Core Library0.xAPI Reference

Choose documentation 3

v0.1.1

Current version

v0.1.1
English

Early release libtmux is released, and its APIs may still change between releases. This site's structure and URLs may change too.

method libtmux-ruby v0.1.1

Server.open_control

Behavior: Control connections.

Source and package
Qualified name
LibTmux::Async::Server#open_control
Module
LibTmux::Async
Declared in
Server
Package
libtmux-async
Source
gems/libtmux-async/lib/libtmux/async/server.rb

Description#

Behavior contract: Control connections.

Examples#

Open a control connection inside an Async scope and read the notification tmux sends when a window is renamed. Use Ruby 3.3 or newer with Bundler, and tmux 3.3a or newer, on Unix with /bin/cat and /bin/sh available. In an empty directory, save this Gemfile:

source "https://rubygems.org"
gem "libtmux-async", "0.1.1"

Save this complete program as async_control.rb. Its Server.start() block owns a private tmux server and stops it on exit, including after an error. View source

# frozen_string_literal: true
begin
# docs:begin main
require "libtmux"
require "libtmux/async"
LibTmux::Server.start do |server|
session = server.new_session(name: "work", command: ["/bin/cat"])
window = session.list_windows.fetch(0)
Async do |parent|
LibTmux::Async.open(parent: parent, server: server) do |scope|
scope.server.open_control(session: session.ref) do |control|
reply = control.exchange("display-message -p ready", timeout: 5)
puts "reply: #{reply.blocks.last.body.strip}"
events = control.events
window.rename("renamed")
event = events.next(timeout: 5) until event&.raw&.start_with?("%window-renamed")
puts "event: #{event.raw.strip}"
end
end
end.wait
end
# docs:end main
rescue StandardError => error
warn "#{error.class}: #{error.message}"
exit 1
end

Install the gem and run the program. An operation or cleanup error makes it exit unsuccessfully:

Terminal window
$ bundle install && \
bundle exec ruby async_control.rb

Expected output:

reply: ready
event: %window-renamed @0 renamed
Type parameters
  • T # for open_control(session, reconnect, kwargs) [overload 1]

Parameters
Esc

Type to search.

Reference previewOpen reference