# Trait ethcore::client::MiningBlockChainClient [−] [src]

    pub trait MiningBlockChainClient: BlockChainClient {
        fn prepare_open_block(&self,
                          author: Address,
                          gas_range_target: (U256, U256),
                          extra_data: Bytes)
                          -> OpenBlock;
        fn vm_factory(&self) -> &EvmFactory;
        fn broadcast_proposal_block(&self, block: SealedBlock);
        fn import_sealed_block(&self, block: SealedBlock) -> ImportResult;
        fn latest_schedule(&self) -> Schedule;
    }

Extended client interface used for mining

## Required Methods

### `fn prepare_open_block(&self,
author: Address,
gas_range_target: (U256, U256),
extra_data: Bytes)
-> OpenBlock`

Returns OpenBlock prepared for closing.

### `fn vm_factory(&self) -> &EvmFactory`

Returns EvmFactory.

### `fn broadcast_proposal_block(&self, block: SealedBlock)`

Broadcast a block proposal.

### `fn import_sealed_block(&self, block: SealedBlock) -> ImportResult`

Import sealed block. Skips all verifications.

### `fn latest_schedule(&self) -> Schedule`

Returns latest schedule.

## Implementors

- `impl MiningBlockChainClient for TestBlockChainClient`
- `impl MiningBlockChainClient for Client`

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