aboutsummaryrefslogtreecommitdiff
path: root/vendor/rustix/src/event/port.rs
diff options
context:
space:
mode:
Diffstat (limited to 'vendor/rustix/src/event/port.rs')
-rw-r--r--vendor/rustix/src/event/port.rs151
1 files changed, 151 insertions, 0 deletions
diff --git a/vendor/rustix/src/event/port.rs b/vendor/rustix/src/event/port.rs
new file mode 100644
index 0000000..39fe5ac
--- /dev/null
+++ b/vendor/rustix/src/event/port.rs
@@ -0,0 +1,151 @@
+//! Solaris/illumos event ports.
+
+use crate::backend::c;
+use crate::backend::event::syscalls;
+use crate::fd::{AsFd, AsRawFd, OwnedFd};
+use crate::io;
+
+use super::PollFlags;
+
+use core::time::Duration;
+
+/// The structure representing a port event.
+#[repr(transparent)]
+pub struct Event(pub(crate) c::port_event);
+
+impl Event {
+ /// Get the events associated with this event.
+ pub fn events(&self) -> i32 {
+ self.0.portev_events
+ }
+
+ /// Get the event source associated with this event.
+ pub fn object(&self) -> usize {
+ self.0.portev_object
+ }
+
+ /// Get the userdata associated with this event.
+ pub fn userdata(&self) -> *mut c::c_void {
+ self.0.portev_user
+ }
+}
+
+/// `port_create()`—Creates a new port.
+///
+/// # References
+/// - [OpenSolaris]
+/// - [illumos]
+///
+/// [OpenSolaris]: https://www.unix.com/man-page/opensolaris/3C/port_create/
+/// [illumos]: https://illumos.org/man/3C/port_create
+pub fn port_create() -> io::Result<OwnedFd> {
+ syscalls::port_create()
+}
+
+/// `port_associate(_, PORT_SOURCE_FD, _, _, _)`—Associates a file descriptor
+/// with a port.
+///
+/// # Safety
+///
+/// Any `object`s passed into the `port` must be valid for the lifetime of the
+/// `port`. Logically, `port` keeps a borrowed reference to the `object` until
+/// it is removed via `port_dissociate_fd`.
+///
+/// # References
+/// - [OpenSolaris]
+/// - [illumos]
+///
+/// [OpenSolaris]: https://www.unix.com/man-page/opensolaris/3C/port_associate/
+/// [illumos]: https://illumos.org/man/3C/port_associate
+pub unsafe fn port_associate_fd(
+ port: impl AsFd,
+ object: impl AsRawFd,
+ events: PollFlags,
+ userdata: *mut c::c_void,
+) -> io::Result<()> {
+ syscalls::port_associate(
+ port.as_fd(),
+ c::PORT_SOURCE_FD,
+ object.as_raw_fd() as _,
+ events.bits() as _,
+ userdata.cast(),
+ )
+}
+
+/// `port_dissociate(_, PORT_SOURCE_FD, _)`—Dissociates a file descriptor
+/// from a port.
+///
+/// # Safety
+///
+/// The file descriptor passed into this function must have been previously
+/// associated with the port via [`port_associate_fd`].
+///
+/// # References
+/// - [OpenSolaris]
+/// - [illumos]
+///
+/// [OpenSolaris]: https://www.unix.com/man-page/opensolaris/3C/port_dissociate
+/// [illumos]: https://illumos.org/man/3C/port_dissociate
+pub unsafe fn port_dissociate_fd(port: impl AsFd, object: impl AsRawFd) -> io::Result<()> {
+ syscalls::port_dissociate(port.as_fd(), c::PORT_SOURCE_FD, object.as_raw_fd() as _)
+}
+
+/// `port_get(port, timeout)`—Gets an event from a port.
+///
+/// # References
+/// - [OpenSolaris]
+/// - [illumos]
+///
+/// [OpenSolaris]: https://www.unix.com/man-page/opensolaris/3C/port_get/
+/// [illumos]: https://illumos.org/man/3C/port_get
+pub fn port_get(port: impl AsFd, timeout: Option<Duration>) -> io::Result<Event> {
+ let mut timeout = timeout.map(|timeout| c::timespec {
+ tv_sec: timeout.as_secs().try_into().unwrap(),
+ tv_nsec: timeout.subsec_nanos() as _,
+ });
+
+ syscalls::port_get(port.as_fd(), timeout.as_mut())
+}
+
+/// `port_getn(port, events, min_events, timeout)`—Gets multiple events from a
+/// port.
+///
+/// # References
+/// - [OpenSolaris]
+/// - [illumos]
+///
+/// [OpenSolaris]: https://www.unix.com/man-page/opensolaris/3C/port_getn/
+/// [illumos]: https://illumos.org/man/3C/port_getn
+#[cfg(feature = "alloc")]
+pub fn port_getn(
+ port: impl AsFd,
+ events: &mut Vec<Event>,
+ min_events: usize,
+ timeout: Option<Duration>,
+) -> io::Result<()> {
+ events.clear();
+
+ let mut timeout = timeout.map(|timeout| c::timespec {
+ tv_sec: timeout.as_secs().try_into().unwrap(),
+ tv_nsec: timeout.subsec_nanos() as _,
+ });
+
+ syscalls::port_getn(
+ port.as_fd(),
+ timeout.as_mut(),
+ events,
+ min_events.try_into().unwrap(),
+ )
+}
+
+/// `port_send(port, events, userdata)`—Sends an event to a port.
+///
+/// # References
+/// - [OpenSolaris]
+/// - [illumos]
+///
+/// [OpenSolaris]: https://www.unix.com/man-page/opensolaris/3C/port_send/
+/// [illumos]: https://illumos.org/man/3C/port_send
+pub fn port_send(port: impl AsFd, events: i32, userdata: *mut c::c_void) -> io::Result<()> {
+ syscalls::port_send(port.as_fd(), events, userdata.cast())
+}