dtas.git  about / heads / tags
duct tape audio suite for *nix
blob aae8c9d716946ea0a2813badc4065f96535a0e67 1164 bytes (raw)
$ git show v0.16.1:lib/dtas/unix_client.rb	# shows this blob on the CLI

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
 
# Copyright (C) 2013-2016 all contributors <dtas-all@nongnu.org>
# License: GPL-3.0+ <https://www.gnu.org/licenses/gpl-3.0.txt>
# frozen_string_literal: true
require_relative '../dtas'
require_relative 'xs'
require 'socket'
require 'io/wait'
require 'shellwords'

# a socket connection used by dtas-player clients (e.g. dtas-ctl)
class DTAS::UNIXClient # :nodoc:
  attr_reader :to_io

  include DTAS::XS

  def self.default_path
    (ENV["DTAS_PLAYER_SOCK"] || File.expand_path("~/.dtas/player.sock"))
  end

  def initialize(path = self.class.default_path)
    @to_io = Socket.new(:UNIX, :SEQPACKET, 0)
    @to_io.connect(Socket.pack_sockaddr_un(path))
  end

  def req_start(args)
    args = xs(args) if Array === args
    @to_io.send(args, Socket::MSG_EOR)
  end

  def req_ok(args, timeout = nil)
    res = req(args, timeout)
    res == "OK" or raise "Unexpected response: #{res}"
    res
  end

  def req(args, timeout = nil)
    req_start(args)
    res_wait(timeout)
  end

  def res_wait(timeout = nil)
    IO.select([@to_io], nil, nil, timeout)
    nr = @to_io.nread
    nr > 0 or raise EOFError, "unexpected EOF from server"
    @to_io.recv(nr)
  end
end

git clone git://80x24.org/dtas.git
git clone https://80x24.org/dtas.git