def do_release_write_lock(self):
self.condition.acquire()
try:
if self.current_sync_operation is not _threading.currentThread():
raise LockError("Synchronizer error - current thread doesnt "
"have the write lock")
# reset the current sync operation so
# another can get it
self.current_sync_operation = None
# tell everyone to get ready
self.condition.notifyAll()
finally:
# everyone go !!
self.condition.release()
python类currentThread()的实例源码
def do_release_write_lock(self):
self.condition.acquire()
try:
if self.current_sync_operation is not _threading.currentThread():
raise LockError("Synchronizer error - current thread doesnt "
"have the write lock")
# reset the current sync operation so
# another can get it
self.current_sync_operation = None
# tell everyone to get ready
self.condition.notifyAll()
finally:
# everyone go !!
self.condition.release()
def do_release_write_lock(self):
self.condition.acquire()
try:
if self.current_sync_operation is not _threading.currentThread():
raise LockError("Synchronizer error - current thread doesnt "
"have the write lock")
# reset the current sync operation so
# another can get it
self.current_sync_operation = None
# tell everyone to get ready
self.condition.notifyAll()
finally:
# everyone go !!
self.condition.release()
def __new__(cls, *args, **kw):
self = object.__new__(cls)
key = '_local__key', 'thread.local.' + str(id(self))
object.__setattr__(self, '_local__key', key)
object.__setattr__(self, '_local__args', (args, kw))
object.__setattr__(self, '_local__lock', RLock())
if (args or kw) and (cls.__init__ is object.__init__):
raise TypeError("Initialization arguments are not supported")
# We need to create the thread dict in anticipation of
# __init__ being called, to make sure we don't call it
# again ourselves.
dict = object.__getattribute__(self, '__dict__')
currentThread().__dict__[key] = dict
return self
def _patch(self):
key = object.__getattribute__(self, '_local__key')
d = currentThread().__dict__.get(key)
if d is None:
d = {}
currentThread().__dict__[key] = d
object.__setattr__(self, '__dict__', d)
# we have a new instance dict, so call out __init__ if we have
# one
cls = type(self)
if cls.__init__ is not object.__init__:
args, kw = object.__getattribute__(self, '_local__args')
cls.__init__(self, *args, **kw)
else:
object.__setattr__(self, '__dict__', d)
def loggingin():
t = threading.currentThread()
while getattr(t, "do_run", True):
for i in range(0, 4):
sys.stdout.write(load.__next__())
sys.stdout.flush()
if passedargs.loadmode:
if passedargs.loadmode == 0:
sys.stdout.write('\b\b\b')
else:
sys.stdout.write('\b\b')
else:
sys.stdout.write('\b\b\b')
time.sleep(0.5)
if not getattr(t, "do_run", True):
break
def do_acquire_write_lock(self, wait=True):
self.condition.acquire()
try:
# here, we are not a synchronous reader, and after returning,
# assuming waiting or immediate availability, we will be.
if wait:
# if another sync is working, wait
while self.current_sync_operation is not None:
self.condition.wait()
else:
# if another sync is working,
# we dont want to wait, so forget it
if self.current_sync_operation is not None:
return False
# establish ourselves as the current sync
# this indicates to other read/write operations
# that they should wait until this is None again
self.current_sync_operation = _threading.currentThread()
# now wait again for asyncs to finish
if self.async > 0:
if wait:
# wait
self.condition.wait()
else:
# we dont want to wait, so forget it
self.current_sync_operation = None
return False
def do_acquire_write_lock(self, wait = True):
self.condition.acquire()
try:
# here, we are not a synchronous reader, and after returning,
# assuming waiting or immediate availability, we will be.
if wait:
# if another sync is working, wait
while self.current_sync_operation is not None:
self.condition.wait()
else:
# if another sync is working,
# we dont want to wait, so forget it
if self.current_sync_operation is not None:
return False
# establish ourselves as the current sync
# this indicates to other read/write operations
# that they should wait until this is None again
self.current_sync_operation = _threading.currentThread()
# now wait again for asyncs to finish
if self.async > 0:
if wait:
# wait
self.condition.wait()
else:
# we dont want to wait, so forget it
self.current_sync_operation = None
return False
def do_acquire_write_lock(self, wait=True):
self.condition.acquire()
try:
# here, we are not a synchronous reader, and after returning,
# assuming waiting or immediate availability, we will be.
if wait:
# if another sync is working, wait
while self.current_sync_operation is not None:
self.condition.wait()
else:
# if another sync is working,
# we dont want to wait, so forget it
if self.current_sync_operation is not None:
return False
# establish ourselves as the current sync
# this indicates to other read/write operations
# that they should wait until this is None again
self.current_sync_operation = _threading.currentThread()
# now wait again for asyncs to finish
if self.async > 0:
if wait:
# wait
self.condition.wait()
else:
# we dont want to wait, so forget it
self.current_sync_operation = None
return False
