Struct io_streams::StreamWriter [−][src]
pub struct StreamWriter { /* fields omitted */ }
Expand description
An unbuffered and unlocked output byte stream, implementing Write
,
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
Write to standard output.
Unlike std::io::stdout
, this stdout
returns a stream which is
unbuffered and unlocked.
Since it is unbuffered, it is often beneficial to wrap the resulting
StreamWriter
in a BufWriter
or LineWriter
.
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.
Write to an open file, taking ownership of it.
This method can be passed a std::fs::File
or similar File
types.
Write to an open TCP stream, taking ownership of it.
This method can be passed a std::net::TcpStream
or similar
TcpStream
types.
Write to the writing end of an open pipe, taking ownership of it.
Spawn the given command and write to its standard input. Its standard
output is redirected to Stdio::null()
.
Write to the given child standard input, taking ownership of it.
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.
Trait Implementations
Like AsRawHandle::as_raw_handle
and AsRawSocket::as_raw_socket
but can return either type. Read more
Write a buffer into this writer, returning how many bytes were written. Read more
Flush this output stream, ensuring that all intermediately buffered contents reach their destination. Read more
can_vector
)Determines if this Write
r has an efficient write_vectored
implementation. Read more
Attempts to write an entire buffer into this writer. Read more
write_all_vectored
)Attempts to write multiple buffers into this writer. Read more
Writes a formatted string into this writer, returning any error encountered. Read more
Auto Trait Implementations
impl !RefUnwindSafe for StreamWriter
impl Send for StreamWriter
impl !Sync for StreamWriter
impl Unpin for StreamWriter
impl !UnwindSafe for StreamWriter