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author | Valentin Popov <valentin@popov.link> | 2024-07-19 15:37:58 +0300 |
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committer | Valentin Popov <valentin@popov.link> | 2024-07-19 15:37:58 +0300 |
commit | a990de90fe41456a23e58bd087d2f107d321f3a1 (patch) | |
tree | 15afc392522a9e85dc3332235e311b7d39352ea9 /vendor/rustix/src/backend/linux_raw/pipe | |
parent | 3d48cd3f81164bbfc1a755dc1d4a9a02f98c8ddd (diff) | |
download | fparkan-a990de90fe41456a23e58bd087d2f107d321f3a1.tar.xz fparkan-a990de90fe41456a23e58bd087d2f107d321f3a1.zip |
Deleted vendor folder
Diffstat (limited to 'vendor/rustix/src/backend/linux_raw/pipe')
-rw-r--r-- | vendor/rustix/src/backend/linux_raw/pipe/mod.rs | 2 | ||||
-rw-r--r-- | vendor/rustix/src/backend/linux_raw/pipe/syscalls.rs | 135 | ||||
-rw-r--r-- | vendor/rustix/src/backend/linux_raw/pipe/types.rs | 80 |
3 files changed, 0 insertions, 217 deletions
diff --git a/vendor/rustix/src/backend/linux_raw/pipe/mod.rs b/vendor/rustix/src/backend/linux_raw/pipe/mod.rs deleted file mode 100644 index 1e0181a..0000000 --- a/vendor/rustix/src/backend/linux_raw/pipe/mod.rs +++ /dev/null @@ -1,2 +0,0 @@ -pub(crate) mod syscalls; -pub(crate) mod types; diff --git a/vendor/rustix/src/backend/linux_raw/pipe/syscalls.rs b/vendor/rustix/src/backend/linux_raw/pipe/syscalls.rs deleted file mode 100644 index ec3e459..0000000 --- a/vendor/rustix/src/backend/linux_raw/pipe/syscalls.rs +++ /dev/null @@ -1,135 +0,0 @@ -//! linux_raw syscalls supporting `rustix::pipe`. -//! -//! # Safety -//! -//! See the `rustix::backend` module documentation for details. -#![allow(unsafe_code, clippy::undocumented_unsafe_blocks)] - -use crate::backend::conv::{c_int, c_uint, opt_mut, pass_usize, ret, ret_usize, slice}; -use crate::backend::{c, MAX_IOV}; -use crate::fd::{BorrowedFd, OwnedFd}; -use crate::io; -use crate::pipe::{IoSliceRaw, PipeFlags, SpliceFlags}; -use core::cmp; -use core::mem::MaybeUninit; -use linux_raw_sys::general::{F_GETPIPE_SZ, F_SETPIPE_SZ}; - -#[inline] -pub(crate) fn pipe() -> io::Result<(OwnedFd, OwnedFd)> { - // aarch64 and risc64 omit `__NR_pipe`. On mips, `__NR_pipe` uses a special - // calling convention, but using it is not worth complicating our syscall - // wrapping infrastructure at this time. - #[cfg(any( - target_arch = "aarch64", - target_arch = "mips", - target_arch = "mips32r6", - target_arch = "mips64", - target_arch = "mips64r6", - target_arch = "riscv64", - ))] - { - pipe_with(PipeFlags::empty()) - } - #[cfg(not(any( - target_arch = "aarch64", - target_arch = "mips", - target_arch = "mips32r6", - target_arch = "mips64", - target_arch = "mips64r6", - target_arch = "riscv64", - )))] - unsafe { - let mut result = MaybeUninit::<[OwnedFd; 2]>::uninit(); - ret(syscall!(__NR_pipe, &mut result))?; - let [p0, p1] = result.assume_init(); - Ok((p0, p1)) - } -} - -#[inline] -pub(crate) fn pipe_with(flags: PipeFlags) -> io::Result<(OwnedFd, OwnedFd)> { - unsafe { - let mut result = MaybeUninit::<[OwnedFd; 2]>::uninit(); - ret(syscall!(__NR_pipe2, &mut result, flags))?; - let [p0, p1] = result.assume_init(); - Ok((p0, p1)) - } -} - -#[inline] -pub fn splice( - fd_in: BorrowedFd<'_>, - off_in: Option<&mut u64>, - fd_out: BorrowedFd<'_>, - off_out: Option<&mut u64>, - len: usize, - flags: SpliceFlags, -) -> io::Result<usize> { - unsafe { - ret_usize(syscall!( - __NR_splice, - fd_in, - opt_mut(off_in), - fd_out, - opt_mut(off_out), - pass_usize(len), - flags - )) - } -} - -#[inline] -pub unsafe fn vmsplice( - fd: BorrowedFd<'_>, - bufs: &[IoSliceRaw<'_>], - flags: SpliceFlags, -) -> io::Result<usize> { - let (bufs_addr, bufs_len) = slice(&bufs[..cmp::min(bufs.len(), MAX_IOV)]); - ret_usize(syscall!(__NR_vmsplice, fd, bufs_addr, bufs_len, flags)) -} - -#[inline] -pub fn tee( - fd_in: BorrowedFd<'_>, - fd_out: BorrowedFd<'_>, - len: usize, - flags: SpliceFlags, -) -> io::Result<usize> { - unsafe { ret_usize(syscall!(__NR_tee, fd_in, fd_out, pass_usize(len), flags)) } -} - -#[inline] -pub(crate) fn fcntl_getpipe_sz(fd: BorrowedFd<'_>) -> io::Result<usize> { - #[cfg(target_pointer_width = "32")] - unsafe { - ret_usize(syscall_readonly!(__NR_fcntl64, fd, c_uint(F_GETPIPE_SZ))) - } - #[cfg(target_pointer_width = "64")] - unsafe { - ret_usize(syscall_readonly!(__NR_fcntl, fd, c_uint(F_GETPIPE_SZ))) - } -} - -#[inline] -pub(crate) fn fcntl_setpipe_sz(fd: BorrowedFd<'_>, size: usize) -> io::Result<()> { - let size: c::c_int = size.try_into().map_err(|_| io::Errno::PERM)?; - - #[cfg(target_pointer_width = "32")] - unsafe { - ret(syscall_readonly!( - __NR_fcntl64, - fd, - c_uint(F_SETPIPE_SZ), - c_int(size) - )) - } - #[cfg(target_pointer_width = "64")] - unsafe { - ret(syscall_readonly!( - __NR_fcntl, - fd, - c_uint(F_SETPIPE_SZ), - c_int(size) - )) - } -} diff --git a/vendor/rustix/src/backend/linux_raw/pipe/types.rs b/vendor/rustix/src/backend/linux_raw/pipe/types.rs deleted file mode 100644 index 2d1ed9a..0000000 --- a/vendor/rustix/src/backend/linux_raw/pipe/types.rs +++ /dev/null @@ -1,80 +0,0 @@ -use crate::backend::c; -use bitflags::bitflags; -use core::marker::PhantomData; - -bitflags! { - /// `O_*` constants for use with [`pipe_with`]. - /// - /// [`pipe_with`]: crate::pipe::pipe_with - #[repr(transparent)] - #[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)] - pub struct PipeFlags: c::c_uint { - /// `O_CLOEXEC` - const CLOEXEC = linux_raw_sys::general::O_CLOEXEC; - /// `O_DIRECT` - const DIRECT = linux_raw_sys::general::O_DIRECT; - /// `O_NONBLOCK` - const NONBLOCK = linux_raw_sys::general::O_NONBLOCK; - - /// <https://docs.rs/bitflags/*/bitflags/#externally-defined-flags> - const _ = !0; - } -} - -bitflags! { - /// `SPLICE_F_*` constants for use with [`splice`], [`vmsplice`], and - /// [`tee`]. - #[repr(transparent)] - #[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)] - pub struct SpliceFlags: c::c_uint { - /// `SPLICE_F_MOVE` - const MOVE = linux_raw_sys::general::SPLICE_F_MOVE; - /// `SPLICE_F_NONBLOCK` - const NONBLOCK = linux_raw_sys::general::SPLICE_F_NONBLOCK; - /// `SPLICE_F_MORE` - const MORE = linux_raw_sys::general::SPLICE_F_MORE; - /// `SPLICE_F_GIFT` - const GIFT = linux_raw_sys::general::SPLICE_F_GIFT; - - /// <https://docs.rs/bitflags/*/bitflags/#externally-defined-flags> - const _ = !0; - } -} - -/// A buffer type for use with [`vmsplice`]. -/// -/// It is guaranteed to be ABI compatible with the iovec type on Unix platforms -/// and `WSABUF` on Windows. Unlike `IoSlice` and `IoSliceMut` it is -/// semantically like a raw pointer, and therefore can be shared or mutated as -/// needed. -/// -/// [`vmsplice`]: crate::pipe::vmsplice -#[repr(transparent)] -pub struct IoSliceRaw<'a> { - _buf: c::iovec, - _lifetime: PhantomData<&'a ()>, -} - -impl<'a> IoSliceRaw<'a> { - /// Creates a new `IoSlice` wrapping a byte slice. - pub fn from_slice(buf: &'a [u8]) -> Self { - IoSliceRaw { - _buf: c::iovec { - iov_base: (buf.as_ptr() as *mut u8).cast::<c::c_void>(), - iov_len: buf.len() as _, - }, - _lifetime: PhantomData, - } - } - - /// Creates a new `IoSlice` wrapping a mutable byte slice. - pub fn from_slice_mut(buf: &'a mut [u8]) -> Self { - IoSliceRaw { - _buf: c::iovec { - iov_base: buf.as_mut_ptr().cast::<c::c_void>(), - iov_len: buf.len() as _, - }, - _lifetime: PhantomData, - } - } -} |