Struct gio::FileOutputStream
source · pub struct FileOutputStream { /* private fields */ }
Expand description
GFileOutputStream provides output streams that write their content to a file.
GFileOutputStream implements Seekable
, which allows the output
stream to jump to arbitrary positions in the file and to truncate
the file, provided the filesystem of the file supports these
operations.
To find the position of a file output stream, use SeekableExt::tell()
.
To find out if a file output stream supports seeking, use
SeekableExt::can_seek()
.To position a file output stream, use
SeekableExt::seek()
. To find out if a file output stream supports
truncating, use SeekableExt::can_truncate()
. To truncate a file output
stream, use SeekableExt::truncate()
.
Implements
FileOutputStreamExt
, OutputStreamExt
, glib::ObjectExt
, SeekableExt
, OutputStreamExtManual
Implementations§
source§impl FileOutputStream
impl FileOutputStream
pub const NONE: Option<&'static FileOutputStream> = None
Trait Implementations§
source§impl Clone for FileOutputStream
impl Clone for FileOutputStream
source§impl Debug for FileOutputStream
impl Debug for FileOutputStream
source§impl Display for FileOutputStream
impl Display for FileOutputStream
source§impl HasParamSpec for FileOutputStream
impl HasParamSpec for FileOutputStream
type ParamSpec = ParamSpecObject
§type SetValue = FileOutputStream
type SetValue = FileOutputStream
Preferred value to be used as setter for the associated ParamSpec.
type BuilderFn = fn(_: &str) -> ParamSpecObjectBuilder<'_, FileOutputStream>
fn param_spec_builder() -> Self::BuilderFn
source§impl Hash for FileOutputStream
impl Hash for FileOutputStream
source§impl Ord for FileOutputStream
impl Ord for FileOutputStream
source§impl ParentClassIs for FileOutputStream
impl ParentClassIs for FileOutputStream
type Parent = OutputStream
source§impl<OT: ObjectType> PartialEq<OT> for FileOutputStream
impl<OT: ObjectType> PartialEq<OT> for FileOutputStream
source§impl<OT: ObjectType> PartialOrd<OT> for FileOutputStream
impl<OT: ObjectType> PartialOrd<OT> for FileOutputStream
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 FileOutputStream
impl StaticType for FileOutputStream
source§fn static_type() -> Type
fn static_type() -> Type
Returns the type identifier of
Self
.impl Eq for FileOutputStream
impl IsA<OutputStream> for FileOutputStream
impl IsA<Seekable> for FileOutputStream
Auto Trait Implementations§
impl RefUnwindSafe for FileOutputStream
impl !Send for FileOutputStream
impl !Sync for FileOutputStream
impl Unpin for FileOutputStream
impl UnwindSafe for FileOutputStream
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
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Self: IsA<T>,
Upcasts an object to a superclass or interface
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. Read moresource§fn upcast_ref<T>(&self) -> &Twhere
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Self: IsA<T>,
fn upcast_ref<T>(&self) -> &Twhere
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Self: IsA<T>,
Upcasts an object to a reference of its superclass or interface
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Tries to downcast to a subclass or interface implementor
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will
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fn dynamic_cast_ref<T>(&self) -> Option<&T>where
T: ObjectType,
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and casting between interface and interface implementors. All checks are performed at
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and upcast
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T: ObjectType,
unsafe fn unsafe_cast<T>(self) -> Twhere
T: ObjectType,
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T
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T: ObjectType,
unsafe fn unsafe_cast_ref<T>(&self) -> &Twhere
T: ObjectType,
Casts to
&T
unconditionally. Read moresource§impl<O> FileOutputStreamExt for Owhere
O: IsA<FileOutputStream>,
impl<O> FileOutputStreamExt for Owhere
O: IsA<FileOutputStream>,
source§fn etag(&self) -> Option<GString>
fn etag(&self) -> Option<GString>
Gets the entity tag for the file when it has been written.
This must be called after the stream has been written
and closed, as the etag can change while writing. Read more
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 output stream for the given
attributes
.
This function blocks while querying the stream. For the asynchronous
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 )
Asynchronously queries the
self
for a FileInfo
. When completed,
callback
will be called with a AsyncResult
which can be used to
finish the operation with g_file_output_stream_query_info_finish()
. Read morefn query_info_future( &self, attributes: &str, io_priority: Priority ) -> Pin<Box_<dyn Future<Output = Result<FileInfo, Error>> + 'static>>
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args: &[&dyn ToValue]
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&self,
name: Option<&str>,
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) -> SignalHandlerId
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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<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: 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 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()
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the result of the operation. Read morefn close_future( &self, io_priority: Priority ) -> Pin<Box_<dyn Future<Output = Result<(), Error>> + 'static>>
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: FnOnce(Result<(), Error>) + 'static>(
&self,
io_priority: Priority,
cancellable: Option<&impl IsA<Cancellable>>,
callback: P
)
fn flush_async<P: FnOnce(Result<(), Error>) + 'static>( &self, io_priority: Priority, cancellable: Option<&impl IsA<Cancellable>>, callback: P )
fn flush_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 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
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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: FnOnce(Result<isize, Error>) + 'static>(
&self,
source: &impl IsA<InputStream>,
flags: OutputStreamSpliceFlags,
io_priority: Priority,
cancellable: Option<&impl IsA<Cancellable>>,
callback: P
)
fn splice_async<P: FnOnce(Result<isize, Error>) + 'static>( &self, source: &impl IsA<InputStream>, flags: OutputStreamSpliceFlags, io_priority: Priority, cancellable: Option<&impl IsA<Cancellable>>, callback: P )
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>>
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
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bindings or in other cases where the refcounted nature of glib::Bytes
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&self,
bytes: &Bytes,
io_priority: Priority,
cancellable: Option<&impl IsA<Cancellable>>,
callback: P
)
fn write_bytes_async<P: FnOnce(Result<isize, Error>) + 'static>( &self, bytes: &Bytes, io_priority: Priority, cancellable: Option<&impl IsA<Cancellable>>, callback: P )
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>>
source§impl<O> OutputStreamExtManual for Owhere
O: IsA<OutputStream>,
impl<O> OutputStreamExtManual for Owhere
O: IsA<OutputStream>,
source§fn write_async<B: AsRef<[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 write_async<B: AsRef<[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 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: IsA<Cancellable>>(
&self,
buffer: &[u8],
cancellable: Option<&C>
) -> Result<(usize, Option<Error>), Error>
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source§fn write_all_async<B: AsRef<[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 write_all_async<B: AsRef<[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 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: AsRef<[u8]> + Send + 'static>( &self, buffer: B, io_priority: Priority ) -> Pin<Box<dyn Future<Output = Result<(B, usize), (B, Error)>> + 'static>>
fn write_all_future<B: AsRef<[u8]> + Send + 'static>( &self, buffer: B, io_priority: Priority ) -> Pin<Box<dyn Future<Output = Result<(B, usize, Option<Error>), (B, Error)>> + 'static>>
source§fn writev(
&self,
vectors: &[OutputVector<'_>],
cancellable: Option<&impl IsA<Cancellable>>
) -> Result<usize, Error>
fn writev( &self, vectors: &[OutputVector<'_>], cancellable: Option<&impl IsA<Cancellable>> ) -> Result<usize, Error>
Available on crate feature
v2_60
only.Tries to write the bytes contained in the
n_vectors
vectors
into the
stream. Will block during the operation. Read moresource§fn writev_async<B: AsRef<[u8]> + Send + 'static, P: FnOnce(Result<(Vec<B>, usize), (Vec<B>, Error)>) + 'static>(
&self,
vectors: impl IntoIterator<Item = B> + 'static,
io_priority: Priority,
cancellable: Option<&impl IsA<Cancellable>>,
callback: P
)
fn writev_async<B: AsRef<[u8]> + Send + 'static, P: FnOnce(Result<(Vec<B>, usize), (Vec<B>, Error)>) + 'static>( &self, vectors: impl IntoIterator<Item = B> + 'static, io_priority: Priority, cancellable: Option<&impl IsA<Cancellable>>, callback: P )
Available on crate feature
v2_60
only.Request an asynchronous write of the bytes contained in
n_vectors
vectors
into
the stream. When the operation is finished callback
will be called.
You can then call g_output_stream_writev_finish()
to get the result of the
operation. Read moresource§fn writev_future<B: AsRef<[u8]> + Send + 'static>(
&self,
vectors: impl IntoIterator<Item = B> + 'static,
io_priority: Priority
) -> Pin<Box<dyn Future<Output = Result<(Vec<B>, usize), (Vec<B>, Error)>> + 'static>>
fn writev_future<B: AsRef<[u8]> + Send + 'static>( &self, vectors: impl IntoIterator<Item = B> + 'static, io_priority: Priority ) -> Pin<Box<dyn Future<Output = Result<(Vec<B>, usize), (Vec<B>, Error)>> + 'static>>
Available on crate feature
v2_60
only.source§fn writev_all(
&self,
vectors: &[OutputVector<'_>],
cancellable: Option<&impl IsA<Cancellable>>
) -> Result<(usize, Option<Error>), Error>
fn writev_all( &self, vectors: &[OutputVector<'_>], cancellable: Option<&impl IsA<Cancellable>> ) -> Result<(usize, Option<Error>), Error>
Available on crate feature
v2_60
only.Tries to write the bytes contained in the
n_vectors
vectors
into the
stream. Will block during the operation. Read moresource§fn writev_all_async<B: AsRef<[u8]> + Send + 'static, P: FnOnce(Result<(Vec<B>, usize, Option<Error>), (Vec<B>, Error)>) + 'static>(
&self,
vectors: impl IntoIterator<Item = B> + 'static,
io_priority: Priority,
cancellable: Option<&impl IsA<Cancellable>>,
callback: P
)
fn writev_all_async<B: AsRef<[u8]> + Send + 'static, P: FnOnce(Result<(Vec<B>, usize, Option<Error>), (Vec<B>, Error)>) + 'static>( &self, vectors: impl IntoIterator<Item = B> + 'static, io_priority: Priority, cancellable: Option<&impl IsA<Cancellable>>, callback: P )
Available on crate feature
v2_60
only.Request an asynchronous write of the bytes contained in the
n_vectors
vectors
into
the stream. When the operation is finished callback
will be called.
You can then call g_output_stream_writev_all_finish()
to get the result of the
operation. Read moresource§fn writev_all_future<B: AsRef<[u8]> + Send + 'static>(
&self,
vectors: impl IntoIterator<Item = B> + 'static,
io_priority: Priority
) -> Pin<Box<dyn Future<Output = Result<(Vec<B>, usize, Option<Error>), (Vec<B>, Error)>> + 'static>>
fn writev_all_future<B: AsRef<[u8]> + Send + 'static>( &self, vectors: impl IntoIterator<Item = B> + 'static, io_priority: Priority ) -> Pin<Box<dyn Future<Output = Result<(Vec<B>, usize, Option<Error>), (Vec<B>, Error)>> + 'static>>
Available on crate feature
v2_60
only.fn into_write(self) -> OutputStreamWrite<Self> ⓘwhere
Self: IsA<OutputStream>,
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>
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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.