CONF = cfg.CONF
-def _output_serializer_main(filename, queue):
- '''entrypoint for the singleton subprocess writing to outfile
+def _output_serializer_main(filename, queue, config):
+ """entrypoint for the singleton subprocess writing to outfile
Use of this process enables multiple instances of a scenario without
messing up the output file.
- '''
- config = {}
- config["type"] = CONF.dispatcher.capitalize()
- config["file_path"] = filename
- dispatcher = DispatcherBase.get(config)
+ """
+ out_type = config['yardstick'].get('DEFAULT', {}).get('dispatcher', 'file')
+ conf = {
+ 'type': out_type.capitalize(),
+ 'file_path': filename
+ }
+
+ dispatcher = DispatcherBase.get(conf, config)
while True:
# blocks until data becomes available
def _execute_shell_command(command):
- '''execute shell script with error handling'''
+ """execute shell script with error handling"""
exitcode = 0
output = []
try:
def _single_action(seconds, command, queue):
- '''entrypoint for the single action process'''
+ """entrypoint for the single action process"""
log.debug("single action, fires after %d seconds (from now)", seconds)
time.sleep(seconds)
log.debug("single action: executing command: '%s'", command)
def _periodic_action(interval, command, queue):
- '''entrypoint for the periodic action process'''
+ """entrypoint for the periodic action process"""
log.debug("periodic action, fires every: %d seconds", interval)
time_spent = 0
while True:
@staticmethod
def get_cls(runner_type):
- '''return class of specified type'''
+ """return class of specified type"""
for runner in utils.itersubclasses(Runner):
if runner_type == runner.__execution_type__:
return runner
@staticmethod
def get_types():
- '''return a list of known runner type (class) names'''
+ """return a list of known runner type (class) names"""
types = []
for runner in utils.itersubclasses(Runner):
types.append(runner)
return types
@staticmethod
- def get(config):
+ def get(runner_cfg, config):
"""Returns instance of a scenario runner for execution type.
"""
# if there is no runner, start the output serializer subprocess
- if len(Runner.runners) == 0:
+ if not Runner.runners:
log.debug("Starting dump process file '%s'",
- config["output_filename"])
+ runner_cfg["output_filename"])
Runner.queue = multiprocessing.Queue()
Runner.dump_process = multiprocessing.Process(
target=_output_serializer_main,
name="Dumper",
- args=(config["output_filename"], Runner.queue))
+ args=(runner_cfg["output_filename"], Runner.queue, config))
Runner.dump_process.start()
- return Runner.get_cls(config["type"])(config, Runner.queue)
+ return Runner.get_cls(runner_cfg["type"])(runner_cfg, Runner.queue)
@staticmethod
def release_dump_process():
- '''Release the dumper process'''
+ """Release the dumper process"""
log.debug("Stopping dump process")
if Runner.dump_process:
Runner.queue.put('_TERMINATE_')
@staticmethod
def release(runner):
- '''Release the runner'''
+ """Release the runner"""
if runner in Runner.runners:
Runner.runners.remove(runner)
# if this was the last runner, stop the output serializer subprocess
- if len(Runner.runners) == 0:
+ if not Runner.runners:
Runner.release_dump_process()
@staticmethod
def terminate(runner):
- '''Terminate the runner'''
+ """Terminate the runner"""
if runner.process and runner.process.is_alive():
runner.process.terminate()
@staticmethod
def terminate_all():
- '''Terminate all runners (subprocesses)'''
+ """Terminate all runners (subprocesses)"""
log.debug("Terminating all runners")
# release dumper process as some errors before any runner is created
- if len(Runner.runners) == 0:
+ if not Runner.runners:
Runner.release_dump_process()
return
Runner.runners.append(self)
def run_post_stop_action(self):
- '''run a potentially configured post-stop action'''
+ """run a potentially configured post-stop action"""
if "post-stop-action" in self.config:
command = self.config["post-stop-action"]["command"]
log.debug("post stop action: command: '%s'", command)
self._run_benchmark(cls, "run", scenario_cfg, context_cfg)
def abort(self):
- '''Abort the execution of a scenario'''
+ """Abort the execution of a scenario"""
self.aborted.set()
def join(self, timeout=None):