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Contents
# frozen_string_literal: true
require 'singleton'
GLib.load_class :MainLoop
module GLib
# Overrides for GMainLoop, GLib's event loop
class MainLoop
# Class encapsulationg logic for running an idle handler to make Ruby code
# run during GLib's event loop.
class ThreadEnabler
include Singleton
FRAMERATE = 25
DEFAULT_TIMEOUT = 1000 / FRAMERATE
def initialize(timeout = DEFAULT_TIMEOUT)
@timeout = timeout
end
def setup_idle_handler
@handler_id ||=
GLib.timeout_add(GLib::PRIORITY_DEFAULT, @timeout, &handler_proc)
end
private
def handler_proc
proc do
::Thread.pass
true
end
end
end
EXCEPTIONS = []
RUNNING_LOOPS = []
setup_instance_method :run
def run_with_thread_enabler
case RUBY_ENGINE
when 'jruby'
when 'rbx'
else # 'ruby' most likely
ThreadEnabler.instance.setup_idle_handler
end
RUNNING_LOOPS << self
result = run_without_thread_enabler
ex = EXCEPTIONS.shift
RUNNING_LOOPS.pop
raise ex if ex
result
end
def self.handle_exception(ex)
raise ex unless (current_loop = RUNNING_LOOPS.last)
EXCEPTIONS << ex
current_loop.quit
end
alias_method :run_without_thread_enabler, :run
alias_method :run, :run_with_thread_enabler
end
end
Signal.trap 'INT' do
GLib::MainLoop.handle_exception(Interrupt.new)
end
Version data entries
7 entries across 7 versions & 1 rubygems