* Introduce MessageFrameTestFixture to make it easier to test EVM operations.
* Add unit tests for BlockHashOperation.
Signed-off-by: Adrian Sutton <adrian.sutton@consensys.net>
On the transition to the EthHash/Clique Mining Coordinator a change
was lost whereby the EthHashMiningCoordinator is to capture the
current Hashrate on cancellation of a mining operation.
Signed-off-by: Adrian Sutton <adrian.sutton@consensys.net>
* [NC-1685] Fix BlockHashOperation so it handles blocks being added on forks and gets the hash of the block at the requested number on that fork rather than on the current canonical chain.
* [NC-1644] Cache block hashes across all transactions in a block.
Signed-off-by: Adrian Sutton <adrian.sutton@consensys.net>
The MiningCoordinator has been split into common, and ethhash
specific funcationality.
This adversely affects the JSON RPC, in that all mining related
RPCs are now generic based on the type of miner being used.
Signed-off-by: Adrian Sutton <adrian.sutton@consensys.net>
The EthHashMinerExecutor is comprised of both EthHash specific
functions as well as common functions which will be useful to other
consensus mechanisms.
As such the common functionality has been extracted to a parent class,
leaving ethhash specific functionality in the child.
Signed-off-by: Adrian Sutton <adrian.sutton@consensys.net>
Responsible for mining a block if the local node address
is a validator, and has not recently mined a block.
This has necessitated a slight rework of helper functions,
and shuffling of tests.
Signed-off-by: Adrian Sutton <adrian.sutton@consensys.net>
The EthHashBlockMiner contains both the generic mining capabilities
and the EthHash JSON specific API.
The generic capabilities have been extracted into a base class which
can be reused for Clique (or other) consensus mechanisms.
Signed-off-by: Adrian Sutton <adrian.sutton@consensys.net>
Clique Block Scheduler has been reworked to prevent high rate blocks
being created when the parent block's timestamp is behind the system
clock.
Signed-off-by: Adrian Sutton <adrian.sutton@consensys.net>