Struct msql_srv::StatusFlags

impl StatusFlags

pub const SERVER_STATUS_IN_TRANS: StatusFlags = _

Is raised when a multi-statement transaction has been started, either explicitly, by means of BEGIN or COMMIT AND CHAIN, or implicitly, by the first transactional statement, when autocommit=off.

pub const SERVER_STATUS_AUTOCOMMIT: StatusFlags = _

Server in auto_commit mode.

pub const SERVER_MORE_RESULTS_EXISTS: StatusFlags = _

Multi query - next query exists.

pub const SERVER_STATUS_NO_GOOD_INDEX_USED: StatusFlags = _

pub const SERVER_STATUS_NO_INDEX_USED: StatusFlags = _

pub const SERVER_STATUS_CURSOR_EXISTS: StatusFlags = _

The server was able to fulfill the clients request and opened a read-only non-scrollable cursor for a query. This flag comes in reply to COM_STMT_EXECUTE and COM_STMT_FETCH commands. Used by Binary Protocol Resultset to signal that COM_STMT_FETCH must be used to fetch the row-data.

pub const SERVER_STATUS_LAST_ROW_SENT: StatusFlags = _

This flag is sent when a read-only cursor is exhausted, in reply to COM_STMT_FETCH command.

pub const SERVER_STATUS_DB_DROPPED: StatusFlags = _

A database was dropped.

pub const SERVER_STATUS_NO_BACKSLASH_ESCAPES: StatusFlags = _

pub const SERVER_STATUS_METADATA_CHANGED: StatusFlags = _

Sent to the client if after a prepared statement reprepare we discovered that the new statement returns a different number of result set columns.

pub const SERVER_QUERY_WAS_SLOW: StatusFlags = _

pub const SERVER_PS_OUT_PARAMS: StatusFlags = _

To mark ResultSet containing output parameter values.

pub const SERVER_STATUS_IN_TRANS_READONLY: StatusFlags = _

Set at the same time as SERVER_STATUS_IN_TRANS if the started multi-statement transaction is a read-only transaction. Cleared when the transaction commits or aborts. Since this flag is sent to clients in OK and EOF packets, the flag indicates the transaction status at the end of command execution.

pub const SERVER_SESSION_STATE_CHANGED: StatusFlags = _

This status flag, when on, implies that one of the state information has changed on the server because of the execution of the last statement.

impl StatusFlags

pub const fn empty() -> StatusFlags

Returns an empty set of flags.

pub const fn all() -> StatusFlags

Returns the set containing all flags.

pub const fn bits(&self) -> u16

Returns the raw value of the flags currently stored.

pub const fn from_bits(bits: u16) -> Option<StatusFlags>

Convert from underlying bit representation, unless that representation contains bits that do not correspond to a flag.

pub const fn from_bits_truncate(bits: u16) -> StatusFlags

Convert from underlying bit representation, dropping any bits that do not correspond to flags.

pub const fn from_bits_retain(bits: u16) -> StatusFlags

Convert from underlying bit representation, preserving all bits (even those not corresponding to a defined flag).

pub fn from_name(name: &str) -> Option<StatusFlags>

Get the value for a flag from its stringified name.

Names are case-sensitive, so must correspond exactly to the identifier given to the flag.

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: StatusFlags) -> bool

Returns true if there are flags common to both self and other.

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

Returns true if all of the flags in other are contained within self.

pub fn insert(&mut self, other: StatusFlags)

Inserts the specified flags in-place.

pub fn remove(&mut self, other: StatusFlags)

Removes the specified flags in-place.

pub fn toggle(&mut self, other: StatusFlags)

Toggles the specified flags in-place.

pub fn set(&mut self, other: StatusFlags, value: bool)

Inserts or removes the specified flags depending on the passed value.

pub const fn intersection(self, other: StatusFlags) -> StatusFlags

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.

pub const fn union(self, other: StatusFlags) -> StatusFlags

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.

pub const fn difference(self, other: StatusFlags) -> StatusFlags

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.

pub const fn symmetric_difference(self, other: StatusFlags) -> StatusFlags

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.

pub const fn complement(self) -> StatusFlags

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.

impl StatusFlags

pub const fn iter(&self) -> Iter<StatusFlags>

Iterate over enabled flag values.

pub const fn iter_names(&self) -> IterNames<StatusFlags>

Iterate over enabled flag values with their stringified names.

Trait Implementations§

impl Binary for StatusFlags

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

Formats the value using the given formatter.

impl BitAnd for StatusFlags

fn bitand(self, other: StatusFlags) -> StatusFlags

Returns the intersection between the two sets of flags.

type Output = StatusFlags

The resulting type after applying the & operator.

impl BitAndAssign for StatusFlags

fn bitand_assign(&mut self, other: StatusFlags)

Disables all flags disabled in the set.

impl BitOr for StatusFlags

fn bitor(self, other: StatusFlags) -> StatusFlags

Returns the union of the two sets of flags.

type Output = StatusFlags

The resulting type after applying the | operator.

impl BitOrAssign for StatusFlags

fn bitor_assign(&mut self, other: StatusFlags)

Adds the set of flags.

impl BitXor for StatusFlags

fn bitxor(self, other: StatusFlags) -> StatusFlags

Returns the left flags, but with all the right flags toggled.

type Output = StatusFlags

The resulting type after applying the ^ operator.

impl BitXorAssign for StatusFlags

fn bitxor_assign(&mut self, other: StatusFlags)

Toggles the set of flags.

impl Clone for StatusFlags

fn clone(&self) -> StatusFlags

Returns a copy of the value. Read more

1.0.0 · source§

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

Performs copy-assignment from source. Read more

impl Debug for StatusFlags

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

Formats the value using the given formatter. Read more

impl Default for StatusFlags

fn default() -> StatusFlags

Returns the “default value” for a type. Read more

impl Extend<StatusFlags> for StatusFlags

fn extend<T>(&mut self, iterator: T)
where T: IntoIterator<Item = StatusFlags>,

Extends a collection with the contents of an iterator. Read more

fn extend_one(&mut self, item: A)

🔬This is a nightly-only experimental API. (extend_one)

Extends a collection with exactly one element.

fn extend_reserve(&mut self, additional: usize)

🔬This is a nightly-only experimental API. (extend_one)

Reserves capacity in a collection for the given number of additional elements. Read more

impl Flags for StatusFlags

const FLAGS: &'static [Flag<StatusFlags>] = _

The set of available flags and their names.

type Bits = u16

The underlying storage type.

fn bits(&self) -> u16

Returns the raw value of the flags currently stored.

fn from_bits_retain(bits: u16) -> StatusFlags

Convert from underlying bit representation, preserving all bits (even those not corresponding to a defined flag).

fn empty() -> Self

Returns an empty set of flags.

fn all() -> Self

Returns the set containing all flags.

fn from_bits(bits: Self::Bits) -> Option<Self>

Convert from underlying bit representation, unless that representation contains bits that do not correspond to a flag. Read more

fn from_bits_truncate(bits: Self::Bits) -> Self

Convert from underlying bit representation, dropping any bits that do not correspond to flags. Read more

fn from_name(name: &str) -> Option<Self>

Get the flag for a particular name.

fn iter(&self) -> Iter<Self>

Iterate over enabled flag values.

fn iter_names(&self) -> IterNames<Self>

Iterate over the raw names and bits for enabled flag values.

fn is_empty(&self) -> bool

Returns true if no flags are currently stored.

fn is_all(&self) -> bool

Returns true if all flags are currently set.

fn intersects(&self, other: Self) -> bool
where Self: Sized,

Returns true if there are flags common to both self and other.

fn contains(&self, other: Self) -> bool
where Self: Sized,

Returns true if all of the flags in other are contained within self.

fn insert(&mut self, other: Self)
where Self: Sized,

Inserts the specified flags in-place.

fn remove(&mut self, other: Self)
where Self: Sized,

Removes the specified flags in-place.

fn toggle(&mut self, other: Self)
where Self: Sized,

Toggles the specified flags in-place.

fn set(&mut self, other: Self, value: bool)
where Self: Sized,

Inserts or removes the specified flags depending on the passed value.

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

Returns the intersection between the flags in self and other. Read more

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

Returns the union of between the flags in self and other. Read more

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

Returns the difference between the flags in self and other. Read more

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

Returns the symmetric difference between the flags in self and other. Read more

fn complement(self) -> Self

Returns the complement of this set of flags. Read more

impl FromIterator<StatusFlags> for StatusFlags

fn from_iter<T>(iterator: T) -> StatusFlags
where T: IntoIterator<Item = StatusFlags>,

Creates a value from an iterator. Read more

impl Hash for StatusFlags

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

Feeds this value into the given Hasher. Read more

1.3.0 · source§

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

Feeds a slice of this type into the given Hasher. Read more

impl IntoIterator for StatusFlags

type Item = StatusFlags

The type of the elements being iterated over.

type IntoIter = Iter<StatusFlags>

Which kind of iterator are we turning this into?

fn into_iter(self) -> <StatusFlags as IntoIterator>::IntoIter

Creates an iterator from a value. Read more

impl LowerHex for StatusFlags

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

Formats the value using the given formatter.

impl Not for StatusFlags

fn not(self) -> StatusFlags

Returns the complement of this set of flags.

type Output = StatusFlags

The resulting type after applying the ! operator.

impl Octal for StatusFlags

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

Formats the value using the given formatter.

impl PartialEq for StatusFlags

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

This method tests for self and other values to be equal, and is used by ==.

1.0.0 · source§

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Sub for StatusFlags

fn sub(self, other: StatusFlags) -> StatusFlags

Returns the set difference of the two sets of flags.

type Output = StatusFlags

The resulting type after applying the - operator.

impl SubAssign for StatusFlags

fn sub_assign(&mut self, other: StatusFlags)

Disables all flags enabled in the set.

impl TryFrom<u16> for StatusFlags

type Error = UnknownStatusFlags

The type returned in the event of a conversion error.

fn try_from(val: u16) -> Result<StatusFlags, UnknownStatusFlags>

Performs the conversion.

impl UpperHex for StatusFlags

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

Formats the value using the given formatter.

impl StructuralPartialEq for StatusFlags

Auto Trait Implementations§

impl RefUnwindSafe for StatusFlags

impl Send for StatusFlags

impl Sync for StatusFlags

impl Unpin for StatusFlags

impl UnwindSafe for StatusFlags

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl BitFlags for B
where B: Flags,

type Iter = Iter

👎Deprecated: use the Flags trait instead

An iterator over enabled flags in an instance of the type.

type IterNames = IterNames

👎Deprecated: use the Flags trait instead

An iterator over the raw names and bits for enabled flags in an instance of the type.

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Causes self to use its LowerExp implementation when Debug-formatted.

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where Self: LowerHex,

Causes self to use its LowerHex implementation when Debug-formatted.

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Causes self to use its UpperExp implementation when Debug-formatted.

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Causes self to use its UpperHex implementation when Debug-formatted.

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Formats each item in a sequence. Read more

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