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| | # Copyright (C) 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)
@to_io.wait_readable(timeout)
nr = @to_io.nread
nr > 0 or raise EOFError, "unexpected EOF from server"
@to_io.recv(nr)
end
end
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