Struct io_streams::StreamWriter [−][src]
An unbuffered and unlocked output byte stream, abstracted over the destination of the output.
It primarily consists of a single file handle, and also contains any resources needed to safely hold the file handle live.
Since it is unbuffered, and since many destinations have high per-call
overhead, it is often beneficial to wrap this in a BufWriter
or
LineWriter
.
Implementations
impl StreamWriter
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pub fn stdout() -> Result<Self>
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Write to standard output.
Unlike std::io::stdout
, this stdout
returns a stream which is
unbuffered and unlocked.
This acquires a std::io::StdoutLock
(in a non-recursive way) to
prevent accesses to std::io::Stdout
while this is live, and fails if
a StreamWriter
or StreamDuplexer
for standard output already exists.
#[must_use]pub fn file<Filelike: IntoUnsafeFile + Read + Write + Seek>(
filelike: Filelike
) -> Self
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filelike: Filelike
) -> Self
Write to an open file, taking ownership of it.
This method can be passed a std::fs::File
or similar File
types.
#[must_use]pub fn tcp_stream<Socketlike: IntoUnsafeSocket>(socketlike: Socketlike) -> Self
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Write to an open TCP stream, taking ownership of it.
This method can be passed a std::net::TcpStream
or similar
TcpStream
types.
#[must_use]pub fn pipe_writer(pipe_writer: PipeWriter) -> Self
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Write to the writing end of an open pipe, taking ownership of it.
pub fn write_to_command(mut command: Command) -> Result<Self>
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Spawn the given command and write to its standard input. Its standard
output is redirected to Stdio::null()
.
#[must_use]pub fn child_stdin(child_stdin: ChildStdin) -> Self
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Write to the given child standard input, taking ownership of it.
pub fn piped_thread(mut boxed_write: Box<dyn Write + Send>) -> Result<Self>
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Write to a boxed Write
implementation, taking ownership of it. This
works by creating a new thread to read the data through a pipe and
write it.
Writes to the pipe aren't synchronous with writes to the boxed Write
implementation. To ensure data is flushed all the way through the
thread and into the boxed Write
implementation, call flush
()
,
which synchronizes with the thread to ensure that is has completed
writing all pending output.
pub fn null() -> Result<Self>
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Write to the null device, which ignores all data.
Trait Implementations
impl AsRawHandleOrSocket for StreamWriter
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fn as_raw_handle_or_socket(&self) -> RawHandleOrSocket
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impl Debug for StreamWriter
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impl Write for StreamWriter
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fn write(&mut self, buf: &[u8]) -> Result<usize>
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fn flush(&mut self) -> Result<()>
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fn write_vectored(&mut self, bufs: &[IoSlice<'_>]) -> Result<usize>
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fn is_write_vectored(&self) -> bool
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fn write_all(&mut self, buf: &[u8]) -> Result<()>
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fn write_all_vectored(&mut self, bufs: &mut [IoSlice<'_>]) -> Result<()>
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fn write_fmt(&mut self, fmt: Arguments<'_>) -> Result<()>
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pub fn by_ref(&mut self) -> &mut Self
1.0.0[src]
Auto Trait Implementations
impl !RefUnwindSafe for StreamWriter
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impl Send for StreamWriter
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impl Sync for StreamWriter
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impl Unpin for StreamWriter
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impl !UnwindSafe for StreamWriter
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Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> AsUnsafeHandle for T where
T: AsRawHandleOrSocket,
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T: AsRawHandleOrSocket,
pub fn as_unsafe_handle(&self) -> UnsafeHandle
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impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,