[−]Struct nix::poll::EventFlags
These flags define the different events that can be monitored by poll
and ppoll
Methods
impl EventFlags
pub const POLLIN: EventFlags
There is data to read.
pub const POLLPRI: EventFlags
There is some exceptional condition on the file descriptor.
Possibilities include:
- There is out-of-band data on a TCP socket (see tcp(7)).
- A pseudoterminal master in packet mode has seen a state change on the slave (see ioctl_tty(2)).
- A cgroup.events file has been modified (see cgroups(7)).
pub const POLLOUT: EventFlags
Writing is now possible, though a write larger that the
available space in a socket or pipe will still block (unless
O_NONBLOCK
is set).
pub const POLLRDNORM: EventFlags
Equivalent to POLLIN
pub const POLLWRNORM: EventFlags
Equivalent to POLLOUT
pub const POLLRDBAND: EventFlags
Priority band data can be read (generally unused on Linux).
pub const POLLWRBAND: EventFlags
Priority data may be written.
pub const POLLERR: EventFlags
Error condition (only returned in
PollFd::revents
;
ignored in PollFd::new
).
This bit is also set for a file descriptor referring to the
write end of a pipe when the read end has been closed.
pub const POLLHUP: EventFlags
Hang up (only returned in PollFd::revents
;
ignored in PollFd::new
).
Note that when reading from a channel such as a pipe or a stream
socket, this event merely indicates that the peer closed its
end of the channel. Subsequent reads from the channel will
return 0 (end of file) only after all outstanding data in the
channel has been consumed.
pub const POLLNVAL: EventFlags
Invalid request: fd
not open (only returned in
PollFd::revents
;
ignored in PollFd::new
).
pub const fn empty() -> EventFlags
Returns an empty set of flags
pub const fn all() -> EventFlags
Returns the set containing all flags.
pub const fn bits(&self) -> c_short
Returns the raw value of the flags currently stored.
pub fn from_bits(bits: c_short) -> Option<EventFlags>
Convert from underlying bit representation, unless that representation contains bits that do not correspond to a flag.
pub const fn from_bits_truncate(bits: c_short) -> EventFlags
Convert from underlying bit representation, dropping any bits that do not correspond to flags.
pub const fn is_empty(&self) -> bool
Returns true
if no flags are currently stored.
pub const fn is_all(&self) -> bool
Returns true
if all flags are currently set.
pub const fn intersects(&self, other: EventFlags) -> bool
Returns true
if there are flags common to both self
and other
.
pub const fn contains(&self, other: EventFlags) -> bool
Returns true
all of the flags in other
are contained within self
.
pub fn insert(&mut self, other: EventFlags)
Inserts the specified flags in-place.
pub fn remove(&mut self, other: EventFlags)
Removes the specified flags in-place.
pub fn toggle(&mut self, other: EventFlags)
Toggles the specified flags in-place.
pub fn set(&mut self, other: EventFlags, value: bool)
Inserts or removes the specified flags depending on the passed value.
Trait Implementations
impl Eq for EventFlags
impl PartialEq<EventFlags> for EventFlags
fn eq(&self, other: &EventFlags) -> bool
fn ne(&self, other: &EventFlags) -> bool
impl PartialOrd<EventFlags> for EventFlags
fn partial_cmp(&self, other: &EventFlags) -> Option<Ordering>
fn lt(&self, other: &EventFlags) -> bool
fn le(&self, other: &EventFlags) -> bool
fn gt(&self, other: &EventFlags) -> bool
fn ge(&self, other: &EventFlags) -> bool
impl Copy for EventFlags
impl Ord for EventFlags
fn cmp(&self, other: &EventFlags) -> Ordering
fn max(self, other: Self) -> Self
1.21.0[src]
Compares and returns the maximum of two values. Read more
fn min(self, other: Self) -> Self
1.21.0[src]
Compares and returns the minimum of two values. Read more
fn clamp(self, min: Self, max: Self) -> Self
[src]
clamp
)Restrict a value to a certain interval. Read more
impl Clone for EventFlags
fn clone(&self) -> EventFlags
fn clone_from(&mut self, source: &Self)
1.0.0[src]
Performs copy-assignment from source
. Read more
impl Extend<EventFlags> for EventFlags
fn extend<T: IntoIterator<Item = EventFlags>>(&mut self, iterator: T)
impl Hash for EventFlags
fn hash<__H: Hasher>(&self, state: &mut __H)
fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
1.3.0[src]
H: Hasher,
Feeds a slice of this type into the given [Hasher
]. Read more
impl Sub<EventFlags> for EventFlags
type Output = EventFlags
The resulting type after applying the -
operator.
fn sub(self, other: EventFlags) -> EventFlags
Returns the set difference of the two sets of flags.
impl SubAssign<EventFlags> for EventFlags
fn sub_assign(&mut self, other: EventFlags)
Disables all flags enabled in the set.
impl Not for EventFlags
type Output = EventFlags
The resulting type after applying the !
operator.
fn not(self) -> EventFlags
Returns the complement of this set of flags.
impl BitAnd<EventFlags> for EventFlags
type Output = EventFlags
The resulting type after applying the &
operator.
fn bitand(self, other: EventFlags) -> EventFlags
Returns the intersection between the two sets of flags.
impl BitOr<EventFlags> for EventFlags
type Output = EventFlags
The resulting type after applying the |
operator.
fn bitor(self, other: EventFlags) -> EventFlags
Returns the union of the two sets of flags.
impl BitXor<EventFlags> for EventFlags
type Output = EventFlags
The resulting type after applying the ^
operator.
fn bitxor(self, other: EventFlags) -> EventFlags
Returns the left flags, but with all the right flags toggled.
impl BitAndAssign<EventFlags> for EventFlags
fn bitand_assign(&mut self, other: EventFlags)
Disables all flags disabled in the set.
impl BitOrAssign<EventFlags> for EventFlags
fn bitor_assign(&mut self, other: EventFlags)
Adds the set of flags.
impl BitXorAssign<EventFlags> for EventFlags
fn bitxor_assign(&mut self, other: EventFlags)
Toggles the set of flags.
impl Debug for EventFlags
impl FromIterator<EventFlags> for EventFlags
fn from_iter<T: IntoIterator<Item = EventFlags>>(iterator: T) -> EventFlags
impl Octal for EventFlags
impl Binary for EventFlags
impl LowerHex for EventFlags
impl UpperHex for EventFlags
Auto Trait Implementations
impl Sync for EventFlags
impl Send for EventFlags
impl Unpin for EventFlags
impl UnwindSafe for EventFlags
impl RefUnwindSafe for EventFlags
Blanket Implementations
impl<T> ToOwned for T where
T: Clone,
[src]
T: Clone,
type Owned = T
The resulting type after obtaining ownership.
fn to_owned(&self) -> T
[src]
fn clone_into(&self, target: &mut T)
[src]
impl<T, U> Into<U> for T where
U: From<T>,
[src]
U: From<T>,
impl<T> From<T> for T
[src]
impl<T, U> TryFrom<U> for T where
U: Into<T>,
[src]
U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
[src]
impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
[src]
U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
[src]
impl<T> BorrowMut<T> for T where
T: ?Sized,
[src]
T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
[src]
impl<T> Borrow<T> for T where
T: ?Sized,
[src]
T: ?Sized,
impl<T> Any for T where
T: 'static + ?Sized,
[src]
T: 'static + ?Sized,