core: block cache Has method thread safe
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@ -85,6 +85,9 @@ func (bc *BlockCache) Get(hash common.Hash) *types.Block {
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}
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func (bc *BlockCache) Has(hash common.Hash) bool {
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bc.mu.RLock()
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defer bc.mu.RUnlock()
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_, ok := bc.blocks[hash]
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return ok
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}
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