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//! The Unix `ioctl` function is effectively lots of different functions
//! hidden behind a single dynamic dispatch interface. In order to provide
//! a type-safe API, rustix makes them all separate functions so that they
//! can have dedicated static type signatures.
use crate::{imp, io};
use imp::fd::AsFd;
/// `ioctl(fd, TIOCEXCL)`—Enables exclusive mode on a terminal.
///
/// # References
/// - [Linux]
///
/// [Linux]: https://man7.org/linux/man-pages/man4/tty_ioctl.4.html
#[cfg(not(any(windows, target_os = "redox", target_os = "wasi")))]
#[inline]
#[doc(alias = "TIOCEXCL")]
pub fn ioctl_tiocexcl<Fd: AsFd>(fd: Fd) -> io::Result<()> {
imp::io::syscalls::ioctl_tiocexcl(fd.as_fd())
}
/// `ioctl(fd, TIOCNXCL)`—Disables exclusive mode on a terminal.
///
/// # References
/// - [Linux]
///
/// [Linux]: https://man7.org/linux/man-pages/man4/tty_ioctl.4.html
#[cfg(not(any(windows, target_os = "redox", target_os = "wasi")))]
#[inline]
#[doc(alias = "TIOCNXCL")]
pub fn ioctl_tiocnxcl<Fd: AsFd>(fd: Fd) -> io::Result<()> {
imp::io::syscalls::ioctl_tiocnxcl(fd.as_fd())
}
/// `ioctl(fd, FIOCLEX)`—Set the close-on-exec flag.
///
/// Also known as `fcntl(fd, F_SETFD, FD_CLOEXEC)`.
///
/// # References
/// - [Linux]
/// - [Winsock2]
///
/// [Linux]: https://man7.org/linux/man-pages/man2/ioctl.2.html
/// [Winsock2]: https://docs.microsoft.com/en-us/windows/win32/api/winsock2/nf-winsock2-ioctlsocket
#[cfg(any(target_os = "ios", target_os = "macos"))]
#[inline]
#[doc(alias = "FIOCLEX")]
#[doc(alias = "FD_CLOEXEC")]
pub fn ioctl_fioclex<Fd: AsFd>(fd: Fd) -> io::Result<()> {
imp::io::syscalls::ioctl_fioclex(fd.as_fd())
}
/// `ioctl(fd, FIONBIO, &value)`—Enables or disables non-blocking mode.
///
/// # References
/// - [Linux]
/// - [Winsock2]
///
/// [Linux]: https://man7.org/linux/man-pages/man2/ioctl.2.html
/// [Winsock2]: https://docs.microsoft.com/en-us/windows/win32/winsock/winsock-ioctls#unix-ioctl-codes
#[inline]
#[doc(alias = "FIONBIO")]
pub fn ioctl_fionbio<Fd: AsFd>(fd: Fd, value: bool) -> io::Result<()> {
imp::io::syscalls::ioctl_fionbio(fd.as_fd(), value)
}
/// `ioctl(fd, FIONREAD)`—Returns the number of bytes ready to be read.
///
/// The result of this function gets silently coerced into a C `int`
/// by the OS, so it may contain a wrapped value.
///
/// # References
/// - [Linux]
/// - [Winsock2]
///
/// [Linux]: https://man7.org/linux/man-pages/man2/ioctl_tty.2.html
/// [Winsock2]: https://docs.microsoft.com/en-us/windows/win32/winsock/winsock-ioctls#unix-ioctl-codes
#[cfg(not(target_os = "redox"))]
#[inline]
#[doc(alias = "FIONREAD")]
pub fn ioctl_fionread<Fd: AsFd>(fd: Fd) -> io::Result<u64> {
imp::io::syscalls::ioctl_fionread(fd.as_fd())
}
/// `ioctl(fd, BLKSSZGET)`—Returns the logical block size of a block device.
#[cfg(any(target_os = "android", target_os = "linux"))]
#[inline]
#[doc(alias = "BLKSSZGET")]
pub fn ioctl_blksszget<Fd: AsFd>(fd: Fd) -> io::Result<u32> {
imp::io::syscalls::ioctl_blksszget(fd.as_fd())
}
/// `ioctl(fd, BLKPBSZGET)`—Returns the physical block size of a block device.
#[cfg(any(target_os = "android", target_os = "linux"))]
#[inline]
#[doc(alias = "BLKPBSZGET")]
pub fn ioctl_blkpbszget<Fd: AsFd>(fd: Fd) -> io::Result<u32> {
imp::io::syscalls::ioctl_blkpbszget(fd.as_fd())
}
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