pub struct StatusFlags(/* private fields */);
Expand description
MySql server status flags
Implementations§
Source§impl StatusFlags
impl StatusFlags
Sourcepub const SERVER_STATUS_IN_TRANS: Self = _
pub const SERVER_STATUS_IN_TRANS: Self = _
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.
Sourcepub const SERVER_STATUS_AUTOCOMMIT: Self = _
pub const SERVER_STATUS_AUTOCOMMIT: Self = _
Server in auto_commit mode.
Sourcepub const SERVER_MORE_RESULTS_EXISTS: Self = _
pub const SERVER_MORE_RESULTS_EXISTS: Self = _
Multi query - next query exists.
pub const SERVER_STATUS_NO_GOOD_INDEX_USED: Self = _
pub const SERVER_STATUS_NO_INDEX_USED: Self = _
Sourcepub const SERVER_STATUS_CURSOR_EXISTS: Self = _
pub const SERVER_STATUS_CURSOR_EXISTS: Self = _
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.
Sourcepub const SERVER_STATUS_LAST_ROW_SENT: Self = _
pub const SERVER_STATUS_LAST_ROW_SENT: Self = _
This flag is sent when a read-only cursor is exhausted, in reply to COM_STMT_FETCH command.
Sourcepub const SERVER_STATUS_DB_DROPPED: Self = _
pub const SERVER_STATUS_DB_DROPPED: Self = _
A database was dropped.
pub const SERVER_STATUS_NO_BACKSLASH_ESCAPES: Self = _
Sourcepub const SERVER_STATUS_METADATA_CHANGED: Self = _
pub const SERVER_STATUS_METADATA_CHANGED: Self = _
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: Self = _
Sourcepub const SERVER_PS_OUT_PARAMS: Self = _
pub const SERVER_PS_OUT_PARAMS: Self = _
To mark ResultSet containing output parameter values.
Sourcepub const SERVER_STATUS_IN_TRANS_READONLY: Self = _
pub const SERVER_STATUS_IN_TRANS_READONLY: Self = _
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.
Sourcepub const SERVER_SESSION_STATE_CHANGED: Self = _
pub const SERVER_SESSION_STATE_CHANGED: Self = _
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.
Sourcepub const SERVER_STATUS_ANSI_QUOTES: Self = _
pub const SERVER_STATUS_ANSI_QUOTES: Self = _
Introduced by mariadb. Contain the information about ANSI_QUOTES SQL_MODE.
Source§impl StatusFlags
impl StatusFlags
Sourcepub const fn bits(&self) -> u16
pub const fn bits(&self) -> u16
Get the underlying bits value.
The returned value is exactly the bits set in this flags value.
Sourcepub const fn from_bits(bits: u16) -> Option<Self>
pub const fn from_bits(bits: u16) -> Option<Self>
Convert from a bits value.
This method will return None
if any unknown bits are set.
Sourcepub const fn from_bits_truncate(bits: u16) -> Self
pub const fn from_bits_truncate(bits: u16) -> Self
Convert from a bits value, unsetting any unknown bits.
Sourcepub const fn from_bits_retain(bits: u16) -> Self
pub const fn from_bits_retain(bits: u16) -> Self
Convert from a bits value exactly.
Sourcepub fn from_name(name: &str) -> Option<Self>
pub fn from_name(name: &str) -> Option<Self>
Get a flags value with the bits of a flag with the given name set.
This method will return None
if name
is empty or doesn’t
correspond to any named flag.
Sourcepub const fn intersects(&self, other: Self) -> bool
pub const fn intersects(&self, other: Self) -> bool
Whether any set bits in a source flags value are also set in a target flags value.
Sourcepub const fn contains(&self, other: Self) -> bool
pub const fn contains(&self, other: Self) -> bool
Whether all set bits in a source flags value are also set in a target flags value.
Sourcepub fn remove(&mut self, other: Self)
pub fn remove(&mut self, other: Self)
The intersection of a source flags value with the complement of a target flags value (&!
).
This method is not equivalent to self & !other
when other
has unknown bits set.
remove
won’t truncate other
, but the !
operator will.
Sourcepub fn toggle(&mut self, other: Self)
pub fn toggle(&mut self, other: Self)
The bitwise exclusive-or (^
) of the bits in two flags values.
Sourcepub fn set(&mut self, other: Self, value: bool)
pub fn set(&mut self, other: Self, value: bool)
Call insert
when value
is true
or remove
when value
is false
.
Sourcepub const fn intersection(self, other: Self) -> Self
pub const fn intersection(self, other: Self) -> Self
The bitwise and (&
) of the bits in two flags values.
Sourcepub const fn union(self, other: Self) -> Self
pub const fn union(self, other: Self) -> Self
The bitwise or (|
) of the bits in two flags values.
Sourcepub const fn difference(self, other: Self) -> Self
pub const fn difference(self, other: Self) -> Self
The intersection of a source flags value with the complement of a target flags value (&!
).
This method is not equivalent to self & !other
when other
has unknown bits set.
difference
won’t truncate other
, but the !
operator will.
Sourcepub const fn symmetric_difference(self, other: Self) -> Self
pub const fn symmetric_difference(self, other: Self) -> Self
The bitwise exclusive-or (^
) of the bits in two flags values.
Sourcepub const fn complement(self) -> Self
pub const fn complement(self) -> Self
The bitwise negation (!
) of the bits in a flags value, truncating the result.
Source§impl StatusFlags
impl StatusFlags
Sourcepub const fn iter(&self) -> Iter<StatusFlags>
pub const fn iter(&self) -> Iter<StatusFlags>
Yield a set of contained flags values.
Each yielded flags value will correspond to a defined named flag. Any unknown bits will be yielded together as a final flags value.
Sourcepub const fn iter_names(&self) -> IterNames<StatusFlags>
pub const fn iter_names(&self) -> IterNames<StatusFlags>
Yield a set of contained named flags values.
This method is like iter
, except only yields bits in contained named flags.
Any unknown bits, or bits not corresponding to a contained flag will not be yielded.
Trait Implementations§
Source§impl Binary for StatusFlags
impl Binary for StatusFlags
Source§impl BitAnd for StatusFlags
impl BitAnd for StatusFlags
Source§impl BitAndAssign for StatusFlags
impl BitAndAssign for StatusFlags
Source§fn bitand_assign(&mut self, other: Self)
fn bitand_assign(&mut self, other: Self)
The bitwise and (&
) of the bits in two flags values.
Source§impl BitOr for StatusFlags
impl BitOr for StatusFlags
Source§fn bitor(self, other: StatusFlags) -> Self
fn bitor(self, other: StatusFlags) -> Self
The bitwise or (|
) of the bits in two flags values.
Source§type Output = StatusFlags
type Output = StatusFlags
|
operator.Source§impl BitOrAssign for StatusFlags
impl BitOrAssign for StatusFlags
Source§fn bitor_assign(&mut self, other: Self)
fn bitor_assign(&mut self, other: Self)
The bitwise or (|
) of the bits in two flags values.
Source§impl BitXor for StatusFlags
impl BitXor for StatusFlags
Source§impl BitXorAssign for StatusFlags
impl BitXorAssign for StatusFlags
Source§fn bitxor_assign(&mut self, other: Self)
fn bitxor_assign(&mut self, other: Self)
The bitwise exclusive-or (^
) of the bits in two flags values.
Source§impl Clone for StatusFlags
impl Clone for StatusFlags
Source§fn clone(&self) -> StatusFlags
fn clone(&self) -> StatusFlags
1.0.0 · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moreSource§impl Debug for StatusFlags
impl Debug for StatusFlags
Source§impl Default for StatusFlags
impl Default for StatusFlags
Source§fn default() -> StatusFlags
fn default() -> StatusFlags
Source§impl Extend<StatusFlags> for StatusFlags
impl Extend<StatusFlags> for StatusFlags
Source§fn extend<T: IntoIterator<Item = Self>>(&mut self, iterator: T)
fn extend<T: IntoIterator<Item = Self>>(&mut self, iterator: T)
The bitwise or (|
) of the bits in each flags value.
Source§fn extend_one(&mut self, item: A)
fn extend_one(&mut self, item: A)
extend_one
)Source§fn extend_reserve(&mut self, additional: usize)
fn extend_reserve(&mut self, additional: usize)
extend_one
)Source§impl Flags for StatusFlags
impl Flags for StatusFlags
Source§const FLAGS: &'static [Flag<StatusFlags>] = _
const FLAGS: &'static [Flag<StatusFlags>] = _
Source§fn from_bits_retain(bits: u16) -> StatusFlags
fn from_bits_retain(bits: u16) -> StatusFlags
Source§fn from_bits_truncate(bits: Self::Bits) -> Self
fn from_bits_truncate(bits: Self::Bits) -> Self
Source§fn from_name(name: &str) -> Option<Self>
fn from_name(name: &str) -> Option<Self>
Source§fn iter_names(&self) -> IterNames<Self>
fn iter_names(&self) -> IterNames<Self>
Source§fn intersects(&self, other: Self) -> boolwhere
Self: Sized,
fn intersects(&self, other: Self) -> boolwhere
Self: Sized,
Source§fn contains(&self, other: Self) -> boolwhere
Self: Sized,
fn contains(&self, other: Self) -> boolwhere
Self: Sized,
Source§fn insert(&mut self, other: Self)where
Self: Sized,
fn insert(&mut self, other: Self)where
Self: Sized,
|
) of the bits in two flags values.Source§fn remove(&mut self, other: Self)where
Self: Sized,
fn remove(&mut self, other: Self)where
Self: Sized,
&!
). Read moreSource§fn toggle(&mut self, other: Self)where
Self: Sized,
fn toggle(&mut self, other: Self)where
Self: Sized,
^
) of the bits in two flags values.Source§fn intersection(self, other: Self) -> Self
fn intersection(self, other: Self) -> Self
&
) of the bits in two flags values.Source§fn difference(self, other: Self) -> Self
fn difference(self, other: Self) -> Self
&!
). Read moreSource§fn symmetric_difference(self, other: Self) -> Self
fn symmetric_difference(self, other: Self) -> Self
^
) of the bits in two flags values.Source§fn complement(self) -> Self
fn complement(self) -> Self
!
) of the bits in a flags value, truncating the result.Source§impl From<StatusFlags> for u16
impl From<StatusFlags> for u16
Source§fn from(val: StatusFlags) -> u16
fn from(val: StatusFlags) -> u16
Source§impl FromIterator<StatusFlags> for StatusFlags
impl FromIterator<StatusFlags> for StatusFlags
Source§fn from_iter<T: IntoIterator<Item = Self>>(iterator: T) -> Self
fn from_iter<T: IntoIterator<Item = Self>>(iterator: T) -> Self
The bitwise or (|
) of the bits in each flags value.
Source§impl Hash for StatusFlags
impl Hash for StatusFlags
Source§impl IntoIterator for StatusFlags
impl IntoIterator for StatusFlags
Source§impl LowerHex for StatusFlags
impl LowerHex for StatusFlags
Source§impl Not for StatusFlags
impl Not for StatusFlags
Source§impl Octal for StatusFlags
impl Octal for StatusFlags
Source§impl PartialEq for StatusFlags
impl PartialEq for StatusFlags
Source§impl PublicFlags for StatusFlags
impl PublicFlags for StatusFlags
Source§impl Sub for StatusFlags
impl Sub for StatusFlags
Source§fn sub(self, other: Self) -> Self
fn sub(self, other: Self) -> Self
The intersection of a source flags value with the complement of a target flags value (&!
).
This method is not equivalent to self & !other
when other
has unknown bits set.
difference
won’t truncate other
, but the !
operator will.
Source§type Output = StatusFlags
type Output = StatusFlags
-
operator.Source§impl SubAssign for StatusFlags
impl SubAssign for StatusFlags
Source§fn sub_assign(&mut self, other: Self)
fn sub_assign(&mut self, other: Self)
The intersection of a source flags value with the complement of a target flags value (&!
).
This method is not equivalent to self & !other
when other
has unknown bits set.
difference
won’t truncate other
, but the !
operator will.
Source§impl TryFrom<u16> for StatusFlags
impl TryFrom<u16> for StatusFlags
Source§type Error = UnknownStatusFlags
type Error = UnknownStatusFlags
Source§fn try_from(val: u16) -> Result<StatusFlags, UnknownStatusFlags>
fn try_from(val: u16) -> Result<StatusFlags, UnknownStatusFlags>
Source§impl UpperHex for StatusFlags
impl UpperHex for StatusFlags
impl Copy for StatusFlags
impl Eq for StatusFlags
impl StructuralPartialEq for StatusFlags
Auto Trait Implementations§
impl Freeze for StatusFlags
impl RefUnwindSafe for StatusFlags
impl Send for StatusFlags
impl Sync for StatusFlags
impl Unpin for StatusFlags
impl UnwindSafe for StatusFlags
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T: ?Sized,
impl<T> BorrowMut<T> for Twhere
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