rustix/backend/libc/io/
types.rs

1use crate::backend::c;
2use bitflags::bitflags;
3
4bitflags! {
5    /// `FD_*` constants for use with [`fcntl_getfd`] and [`fcntl_setfd`].
6    ///
7    /// [`fcntl_getfd`]: crate::io::fcntl_getfd
8    /// [`fcntl_setfd`]: crate::io::fcntl_setfd
9    #[repr(transparent)]
10    #[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)]
11    pub struct FdFlags: u32 {
12        /// `FD_CLOEXEC`
13        const CLOEXEC = bitcast!(c::FD_CLOEXEC);
14
15        /// <https://docs.rs/bitflags/*/bitflags/#externally-defined-flags>
16        const _ = !0;
17    }
18}
19
20#[cfg(linux_kernel)]
21bitflags! {
22    /// `RWF_*` constants for use with [`preadv2`] and [`pwritev2`].
23    ///
24    /// [`preadv2`]: crate::io::preadv2
25    /// [`pwritev2`]: crate::io::pwritev
26    #[repr(transparent)]
27    #[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)]
28    pub struct ReadWriteFlags: u32 {
29        /// `RWF_DSYNC` (since Linux 4.7)
30        const DSYNC = linux_raw_sys::general::RWF_DSYNC;
31        /// `RWF_HIPRI` (since Linux 4.6)
32        const HIPRI = linux_raw_sys::general::RWF_HIPRI;
33        /// `RWF_SYNC` (since Linux 4.7)
34        const SYNC = linux_raw_sys::general::RWF_SYNC;
35        /// `RWF_NOWAIT` (since Linux 4.14)
36        const NOWAIT = linux_raw_sys::general::RWF_NOWAIT;
37        /// `RWF_APPEND` (since Linux 4.16)
38        const APPEND = linux_raw_sys::general::RWF_APPEND;
39
40        /// <https://docs.rs/bitflags/*/bitflags/#externally-defined-flags>
41        const _ = !0;
42    }
43}
44
45#[cfg(not(target_os = "wasi"))]
46bitflags! {
47    /// `O_*` constants for use with [`dup2`].
48    ///
49    /// [`dup2`]: crate::io::dup2
50    #[repr(transparent)]
51    #[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)]
52    pub struct DupFlags: u32 {
53        /// `O_CLOEXEC`
54        #[cfg(not(any(
55            apple,
56            target_os = "aix",
57            target_os = "android",
58            target_os = "redox",
59        )))] // Android 5.0 has dup3, but libc doesn't have bindings
60        const CLOEXEC = bitcast!(c::O_CLOEXEC);
61
62        /// <https://docs.rs/bitflags/*/bitflags/#externally-defined-flags>
63        const _ = !0;
64    }
65}
rustix/backend/libc/io/types.rs

rustix/backend/libc/io/
types.rs
