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()
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()
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):
'-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()
def __init__(self, bot: Bot):
self.bot = bot
self.channel_lock = MultiLock()
self.group_lock = MultiLock()
>>>
>>> _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()