(Google AppEngine) Memcache Lock Entry
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by Friedrich
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Published on 2010-02-11T15:00:09Z
Indexed on
2010/03/31
23:03 UTC
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Hi,
i need a locking in memcache. Since all operations are atomic that should be an easy task. My idea is to use a basic spin-lock mechanism. So every object that needs locking in memcache gets a lock object, which will be polled for access.
// pseudo code
// try to get a lock
int lock;
do
{
lock = Memcache.increment("lock", 1);
}
while(lock != 1)
// ok we got the lock
// do something here
// and finally unlock
Memcache.put("lock", 0);
How does such a solution perform? Do you have a better idea how to lock a memcache object?
Best regards,
Friedrich Schick
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