def __init__(self):
self._global = []
self._thread_context_lock = ThreadLock()
self._thread_context = thread_local()
self._greenlet_context_lock = GreenletRLock()
self._greenlet_context = greenlet_local()
self._cache = {}
self._stackop = get_iterator_next_method(count())
def __init__(self):
self._global = []
self._thread_context_lock = ThreadLock()
self._thread_context = thread_local()
self._greenlet_context_lock = GreenletRLock()
self._greenlet_context = greenlet_local()
self._cache = {}
self._stackop = get_iterator_next_method(count())
class ContextStackManager(object):
"""Helper class for context objects that manages a stack of
objects.
"""
def __init__(self):
self._global = []
self._thread_context_lock = ThreadLock()
self._thread_context = thread_local()
self._greenlet_context_lock = GreenletRLock()
self._greenlet_context = greenlet_local()
self._cache = {}
self._stackop = get_iterator_next_method(count())
def iter_context_objects(self):
"""Returns an iterator over all objects for the combined
application and context cache.
"""
use_gevent = is_gevent_enabled()
tid = greenlet_get_ident() if use_gevent else thread_get_ident()
objects = self._cache.get(tid)
if objects is None:
if len(self._cache) > _MAX_CONTEXT_OBJECT_CACHE:
self._cache.clear()
objects = self._global[:]
objects.extend(getattr(self._thread_context, 'stack', ()))
if use_gevent:
objects.extend(getattr(self._greenlet_context, 'stack', ()))
objects.sort(reverse=True)
objects = [x[1] for x in objects]
self._cache[tid] = objects
return iter(objects)
def push_greenlet(self, obj):
self._greenlet_context_lock.acquire()
try:
self._cache.pop(greenlet_get_ident(), None) # remote chance to conflict with thread ids
item = (self._stackop(), obj)
stack = getattr(self._greenlet_context, 'stack', None)
if stack is None:
self._greenlet_context.stack = [item]
else:
stack.append(item)
finally:
self._greenlet_context_lock.release()
def pop_greenlet(self):
self._greenlet_context_lock.acquire()
try:
self._cache.pop(greenlet_get_ident(), None) # remote chance to conflict with thread ids
stack = getattr(self._greenlet_context, 'stack', None)
assert stack, 'no objects on stack'
return stack.pop()[1]
finally:
self._greenlet_context_lock.release()
def push_thread(self, obj):
self._thread_context_lock.acquire()
try:
self._cache.pop(thread_get_ident(), None)
item = (self._stackop(), obj)
stack = getattr(self._thread_context, 'stack', None)
if stack is None:
self._thread_context.stack = [item]
else:
stack.append(item)
finally:
self._thread_context_lock.release()
def pop_thread(self):
self._thread_context_lock.acquire()
try:
self._cache.pop(thread_get_ident(), None)
stack = getattr(self._thread_context, 'stack', None)
assert stack, 'no objects on stack'
return stack.pop()[1]
finally:
self._thread_context_lock.release()
def push_application(self, obj):
self._global.append((self._stackop(), obj))
self._cache.clear()
def pop_application(self):
assert self._global, 'no objects on application stack'
popped = self._global.pop()[1]
self._cache.clear()
return popped
class ContextStackManager(object):
"""Helper class for context objects that manages a stack of
objects.
"""
def __init__(self):
self._global = []
self._thread_context_lock = ThreadLock()
self._thread_context = thread_local()
self._greenlet_context_lock = GreenletRLock()
self._greenlet_context = greenlet_local()
self._cache = {}
self._stackop = get_iterator_next_method(count())
def iter_context_objects(self):
"""Returns an iterator over all objects for the combined
application and context cache.
"""
use_gevent = is_gevent_enabled()
tid = greenlet_get_ident() if use_gevent else thread_get_ident()
objects = self._cache.get(tid)
if objects is None:
if len(self._cache) > _MAX_CONTEXT_OBJECT_CACHE:
self._cache.clear()
objects = self._global[:]
objects.extend(getattr(self._thread_context, 'stack', ()))
if use_gevent:
objects.extend(getattr(self._greenlet_context, 'stack', ()))
objects.sort(reverse=True)
objects = [x[1] for x in objects]
self._cache[tid] = objects
return iter(objects)
def push_greenlet(self, obj):
self._greenlet_context_lock.acquire()
try:
self._cache.pop(greenlet_get_ident(), None) # remote chance to conflict with thread ids
item = (self._stackop(), obj)
stack = getattr(self._greenlet_context, 'stack', None)
if stack is None:
self._greenlet_context.stack = [item]
else:
stack.append(item)
finally:
self._greenlet_context_lock.release()
def pop_greenlet(self):
self._greenlet_context_lock.acquire()
try:
self._cache.pop(greenlet_get_ident(), None) # remote chance to conflict with thread ids
stack = getattr(self._greenlet_context, 'stack', None)
assert stack, 'no objects on stack'
return stack.pop()[1]
finally:
self._greenlet_context_lock.release()
def push_thread(self, obj):
self._thread_context_lock.acquire()
try:
self._cache.pop(thread_get_ident(), None)
item = (self._stackop(), obj)
stack = getattr(self._thread_context, 'stack', None)
if stack is None:
self._thread_context.stack = [item]
else:
stack.append(item)
finally:
self._thread_context_lock.release()
def pop_thread(self):
self._thread_context_lock.acquire()
try:
self._cache.pop(thread_get_ident(), None)
stack = getattr(self._thread_context, 'stack', None)
assert stack, 'no objects on stack'
return stack.pop()[1]
finally:
self._thread_context_lock.release()
def push_application(self, obj):
self._global.append((self._stackop(), obj))
self._cache.clear()
def pop_application(self):
assert self._global, 'no objects on application stack'
popped = self._global.pop()[1]
self._cache.clear()
return popped