Enum otter_nodejs_tests::otter_support::crates::nix::sys::socket::ControlMessage
[−]#[non_exhaustive]
pub enum ControlMessage<'a> {
ScmRights(&'a [i32]),
ScmCredentials(&'a UnixCredentials),
AlgSetIv(&'a [u8]),
AlgSetOp(&'a i32),
AlgSetAeadAssoclen(&'a u32),
UdpGsoSegments(&'a u16),
Ipv4PacketInfo(&'a in_pktinfo),
Ipv6PacketInfo(&'a in6_pktinfo),
RxqOvfl(&'a u32),
TxTime(&'a u64),
}
Expand description
A type-safe zero-copy wrapper around a single control message, as used wih
sendmsg
. More types may be added to this enum; do not
exhaustively pattern-match it.
Variants (Non-exhaustive)
This enum is marked as non-exhaustive
ScmRights(&'a [i32])
A message of type SCM_RIGHTS
, containing an array of file
descriptors passed between processes.
See the description in the “Ancillary messages” section of the unix(7) man page.
Using multiple ScmRights
messages for a single sendmsg
call isn’t
recommended since it causes platform-dependent behaviour: It might
swallow all but the first ScmRights
message or fail with EINVAL
.
Instead, you can put all fds to be passed into a single ScmRights
message.
ScmCredentials(&'a UnixCredentials)
A message of type SCM_CREDENTIALS
, containing the pid, uid and gid of
a process connected to the socket.
This is similar to the socket option SO_PEERCRED
, but requires a
process to explicitly send its credentials. A process running as root is
allowed to specify any credentials, while credentials sent by other
processes are verified by the kernel.
For further information, please refer to the
unix(7)
man page.
AlgSetIv(&'a [u8])
Set IV for AF_ALG
crypto API.
For further information, please refer to the
documentation
AlgSetOp(&'a i32)
Set crypto operation for AF_ALG
crypto API. It may be one of
ALG_OP_ENCRYPT
or ALG_OP_DECRYPT
For further information, please refer to the
documentation
AlgSetAeadAssoclen(&'a u32)
Set the length of associated authentication data (AAD) (applicable only to AEAD algorithms)
for AF_ALG
crypto API.
For further information, please refer to the
documentation
UdpGsoSegments(&'a u16)
UDP GSO makes it possible for applications to generate network packets for a virtual MTU much greater than the real one. The length of the send data no longer matches the expected length on the wire. The size of the datagram payload as it should appear on the wire may be passed through this control message. Send buffer should consist of multiple fixed-size wire payloads following one by one, and the last, possibly smaller one.
Ipv4PacketInfo(&'a in_pktinfo)
Configure the sending addressing and interface for v4
For further information, please refer to the
ip(7)
man page.
Ipv6PacketInfo(&'a in6_pktinfo)
Configure the sending addressing and interface for v6
For further information, please refer to the
ipv6(7)
man page.
RxqOvfl(&'a u32)
SO_RXQ_OVFL indicates that an unsigned 32 bit value ancilliary msg (cmsg) should be attached to recieved skbs indicating the number of packets dropped by the socket between the last recieved packet and this received packet.
TxTime(&'a u64)
Configure the transmission time of packets.
For further information, please refer to the
tc-etf(8)
man
page.
Trait Implementations
impl<'a> Clone for ControlMessage<'a>
impl<'a> Clone for ControlMessage<'a>
fn clone(&self) -> ControlMessage<'a>
fn clone(&self) -> ControlMessage<'a>
Returns a copy of the value. Read more
1.0.0 · sourcefn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source
. Read more
impl<'a> Debug for ControlMessage<'a>
impl<'a> Debug for ControlMessage<'a>
impl<'a> PartialEq<ControlMessage<'a>> for ControlMessage<'a>
impl<'a> PartialEq<ControlMessage<'a>> for ControlMessage<'a>
fn eq(&self, other: &ControlMessage<'a>) -> bool
fn eq(&self, other: &ControlMessage<'a>) -> bool
This method tests for self
and other
values to be equal, and is used
by ==
. Read more
fn ne(&self, other: &ControlMessage<'a>) -> bool
fn ne(&self, other: &ControlMessage<'a>) -> bool
This method tests for !=
.
impl<'a> Copy for ControlMessage<'a>
impl<'a> Eq for ControlMessage<'a>
impl<'a> StructuralEq for ControlMessage<'a>
impl<'a> StructuralPartialEq for ControlMessage<'a>
Auto Trait Implementations
impl<'a> RefUnwindSafe for ControlMessage<'a>
impl<'a> Send for ControlMessage<'a>
impl<'a> Sync for ControlMessage<'a>
impl<'a> Unpin for ControlMessage<'a>
impl<'a> UnwindSafe for ControlMessage<'a>
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
impl<T> Downcast for T where
T: Any,
impl<T> Downcast for T where
T: Any,
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W: Write + ?Sized, impl<R> Read for Box<R, Global> where
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F: Future + Unpin + ?Sized,
A: Allocator + 'static, type Output = <F as Future>::Output;impl<I, A> Iterator for Box<I, A> where
I: Iterator + ?Sized,
A: Allocator, type Item = <I as Iterator>::Item;
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A: Allocator, type Item = <I as Iterator>::Item;
Convert Box<dyn Trait>
(where Trait: Downcast
) to Box<dyn Any>
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can
then be further downcast
into Box<ConcreteType>
where ConcreteType
implements Trait
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fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
Convert Rc<Trait>
(where Trait: Downcast
) to Rc<Any>
. Rc<Any>
can then be
further downcast
into Rc<ConcreteType>
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. Read more
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fn as_any(&self) -> &(dyn Any + 'static)
Convert &Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &Any
’s vtable from &Trait
’s. Read more
fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
Convert &mut Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &mut Any
’s vtable from &mut Trait
’s. Read more
impl<A> DynCastExt for A
impl<A> DynCastExt for A
fn dyn_cast<T>(
self
) -> Result<<A as DynCastExtHelper<T>>::Target, <A as DynCastExtHelper<T>>::Source> where
A: DynCastExtHelper<T>,
T: ?Sized,
fn dyn_cast<T>(
self
) -> Result<<A as DynCastExtHelper<T>>::Target, <A as DynCastExtHelper<T>>::Source> where
A: DynCastExtHelper<T>,
T: ?Sized,
Use this to cast from one trait object type to another. Read more
fn dyn_upcast<T>(self) -> <A as DynCastExtAdvHelper<T, T>>::Target where
A: DynCastExtAdvHelper<T, T, Source = <A as DynCastExtAdvHelper<T, T>>::Target>,
T: ?Sized,
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A: DynCastExtAdvHelper<T, T, Source = <A as DynCastExtAdvHelper<T, T>>::Target>,
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Use this to upcast a trait to one of its supertraits. Read more
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self
) -> Result<<A as DynCastExtAdvHelper<F, T>>::Target, <A as DynCastExtAdvHelper<F, T>>::Source> where
A: DynCastExtAdvHelper<F, T>,
F: ?Sized,
T: ?Sized,
fn dyn_cast_adv<F, T>(
self
) -> Result<<A as DynCastExtAdvHelper<F, T>>::Target, <A as DynCastExtAdvHelper<F, T>>::Source> where
A: DynCastExtAdvHelper<F, T>,
F: ?Sized,
T: ?Sized,
fn dyn_cast_with_config<C>(
self
) -> Result<<A as DynCastExtAdvHelper<<C as DynCastConfig>::Source, <C as DynCastConfig>::Target>>::Target, <A as DynCastExtAdvHelper<<C as DynCastConfig>::Source, <C as DynCastConfig>::Target>>::Source> where
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A: DynCastExtAdvHelper<<C as DynCastConfig>::Source, <C as DynCastConfig>::Target>,
fn dyn_cast_with_config<C>(
self
) -> Result<<A as DynCastExtAdvHelper<<C as DynCastConfig>::Source, <C as DynCastConfig>::Target>>::Target, <A as DynCastExtAdvHelper<<C as DynCastConfig>::Source, <C as DynCastConfig>::Target>>::Source> where
C: DynCastConfig,
A: DynCastExtAdvHelper<<C as DynCastConfig>::Source, <C as DynCastConfig>::Target>,
Use this to cast from one trait object type to another. With this method the type parameter is a config type that uniquely specifies which cast should be preformed. Read more
sourceimpl<Q, K> Equivalent<K> for Q where
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,
impl<Q, K> Equivalent<K> for Q where
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,
sourcefn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
Compare self to key
and return true
if they are equal.
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impl<V, T> VZip<V> for T where
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