#[repr(transparent)]pub struct Status { /* private fields */ }
Expand description
VirtIo Device Status.
Implementations§
source§impl Status
impl Status
sourcepub const ACKNOWLEDGE: Self = _
pub const ACKNOWLEDGE: Self = _
Indicates that the guest OS has found the device and recognized it as a valid virtio device.
sourcepub const DRIVER: Self = _
pub const DRIVER: Self = _
Indicates that the guest OS knows how to drive the device.
Note: There could be a significant (or infinite) delay before setting this bit. For example, under Linux, drivers can be loadable modules.
sourcepub const DRIVER_OK: Self = _
pub const DRIVER_OK: Self = _
Indicates that the driver is set up and ready to drive the device.
sourcepub const FEATURES_OK: Self = _
pub const FEATURES_OK: Self = _
Indicates that the driver has acknowledged all the features it understands, and feature negotiation is complete.
sourcepub const DEVICE_NEEDS_RESET: Self = _
pub const DEVICE_NEEDS_RESET: Self = _
Indicates that the device has experienced an error from which it can’t recover.
sourcepub const FAILED: Self = _
pub const FAILED: Self = _
Indicates that something went wrong in the guest, and it has given up on the device. This could be an internal error, or the driver didn’t like the device for some reason, or even a fatal error during device operation.
sourcepub const fn from_bits(bits: u8) -> Option<Self>
pub const fn from_bits(bits: u8) -> Option<Self>
Convert from underlying bit representation, unless that representation contains bits that do not correspond to a flag.
sourcepub const fn from_bits_truncate(bits: u8) -> Self
pub const fn from_bits_truncate(bits: u8) -> Self
Convert from underlying bit representation, dropping any bits that do not correspond to flags.
sourcepub const unsafe fn from_bits_unchecked(bits: u8) -> Self
pub const unsafe fn from_bits_unchecked(bits: u8) -> Self
Convert from underlying bit representation, preserving all bits (even those not corresponding to a defined flag).
Safety
The caller of the bitflags!
macro can chose to allow or
disallow extra bits for their bitflags type.
The caller of from_bits_unchecked()
has to ensure that
all bits correspond to a defined flag or that extra bits
are valid for this bitflags type.
sourcepub const fn intersects(&self, other: Self) -> bool
pub const fn intersects(&self, other: Self) -> bool
Returns true
if there are flags common to both self
and other
.
sourcepub const fn contains(&self, other: Self) -> bool
pub const fn contains(&self, other: Self) -> bool
Returns true
if all of the flags in other
are contained within self
.
sourcepub fn set(&mut self, other: Self, value: bool)
pub fn set(&mut self, other: Self, value: bool)
Inserts or removes the specified flags depending on the passed value.
sourcepub const fn intersection(self, other: Self) -> Self
pub const fn intersection(self, other: Self) -> Self
Returns the intersection between the flags in self
and
other
.
Specifically, the returned set contains only the flags which are
present in both self
and other
.
This is equivalent to using the &
operator (e.g.
ops::BitAnd
), as in flags & other
.
sourcepub const fn union(self, other: Self) -> Self
pub const fn union(self, other: Self) -> Self
Returns the union of between the flags in self
and other
.
Specifically, the returned set contains all flags which are
present in either self
or other
, including any which are
present in both (see Self::symmetric_difference
if that
is undesirable).
This is equivalent to using the |
operator (e.g.
ops::BitOr
), as in flags | other
.
sourcepub const fn difference(self, other: Self) -> Self
pub const fn difference(self, other: Self) -> Self
Returns the difference between the flags in self
and other
.
Specifically, the returned set contains all flags present in
self
, except for the ones present in other
.
It is also conceptually equivalent to the “bit-clear” operation:
flags & !other
(and this syntax is also supported).
This is equivalent to using the -
operator (e.g.
ops::Sub
), as in flags - other
.
sourcepub const fn symmetric_difference(self, other: Self) -> Self
pub const fn symmetric_difference(self, other: Self) -> Self
Returns the symmetric difference between the flags
in self
and other
.
Specifically, the returned set contains the flags present which
are present in self
or other
, but that are not present in
both. Equivalently, it contains the flags present in exactly
one of the sets self
and other
.
This is equivalent to using the ^
operator (e.g.
ops::BitXor
), as in flags ^ other
.
sourcepub const fn complement(self) -> Self
pub const fn complement(self) -> Self
Returns the complement of this set of flags.
Specifically, the returned set contains all the flags which are
not set in self
, but which are allowed for this type.
Alternatively, it can be thought of as the set difference
between Self::all()
and self
(e.g. Self::all() - self
)
This is equivalent to using the !
operator (e.g.
ops::Not
), as in !flags
.
Trait Implementations§
source§impl BitAndAssign<Status> for Status
impl BitAndAssign<Status> for Status
source§fn bitand_assign(&mut self, other: Self)
fn bitand_assign(&mut self, other: Self)
Disables all flags disabled in the set.
source§impl BitOrAssign<Status> for Status
impl BitOrAssign<Status> for Status
source§fn bitor_assign(&mut self, other: Self)
fn bitor_assign(&mut self, other: Self)
Adds the set of flags.
source§impl BitXorAssign<Status> for Status
impl BitXorAssign<Status> for Status
source§fn bitxor_assign(&mut self, other: Self)
fn bitxor_assign(&mut self, other: Self)
Toggles the set of flags.
source§impl Extend<Status> for Status
impl Extend<Status> for Status
source§fn extend<T: IntoIterator<Item = Self>>(&mut self, iterator: T)
fn extend<T: IntoIterator<Item = Self>>(&mut self, iterator: T)
§fn extend_one(&mut self, item: A)
fn extend_one(&mut self, item: A)
extend_one
)§fn extend_reserve(&mut self, additional: usize)
fn extend_reserve(&mut self, additional: usize)
extend_one
)source§impl Ord for Status
impl Ord for Status
source§impl PartialOrd<Status> for Status
impl PartialOrd<Status> for Status
source§impl SubAssign<Status> for Status
impl SubAssign<Status> for Status
source§fn sub_assign(&mut self, other: Self)
fn sub_assign(&mut self, other: Self)
Disables all flags enabled in the set.