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@ -22,15 +22,23 @@ func cachingStateFetcher(store Store) func() (State, error) { |
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mutex.Lock() |
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defer mutex.Unlock() |
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if cache.ChainID == "" { // is nil
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cache, err = store.Load() |
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if err != nil { |
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return State{}, err |
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} |
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last = time.Now() |
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ttl = 100*time.Millisecond + (cache.LastBlockTime.Add(last) * 2) |
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if time.Since(last) < ttl && cache.ChainID != "" { |
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return cache, nil |
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} |
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cache, err = store.Load() |
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if err != nil { |
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return State{}, err |
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} |
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last = time.Now() |
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// at least 100ms but maybe as much as that+
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// a block interval. This might end up being
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// too much, but it replaces a mechanism that
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// cached these values for the entire runtime
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// of the process
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ttl = (100 * time.Millisecond) + cache.LastBlockTime.Sub(last) |
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return cache, nil |
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} |
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} |
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@ -38,9 +46,10 @@ func cachingStateFetcher(store Store) func() (State, error) { |
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// TxPreCheck returns a function to filter transactions before processing.
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// The function limits the size of a transaction to the block's maximum data size.
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func TxPreCheck(store Store) mempool.PreCheckFunc { |
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fetch := cachingStateFetcher(store) |
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return func(tx types.Tx) error { |
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// TODO: this should probably be cached at some level.
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state, err := store.Load() |
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state, err := fetch() |
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if err != nil { |
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return err |
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} |
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@ -55,9 +64,10 @@ func TxPreCheck(store Store) mempool.PreCheckFunc { |
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// TxPostCheck returns a function to filter transactions after processing.
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// The function limits the gas wanted by a transaction to the block's maximum total gas.
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func TxPostCheck(store Store) mempool.PostCheckFunc { |
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fetch := cachingStateFetcher(store) |
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return func(tx types.Tx, resp *abci.ResponseCheckTx) error { |
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// TODO: this should probably be cached at some level.
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state, err := store.Load() |
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state, err := fetch() |
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if err != nil { |
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return err |
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} |
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