67 lines
970 B
Ruby
67 lines
970 B
Ruby
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#!/usr/bin/ruby
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require 'sbdb'
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require 'uuidtools'
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class Rotate
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def initialize db, env = db.home, &e
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@rdb, @env, @dbs = db, env, {}
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self.hash = e || lambda {|k|
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[k.timestamp.to_i/60/60/24].pack 'N'
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}
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end
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def hash= e
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self.hash &e
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end
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def hash &e
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@hash_func = e if e
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@hash_func
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end
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def hashing k
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@hash_func.call k
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end
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def db_name id
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h = hashing id
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n = @rdb[ h]
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if n
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n = UUIDTools::UUID.parse_raw n
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else
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n = UUIDTools::UUID.timestamp_create
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@rdb[ h] = n.raw
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info :create => n.to_s
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end
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n
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end
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def db n
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@env[ n.to_s, :type => SBDB::Btree, :flags => SBDB::CREATE | SBDB::AUTO_COMMIT]
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end
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def sync
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@dbs.each{|n,db|db.sync}
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@rdb.sync
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end
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def close
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@dbs.each{|n,db|db.close 0}
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@rdb.close 0
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end
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def put k, v, f = k
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id = UUIDTools::UUID.timestamp_create
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s = [0x10, v].pack 'Na*'
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n = db_name id
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db( n)[ id.raw] = s
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end
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alias emit put
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def get k
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n = db_name id
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db( n)[ id.raw] = s
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end
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end
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