .it_interval
- .tv_nsec
- .try_into()
- .map_err(|_| io::Errno::INVAL)?,
- },
- it_value: __kernel_old_timespec {
- tv_sec: new_value
- .it_value
- .tv_sec
- .try_into()
- .map_err(|_| io::Errno::OVERFLOW)?,
- tv_nsec: new_value
- .it_value
- .tv_nsec
- .try_into()
- .map_err(|_| io::Errno::INVAL)?,
- },
- };
- ret(syscall!(
- __NR_timerfd_settime,
- fd,
- flags,
- by_ref(&old_new_value),
- &mut old_result
- ))?;
- let old_result = old_result.assume_init();
- result.write(Itimerspec {
- it_interval: Timespec {
- tv_sec: old_result.it_interval.tv_sec.into(),
- tv_nsec: old_result.it_interval.tv_nsec.into(),
- },
- it_value: Timespec {
- tv_sec: old_result.it_value.tv_sec.into(),
- tv_nsec: old_result.it_value.tv_nsec.into(),
- },
- });
- Ok(())
-}
-
-#[cfg(feature = "time")]
-#[inline]
-pub(crate) fn timerfd_gettime(fd: BorrowedFd<'_>) -> io::Result<Itimerspec> {
- let mut result = MaybeUninit::<Itimerspec>::uninit();
-
- #[cfg(target_pointer_width = "64")]
- unsafe {
- ret(syscall!(__NR_timerfd_gettime, fd, &mut result))?;
- Ok(result.assume_init())
- }
-
- #[cfg(target_pointer_width = "32")]
- unsafe {
- ret(syscall!(__NR_timerfd_gettime64, fd, &mut result)).or_else(|err| {
- // See the comments in `rustix_clock_gettime_via_syscall` about
- // emulation.
- if err == io::Errno::NOSYS {
- timerfd_gettime_old(fd, &mut result)
- } else {
- Err(err)
- }
- })?;
- Ok(result.assume_init())
- }
-}
-
-#[cfg(feature = "time")]
-#[cfg(target_pointer_width = "32")]
-unsafe fn timerfd_gettime_old(
- fd: BorrowedFd<'_>,
- result: &mut MaybeUninit<Itimerspec>,
-) -> io::Result<()> {
- let mut old_result = MaybeUninit::<__kernel_old_itimerspec>::uninit();
- ret(syscall!(__NR_timerfd_gettime, fd, &mut old_result))?;
- let old_result = old_result.assume_init();
- result.write(Itimerspec {
- it_interval: Timespec {
- tv_sec: old_result.it_interval.tv_sec.into(),
- tv_nsec: old_result.it_interval.tv_nsec.into(),
- },
- it_value: Timespec {
- tv_sec: old_result.it_value.tv_sec.into(),
- tv_nsec: old_result.it_value.tv_nsec.into(),
- },
- });
- Ok(())
-}