def _log_method(self, context, args, kwargs):
method = helpers.get_current_method(context)
param_gen = itertools.chain(
(six.text_type(arg) for arg in args),
(u'{0} => {1}'.format(name, value)
for name, value in six.iteritems(kwargs)))
params_str = u', '.join(param_gen)
method_name = '::'.join((method.declaring_type.name, method.name))
thread_id = helpers.get_current_thread_id()
caller_str = ''
caller_ctx = helpers.get_caller_context(context)
if caller_ctx is not None:
frame = stack_trace.compose_stack_frame(caller_ctx)
if frame['location']:
caller_str = ' called from ' + stack_trace.format_frame(frame)
LOG.trace(u'{thread}: Begin execution {method}({params}){caller}'
.format(thread=thread_id, method=method_name,
params=params_str, caller=caller_str))
try:
def log_result(result):
LOG.trace(
u'{thread}: End execution {method} with result '
u'{result}'.format(
thread=thread_id, method=method_name, result=result))
yield log_result
except Exception as e:
LOG.trace(
u'{thread}: End execution {method} with exception '
u'{exc}'.format(thread=thread_id, method=method_name, exc=e))
raise
def _acquire_method_lock(self, method, this):
method_id = id(method)
if method.is_static:
this_id = id(method.declaring_type)
else:
this_id = this.object_id
thread_id = helpers.get_current_thread_id()
while True:
event, event_owner = self._locks.get(
(method_id, this_id), (None, None))
if event:
if event_owner == thread_id:
event = None
break
else:
event.wait()
else:
event = eventlet.event.Event()
self._locks[(method_id, this_id)] = (event, thread_id)
break
try:
yield
finally:
if event is not None:
del self._locks[(method_id, this_id)]
event.send()
def _acquire_method_lock(self, method, this):
method_id = id(method)
if method.is_static:
this_id = id(method.declaring_type)
else:
this_id = this.object_id
thread_id = helpers.get_current_thread_id()
while True:
event, event_owner = self._locks.get((method_id, this_id),
(None, None))
if event:
if event_owner == thread_id:
event = None
break
else:
event.wait()
else:
event = eventlet.event.Event()
self._locks[(method_id, this_id)] = (event, thread_id)
break
try:
yield
finally:
if event is not None:
del self._locks[(method_id, this_id)]
event.send()
def _log_method(self, context, args, kwargs):
method = helpers.get_current_method(context)
param_gen = itertools.chain(
(six.text_type(arg) for arg in args),
(u'{0} => {1}'.format(name, value)
for name, value in kwargs.items()))
params_str = u', '.join(param_gen)
method_name = '::'.join((method.declaring_type.name, method.name))
thread_id = helpers.get_current_thread_id()
caller_str = ''
caller_ctx = helpers.get_caller_context(context)
if caller_ctx is not None:
frame = stack_trace.compose_stack_frame(caller_ctx)
if frame['location']:
caller_str = ' called from ' + stack_trace.format_frame(frame)
LOG.trace(u'{thread}: Begin execution {method}({params}){caller}'
.format(thread=thread_id, method=method_name,
params=params_str, caller=caller_str))
try:
def log_result(result):
LOG.trace(
u'{thread}: End execution {method} with result '
u'{result}'.format(
thread=thread_id, method=method_name, result=result))
yield log_result
except Exception as e:
LOG.trace(
u'{thread}: End execution {method} with exception '
u'{exc}'.format(thread=thread_id, method=method_name, exc=e))
raise
def _acquire_method_lock(self, func, this):
method_id = id(func)
if isinstance(this, dsl_types.MuranoClass):
this_id = id(this)
else:
this_id = this.object_id
thread_id = helpers.get_current_thread_id()
while True:
event, event_owner = self._locks.get(
(method_id, this_id), (None, None))
if event:
if event_owner == thread_id:
event = None
break
else:
event.wait()
else:
event = eventlet.event.Event()
self._locks[(method_id, this_id)] = (event, thread_id)
break
try:
yield
finally:
if event is not None:
del self._locks[(method_id, this_id)]
event.send()
def _log_method(self, context, args, kwargs):
method = helpers.get_current_method(context)
param_gen = itertools.chain(
(six.text_type(arg) for arg in args),
(u"{0} => {1}".format(name, value) for name, value in six.iteritems(kwargs)),
)
params_str = u", ".join(param_gen)
method_name = "{0}::{1}".format(method.murano_class.name, method.name)
thread_id = helpers.get_current_thread_id()
caller_str = ""
caller_ctx = helpers.get_caller_context(context)
if caller_ctx is not None:
frame = stack_trace.compose_stack_frame(caller_ctx)
if frame["location"]:
caller_str = " called from " + stack_trace.format_frame(frame)
LOG.trace(
u"{thread}: Begin execution {method}({params}){caller}".format(
thread=thread_id, method=method_name, params=params_str, caller=caller_str
)
)
try:
def log_result(result):
LOG.trace(
u"{thread}: End execution {method} with result "
u"{result}".format(thread=thread_id, method=method_name, result=result)
)
yield log_result
except Exception as e:
LOG.trace(
u"{thread}: End execution {method} with exception "
u"{exc}".format(thread=thread_id, method=method_name, exc=e)
)
raise
def _acquire_method_lock(self, method, this, arg_val_dict):
if this is None:
if not arg_val_dict:
# if neither "this" nor argument values are set then no
# locking is needed
key = None
else:
# if only the argument values are passed then find the lock
# list only by the method
key = (None, id(method))
else:
if method.is_static:
# find the lock list by the type and method
key = (id(method.declaring_type), id(method))
else:
# find the lock list by the object and method
key = (this.object_id, id(method))
thread_id = helpers.get_current_thread_id()
while True:
event, event_owner = None, None
if key is None: # no locking needed
break
lock_list = self._locks.setdefault(key, [])
# lock list contains a list of tuples:
# first item of each tuple is a dict with the values of locking
# arguments (it is used for argument values comparison),
# second item is an event to wait on,
# third one is the owner thread id
# If this lock list is empty it means no locks on this object and
# method at all.
for arg_vals, l_event, l_event_owner in lock_list:
if arg_vals == arg_val_dict:
event = l_event
event_owner = l_event_owner
break
if event:
if event_owner == thread_id:
# this means a re-entrant lock: the tuple with the same
# value of the first element exists in the list, but it was
# acquired by the same green thread. We may proceed with
# the call in this case
event = None
break
else:
event.wait()
else:
# this means either the lock list was empty or didn't contain a
# tuple with the first element equal to arg_val_dict.
# Then let's acquire a lock, i.e. create a new tuple and place
# it into the list
event = eventlet.event.Event()
event_owner = thread_id
lock_list.append((arg_val_dict, event, event_owner))
break
try:
yield
finally:
if event is not None:
lock_list.remove((arg_val_dict, event, event_owner))
if len(lock_list) == 0:
del self._locks[key]
event.send()
def _acquire_method_lock(self, method, this, arg_val_dict):
if this is None:
if not arg_val_dict:
# if neither "this" nor argument values are set then no
# locking is needed
key = None
else:
# if only the argument values are passed then find the lock
# list only by the method
key = (None, id(method))
else:
if method.is_static:
# find the lock list by the type and method
key = (id(method.declaring_type), id(method))
else:
# find the lock list by the object and method
key = (this.object_id, id(method))
thread_id = helpers.get_current_thread_id()
while True:
event, event_owner = None, None
if key is None: # no locking needed
break
lock_list = self._locks.setdefault(key, [])
# lock list contains a list of tuples:
# first item of each tuple is a dict with the values of locking
# arguments (it is used for argument values comparison),
# second item is an event to wait on,
# third one is the owner thread id
# If this lock list is empty it means no locks on this object and
# method at all.
for arg_vals, l_event, l_event_owner in lock_list:
if arg_vals == arg_val_dict:
event = l_event
event_owner = l_event_owner
break
if event:
if event_owner == thread_id:
# this means a re-entrant lock: the tuple with the same
# value of the first element exists in the list, but it was
# acquired by the same green thread. We may proceed with
# the call in this case
event = None
break
else:
event.wait()
else:
# this means either the lock list was empty or didn't contain a
# tuple with the first element equal to arg_val_dict.
# Then let's acquire a lock, i.e. create a new tuple and place
# it into the list
event = eventlet.event.Event()
event_owner = thread_id
lock_list.append((arg_val_dict, event, event_owner))
break
try:
yield
finally:
if event is not None:
lock_list.remove((arg_val_dict, event, event_owner))
if len(lock_list) == 0:
del self._locks[key]
event.send()
