Struct gio::InputStream
source · pub struct InputStream { /* private fields */ }
Expand description
InputStream
has functions to read from a stream (InputStreamExtManual::read()
),
to close a stream (InputStreamExt::close()
) and to skip some content
(InputStreamExt::skip()
).
To copy the content of an input stream to an output stream without
manually handling the reads and writes, use OutputStreamExt::splice()
.
See the documentation for IOStream
for details of thread safety of
streaming APIs.
All of these functions have async variants too.
This is an Abstract Base Class, you cannot instantiate it.
Implements
Implementations§
source§impl InputStream
impl InputStream
pub const NONE: Option<&'static InputStream> = None
Trait Implementations§
source§impl Clone for InputStream
impl Clone for InputStream
source§impl Debug for InputStream
impl Debug for InputStream
source§impl Display for InputStream
impl Display for InputStream
source§impl HasParamSpec for InputStream
impl HasParamSpec for InputStream
type ParamSpec = ParamSpecObject
§type SetValue = InputStream
type SetValue = InputStream
Preferred value to be used as setter for the associated ParamSpec.
type BuilderFn = fn(_: &str) -> ParamSpecObjectBuilder<'_, InputStream>
fn param_spec_builder() -> Self::BuilderFn
source§impl Hash for InputStream
impl Hash for InputStream
source§impl<T: InputStreamImpl> IsSubclassable<T> for InputStream
impl<T: InputStreamImpl> IsSubclassable<T> for InputStream
source§fn class_init(class: &mut Class<Self>)
fn class_init(class: &mut Class<Self>)
Override the virtual methods of this class for the given subclass and do other class
initialization. Read more
source§fn instance_init(instance: &mut InitializingObject<T>)
fn instance_init(instance: &mut InitializingObject<T>)
Instance specific initialization. Read more
source§impl Ord for InputStream
impl Ord for InputStream
source§impl ParentClassIs for InputStream
impl ParentClassIs for InputStream
source§impl<OT: ObjectType> PartialEq<OT> for InputStream
impl<OT: ObjectType> PartialEq<OT> for InputStream
source§impl<OT: ObjectType> PartialOrd<OT> for InputStream
impl<OT: ObjectType> PartialOrd<OT> for InputStream
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 StaticType for InputStream
impl StaticType for InputStream
source§fn static_type() -> Type
fn static_type() -> Type
Returns the type identifier of
Self
.impl Eq for InputStream
impl IsA<InputStream> for BufferedInputStream
impl IsA<InputStream> for ConverterInputStream
impl IsA<InputStream> for DataInputStream
impl IsA<InputStream> for FileInputStream
impl IsA<InputStream> for FilterInputStream
impl IsA<InputStream> for MemoryInputStream
impl IsA<InputStream> for PollableInputStream
impl IsA<InputStream> for ReadInputStream
impl IsA<InputStream> for UnixInputStream
Available on Unix only.
Auto Trait Implementations§
impl RefUnwindSafe for InputStream
impl !Send for InputStream
impl !Sync for InputStream
impl Unpin for InputStream
impl UnwindSafe for InputStream
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
source§impl<T> Cast for Twhere
T: ObjectType,
impl<T> Cast for Twhere
T: ObjectType,
source§fn upcast<T>(self) -> Twhere
T: ObjectType,
Self: IsA<T>,
fn upcast<T>(self) -> Twhere
T: ObjectType,
Self: IsA<T>,
Upcasts an object to a superclass or interface
T
. Read moresource§fn upcast_ref<T>(&self) -> &Twhere
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Self: IsA<T>,
fn upcast_ref<T>(&self) -> &Twhere
T: ObjectType,
Self: IsA<T>,
Upcasts an object to a reference of its superclass or interface
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. Read moresource§fn downcast<T>(self) -> Result<T, Self>where
T: ObjectType,
Self: MayDowncastTo<T>,
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Self: MayDowncastTo<T>,
Tries to downcast to a subclass or interface implementor
T
. Read moresource§fn downcast_ref<T>(&self) -> Option<&T>where
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Self: MayDowncastTo<T>,
fn downcast_ref<T>(&self) -> Option<&T>where
T: ObjectType,
Self: MayDowncastTo<T>,
Tries to downcast to a reference of its subclass or interface implementor
T
. Read moresource§fn dynamic_cast<T>(self) -> Result<T, Self>where
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fn dynamic_cast<T>(self) -> Result<T, Self>where
T: ObjectType,
Tries to cast to an object of type
T
. This handles upcasting, downcasting
and casting between interface and interface implementors. All checks are performed at
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will do many checks at compile-time already. downcast
will
perform the same checks at runtime as dynamic_cast
, but will also ensure some amount of
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T: ObjectType,
fn dynamic_cast_ref<T>(&self) -> Option<&T>where
T: ObjectType,
Tries to cast to reference to an object of type
T
. This handles upcasting, downcasting
and casting between interface and interface implementors. All checks are performed at
runtime, while downcast
and upcast
will do many checks at compile-time already. Read moresource§unsafe fn unsafe_cast<T>(self) -> Twhere
T: ObjectType,
unsafe fn unsafe_cast<T>(self) -> Twhere
T: ObjectType,
Casts to
T
unconditionally. Read moresource§unsafe fn unsafe_cast_ref<T>(&self) -> &Twhere
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source§impl<O> InputStreamExt for Owhere
O: IsA<InputStream>,
impl<O> InputStreamExt for Owhere
O: IsA<InputStream>,
source§fn clear_pending(&self)
fn clear_pending(&self)
Clears the pending flag on
self
.source§fn close(
&self,
cancellable: Option<&impl IsA<Cancellable>>
) -> Result<(), Error>
fn close( &self, cancellable: Option<&impl IsA<Cancellable>> ) -> Result<(), Error>
Closes the stream, releasing resources related to it. Read more
source§fn close_async<P: FnOnce(Result<(), Error>) + 'static>(
&self,
io_priority: Priority,
cancellable: Option<&impl IsA<Cancellable>>,
callback: P
)
fn close_async<P: FnOnce(Result<(), Error>) + 'static>( &self, io_priority: Priority, cancellable: Option<&impl IsA<Cancellable>>, callback: P )
Requests an asynchronous closes of the stream, releasing resources related to it.
When the operation is finished
callback
will be called.
You can then call g_input_stream_close_finish()
to get the result of the
operation. Read morefn close_future( &self, io_priority: Priority ) -> Pin<Box_<dyn Future<Output = Result<(), Error>> + 'static>>
source§fn has_pending(&self) -> bool
fn has_pending(&self) -> bool
Checks if an input stream has pending actions. Read more
source§fn read_bytes(
&self,
count: usize,
cancellable: Option<&impl IsA<Cancellable>>
) -> Result<Bytes, Error>
fn read_bytes( &self, count: usize, cancellable: Option<&impl IsA<Cancellable>> ) -> Result<Bytes, Error>
Like
InputStreamExtManual::read()
, this tries to read count
bytes from
the stream in a blocking fashion. However, rather than reading into
a user-supplied buffer, this will create a new glib::Bytes
containing
the data that was read. This may be easier to use from language
bindings. Read moresource§fn read_bytes_async<P: FnOnce(Result<Bytes, Error>) + 'static>(
&self,
count: usize,
io_priority: Priority,
cancellable: Option<&impl IsA<Cancellable>>,
callback: P
)
fn read_bytes_async<P: FnOnce(Result<Bytes, Error>) + 'static>( &self, count: usize, io_priority: Priority, cancellable: Option<&impl IsA<Cancellable>>, callback: P )
Request an asynchronous read of
count
bytes from the stream into a
new glib::Bytes
. When the operation is finished callback
will be
called. You can then call g_input_stream_read_bytes_finish()
to get the
result of the operation. Read morefn read_bytes_future( &self, count: usize, io_priority: Priority ) -> Pin<Box_<dyn Future<Output = Result<Bytes, Error>> + 'static>>
source§fn skip(
&self,
count: usize,
cancellable: Option<&impl IsA<Cancellable>>
) -> Result<isize, Error>
fn skip( &self, count: usize, cancellable: Option<&impl IsA<Cancellable>> ) -> Result<isize, Error>
Tries to skip
count
bytes from the stream. Will block during the operation. Read moresource§fn skip_async<P: FnOnce(Result<isize, Error>) + 'static>(
&self,
count: usize,
io_priority: Priority,
cancellable: Option<&impl IsA<Cancellable>>,
callback: P
)
fn skip_async<P: FnOnce(Result<isize, Error>) + 'static>( &self, count: usize, io_priority: Priority, cancellable: Option<&impl IsA<Cancellable>>, callback: P )
Request an asynchronous skip of
count
bytes from the stream.
When the operation is finished callback
will be called.
You can then call g_input_stream_skip_finish()
to get the result
of the operation. Read morefn skip_future( &self, count: usize, io_priority: Priority ) -> Pin<Box_<dyn Future<Output = Result<isize, Error>> + 'static>>
source§impl<O> InputStreamExtManual for Owhere
O: IsA<InputStream>,
impl<O> InputStreamExtManual for Owhere
O: IsA<InputStream>,
source§fn read<B: AsMut<[u8]>, C: IsA<Cancellable>>(
&self,
buffer: B,
cancellable: Option<&C>
) -> Result<usize, Error>
fn read<B: AsMut<[u8]>, C: IsA<Cancellable>>( &self, buffer: B, cancellable: Option<&C> ) -> Result<usize, Error>
Tries to read
count
bytes from the stream into the buffer starting at
buffer
. Will block during this read. Read moresource§fn read_all<B: AsMut<[u8]>, C: IsA<Cancellable>>(
&self,
buffer: B,
cancellable: Option<&C>
) -> Result<(usize, Option<Error>), Error>
fn read_all<B: AsMut<[u8]>, C: IsA<Cancellable>>( &self, buffer: B, cancellable: Option<&C> ) -> Result<(usize, Option<Error>), Error>
Tries to read
count
bytes from the stream into the buffer starting at
buffer
. Will block during this read. Read moresource§fn read_all_async<B: AsMut<[u8]> + Send + 'static, Q: FnOnce(Result<(B, usize, Option<Error>), (B, Error)>) + 'static, C: IsA<Cancellable>>(
&self,
buffer: B,
io_priority: Priority,
cancellable: Option<&C>,
callback: Q
)
fn read_all_async<B: AsMut<[u8]> + Send + 'static, Q: FnOnce(Result<(B, usize, Option<Error>), (B, Error)>) + 'static, C: IsA<Cancellable>>( &self, buffer: B, io_priority: Priority, cancellable: Option<&C>, callback: Q )
Request an asynchronous read of
count
bytes from the stream into the
buffer starting at buffer
. Read moresource§fn read_async<B: AsMut<[u8]> + Send + 'static, Q: FnOnce(Result<(B, usize), (B, Error)>) + 'static, C: IsA<Cancellable>>(
&self,
buffer: B,
io_priority: Priority,
cancellable: Option<&C>,
callback: Q
)
fn read_async<B: AsMut<[u8]> + Send + 'static, Q: FnOnce(Result<(B, usize), (B, Error)>) + 'static, C: IsA<Cancellable>>( &self, buffer: B, io_priority: Priority, cancellable: Option<&C>, callback: Q )
Request an asynchronous read of
count
bytes from the stream into the buffer
starting at buffer
. When the operation is finished callback
will be called.
You can then call g_input_stream_read_finish()
to get the result of the
operation. Read morefn read_all_future<B: AsMut<[u8]> + Send + 'static>( &self, buffer: B, io_priority: Priority ) -> Pin<Box<dyn Future<Output = Result<(B, usize, Option<Error>), (B, Error)>> + 'static>>
fn read_future<B: AsMut<[u8]> + Send + 'static>( &self, buffer: B, io_priority: Priority ) -> Pin<Box<dyn Future<Output = Result<(B, usize), (B, Error)>> + 'static>>
fn into_read(self) -> InputStreamRead<Self> ⓘwhere
Self: IsA<InputStream>,
fn into_async_buf_read(
self,
buffer_size: usize
) -> InputStreamAsyncBufRead<Self>where
Self: IsA<InputStream>,
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fn list_properties(&self) -> PtrSlice<ParamSpec>
Return all
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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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Retrieve previously set arbitrary data of this object with the given
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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>)
fn stop_signal_emission(&self, signal_id: SignalId, detail: Option<Quark>)
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.
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&self,
signal_name: &str,
after: bool,
callback: F
) -> SignalHandlerId
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Connect to the signal
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&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> SignalHandlerId
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Connect to the signal
signal_id
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&self,
signal_name: &str,
after: bool,
callback: F
) -> SignalHandlerId
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Connect to the signal
signal_name
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&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> SignalHandlerId
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Connect to the signal
signal_id
on this object. Read moresource§unsafe fn connect_unsafe<F>(
&self,
signal_name: &str,
after: bool,
callback: F
) -> SignalHandlerId
unsafe fn connect_unsafe<F>( &self, signal_name: &str, after: bool, callback: F ) -> SignalHandlerId
Connect to the signal
signal_name
on this object. Read moresource§unsafe fn connect_unsafe_id<F>(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> SignalHandlerId
unsafe fn connect_unsafe_id<F>( &self, signal_id: SignalId, details: Option<Quark>, after: bool, callback: F ) -> SignalHandlerId
Connect to the signal
signal_id
on this object. Read moresource§fn connect_closure(
&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 connect_closure_id(
&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
signal_id
on this object. Read moresource§fn watch_closure(&self, closure: &impl AsRef<Closure>)
fn watch_closure(&self, closure: &impl AsRef<Closure>)
Limits the lifetime of
closure
to the lifetime of the object. When
the object’s reference count drops to zero, the closure will be
invalidated. An invalidated closure will ignore any calls to
invoke_with_values
, or
invoke
when using Rust closures.source§fn emit<R>(&self, signal_id: SignalId, args: &[&dyn ToValue]) -> Rwhere
R: TryFromClosureReturnValue,
fn emit<R>(&self, signal_id: SignalId, args: &[&dyn ToValue]) -> Rwhere
R: TryFromClosureReturnValue,
Emit signal by signal id. Read more
source§fn emit_with_values(&self, signal_id: SignalId, args: &[Value]) -> Option<Value>
fn emit_with_values(&self, signal_id: SignalId, args: &[Value]) -> Option<Value>
Same as
Self::emit
but takes Value
for the arguments.source§fn emit_by_name<R>(&self, signal_name: &str, args: &[&dyn ToValue]) -> Rwhere
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 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 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 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 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 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) -> SignalHandlerId
fn connect_notify<F>(&self, name: Option<&str>, f: F) -> SignalHandlerId
Connect to the
notify
signal of the object. Read moresource§fn connect_notify_local<F>(&self, name: Option<&str>, f: F) -> SignalHandlerId
fn connect_notify_local<F>(&self, name: Option<&str>, f: F) -> SignalHandlerId
Connect to the
notify
signal of the object. Read moresource§unsafe fn connect_notify_unsafe<F>(
&self,
name: Option<&str>,
f: F
) -> SignalHandlerId
unsafe fn connect_notify_unsafe<F>( &self, name: Option<&str>, f: F ) -> SignalHandlerId
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 add_weak_ref_notify<F>(&self, f: F) -> WeakRefNotify<T>
fn add_weak_ref_notify<F>(&self, f: F) -> WeakRefNotify<T>
Add a callback to be notified when the Object is disposed.
source§fn add_weak_ref_notify_local<F>(&self, f: F) -> WeakRefNotify<T>where
F: FnOnce() + 'static,
fn add_weak_ref_notify_local<F>(&self, f: F) -> WeakRefNotify<T>where
F: FnOnce() + 'static,
Add a callback to be notified when the Object is disposed. Read more
source§fn bind_property<'f, 't, O, 'a>(
&'a self,
source_property: &'a str,
target: &'a O,
target_property: &'a str
) -> BindingBuilder<'a, 'f, 't>where
O: ObjectType,
fn bind_property<'f, 't, O, 'a>(
&'a self,
source_property: &'a str,
target: &'a O,
target_property: &'a str
) -> BindingBuilder<'a, 'f, 't>where
O: ObjectType,
source§unsafe fn run_dispose(&self)
unsafe fn run_dispose(&self)
Runs the dispose mechanism of the object. Read more
source§impl<T> PropertyGet for Twhere
T: HasParamSpec,
impl<T> PropertyGet for Twhere
T: HasParamSpec,
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.