Struct gio::OutputStream
source · #[repr(transparent)]pub struct OutputStream { /* private fields */ }
Expand description
OutputStream
has functions to write to a stream (OutputStreamExt::write()
),
to close a stream (OutputStreamExt::close()
) and to flush pending writes
(OutputStreamExt::flush()
).
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 OutputStream
impl OutputStream
pub const NONE: Option<&'static OutputStream> = None
Trait Implementations§
source§impl Clone for OutputStream
impl Clone for OutputStream
source§impl Debug for OutputStream
impl Debug for OutputStream
source§impl Display for OutputStream
impl Display for OutputStream
source§impl Hash for OutputStream
impl Hash for OutputStream
source§impl<T: OutputStreamImpl> IsSubclassable<T> for OutputStream
impl<T: OutputStreamImpl> IsSubclassable<T> for OutputStream
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 OutputStream
impl Ord for OutputStream
source§impl ParentClassIs for OutputStream
impl ParentClassIs for OutputStream
source§impl<OT: ObjectType> PartialEq<OT> for OutputStream
impl<OT: ObjectType> PartialEq<OT> for OutputStream
source§impl<OT: ObjectType> PartialOrd<OT> for OutputStream
impl<OT: ObjectType> PartialOrd<OT> for OutputStream
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 OutputStream
impl StaticType for OutputStream
source§fn static_type() -> Type
fn static_type() -> Type
Returns the type identifier of
Self
.impl Eq for OutputStream
impl IsA<OutputStream> for BufferedOutputStream
impl IsA<OutputStream> for ConverterOutputStream
impl IsA<OutputStream> for DataOutputStream
impl IsA<OutputStream> for FileOutputStream
impl IsA<OutputStream> for FilterOutputStream
impl IsA<OutputStream> for MemoryOutputStream
impl IsA<OutputStream> for PollableOutputStream
impl IsA<OutputStream> for UnixOutputStream
Available on Unix only.
impl IsA<OutputStream> for WriteOutputStream
Auto Trait Implementations§
impl RefUnwindSafe for OutputStream
impl !Send for OutputStream
impl !Sync for OutputStream
impl Unpin for OutputStream
impl UnwindSafe for OutputStream
Blanket Implementations§
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Unblock a given signal handler.
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f: F
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unsafe fn run_dispose(&self)
Runs the dispose mechanism of the object. Read more
source§impl<O> OutputStreamExt for Owhere
O: IsA<OutputStream>,
impl<O> OutputStreamExt for Owhere O: IsA<OutputStream>,
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>(
&self,
io_priority: Priority,
cancellable: Option<&impl IsA<Cancellable>>,
callback: P
)where
P: FnOnce(Result<(), Error>) + 'static,
fn close_async<P>( &self, io_priority: Priority, cancellable: Option<&impl IsA<Cancellable>>, callback: P )where P: FnOnce(Result<(), Error>) + 'static,
Requests an asynchronous close of the stream, releasing resources
related to it. When the operation is finished
callback
will be
called. You can then call g_output_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, Global>>
source§fn flush(
&self,
cancellable: Option<&impl IsA<Cancellable>>
) -> Result<(), Error>
fn flush( &self, cancellable: Option<&impl IsA<Cancellable>> ) -> Result<(), Error>
Forces a write of all user-space buffered data for the given
self
. Will block during the operation. Closing the stream will
implicitly cause a flush. Read moresource§fn flush_async<P>(
&self,
io_priority: Priority,
cancellable: Option<&impl IsA<Cancellable>>,
callback: P
)where
P: FnOnce(Result<(), Error>) + 'static,
fn flush_async<P>( &self, io_priority: Priority, cancellable: Option<&impl IsA<Cancellable>>, callback: P )where P: FnOnce(Result<(), Error>) + 'static,
fn flush_future( &self, io_priority: Priority ) -> Pin<Box<dyn Future<Output = Result<(), Error>> + 'static, Global>>
source§fn has_pending(&self) -> bool
fn has_pending(&self) -> bool
Checks if an output stream has pending actions. Read more
source§fn is_closing(&self) -> bool
fn is_closing(&self) -> bool
Checks if an output stream is being closed. This can be
used inside e.g. a flush implementation to see if the
flush (or other i/o operation) is called from within
the closing operation. Read more
source§fn splice(
&self,
source: &impl IsA<InputStream>,
flags: OutputStreamSpliceFlags,
cancellable: Option<&impl IsA<Cancellable>>
) -> Result<isize, Error>
fn splice( &self, source: &impl IsA<InputStream>, flags: OutputStreamSpliceFlags, cancellable: Option<&impl IsA<Cancellable>> ) -> Result<isize, Error>
Splices an input stream into an output stream. Read more
source§fn splice_async<P>(
&self,
source: &impl IsA<InputStream>,
flags: OutputStreamSpliceFlags,
io_priority: Priority,
cancellable: Option<&impl IsA<Cancellable>>,
callback: P
)where
P: FnOnce(Result<isize, Error>) + 'static,
fn splice_async<P>( &self, source: &impl IsA<InputStream>, flags: OutputStreamSpliceFlags, io_priority: Priority, cancellable: Option<&impl IsA<Cancellable>>, callback: P )where P: FnOnce(Result<isize, Error>) + 'static,
Splices a stream asynchronously.
When the operation is finished
callback
will be called.
You can then call g_output_stream_splice_finish()
to get the
result of the operation. Read morefn splice_future( &self, source: &impl IsA<InputStream> + Clone + 'static, flags: OutputStreamSpliceFlags, io_priority: Priority ) -> Pin<Box<dyn Future<Output = Result<isize, Error>> + 'static, Global>>
source§fn write(
&self,
buffer: &[u8],
cancellable: Option<&impl IsA<Cancellable>>
) -> Result<isize, Error>
fn write( &self, buffer: &[u8], cancellable: Option<&impl IsA<Cancellable>> ) -> Result<isize, Error>
source§fn write_bytes(
&self,
bytes: &Bytes,
cancellable: Option<&impl IsA<Cancellable>>
) -> Result<isize, Error>
fn write_bytes( &self, bytes: &Bytes, cancellable: Option<&impl IsA<Cancellable>> ) -> Result<isize, Error>
A wrapper function for
write()
which takes a
glib::Bytes
as input. This can be more convenient for use by language
bindings or in other cases where the refcounted nature of glib::Bytes
is helpful over a bare pointer interface. Read moresource§fn write_bytes_async<P>(
&self,
bytes: &Bytes,
io_priority: Priority,
cancellable: Option<&impl IsA<Cancellable>>,
callback: P
)where
P: FnOnce(Result<isize, Error>) + 'static,
fn write_bytes_async<P>( &self, bytes: &Bytes, io_priority: Priority, cancellable: Option<&impl IsA<Cancellable>>, callback: P )where P: FnOnce(Result<isize, Error>) + 'static,
This function is similar to
OutputStreamExtManual::write_async()
, but
takes a glib::Bytes
as input. Due to the refcounted nature of glib::Bytes
,
this allows the stream to avoid taking a copy of the data. Read morefn write_bytes_future( &self, bytes: &Bytes, io_priority: Priority ) -> Pin<Box<dyn Future<Output = Result<isize, Error>> + 'static, Global>>
source§impl<O> OutputStreamExtManual for Owhere
O: IsA<OutputStream>,
impl<O> OutputStreamExtManual for Owhere O: IsA<OutputStream>,
source§fn write_async<B, Q, C>(
&self,
buffer: B,
io_priority: Priority,
cancellable: Option<&C>,
callback: Q
)where
B: AsRef<[u8]> + Send + 'static,
Q: FnOnce(Result<(B, usize), (B, Error)>) + 'static,
C: IsA<Cancellable>,
fn write_async<B, Q, C>( &self, buffer: B, io_priority: Priority, cancellable: Option<&C>, callback: Q )where B: AsRef<[u8]> + Send + 'static, Q: FnOnce(Result<(B, usize), (B, Error)>) + 'static, C: IsA<Cancellable>,
Request an asynchronous write of
count
bytes from buffer
into
the stream. When the operation is finished callback
will be called.
You can then call g_output_stream_write_finish()
to get the result of the
operation. Read moresource§fn write_all<C>(
&self,
buffer: &[u8],
cancellable: Option<&C>
) -> Result<(usize, Option<Error>), Error>where
C: IsA<Cancellable>,
fn write_all<C>( &self, buffer: &[u8], cancellable: Option<&C> ) -> Result<(usize, Option<Error>), Error>where C: IsA<Cancellable>,
source§fn write_all_async<B, Q, C>(
&self,
buffer: B,
io_priority: Priority,
cancellable: Option<&C>,
callback: Q
)where
B: AsRef<[u8]> + Send + 'static,
Q: FnOnce(Result<(B, usize, Option<Error>), (B, Error)>) + 'static,
C: IsA<Cancellable>,
fn write_all_async<B, Q, C>( &self, buffer: B, io_priority: Priority, cancellable: Option<&C>, callback: Q )where B: AsRef<[u8]> + Send + 'static, Q: FnOnce(Result<(B, usize, Option<Error>), (B, Error)>) + 'static, C: IsA<Cancellable>,
Request an asynchronous write of
count
bytes from buffer
into
the stream. When the operation is finished callback
will be called.
You can then call g_output_stream_write_all_finish()
to get the result of the
operation. Read morefn write_future<B, 'a>( &self, buffer: B, io_priority: Priority ) -> Pin<Box<dyn Future<Output = Result<(B, usize), (B, Error)>> + 'static, Global>>where B: AsRef<[u8]> + Send + 'static,
fn write_all_future<B, 'a>( &self, buffer: B, io_priority: Priority ) -> Pin<Box<dyn Future<Output = Result<(B, usize, Option<Error>), (B, Error)>> + 'static, Global>>where B: AsRef<[u8]> + Send + 'static,
fn into_write(self) -> OutputStreamWrite<Self> ⓘwhere Self: IsA<OutputStream>,
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.