From: Pieter Noordhuis <pcnoordhuis@gmail.com>
Date: Mon, 30 Apr 2012 17:16:20 +0000 (-0700)
Subject: Use safe dictionary iterator from KEYS
X-Git-Url: https://git.saurik.com/redis.git/commitdiff_plain/cc4f65fea4f72ba891b07769d685364f209f5355?hp=cc4f65fea4f72ba891b07769d685364f209f5355

Use safe dictionary iterator from KEYS

Every matched key in a KEYS call is checked for expiration. When the key
is set to expire, the call to `getExpire` will assert that the key also
exists in the main dictionary. This in turn causes a rehashing step to
be executed. Rehashing a dictionary when there is an iterator active may
result in the iterator emitting duplicate entries, or not emitting some
entries at all. By using a safe iterator, the rehash step is omitted.
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