Files
deb-python-cassandra-driver/benchmarks/callback_full_pipeline.py
2014-02-04 09:41:24 -08:00

47 lines
1.1 KiB
Python

import logging
from itertools import count
from threading import Event
from base import benchmark, BenchmarkThread
log = logging.getLogger(__name__)
sentinel = object()
class Runner(BenchmarkThread):
def __init__(self, *args, **kwargs):
BenchmarkThread.__init__(self, *args, **kwargs)
self.num_started = count()
self.num_finished = count()
self.event = Event()
def insert_next(self, previous_result=sentinel):
if previous_result is not sentinel:
if isinstance(previous_result, BaseException):
log.error("Error on insert: %r", previous_result)
if self.num_finished.next() >= self.num_queries:
self.event.set()
if self.num_started.next() <= self.num_queries:
future = self.session.execute_async(self.query, self.values)
future.add_callbacks(self.insert_next, self.insert_next)
def run(self):
self.start_profile()
for _ in xrange(min(120, self.num_queries)):
self.insert_next()
self.event.wait()
self.finish_profile()
if __name__ == "__main__":
benchmark(Runner)