diff options
Diffstat (limited to 'vendor/rustix/src/fs/fcntl.rs')
| -rw-r--r-- | vendor/rustix/src/fs/fcntl.rs | 72 |
1 files changed, 14 insertions, 58 deletions
diff --git a/vendor/rustix/src/fs/fcntl.rs b/vendor/rustix/src/fs/fcntl.rs index 7f89873b5..80ac858c0 100644 --- a/vendor/rustix/src/fs/fcntl.rs +++ b/vendor/rustix/src/fs/fcntl.rs @@ -3,38 +3,16 @@ //! a type-safe API, rustix makes them all separate functions so that they //! can have dedicated static type signatures. -use crate::imp; -use crate::io::{self, OwnedFd}; -use imp::fd::{AsFd, RawFd}; -use imp::fs::types::{FdFlags, OFlags}; +use crate::{backend, io}; +use backend::fd::AsFd; +use backend::fs::types::OFlags; -/// `fcntl(fd, F_GETFD)`—Returns a file descriptor's flags. -/// -/// # References -/// - [POSIX] -/// - [Linux] -/// -/// [POSIX]: https://pubs.opengroup.org/onlinepubs/9699919799/functions/fcntl.html -/// [Linux]: https://man7.org/linux/man-pages/man2/fcntl.2.html -#[inline] -#[doc(alias = "F_GETFD")] -pub fn fcntl_getfd<Fd: AsFd>(fd: Fd) -> io::Result<FdFlags> { - imp::fs::syscalls::fcntl_getfd(fd.as_fd()) -} - -/// `fcntl(fd, F_SETFD, flags)`—Sets a file descriptor's flags. -/// -/// # References -/// - [POSIX] -/// - [Linux] -/// -/// [POSIX]: https://pubs.opengroup.org/onlinepubs/9699919799/functions/fcntl.html -/// [Linux]: https://man7.org/linux/man-pages/man2/fcntl.2.html -#[inline] -#[doc(alias = "F_SETFD")] -pub fn fcntl_setfd<Fd: AsFd>(fd: Fd, flags: FdFlags) -> io::Result<()> { - imp::fs::syscalls::fcntl_setfd(fd.as_fd(), flags) -} +// These `fcntl` functions like in the `io` module because they're not specific +// to files, directories, or memfd objects. We re-export them here in the `fs` +// module because the other the `fcntl` functions are here. +#[cfg(not(target_os = "wasi"))] +pub use crate::io::fcntl_dupfd_cloexec; +pub use crate::io::{fcntl_getfd, fcntl_setfd}; /// `fcntl(fd, F_GETFL)`—Returns a file descriptor's access mode and status. /// @@ -47,7 +25,7 @@ pub fn fcntl_setfd<Fd: AsFd>(fd: Fd, flags: FdFlags) -> io::Result<()> { #[inline] #[doc(alias = "F_GETFL")] pub fn fcntl_getfl<Fd: AsFd>(fd: Fd) -> io::Result<OFlags> { - imp::fs::syscalls::fcntl_getfl(fd.as_fd()) + backend::fs::syscalls::fcntl_getfl(fd.as_fd()) } /// `fcntl(fd, F_SETFL, flags)`—Sets a file descriptor's status. @@ -61,7 +39,7 @@ pub fn fcntl_getfl<Fd: AsFd>(fd: Fd) -> io::Result<OFlags> { #[inline] #[doc(alias = "F_SETFL")] pub fn fcntl_setfl<Fd: AsFd>(fd: Fd, flags: OFlags) -> io::Result<()> { - imp::fs::syscalls::fcntl_setfl(fd.as_fd(), flags) + backend::fs::syscalls::fcntl_setfl(fd.as_fd(), flags) } /// `fcntl(fd, F_GET_SEALS)` @@ -79,7 +57,7 @@ pub fn fcntl_setfl<Fd: AsFd>(fd: Fd, flags: OFlags) -> io::Result<()> { #[inline] #[doc(alias = "F_GET_SEALS")] pub fn fcntl_get_seals<Fd: AsFd>(fd: Fd) -> io::Result<SealFlags> { - imp::fs::syscalls::fcntl_get_seals(fd.as_fd()) + backend::fs::syscalls::fcntl_get_seals(fd.as_fd()) } #[cfg(any( @@ -88,7 +66,7 @@ pub fn fcntl_get_seals<Fd: AsFd>(fd: Fd) -> io::Result<SealFlags> { target_os = "fuchsia", target_os = "linux", ))] -pub use imp::fs::types::SealFlags; +pub use backend::fs::types::SealFlags; /// `fcntl(fd, F_ADD_SEALS)` /// @@ -105,27 +83,5 @@ pub use imp::fs::types::SealFlags; #[inline] #[doc(alias = "F_ADD_SEALS")] pub fn fcntl_add_seals<Fd: AsFd>(fd: Fd, seals: SealFlags) -> io::Result<()> { - imp::fs::syscalls::fcntl_add_seals(fd.as_fd(), seals) -} - -/// `fcntl(fd, F_DUPFD_CLOEXEC)`—Creates a new `OwnedFd` instance, with value -/// at least `min`, that has `O_CLOEXEC` set and that shares the same -/// underlying [file description] as `fd`. -/// -/// POSIX guarantees that `F_DUPFD_CLOEXEC` will use the lowest unused file -/// descriptor which is at least `min`, however it is not safe in general to -/// rely on this, as file descriptors may be unexpectedly allocated on other -/// threads or in libraries. -/// -/// # References -/// - [POSIX] -/// - [Linux] -/// -/// [POSIX]: https://pubs.opengroup.org/onlinepubs/9699919799/functions/fcntl.html -/// [Linux]: https://man7.org/linux/man-pages/man2/fcntl.2.html -#[cfg(not(target_os = "wasi"))] -#[inline] -#[doc(alias = "F_DUPFD_CLOEXEC")] -pub fn fcntl_dupfd_cloexec<Fd: AsFd>(fd: Fd, min: RawFd) -> io::Result<OwnedFd> { - imp::fs::syscalls::fcntl_dupfd_cloexec(fd.as_fd(), min) + backend::fs::syscalls::fcntl_add_seals(fd.as_fd(), seals) } |