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# Copyright DataStax, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
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 next(self.num_finished) >= self.num_queries:
self.event.set()
i = next(self.num_started)
if i <= self.num_queries:
key = "{0}-{1}".format(self.thread_num, i)
future = self.run_query(key, timeout=None)
future.add_callbacks(self.insert_next, self.insert_next)
def run(self):
self.start_profile()
if self.protocol_version >= 3:
concurrency = 1000
else:
concurrency = 100
for _ in range(min(concurrency, self.num_queries)):
self.insert_next()
self.event.wait()
self.finish_profile()
if __name__ == "__main__":
benchmark(Runner)
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