PTY

Inherits: Node < Object

Linux and macOS only.

Node for forking processes (e.g. bash, nodejs, python) with pseudoterminal file descriptors. Can be used with the Terminal node to get an actual shell.

Not currently supported on Windows, but it could be in the future using ConPTY or WinPTY. See issue #25.

Overview

PTY Diagram “PTY Diagram” is a derivative of Termios-script-diagram.svg by Krishnavedala, used under CC0.

Properties

Type Name Default
NodePath terminal_path None
int cols 80
int rows 24
Dictionary env { COLORTERM = "truecolor", TERM = "xterm-256color" }
bool use_os_env true

Methods

Returns Signature
Error fork ( String file=$SHELL, PoolStringArray args=[], String cwd=$PWD, int cols=80, int rows=24 )
void kill ( int signum )
Error open ( int cols=80, int rows=24 )
void resize ( int cols, int rows )
void resizev ( Vector2 size )
void write ( String|PoolByteArray data )

Signals

  • data_received ( PoolByteArray data )

    Emitted when data is read from the pseudoterminal master device.

  • exited ( int exit_code, int signum )

    Emitted when the child program exits. exit_code is the exit status of the child program and signum is the number of the signal that terminated the child program.

Enumerations

enum Signal:

  • SIGHUP = 1 — Hangup.
  • SIGINT = 2 — Terminal interrupt signal.
  • SIGQUIT = 3 — Terminal quit signal.
  • SIGILL = 4 — Illegal instruction.
  • SIGTRAP = 5 — Trace/breakpoint trap.
  • SIGABRT = 6 — Process abort signal.
  • SIGFPE = 8 — Erroneous arithmetic operation.
  • SIGKILL = 9 — Kill (cannot be caught or ignored).
  • SIGSEGV = 11 — Invalid memory reference.
  • SIGPIPE = 13 — Write on a pipe with no one to read it.
  • SIGALRM = 14 — Alarm clock.
  • SIGTERM = 15 — Termination signal.

Property Descriptions

NodePath terminal_path

   
Default None
Setter set_terminal_path(value)
Getter None

NodePath to a Terminal. Setting this path will automatically connect the appropriate signals of both nodes for standard operation. It will also disconnected the signals of the previously set terminal, if any.

  • int cols

       
    Default 80
    Setter set_cols(value)
    Getter None

    The column size in characters.

  • int rows

       
    Default 24
    Setter set_rows(value)
    Getter None

    The row size in characters.

  • Dictionary env

       
    Default { COLORTERM = "truecolor", TERM = "xterm-256color" }
    Setter None
    Getter None

    Environment variables to be set for the child program.

  • bool use_os_env

       
    Default true
    Setter None
    Getter None

    If true the environment variables from env will be merged with the environment variables of the current program (i.e. Godot), with the variables from env taking precedence over the environment variables of the current program.

Method Descriptions

  • Error fork ( String file=$SHELL, PoolStringArray args=[], String cwd=$PWD, int cols=80, int rows=24 )

    Opens a pseudoterminal and starts a new process using the program specified by file. file defaults to the value of the SHELL environment variable, falling back to sh. The arguments specified in args are passed to the program. cwd is the directory in which the program will be executed. Defaults to the working directory of the current program (typically the project directory, when running from editor). cols is the initial number of columns and rows is the initial number of rows. Returns OK if successful.

    See also Godot’s OS.execute() method.

  • void kill ( int signum=1 )

    Sends the specified signal (signum) to the PTY’s child process, if any. Defaults to 1 (SIGHUP).

    See also Godot’s OS.kill() method.

  • Error open ( int cols=80, int rows=24 )

    Opens a pseudoterminal but does not start any process. Returns OK if successful.

  • void resize ( int cols, int rows )

    Resizes the dimensions of the pseudoterminal.

  • void resizev ( Vector2 size )

    Same as resize, but accepts a Vector2 where x is cols and y is rows.