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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
ThreadEnabler.instance.setup_idle_handler if RUBY_ENGINE == "ruby"
RUNNING_LOOPS << self
result = run_without_thread_enabler
exception = EXCEPTIONS.shift
RUNNING_LOOPS.pop
raise exception if exception
result
end
def self.handle_exception(exception)
current_loop = RUNNING_LOOPS.last
raise exception unless current_loop
EXCEPTIONS << exception
current_loop.quit
end
alias run_without_thread_enabler run
alias run run_with_thread_enabler
end
end
Signal.trap "INT" do
GLib::MainLoop.handle_exception(Interrupt.new)
end
Version data entries
10 entries across 10 versions & 1 rubygems