Struct Capabilities 

pub struct Capabilities { /* private fields */ }

Bitmask of capabilities supported by the server.

Exchanged in the server handshake as a little-endian u64. Unknown bits may be defined by future minor protocol versions; clients must ignore them, and encode/decode preserves them.

Implementations

impl Capabilities

pub const PreloadCheck: Capabilities

The server supports the preload check message pair.

pub const fn bits(&self) -> u64

Returns the underlying bits of the bitmask.

pub const fn all_bits() -> Capabilities

Returns a bitmask that contains all values.

This will include bits that do not have any flags. Use ::all_flags() if you only want to use flags.

pub const fn all_flags() -> Capabilities

Returns a bitmask that contains all flags.

pub const fn is_all_bits(&self) -> bool

Returns true if the bitmask contains all values.

This will check for bits == !0, use .is_all_flags() if you only want to check for all flags

pub const fn is_all_flags(&self) -> bool

Returns true if the bitmask contains all flags.

This will fail if any unused bit is set, consider using .truncate() first.

pub const fn all() -> Capabilities

👎Deprecated:

Please use the ::all_bits() constructor

Returns a bitmask that contains all values.

This will include bits that do not have any flags. Use ::all_flags() if you only want to use flags.

pub const fn is_all(&self) -> bool

👎Deprecated:

Please use the .is_all_bits() method

Returns true if the bitmask contains all values.

This will check for bits == !0, use .is_all_flags() if you only want to check for all flags

pub const fn full() -> Capabilities

👎Deprecated:

Please use the ::all_flags() constructor

Returns a bitmask that contains all flags.

pub const fn is_full(&self) -> bool

👎Deprecated:

Please use the .is_all_flags() method

Returns true if the bitmask contains all flags.

This will fail if any unused bit is set, consider using .truncate() first.

pub const fn none() -> Capabilities

Returns a bitmask that does not contain any values.

pub const fn is_none(&self) -> bool

Returns true if the bitmask does not contain any values.

pub const fn truncate(&self) -> Capabilities

Returns a bitmask that only has bits corresponding to flags

pub const fn intersects(&self, other: Capabilities) -> bool

Returns true if self intersects with any value in other, or if other does not contain any values.

This is equivalent to (self & other) != 0 || other == 0.

pub const fn contains(&self, other: Capabilities) -> bool

Returns true if self contains all values of other.

This is equivalent to (self & other) == other.

pub const fn not(self) -> Capabilities

Returns the bitwise NOT of the bitmask.

pub const fn and(self, other: Capabilities) -> Capabilities

Returns the bitwise AND of the bitmask.

pub const fn or(self, other: Capabilities) -> Capabilities

Returns the bitwise OR of the bitmask.

pub const fn xor(self, other: Capabilities) -> Capabilities

Returns the bitwise XOR of the bitmask.

Trait Implementations

impl Binary for Capabilities

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl BitAnd for Capabilities

type Output = Capabilities

The resulting type after applying the & operator.

fn bitand(self, rhs: Capabilities) -> <Capabilities as BitAnd>::Output

Performs the & operation.

impl BitAndAssign for Capabilities

fn bitand_assign(&mut self, rhs: Capabilities)

Performs the &= operation.

impl BitOr for Capabilities

type Output = Capabilities

The resulting type after applying the | operator.

fn bitor(self, rhs: Capabilities) -> <Capabilities as BitOr>::Output

Performs the | operation.

impl BitOrAssign for Capabilities

fn bitor_assign(&mut self, rhs: Capabilities)

Performs the |= operation.

impl BitXor for Capabilities

type Output = Capabilities

The resulting type after applying the ^ operator.

fn bitxor(self, rhs: Capabilities) -> <Capabilities as BitXor>::Output

Performs the ^ operation.

impl BitXorAssign for Capabilities

fn bitxor_assign(&mut self, rhs: Capabilities)

Performs the ^= operation.

impl Clone for Capabilities

fn clone(&self) -> Capabilities

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Capabilities

impl Debug for Capabilities

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Decode for Capabilities

fn decode(input: &mut &[u8]) -> Result<Capabilities, DecodeError>

Reads a value from the front of input, advancing it past the consumed bytes.

impl Encode for Capabilities

fn encode(&self, out: &mut Vec<u8>) -> Result<(), EncodeError>

Appends the wire representation of the value to out.

impl Eq for Capabilities

impl From<u64> for Capabilities

fn from(val: u64) -> Capabilities

Converts to this type from the input type.

impl Hash for Capabilities

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl LowerHex for Capabilities

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Not for Capabilities

type Output = Capabilities

The resulting type after applying the ! operator.

fn not(self) -> <Capabilities as Not>::Output

Performs the unary ! operation.

impl Octal for Capabilities

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Ord for Capabilities

fn cmp(&self, other: &Capabilities) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Capabilities

fn eq(&self, other: &Capabilities) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl PartialEq<u64> for Capabilities

fn eq(&self, other: &u64) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl PartialOrd for Capabilities

fn partial_cmp(&self, other: &Capabilities) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for Capabilities

impl UpperHex for Capabilities

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.