pub struct Session { /* private fields */ }Expand description
An SSH session representing a connected client.
Implementations§
Source§impl Session
impl Session
Sourcepub fn set_output_sender(&mut self, tx: UnboundedSender<SessionOutput>)
pub fn set_output_sender(&mut self, tx: UnboundedSender<SessionOutput>)
Sets the output sender.
Sourcepub async fn set_input_receiver(&self, rx: Receiver<Vec<u8>>)
pub async fn set_input_receiver(&self, rx: Receiver<Vec<u8>>)
Sets the input receiver.
Sourcepub fn set_message_sender(&self, tx: Sender<Message>)
pub fn set_message_sender(&self, tx: Sender<Message>)
Sets the message sender for the bubbletea program.
Sourcepub fn send_message(&self, msg: Message)
pub fn send_message(&self, msg: Message)
Sends a message to the bubbletea program (if running).
Sourcepub fn remote_addr(&self) -> SocketAddr
pub fn remote_addr(&self) -> SocketAddr
Returns the remote address.
Sourcepub fn local_addr(&self) -> SocketAddr
pub fn local_addr(&self) -> SocketAddr
Returns the local address.
Sourcepub fn pty(&self) -> (Option<&Pty>, bool)
pub fn pty(&self) -> (Option<&Pty>, bool)
Returns the PTY and window change channel if allocated.
Sourcepub fn public_key(&self) -> Option<&PublicKey>
pub fn public_key(&self) -> Option<&PublicKey>
Returns the public key used for authentication.
Sourcepub fn write_stderr(&self, data: &[u8]) -> Result<usize>
pub fn write_stderr(&self, data: &[u8]) -> Result<usize>
Writes to stderr.
Sourcepub fn with_command(self, command: Vec<String>) -> Self
pub fn with_command(self, command: Vec<String>) -> Self
Sets the command.
Sourcepub fn with_env(self, key: impl Into<String>, value: impl Into<String>) -> Self
pub fn with_env(self, key: impl Into<String>, value: impl Into<String>) -> Self
Sets an environment variable.
Sourcepub fn with_public_key(self, key: PublicKey) -> Self
pub fn with_public_key(self, key: PublicKey) -> Self
Sets the public key.
Sourcepub fn with_subsystem(self, subsystem: impl Into<String>) -> Self
pub fn with_subsystem(self, subsystem: impl Into<String>) -> Self
Sets the subsystem.
Trait Implementations§
Source§impl Write for Session
impl Write for Session
Source§fn write(&mut self, buf: &[u8]) -> Result<usize>
fn write(&mut self, buf: &[u8]) -> Result<usize>
Source§fn flush(&mut self) -> Result<()>
fn flush(&mut self) -> Result<()>
Source§fn is_write_vectored(&self) -> bool
fn is_write_vectored(&self) -> bool
can_vector)1.0.0 · Source§fn write_all(&mut self, buf: &[u8]) -> Result<(), Error>
fn write_all(&mut self, buf: &[u8]) -> Result<(), Error>
Source§fn write_all_vectored(&mut self, bufs: &mut [IoSlice<'_>]) -> Result<(), Error>
fn write_all_vectored(&mut self, bufs: &mut [IoSlice<'_>]) -> Result<(), Error>
write_all_vectored)Auto Trait Implementations§
impl Freeze for Session
impl !RefUnwindSafe for Session
impl Send for Session
impl Sync for Session
impl Unpin for Session
impl !UnwindSafe for Session
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
Source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
Source§impl<T> ExecutableCommand for T
impl<T> ExecutableCommand for T
Source§fn execute(&mut self, command: impl Command) -> Result<&mut T, Error>
fn execute(&mut self, command: impl Command) -> Result<&mut T, Error>
Executes the given command directly.
The given command its ANSI escape code will be written and flushed onto Self.
§Arguments
-
The command that you want to execute directly.
§Example
use std::io;
use crossterm::{ExecutableCommand, style::Print};
fn main() -> io::Result<()> {
// will be executed directly
io::stdout()
.execute(Print("sum:\n".to_string()))?
.execute(Print(format!("1 + 1= {} ", 1 + 1)))?;
Ok(())
// ==== Output ====
// sum:
// 1 + 1 = 2
}Have a look over at the Command API for more details.
§Notes
- In the case of UNIX and Windows 10, ANSI codes are written to the given ‘writer’.
- In case of Windows versions lower than 10, a direct WinAPI call will be made.
The reason for this is that Windows versions lower than 10 do not support ANSI codes,
and can therefore not be written to the given
writer. Therefore, there is no difference between execute and queue for those old Windows versions.
Source§impl<T> Instrument for T
impl<T> Instrument for T
Source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
Source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
Source§impl<T> QueueableCommand for T
impl<T> QueueableCommand for T
Source§fn queue(&mut self, command: impl Command) -> Result<&mut T, Error>
fn queue(&mut self, command: impl Command) -> Result<&mut T, Error>
Queues the given command for further execution.
Queued commands will be executed in the following cases:
- When
flushis called manually on the given type implementingio::Write. - The terminal will
flushautomatically if the buffer is full. - Each line is flushed in case of
stdout, because it is line buffered.
§Arguments
-
The command that you want to queue for later execution.
§Examples
use std::io::{self, Write};
use crossterm::{QueueableCommand, style::Print};
fn main() -> io::Result<()> {
let mut stdout = io::stdout();
// `Print` will executed executed when `flush` is called.
stdout
.queue(Print("foo 1\n".to_string()))?
.queue(Print("foo 2".to_string()))?;
// some other code (no execution happening here) ...
// when calling `flush` on `stdout`, all commands will be written to the stdout and therefore executed.
stdout.flush()?;
Ok(())
// ==== Output ====
// foo 1
// foo 2
}Have a look over at the Command API for more details.
§Notes
- In the case of UNIX and Windows 10, ANSI codes are written to the given ‘writer’.
- In case of Windows versions lower than 10, a direct WinAPI call will be made.
The reason for this is that Windows versions lower than 10 do not support ANSI codes,
and can therefore not be written to the given
writer. Therefore, there is no difference between execute and queue for those old Windows versions.
Source§impl<W> SynchronizedUpdate for W
impl<W> SynchronizedUpdate for W
Source§fn sync_update<T>(
&mut self,
operations: impl FnOnce(&mut W) -> T,
) -> Result<T, Error>
fn sync_update<T>( &mut self, operations: impl FnOnce(&mut W) -> T, ) -> Result<T, Error>
Performs a set of actions within a synchronous update.
Updates will be suspended in the terminal, the function will be executed against self, updates will be resumed, and a flush will be performed.
§Arguments
-
Function
A function that performs the operations that must execute in a synchronized update.
§Examples
use std::io;
use crossterm::{ExecutableCommand, SynchronizedUpdate, style::Print};
fn main() -> io::Result<()> {
let mut stdout = io::stdout();
stdout.sync_update(|stdout| {
stdout.execute(Print("foo 1\n".to_string()))?;
stdout.execute(Print("foo 2".to_string()))?;
// The effects of the print command will not be present in the terminal
// buffer, but not visible in the terminal.
std::io::Result::Ok(())
})?;
// The effects of the commands will be visible.
Ok(())
// ==== Output ====
// foo 1
// foo 2
}§Notes
This command is performed only using ANSI codes, and will do nothing on terminals that do not support ANSI codes, or this specific extension.
When rendering the screen of the terminal, the Emulator usually iterates through each visible grid cell and renders its current state. With applications updating the screen a at higher frequency this can cause tearing.
This mode attempts to mitigate that.
When the synchronization mode is enabled following render calls will keep rendering the last rendered state. The terminal Emulator keeps processing incoming text and sequences. When the synchronized update mode is disabled again the renderer may fetch the latest screen buffer state again, effectively avoiding the tearing effect by unintentionally rendering in the middle a of an application screen update.