def start(self, *argc):
"""
@param argc:
@type argc:
"""
if self.verbose:
console("task_start", self.object_id, color="magenta")
if not self.m_crypto_user_object_id:
raise TaskException("start: no crypto_user_object_id set")
self.save_callable(argc)
rs = RedisServer("crypto_taskworker", verbose=self.verbose)
def taskdone(taskid):
"""
@type taskid: str
"""
if taskid is None:
return
if self.verbose:
console("taskdone", taskid, source_code_link(), color="magenta")
if taskid == self.object_id:
self.load()
self.tasksubscription = rs.event_subscribe("taskdone:" + str(self.object_id), taskdone)
rs.list_push("tasks", self.object_id)
rs.event_emit("runtasks", self.get_serverconfig().get_namespace())
def join(self, max_wait_seconds=None):
"""
@type max_wait_seconds: float, None
"""
try:
if self.tasksubscription is None:
raise TaskException("task not started")
rs = RedisServer("crypto_taskworker", verbose=self.verbose)
try:
if max_wait_seconds:
start = time.time()
runtime = time.time() - start
while runtime < max_wait_seconds:
if self.tasksubscription.is_alive():
time.sleep(0.1)
rs.event_emit("runtasks", self.get_serverconfig().get_namespace())
runtime = time.time() - start
else:
break
if runtime > max_wait_seconds:
raise RedisEventWaitTimeout()
else:
while self.tasksubscription.is_alive():
time.sleep(0.1)
rs.event_emit("runtasks", self.get_serverconfig().get_namespace())
except RedisEventWaitTimeout:
object_name = self.human_object_name(self.object_id)
raise TaskTimeOut(str(object_name) + " timed out")
if self.m_task_exception is not None:
if len(self.m_task_exception) > 0:
major_info = console_saved_exception(self.m_task_exception, False)
excclass = str(major_info[0]).strip().split(".")
if len(excclass) > 1:
excclass = excclass[1].strip("'>")
exc = TaskExecuteException(major_info)
major_info[0] = excclass
exc.verbose = self.verbose
globalvars = globals()
if excclass in globalvars:
raise globalvars[excclass]("\n\n" + "\n".join(major_info))
else:
raise exc
return True
finally:
if self.object_id is not None:
self.delete(delete_from_datastore=False)
