Struct gio::FileInputStream
source · pub struct FileInputStream { /* private fields */ }
Expand description
GFileInputStream provides input streams that take their content from a file.
GFileInputStream implements Seekable
, which allows the input
stream to jump to arbitrary positions in the file, provided the
filesystem of the file allows it. To find the position of a file
input stream, use SeekableExt::tell()
. To find out if a file input
stream supports seeking, use SeekableExt::can_seek()
.
To position a file input stream, use SeekableExt::seek()
.
Implements
FileInputStreamExt
, InputStreamExt
, glib::ObjectExt
, SeekableExt
, InputStreamExtManual
Implementations§
source§impl FileInputStream
impl FileInputStream
pub const NONE: Option<&'static FileInputStream> = None
Trait Implementations§
source§impl Clone for FileInputStream
impl Clone for FileInputStream
source§impl Debug for FileInputStream
impl Debug for FileInputStream
source§impl Display for FileInputStream
impl Display for FileInputStream
source§impl HasParamSpec for FileInputStream
impl HasParamSpec for FileInputStream
type ParamSpec = ParamSpecObject
§type SetValue = FileInputStream
type SetValue = FileInputStream
Preferred value to be used as setter for the associated ParamSpec.
type BuilderFn = fn(_: &str) -> ParamSpecObjectBuilder<'_, FileInputStream>
fn param_spec_builder() -> Self::BuilderFn
source§impl Hash for FileInputStream
impl Hash for FileInputStream
source§impl Ord for FileInputStream
impl Ord for FileInputStream
source§impl ParentClassIs for FileInputStream
impl ParentClassIs for FileInputStream
type Parent = InputStream
source§impl<OT: ObjectType> PartialEq<OT> for FileInputStream
impl<OT: ObjectType> PartialEq<OT> for FileInputStream
source§impl<OT: ObjectType> PartialOrd<OT> for FileInputStream
impl<OT: ObjectType> PartialOrd<OT> for FileInputStream
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 FileInputStream
impl StaticType for FileInputStream
source§fn static_type() -> Type
fn static_type() -> Type
Returns the type identifier of
Self
.impl Eq for FileInputStream
impl IsA<InputStream> for FileInputStream
impl IsA<Seekable> for FileInputStream
Auto Trait Implementations§
impl RefUnwindSafe for FileInputStream
impl !Send for FileInputStream
impl !Sync for FileInputStream
impl Unpin for FileInputStream
impl UnwindSafe for FileInputStream
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
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. Read moresource§fn upcast_ref<T>(&self) -> &Twhere
T: ObjectType,
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
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Self: MayDowncastTo<T>,
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Tries to downcast to a subclass or interface implementor
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. 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
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. 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
T: ObjectType,
unsafe fn unsafe_cast_ref<T>(&self) -> &Twhere
T: ObjectType,
Casts to
&T
unconditionally. Read moresource§impl<O> FileInputStreamExt for Owhere
O: IsA<FileInputStream>,
impl<O> FileInputStreamExt for Owhere
O: IsA<FileInputStream>,
source§fn query_info(
&self,
attributes: &str,
cancellable: Option<&impl IsA<Cancellable>>
) -> Result<FileInfo, Error>
fn query_info( &self, attributes: &str, cancellable: Option<&impl IsA<Cancellable>> ) -> Result<FileInfo, Error>
Queries a file input stream the given
attributes
. This function blocks
while querying the stream. For the asynchronous (non-blocking) version
of this function, see query_info_async()
. While the
stream is blocked, the stream will set the pending flag internally, and
any other operations on the stream will fail with IOErrorEnum::Pending
. Read moresource§fn query_info_async<P: FnOnce(Result<FileInfo, Error>) + 'static>(
&self,
attributes: &str,
io_priority: Priority,
cancellable: Option<&impl IsA<Cancellable>>,
callback: P
)
fn query_info_async<P: FnOnce(Result<FileInfo, Error>) + 'static>( &self, attributes: &str, io_priority: Priority, cancellable: Option<&impl IsA<Cancellable>>, callback: P )
Queries the stream information asynchronously.
When the operation is finished
callback
will be called.
You can then call g_file_input_stream_query_info_finish()
to get the result of the operation. Read morefn query_info_future( &self, attributes: &str, io_priority: Priority ) -> Pin<Box_<dyn Future<Output = Result<FileInfo, Error>> + 'static>>
source§impl<T> FromGlibContainerAsVec<<T as GlibPtrDefault>::GlibType, *const GList> for 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
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&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
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&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.
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to get the result
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source§impl<O> InputStreamExtManual for Owhere
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source§fn read<B: AsMut<[u8]>, C: IsA<Cancellable>>(
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) -> Result<usize, Error>
fn read<B: AsMut<[u8]>, C: IsA<Cancellable>>( &self, buffer: B, cancellable: Option<&C> ) -> Result<usize, Error>
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&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>
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&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
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&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>
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source§unsafe fn set_qdata<QD>(&self, key: Quark, value: QD)where
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fn block_signal(&self, handler_id: &SignalHandlerId)
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fn unblock_signal(&self, handler_id: &SignalHandlerId)
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Stop emission of the currently emitted signal.
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source§fn connect<F>(
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fn connect_local<F>( &self, signal_name: &str, after: bool, callback: F ) -> SignalHandlerId
Connect to the signal
signal_name
on this object. Read moresource§fn connect_local_id<F>(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> SignalHandlerId
fn connect_local_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§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<O> SeekableExt for O
impl<O> SeekableExt for O
source§fn can_truncate(&self) -> bool
fn can_truncate(&self) -> bool
Tests if the length of the stream can be adjusted with
truncate()
. Read moresource§fn seek(
&self,
offset: i64,
type_: SeekType,
cancellable: Option<&impl IsA<Cancellable>>
) -> Result<(), Error>
fn seek( &self, offset: i64, type_: SeekType, cancellable: Option<&impl IsA<Cancellable>> ) -> Result<(), Error>
source§fn truncate(
&self,
offset: i64,
cancellable: Option<&impl IsA<Cancellable>>
) -> Result<(), Error>
fn truncate( &self, offset: i64, cancellable: Option<&impl IsA<Cancellable>> ) -> Result<(), Error>
Sets the length of the stream to
offset
. If the stream was previously
larger than offset
, the extra data is discarded. If the stream was
previously shorter than offset
, it is extended with NUL (‘\0’) bytes. Read moresource§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.