Ejemplo n.º 1
0
def _runone(func, lockname, lockgroup, basedir, *args, **kwargs):
    ''' run one, AND ONLY ONE, instance (respect locking)

		>>> 
		>>> _runone(print, 'lock', 'locks', '.', 'hello world')
		>>> 
	'''
    lock = MultiLock(lockname, lockgroup, basedir)
    if lock.acquire():
        func(*args, **kwargs)
        lock.release()
Ejemplo n.º 2
0
def _runone(func, lockname, lockgroup, basedir, *args, **kwargs):
	''' run one, AND ONLY ONE, instance (respect locking)

		>>> 
		>>> _runone(print, 'lock', 'locks', '.', 'hello world')
		>>> 
	'''
	lock = MultiLock(lockname, lockgroup, basedir)
	if lock.acquire():
		func(*args, **kwargs)
		lock.release()
Ejemplo n.º 3
0
        s.shutdown(socket.SHUT_RD)
    except (socket.timeout, OSError):
        return None

    return time.time() - t


async def send_to_changelog(guild: Guild, message: str):
    channel: Optional[TextChannel] = guild.get_channel(await run_in_thread(Settings.get, int, "logging_changelog", -1))
    if channel is not None:
        await channel.send(message)


event_handlers = {}
cog_instances = {}
handler_lock = MultiLock()


async def call_event_handlers(event: str, *args, identifier=None, prepare=None):
    if identifier is not None:
        await handler_lock.acquire((event, identifier))

    if prepare is not None:
        args = await prepare()
        if args is None:
            if identifier is not None:
                handler_lock.release((event, identifier))
            return False

    for handler in event_handlers.get(event, []):
        if not await handler(*args):
Ejemplo n.º 4
0
                 '-g',
                 dest="lockgroup",
                 default='.locks',
                 help="the lockgroup, a collection of locks independent locks")
    p.add_option(
        '--basedir',
        '-d',
        dest="basedir",
        default='.',
        help="the base directory where the lock files should be written")
    p.add_option(
        '--wait',
        '-w',
        dest="wait",
        default=None,
        help=
        "optional, wait (up till the number of seconds specified) for all locks to complete in the lockgroup"
    )
    options, args = p.parse_args()

    if options.wait:
        lock = MultiLock(options.lockname, options.lockgroup, options.basedir)
        lock.wait(options.wait)
        sys.exit()

    @runone(options.lockname, options.lockgroup, options.basedir)
    def _main():
        subprocess.call(args)

    _main()
Ejemplo n.º 5
0
 def __init__(self, bot: Bot):
     self.bot = bot
     self.channel_lock = MultiLock()
     self.group_lock = MultiLock()
Ejemplo n.º 6
0
		>>> 
		>>> _runone(print, 'lock', 'locks', '.', 'hello world')
		>>> 
	'''
	lock = MultiLock(lockname, lockgroup, basedir)
	if lock.acquire():
		func(*args, **kwargs)
		lock.release()


if __name__ == '__main__':

	p = optparse.OptionParser('usage: %prog [options] cmd [args]')
	p.add_option('--lockname', '-l', dest="lockname", default='lock', help="the lock name, should be unique for this instance")
	p.add_option('--lockgroup', '-g', dest="lockgroup", default='.locks', help="the lockgroup, a collection of locks independent locks")
	p.add_option('--basedir', '-d', dest="basedir", default='.', help="the base directory where the lock files should be written")
	p.add_option('--wait', '-w', dest="wait", default=None, help="optional, wait (up till the number of seconds specified) for all locks to complete in the lockgroup")
	options, args = p.parse_args()

	if options.wait:
		lock = MultiLock(options.lockname, options.lockgroup, options.basedir)
		lock.wait(options.wait)
		sys.exit()
		
	@runone(options.lockname, options.lockgroup, options.basedir)
	def _main():
		subprocess.call(args)

	_main()