Files
deb-python-cassandra-driver/benchmarks/single_thread_callback_full_pipeline.py
2013-06-28 14:22:44 -05:00

39 lines
859 B
Python

from base import benchmark
import logging
from itertools import count
from threading import Event
log = logging.getLogger(__name__)
initial = object()
def execute(session, query, values, num_queries):
num_started = count()
num_finished = count()
event = Event()
def handle_error(exc):
log.error("Error on insert: %r", exc)
def insert_next(previous_result):
current_num = num_started.next()
if previous_result is not initial:
num = next(num_finished)
if num >= num_queries:
event.set()
if current_num <= num_queries:
future = session.execute_async(query, values)
future.add_callbacks(insert_next, handle_error)
for i in range(120):
insert_next(initial)
event.wait()
if __name__ == "__main__":
benchmark(execute)