def callAsyncNoPoll(self, method, *args):
# Like CallAsync but doesn't poll. This exists so that we can
# send invalidations atomically to all clients without
# allowing any client to sneak in a load request.
if self.closed:
raise DisconnectedError()
self.send_call(method, args, ASYNC)
def wait(self, msgid):
"""Invoke asyncore mainloop and wait for reply."""
if __debug__:
self.log("wait(%d), async=%d" % (msgid, self.is_async()),
level=TRACE)
if self.is_async():
self._pull_trigger()
# Delay used when we call asyncore.poll() directly.
# Start with a 1 msec delay, double until 1 sec.
delay = 0.001
self.replies_cond.acquire()
try:
while 1:
if self.closed:
raise DisconnectedError()
reply = self.replies.get(msgid)
if reply is not None:
del self.replies[msgid]
if __debug__:
self.log("wait(%d): reply=%s" %
(msgid, short_repr(reply)),
level=TRACE)
return reply
assert self.is_async() # XXX we're such cowards
self.replies_cond.wait()
finally:
self.replies_cond.release()
def message_output(self, message):
if __debug__:
if self._debug:
log("message_output %d bytes: %s hmac=%d" %
(len(message), short_repr(message), self.__hmac_send and 1
or 0),
level=TRACE)
if self.__closed:
raise DisconnectedError(
"This action is temporarily unavailable.<p>")
self.__output_lock.acquire()
try:
# do two separate appends to avoid copying the message string
if self.__hmac_send:
self.__output.append(struct.pack(">I", len(message) | MAC_BIT))
self.__hmac_send.update(message)
self.__output.append(self.__hmac_send.digest())
else:
self.__output.append(struct.pack(">I", len(message)))
if len(message) <= SEND_SIZE:
self.__output.append(message)
else:
for i in range(0, len(message), SEND_SIZE):
self.__output.append(message[i:i + SEND_SIZE])
finally:
self.__output_lock.release()
def _deferred_call(self, method, *args):
if self.closed:
raise DisconnectedError()
msgid = self.send_call(method, args, 0)
if self.is_async():
self.trigger.pull_trigger()
else:
asyncore.poll(0.01, self._singleton)
return msgid
def call(self, method, *args):
if self.closed:
raise DisconnectedError()
msgid = self.send_call(method, args, 0)
r_flags, r_args = self.wait(msgid)
if (isinstance(r_args, tuple) and len(r_args) > 1
and type(r_args[0]) == exception_type_type
and issubclass(r_args[0], Exception)):
inst = r_args[1]
raise inst # error raised by server
else:
return r_args
def wait(self, msgid):
"""Invoke asyncore mainloop and wait for reply."""
if __debug__:
self.log("wait(%d), async=%d" % (msgid, self.is_async()),
level=TRACE)
if self.is_async():
self._pull_trigger()
# Delay used when we call asyncore.poll() directly.
# Start with a 1 msec delay, double until 1 sec.
delay = 0.001
self.replies_cond.acquire()
try:
while 1:
if self.closed:
raise DisconnectedError()
reply = self.replies.get(msgid)
if reply is not None:
del self.replies[msgid]
if __debug__:
self.log("wait(%d): reply=%s" %
(msgid, short_repr(reply)),
level=TRACE)
return reply
if self.is_async():
self.replies_cond.wait(10.0)
else:
self.replies_cond.release()
try:
try:
if __debug__:
self.log("wait(%d): asyncore.poll(%s)" %
(msgid, delay),
level=TRACE)
asyncore.poll(delay, self._singleton)
if delay < 1.0:
delay += delay
except select.error, err:
self.log("Closing. asyncore.poll() raised %s." %
err,
level=BLATHER)
self.close()
finally:
self.replies_cond.acquire()
finally:
self.replies_cond.release()
def wait(self, msgid):
"""Invoke asyncore mainloop and wait for reply."""
if debug_zrpc:
self.log("wait(%d)" % msgid, level=TRACE)
self.trigger.pull_trigger()
self.replies_cond.acquire()
try:
while 1:
if self.closed:
raise DisconnectedError()
reply = self.replies.get(msgid, self)
if reply is not self:
del self.replies[msgid]
if debug_zrpc:
self.log("wait(%d): reply=%s" %
(msgid, short_repr(reply)), level=TRACE)
return reply
self.replies_cond.wait()
finally:
self.replies_cond.release()
def callAsync(self, method, *args):
if self.closed:
raise DisconnectedError()
self.send_call(method, args, ASYNC)
self.poll()
def _deferred_call(self, method, *args):
if self.closed:
raise DisconnectedError()
msgid = self.send_call(method, args, 0)
asyncore.poll(0.01, self._singleton)
return msgid
def message_output(self, message):
if self.__closed:
raise DisconnectedError(
"This action is temporarily unavailable.<p>")
self.__output_messages.append(message)
def _deferred_call(self, method, *args):
if self.closed:
raise DisconnectedError()
msgid = self.send_call(method, args)
self.trigger.pull_trigger()
return msgid
