[ovs-dev] [ovs-discuss] [ACLv2 04/19] ofproto: Add ofproto_has_matching_flow function.
blp at nicira.com
Fri Sep 4 14:26:09 PDT 2009
Jesse Gross <jesse at nicira.com> writes:
> Ben Pfaff wrote:
>> Jesse Gross <jesse at nicira.com> writes:
>>> Checks whether one or more currently installed OpenFlow flows
>>> match the given flow and wildcards.
>> I don't see anything wrong here, but man! it is expensive to
>> iterate through all the flows to see whether there is a match. I
>> hope that this is not going to be done too often.
> I realized that this wasn't strictly necessary, so I eliminated this
> commit. I now record events that could change the result and use that
> cached value.
Thanks, that sounds like a better approach.
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