#[repr(transparent)]pub struct LocalTask<V: ValueType> { /* private fields */ }Expand description
LocalTask provides idiomatic access to gio’s GTask API, for
instance by being generic over their value type, while not completely departing
from the underlying C API. LocalTask does not require its value to be Send
and Sync and thus is useful to to implement gio style asynchronous
tasks that run in the glib main loop. If you need to run tasks in threads
see the Task type.
The constructors of LocalTask and Task is marked as unsafe because this API does
not allow to automatically enforce all the invariants required to be a completely
safe abstraction. See the Task type for more details.
Implementations§
source§impl<V: ValueType> LocalTask<V>
impl<V: ValueType> LocalTask<V>
pub unsafe fn new<S, P, Q>( source_object: Option<&S>, cancellable: Option<&P>, callback: Q ) -> Selfwhere S: IsA<Object>, P: IsA<Cancellable>, Q: FnOnce(LocalTask<V>, Option<&S>) + 'static,
pub fn cancellable(&self) -> Cancellable
pub fn is_check_cancellable(&self) -> bool
pub fn set_check_cancellable(&self, check_cancellable: bool)
pub fn set_name(&self, name: Option<&str>)
Available on crate feature
v2_60 only.pub fn set_return_on_cancel(&self, return_on_cancel: bool) -> bool
pub fn is_valid( result: &impl IsA<AsyncResult>, source_object: Option<&impl IsA<Object>> ) -> bool
pub fn priority(&self) -> Priority
pub fn set_priority(&self, priority: Priority)
pub fn is_completed(&self) -> bool
pub fn context(&self) -> MainContext
pub fn name(&self) -> Option<GString>
Available on crate feature
v2_60 only.pub fn is_return_on_cancel(&self) -> bool
pub fn had_error(&self) -> bool
pub fn connect_completed_notify<F>(&self, f: F) -> SignalHandlerIdwhere F: Fn(&LocalTask<V>) + 'static,
pub fn return_error_if_cancelled(&self) -> bool
pub fn return_result(self, result: Result<V, Error>)
pub fn propagate(self) -> Result<V, Error>
Trait Implementations§
source§impl<V: ValueType> Ord for LocalTask<V>
impl<V: ValueType> Ord for LocalTask<V>
source§impl<OT: ObjectType, V: ValueType> PartialOrd<OT> for LocalTask<V>
impl<OT: ObjectType, V: ValueType> PartialOrd<OT> for LocalTask<V>
1.0.0 · source§fn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
This method tests less than or equal to (for
self and other) and is used by the <=
operator. Read moresource§impl<V: ValueType> StaticType for LocalTask<V>
impl<V: ValueType> StaticType for LocalTask<V>
source§fn static_type() -> Type
fn static_type() -> Type
Returns the type identifier of
Self.impl<V: ValueType> Eq for LocalTask<V>
impl<V: ValueType> IsA<AsyncResult> for LocalTask<V>
Auto Trait Implementations§
impl<V> RefUnwindSafe for LocalTask<V>where V: RefUnwindSafe,
impl<V> !Send for LocalTask<V>
impl<V> !Sync for LocalTask<V>
impl<V> Unpin for LocalTask<V>where V: Unpin,
impl<V> UnwindSafe for LocalTask<V>where V: UnwindSafe,
Blanket Implementations§
source§impl<T> Cast for Twhere
T: ObjectType,
impl<T> Cast for Twhere T: ObjectType,
source§fn upcast<T>(self) -> Twhere
T: ObjectType,
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Upcasts an object to a superclass or interface
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fn set_property_from_value(&self, property_name: &str, value: &Value)
source§fn try_set_properties(
&self,
property_values: &[(&str, &dyn ToValue)]
) -> Result<(), BoolError>
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fn set_properties(&self, property_values: &[(&str, &dyn ToValue)])
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) -> Result<(), BoolError>
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fn set_properties_from_value(&self, property_values: &[(&str, Value)])
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Get the type of the property
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Get the
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fn list_properties(&self) -> PtrSlice<ParamSpec>
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fn freeze_notify(&self) -> PropertyNotificationFreezeGuard
Freeze all property notifications until the return guard object is dropped. Read more
source§unsafe fn set_qdata<QD>(&self, key: Quark, value: QD)where
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Set arbitrary data on this object with the given
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Return previously set arbitrary data of this object with the given
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unsafe fn steal_data<QD>(&self, key: &str) -> Option<QD>where QD: 'static,
Retrieve previously set arbitrary data of this object with the given
key. Read moresource§fn block_signal(&self, handler_id: &SignalHandlerId)
fn block_signal(&self, handler_id: &SignalHandlerId)
Block a given signal handler. Read more
source§fn unblock_signal(&self, handler_id: &SignalHandlerId)
fn unblock_signal(&self, handler_id: &SignalHandlerId)
Unblock a given signal handler.
source§fn stop_signal_emission(&self, signal_id: SignalId, detail: Option<Quark>)
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Stop emission of the currently emitted signal.
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fn stop_signal_emission_by_name(&self, signal_name: &str)
Stop emission of the currently emitted signal by the (possibly detailed) signal name.
source§fn try_connect<F>(
&self,
signal_name: &str,
after: bool,
callback: F
) -> Result<SignalHandlerId, BoolError>where
F: Fn(&[Value]) -> Option<Value> + Send + Sync + 'static,
fn try_connect<F>( &self, signal_name: &str, after: bool, callback: F ) -> Result<SignalHandlerId, BoolError>where F: Fn(&[Value]) -> Option<Value> + Send + Sync + 'static,
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&self,
signal_name: &str,
after: bool,
callback: F
) -> SignalHandlerIdwhere
F: Fn(&[Value]) -> Option<Value> + Send + Sync + 'static,
fn connect<F>( &self, signal_name: &str, after: bool, callback: F ) -> SignalHandlerIdwhere F: Fn(&[Value]) -> Option<Value> + Send + Sync + 'static,
Connect to the signal
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&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> Result<SignalHandlerId, BoolError>where
F: Fn(&[Value]) -> Option<Value> + Send + Sync + 'static,
fn try_connect_id<F>( &self, signal_id: SignalId, details: Option<Quark>, after: bool, callback: F ) -> Result<SignalHandlerId, BoolError>where F: Fn(&[Value]) -> Option<Value> + Send + Sync + 'static,
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&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> SignalHandlerIdwhere
F: Fn(&[Value]) -> Option<Value> + Send + Sync + 'static,
fn connect_id<F>( &self, signal_id: SignalId, details: Option<Quark>, after: bool, callback: F ) -> SignalHandlerIdwhere F: Fn(&[Value]) -> Option<Value> + Send + Sync + 'static,
Connect to the signal
signal_id on this object. Read moresource§fn try_connect_local<F>(
&self,
signal_name: &str,
after: bool,
callback: F
) -> Result<SignalHandlerId, BoolError>where
F: Fn(&[Value]) -> Option<Value> + 'static,
fn try_connect_local<F>( &self, signal_name: &str, after: bool, callback: F ) -> Result<SignalHandlerId, BoolError>where F: Fn(&[Value]) -> Option<Value> + 'static,
Similar to
Self::connect_local but fails instead of panicking.source§fn connect_local<F>(
&self,
signal_name: &str,
after: bool,
callback: F
) -> SignalHandlerIdwhere
F: Fn(&[Value]) -> Option<Value> + 'static,
fn connect_local<F>( &self, signal_name: &str, after: bool, callback: F ) -> SignalHandlerIdwhere F: Fn(&[Value]) -> Option<Value> + 'static,
Connect to the signal
signal_name on this object. Read moresource§fn try_connect_local_id<F>(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> Result<SignalHandlerId, BoolError>where
F: Fn(&[Value]) -> Option<Value> + 'static,
fn try_connect_local_id<F>( &self, signal_id: SignalId, details: Option<Quark>, after: bool, callback: F ) -> Result<SignalHandlerId, BoolError>where F: Fn(&[Value]) -> Option<Value> + 'static,
Similar to
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&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> SignalHandlerIdwhere
F: Fn(&[Value]) -> Option<Value> + 'static,
fn connect_local_id<F>( &self, signal_id: SignalId, details: Option<Quark>, after: bool, callback: F ) -> SignalHandlerIdwhere F: Fn(&[Value]) -> Option<Value> + 'static,
Connect to the signal
signal_id on this object. Read moresource§unsafe fn try_connect_unsafe<F>(
&self,
signal_name: &str,
after: bool,
callback: F
) -> Result<SignalHandlerId, BoolError>where
F: Fn(&[Value]) -> Option<Value>,
unsafe fn try_connect_unsafe<F>( &self, signal_name: &str, after: bool, callback: F ) -> Result<SignalHandlerId, BoolError>where F: Fn(&[Value]) -> Option<Value>,
Similar to
Self::connect_unsafe but fails instead of panicking.source§unsafe fn connect_unsafe<F>(
&self,
signal_name: &str,
after: bool,
callback: F
) -> SignalHandlerIdwhere
F: Fn(&[Value]) -> Option<Value>,
unsafe fn connect_unsafe<F>( &self, signal_name: &str, after: bool, callback: F ) -> SignalHandlerIdwhere F: Fn(&[Value]) -> Option<Value>,
Connect to the signal
signal_name on this object. Read moresource§unsafe fn try_connect_unsafe_id<F>(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> Result<SignalHandlerId, BoolError>where
F: Fn(&[Value]) -> Option<Value>,
unsafe fn try_connect_unsafe_id<F>( &self, signal_id: SignalId, details: Option<Quark>, after: bool, callback: F ) -> Result<SignalHandlerId, BoolError>where F: Fn(&[Value]) -> Option<Value>,
Similar to
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&self,
signal_name: &str,
after: bool,
closure: RustClosure
) -> Result<SignalHandlerId, BoolError>
fn try_connect_closure( &self, signal_name: &str, after: bool, closure: RustClosure ) -> Result<SignalHandlerId, BoolError>
Similar to
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&self,
signal_name: &str,
after: bool,
closure: RustClosure
) -> SignalHandlerId
fn connect_closure( &self, signal_name: &str, after: bool, closure: RustClosure ) -> SignalHandlerId
Connect a closure to the signal
signal_name on this object. Read moresource§fn try_connect_closure_id(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
closure: RustClosure
) -> Result<SignalHandlerId, BoolError>
fn try_connect_closure_id( &self, signal_id: SignalId, details: Option<Quark>, after: bool, closure: RustClosure ) -> Result<SignalHandlerId, BoolError>
Similar to
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&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
closure: RustClosure
) -> SignalHandlerId
fn connect_closure_id( &self, signal_id: SignalId, details: Option<Quark>, after: bool, closure: RustClosure ) -> SignalHandlerId
Connect a closure to the signal
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fn watch_closure(&self, closure: &impl AsRef<Closure>)
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Closure::invoke.source§unsafe fn connect_unsafe_id<F>(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> SignalHandlerIdwhere
F: Fn(&[Value]) -> Option<Value>,
unsafe fn connect_unsafe_id<F>( &self, signal_id: SignalId, details: Option<Quark>, after: bool, callback: F ) -> SignalHandlerIdwhere F: Fn(&[Value]) -> Option<Value>,
Connect to the signal
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&self,
signal_id: SignalId,
args: &[&dyn ToValue]
) -> Result<R, BoolError>where
R: TryFromClosureReturnValue,
fn try_emit<R>( &self, signal_id: SignalId, args: &[&dyn ToValue] ) -> Result<R, BoolError>where R: TryFromClosureReturnValue,
Similar to
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source§fn try_emit_with_values(
&self,
signal_id: SignalId,
args: &[Value]
) -> Result<Option<Value>, BoolError>
fn try_emit_with_values( &self, signal_id: SignalId, args: &[Value] ) -> Result<Option<Value>, BoolError>
Similar to
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fn emit_with_values(&self, signal_id: SignalId, args: &[Value]) -> Option<Value>
Same as
Self::emit but takes Value for the arguments.source§fn try_emit_by_name<R>(
&self,
signal_name: &str,
args: &[&dyn ToValue]
) -> Result<R, BoolError>where
R: TryFromClosureReturnValue,
fn try_emit_by_name<R>( &self, signal_name: &str, args: &[&dyn ToValue] ) -> Result<R, BoolError>where R: TryFromClosureReturnValue,
Similar to
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R: TryFromClosureReturnValue,
fn emit_by_name<R>(&self, signal_name: &str, args: &[&dyn ToValue]) -> Rwhere R: TryFromClosureReturnValue,
Emit signal by its name. Read more
source§fn try_emit_by_name_with_values(
&self,
signal_name: &str,
args: &[Value]
) -> Result<Option<Value>, BoolError>
fn try_emit_by_name_with_values( &self, signal_name: &str, args: &[Value] ) -> Result<Option<Value>, BoolError>
Similar to
Self::emit_by_name_with_values but fails instead of panicking.source§fn emit_by_name_with_values(
&self,
signal_name: &str,
args: &[Value]
) -> Option<Value>
fn emit_by_name_with_values( &self, signal_name: &str, args: &[Value] ) -> Option<Value>
Emit signal by its name. Read more
source§fn try_emit_by_name_with_details<R>(
&self,
signal_name: &str,
details: Quark,
args: &[&dyn ToValue]
) -> Result<R, BoolError>where
R: TryFromClosureReturnValue,
fn try_emit_by_name_with_details<R>( &self, signal_name: &str, details: Quark, args: &[&dyn ToValue] ) -> Result<R, BoolError>where R: TryFromClosureReturnValue,
Similar to
Self::emit_by_name_with_details but fails instead of panicking.source§fn emit_by_name_with_details<R>(
&self,
signal_name: &str,
details: Quark,
args: &[&dyn ToValue]
) -> Rwhere
R: TryFromClosureReturnValue,
fn emit_by_name_with_details<R>( &self, signal_name: &str, details: Quark, args: &[&dyn ToValue] ) -> Rwhere R: TryFromClosureReturnValue,
Emit signal by its name with details. Read more
source§fn try_emit_by_name_with_details_and_values(
&self,
signal_name: &str,
details: Quark,
args: &[Value]
) -> Result<Option<Value>, BoolError>
fn try_emit_by_name_with_details_and_values( &self, signal_name: &str, details: Quark, args: &[Value] ) -> Result<Option<Value>, BoolError>
Similar to
Self::emit_by_name_with_details_and_values but fails instead of panicking.source§fn emit_by_name_with_details_and_values(
&self,
signal_name: &str,
details: Quark,
args: &[Value]
) -> Option<Value>
fn emit_by_name_with_details_and_values( &self, signal_name: &str, details: Quark, args: &[Value] ) -> Option<Value>
Emit signal by its name with details. Read more
source§fn try_emit_with_details<R>(
&self,
signal_id: SignalId,
details: Quark,
args: &[&dyn ToValue]
) -> Result<R, BoolError>where
R: TryFromClosureReturnValue,
fn try_emit_with_details<R>( &self, signal_id: SignalId, details: Quark, args: &[&dyn ToValue] ) -> Result<R, BoolError>where R: TryFromClosureReturnValue,
Similar to
Self::emit_with_details but fails instead of panicking.source§fn emit_with_details<R>(
&self,
signal_id: SignalId,
details: Quark,
args: &[&dyn ToValue]
) -> Rwhere
R: TryFromClosureReturnValue,
fn emit_with_details<R>( &self, signal_id: SignalId, details: Quark, args: &[&dyn ToValue] ) -> Rwhere R: TryFromClosureReturnValue,
Emit signal by signal id with details. Read more
source§fn try_emit_with_details_and_values(
&self,
signal_id: SignalId,
details: Quark,
args: &[Value]
) -> Result<Option<Value>, BoolError>
fn try_emit_with_details_and_values( &self, signal_id: SignalId, details: Quark, args: &[Value] ) -> Result<Option<Value>, BoolError>
Similar to
Self::emit_with_details_and_values but fails instead of panicking.source§fn emit_with_details_and_values(
&self,
signal_id: SignalId,
details: Quark,
args: &[Value]
) -> Option<Value>
fn emit_with_details_and_values( &self, signal_id: SignalId, details: Quark, args: &[Value] ) -> Option<Value>
Emit signal by signal id with details. Read more
source§fn disconnect(&self, handler_id: SignalHandlerId)
fn disconnect(&self, handler_id: SignalHandlerId)
Disconnect a previously connected signal handler.
source§fn connect_notify<F>(&self, name: Option<&str>, f: F) -> SignalHandlerIdwhere
F: Fn(&T, &ParamSpec) + Send + Sync + 'static,
fn connect_notify<F>(&self, name: Option<&str>, f: F) -> SignalHandlerIdwhere F: Fn(&T, &ParamSpec) + Send + Sync + 'static,
Connect to the
notify signal of the object. Read moresource§fn connect_notify_local<F>(&self, name: Option<&str>, f: F) -> SignalHandlerIdwhere
F: Fn(&T, &ParamSpec) + 'static,
fn connect_notify_local<F>(&self, name: Option<&str>, f: F) -> SignalHandlerIdwhere F: Fn(&T, &ParamSpec) + 'static,
Connect to the
notify signal of the object. Read moresource§unsafe fn connect_notify_unsafe<F>(
&self,
name: Option<&str>,
f: F
) -> SignalHandlerIdwhere
F: Fn(&T, &ParamSpec),
unsafe fn connect_notify_unsafe<F>( &self, name: Option<&str>, f: F ) -> SignalHandlerIdwhere F: Fn(&T, &ParamSpec),
Connect to the
notify signal of the object. Read moresource§fn notify(&self, property_name: &str)
fn notify(&self, property_name: &str)
Notify that the given property has changed its value. Read more
source§fn notify_by_pspec(&self, pspec: &ParamSpec)
fn notify_by_pspec(&self, pspec: &ParamSpec)
Notify that the given property has changed its value. Read more
source§fn bind_property<O, 'a>(
&'a self,
source_property: &'a str,
target: &'a O,
target_property: &'a str
) -> BindingBuilder<'a>where
O: ObjectType,
fn bind_property<O, 'a>( &'a self, source_property: &'a str, target: &'a O, target_property: &'a str ) -> BindingBuilder<'a>where O: ObjectType,
source§impl<T> StaticTypeExt for Twhere
T: StaticType,
impl<T> StaticTypeExt for Twhere T: StaticType,
source§fn ensure_type()
fn ensure_type()
Ensures that the type has been registered with the type system.