I can not find the lock feature of memcache.
It's easy to set a flag somewhere in the memcache (got Lock)
The problem is: how the other request
when it hits the locked flag to wait for the lock to be released.
A quick and very drity solution is (maybe not even work, just for concept):
client = memcache.Client()
locked = client.get('lock')
while locked:
## wait for another request to release the lock
time.sleep(1)
locked = client.get('lock')
locked = client.set('lock',1)
.....
locked = client.set('lock',0)
Is there better way than "while ..sleep?" to block the request for a moment?
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