def __call__(self, req):
taskid = req.headers['X-Neutron-Profiler-taskid']
action = req.headers['X-Neutron-Profiler-Action']
if action == 'start':
# (anilvenkata): save self.taskid, helpful in throwing error
# if stop called without start
GreenletProfiler.set_clock_type('cpu')
GreenletProfiler.start()
LOG.debug("Trace Profiler.start profiling %s ", os.getpid())
elif action == 'stop':
GreenletProfiler.stop()
LOG.debug("Trace Profiler.stop profiling %s ", os.getpid())
stats = GreenletProfiler.get_func_stats()
trace_path = os.path.join(cfg.CONF.trace_profiler.trace_path,
taskid)
utils.ensure_dir(trace_path)
trace_file = os.path.join(trace_path, str(os.getpid()))
LOG.debug("Trace Profiler.writing to trace file %s ", trace_file)
stats.save(trace_file, cfg.CONF.trace_profiler.trace_format)
GreenletProfiler.clear_stats()
else:
LOG.info(
"Invalid profiler action %(action)s with "
" taskid %(taskid)s", {
"action": action,
"taskid": taskid
})
def test_ensure_dir_calls_makedirs(self, makedirs):
file.ensure_dir("/etc/create/directory")
makedirs.assert_called_once_with("/etc/create/directory", 0o755)
def test_ensure_dir_no_fail_if_exists(self, makedirs):
error = OSError()
error.errno = errno.EEXIST
makedirs.side_effect = error
file.ensure_dir("/etc/create/concurrently")
def test_ensure_dir_calls_makedirs(self, makedirs):
file.ensure_dir("/etc/create/directory")
makedirs.assert_called_once_with("/etc/create/directory", 0o755)
def test_ensure_dir_no_fail_if_exists(self, makedirs):
error = OSError()
error.errno = errno.EEXIST
makedirs.side_effect = error
file.ensure_dir("/etc/create/concurrently")
def get_profiler_sock_path(cls):
utils.ensure_dir(cfg.CONF.trace_profiler.sock_path)
return os.path.join(cfg.CONF.trace_profiler.sock_path,
str(os.getpid()))
