* parity-version: bump beta to 2.0.2
* remove ssl from dockerfiles, closes#8880 (#9195)
* snap: remove ssl dependencies from snapcraft definition (#9222)
* parity-version: bump beta to 2.0.3
* Remove all dapp permissions related settings (#9120)
* Completely remove all dapps struct from rpc
* Remove unused pub use
* Remove dapp policy/permission func in ethcore
* Remove all dapps settings from rpc
* Fix rpc tests
* Use both origin and user_agent
* Address grumbles
* Address grumbles
* Fix tests
* Check if synced when using eth_getWork (#9193) (#9210)
* Check if synced when using eth_getWork (#9193)
* Don't use fn syncing
* Fix identation
* Fix typo
* Don't check for warping
* rpc: avoid calling queue_info twice on eth_getWork
* Fix potential as_usize overflow when casting from U256 in miner (#9221)
* Allow old blocks from peers with lower difficulty (#9226)
Previously we only allow downloading of old blocks if the peer
difficulty was greater than our syncing difficulty. This change allows
downloading of blocks from peers where the difficulty is greater then
the last downloaded old block.
* Update Dockerfile (#9242)
* Update Dockerfile
fix Docker build
* fix dockerfile paths: parity -> parity-ethereum (#9248)
* Propagate transactions for next 4 blocks. (#9265)
Closes#9255
This PR also removes the limit of max 64 transactions per packet, currently we only attempt to prevent the packet size to go over 8MB. This will only be the case for super-large transactions or high-block-gas-limit chains.
Patching this is important only for chains that have blocks that can fit more than 4k transactions (over 86M block gas limit)
For mainnet, we should actually see a tiny bit faster propagation since instead of computing 4k pending set, we only need `4 * 8M / 21k = 1523` transactions.
Running some tests on `dekompile` node right now, to check how it performs in the wild.
* Update tobalaba.json (#9313)
* Fix load share (#9321)
* fix(light_sync): calculate `load_share` properly
* refactor(api.rs): extract `light_params` fn, add test
* style(api.rs): add trailing commas
* ethcore: fix pow difficulty validation (#9328)
* ethcore: fix pow difficulty validation
* ethcore: validate difficulty is not zero
* ethcore: add issue link to regression test
* ethcore: fix tests
* ethcore: move difficulty_to_boundary to ethash crate
* ethcore: reuse difficulty_to_boundary and boundary_to_difficulty
* ethcore: fix grumbles in difficulty_to_boundary_aux
* Light client `Provide default nonce in transactions when it´s missing` (#9370)
* Provide `default_nonce` in tx`s when it´s missing
When `nonce` is missing in a `EthTransaction` will cause it to fall in
these cases provide `default_nonce` value instead!
* Changed http:// to https:// on Yasm link (#9369)
Changed http:// to https:// on Yasm link in README.md
* Provide `default_nonce` in tx`s when it´s missing
When `nonce` is missing in a `EthTransaction` will cause it to fall in
these cases provide `default_nonce` value instead!
* Address grumbles
* ethcore: kovan: delay activation of strict score validation (#9406)
* Better support for eth_getLogs in light mode (#9186)
* Light client on-demand request for headers range.
* Cache headers in HeaderWithAncestors response.
Also fulfills request locally if all headers are in cache.
* LightFetch::logs fetches missing headers on demand.
* LightFetch::logs limit the number of headers requested at a time.
* LightFetch::logs refactor header fetching logic.
* Enforce limit on header range length in light client logs request.
* Fix light request tests after struct change.
* Respond to review comments.
* Add update docs script to CI (#9219)
* Add update docs script to CI
Added a script to CI that will use the jsonrpc tool to update rpc
documentation then commit and push those to the wiki repo.
* fix gitlab ci lint
* Only apply jsonrpc docs update on tags
* Update gitlab-rpc-docs.sh
* Copy correct parity repo to jsonrpc folder
Copy correct parity repo to jsonrpc folder before attempting to build docs since the CI runner clones the repo as parity and not parity-ethereum.
* Fix JSONRPC docs CI job
Update remote config in wiki repo before pushing changes using a github
token for authentication. Add message to wiki tag when pushing changes.
Use project directory to correctly copy parity code base into the
jsonrpc repo for doc generation.
* Fix set_remote_wiki function call in CI
* Prevent blockchain & miner racing when accessing pending block. (#9310)
* Prevent blockchain & miner racing when accessing pending block.
* Fix unavailability of pending block during reseal.
* Prevent sync restart if import queue full (#9381)
* Add POA Networks: Core and Sokol (#9413)
* ethcore: add poa network and sokol chainspecs
* rpc: simplify chain spec docs
* cli: rearrange networks by main/test and size/range
* parity: don't blacklist 0x00a328 on sokol testnet
* parity: add sokol and poanet to params and clean up a bit, add tests
* ethcore: add the poa networks and clean up a bit
* ethcore: fix path to poacore chain spec
* parity: rename poa networks to poacore and poasokol
* parity: fix configuration tests
* parity: fix parameter tests
* ethcore: rename POA Core and POA Sokol
* Update tobalaba.json (#9419)
* Update hardcoded sync (#9421)
- Update foundation hardcoded header to block 6219777
- Update ropsten hardcoded header to block 3917825
- Update kovan hardcoded header to block 8511489
* parity-version: betalize 2.0
* Multiple improvements to discovery ping handling (#8771)
* discovery: Only add nodes to routing table after receiving pong.
Previously the discovery algorithm would add nodes to the routing table
before confirming that the endpoint is participating in the protocol. This
now tracks in-flight pings and adds to the routing table only after receiving
a response.
* discovery: Refactor packet creation into its own function.
This function is useful inside unit tests.
* discovery: Additional testing for new add_node behavior.
* discovery: Track expiration of pings to non-yet-in-bucket nodes.
Now that we may ping nodes before adding to a k-bucket, the timeout tracking
must be separate from BucketEntry.
* discovery: Verify echo hash on pong packets.
Stores packet hash with in-flight requests and matches with pong response.
* discovery: Track timeouts on FIND_NODE requests.
* discovery: Retry failed pings with exponential backoff.
UDP packets may get dropped, so instead of immediately booting nodes that fail
to respond to a ping, retry 4 times with exponential backoff.
* !fixup Use slice instead of Vec for request_backoff.
* Add separate database directory for light client (#8927) (#9064)
* Add seperate default DB path for light client (#8927)
* Improve readability
* Revert "Replace `std::env::home_dir` with `dirs::home_dir` (#9077)" (#9097)
* Revert "Replace `std::env::home_dir` with `dirs::home_dir` (#9077)"
This reverts commit 7e779327eb.
* Restore some of the changes
* Update parity-common
* Offload cull to IoWorker. (#9099)
* Fix work-notify. (#9104)
* Update hidapi, fixes#7542 (#9108)
* docker: add cmake dependency (#9111)
* Update light client hardcoded headers (#9098)
* Insert Kovan hardcoded headers until #7690241
* Insert Kovan hardcoded headers until block 7690241
* Insert Ropsten hardcoded headers until #3612673
* Insert Mainnet hardcoded headers until block 5941249
* Make sure to produce full blocks. (#9115)
* Insert ETC (classic) hardcoded headers until block #6170625 (#9121)
* fix verification in ethcore-sync collect_blocks (#9135)
* Completely remove all dapps struct from rpc (#9107)
* Completely remove all dapps struct from rpc
* Remove unused pub use
* `evm bench` fix broken dependencies (#9134)
* `evm bench` use valid dependencies
Benchmarks of the `evm` used stale versions of a couple a crates that
this commit fixes!
* fix warnings
* Update snapcraft.yaml (#9132)
* Make work-notify an optional feature
* More optional ethcore features: price-info, stratum
* Make ethcore features part of dependency instead of local features
* Put cfg gate in right location
* Feature gate register function on work-notify
* rpc: return unordered transactions in pending transactions filter
* ethcore: use LruCache for nonce cache
Only clear the nonce cache when a block is retracted
* Revert "ethcore: use LruCache for nonce cache"
This reverts commit b382c19abdb9985be1724c3b8cde83906da07d68.
* Use only cached nonces when computing pending hashes.
* Give filters their own locks, so that they don't block one another.
* Fix pending transaction count if not sealing.
* Clear cache only when block is enacted.
* Fix RPC tests.
* Address review comments.
* Add tx_queue_allow_unknown_local config option
- Previous commit messages:
dispatcher checks if we have the sender account
Add `tx_queue_allow_unknown_local` to MinerOptions
Add `tx_queue_allow_unknown_local` to config
fix order in MinerOptions to match Configuration
add cli flag for tx_queue_allow_unknown_local
Update refs to `tx_queue_allow_unknown_local`
Add tx_queue_allow_unknown_local to config test
revert changes to dispatcher
Move tx_queue_allow_unknown_local to `import_own_transaction`
Fix var name
if statement should return the values
derp de derp derp derp semicolons
Reset dispatch file to how it was before
fix compile issues + change from FLAG to ARG
add test and use `into`
import MinerOptions, clone the secret
Fix tests?
Compiler/linter issues fixed
Fix linter msg - case of constants
IT LIVES
refactor to omit yucky explict return
update comments
Fix based on diff AccountProvider.has_account method
* Refactor flag name + don't change import_own_tx behaviour
fix arg name
Note: force commit to try and get gitlab tests working again 😠
* Add fn to TestMinerService
* Avoid race condition from trusted sources
- refactor the miner tests a bit to cut down on code reuse
- add `trusted` param to dispatch_transaction and import_claimed_local_transaction
Add param to `import_claimed_local_transaction`
Fix fn sig in tests
* Remove unused Result wrap in has_account
* Check whether we need to reseal for external transactions
* Fix reference to has_account interface
* typo: missing )
* Refactor duplicates to prepare_and_update_sealing
* Fix build
* Unordered iterator.
* Use unordered and limited set if full not required.
* Split timeout work into smaller timers.
* Avoid collecting all pending transactions when mining
* Remove println.
* Use priority ordering in eth-filter.
* Fix ethcore-miner tests and tx propagation.
* Review grumbles addressed.
* Add test for unordered not populating the cache.
* Fix ethcore tests.
* Fix light tests.
* Fix ethcore-sync tests.
* Fix RPC tests.
* Use sealing.enabled to emit eth_mining information
* Be more accurate on last_requests by using Option
* Add tests for internal sealing
* Add test for pow non-mining
* Add test for mining pow
* Update `add_license` script
* run script
* add `remove duplicate lines script` and run it
* Revert changes `English spaces`
* strip whitespaces
* Revert `GPL` in files with `apache/mit license`
* don't append `gpl license` in files with other lic
* Don't append `gpl header` in files with other lic.
* re-ran script
* include c and cpp files too
* remove duplicate header
* rebase nit
* Lots of println to figure out what eth_getBlockByNumber does/should do
* Remove debugging
* Print warnings when fetching pending blocks
When calling `eth_getBlockByNumber` with `pending`, we now print a deprecation warning and:
* if a pending block is found, use it to respond
* if no pending block is found, respond as if if was a request for `Latest`
Addresses issue #8703 (not sure if it's enough to close it tbh)
* rlp::decode returns Result
* Fix journaldb to handle rlp::decode Result
* Fix ethcore to work with rlp::decode returning Result
* Light client handles rlp::decode returning Result
* Fix tests in rlp_derive
* Fix tests
* Cleanup
* cleanup
* Allow panic rather than breaking out of iterator
* Let decoding failures when reading from disk blow up
* syntax
* Fix the trivial grumbles
* Fix failing tests
* Make Account::from_rlp return Result
* Syntx, sigh
* Temp-fix for decoding failures
* Header::decode returns Result
Handle new return type throughout the code base.
* Do not continue reading from the DB when a value could not be read
* Fix tests
* Handle header decoding in light_sync
* Handling header decoding errors
* Let the DecodeError bubble up unchanged
* Remove redundant error conversion
* WIP
* Convert Ethcore error to use error_chain
* Use error_chain for ImportError and BlockImportError
* Fix error pattern matches for error_chain in miner
* Implement explicit From for AccountsError
* Fix pattern matches for ErrorKinds
* Handle ethcore error_chain in light client
* Explicitly define Result type to avoid shadowing
* Fix remaining Error pattern matches
* Fix tab space formatting
* Helps if the tests compile
* Fix error chain matching after merge
* Implementation of Verifier, Scoring and Ready.
* Queue in progress.
* TransactionPool.
* Prepare for txpool release.
* Miner refactor [WiP]
* WiP reworking miner.
* Make it compile.
* Add some docs.
* Split blockchain access to a separate file.
* Work on miner API.
* Fix ethcore tests.
* Refactor miner interface for sealing/work packages.
* Implement next nonce.
* RPC compiles.
* Implement couple of missing methdods for RPC.
* Add transaction queue listeners.
* Compiles!
* Clean-up and parallelize.
* Get rid of RefCell in header.
* Revert "Get rid of RefCell in header."
This reverts commit 0f2424c9b7319a786e1565ea2a8a6d801a21b4fb.
* Override Sync requirement.
* Fix status display.
* Unify logging.
* Extract some cheap checks.
* Measurements and optimizations.
* Fix scoring bug, heap size of bug and add cache
* Disable tx queueing and parallel verification.
* Make ethcore and ethcore-miner compile again.
* Make RPC compile again.
* Bunch of txpool tests.
* Migrate transaction queue tests.
* Nonce Cap
* Nonce cap cache and tests.
* Remove stale future transactions from the queue.
* Optimize scoring and write some tests.
* Simple penalization.
* Clean up and support for different scoring algorithms.
* Add CLI parameters for the new queue.
* Remove banning queue.
* Disable debug build.
* Change per_sender limit to be 1% instead of 5%
* Avoid cloning when propagating transactions.
* Remove old todo.
* Post-review fixes.
* Fix miner options default.
* Implement back ready transactions for light client.
* Get rid of from_pending_block
* Pass rejection reason.
* Add more details to drop.
* Rollback heap size of.
* Avoid cloning hashes when propagating and include more details on rejection.
* Fix tests.
* Introduce nonces cache.
* Remove uneccessary hashes allocation.
* Lower the mem limit.
* Re-enable parallel verification.
* Add miner log. Don't check the type if not below min_gas_price.
* Add more traces, fix disabling miner.
* Fix creating pending blocks twice on AuRa authorities.
* Fix tests.
* re-use pending blocks in AuRa
* Use reseal_min_period to prevent too frequent update_sealing.
* Fix log to contain hash not sender.
* Optimize local transactions.
* Fix aura tests.
* Update locks comments.
* Get rid of unsafe Sync impl.
* Review fixes.
* Remove excessive matches.
* Fix compilation errors.
* Use new pool in private transactions.
* Fix private-tx test.
* Fix secret store tests.
* Actually use gas_floor_target
* Fix config tests.
* Fix pool tests.
* Address grumbles.
* parity-reactor: Pass over Handle in spawning fn to allow normal tokio ops
* Allow fetch to work with arbitrary requests
* typo: Fix missing handler closure
* miner, work_notify: use fetch and parity-reactor
* Fix work_notify pushing in parity CLI
* Private transaction message added
* Empty line removed
* Private transactions logic removed from client into the separate module
* Fixed compilation after merge with head
* Signed private transaction message added as well
* Comments after the review fixed
* Private tx execution
* Test update
* Renamed some methods
* Fixed some tests
* Reverted submodules
* Fixed build
* Private transaction message added
* Empty line removed
* Private transactions logic removed from client into the separate module
* Fixed compilation after merge with head
* Signed private transaction message added as well
* Comments after the review fixed
* Encrypted private transaction message and signed reply added
* Private tx execution
* Test update
* Main scenario completed
* Merged with the latest head
* Private transactions API
* Comments after review fixed
* Parameters for private transactions added to parity arguments
* New files added
* New API methods added
* Do not process packets from unconfirmed peers
* Merge with ptm_ss branch
* Encryption and permissioning with key server added
* Fixed compilation after merge
* Version of Parity protocol incremented in order to support private transactions
* Doc strings for constants added
* Proper format for doc string added
* fixed some encryptor.rs grumbles
* Private transactions functionality moved to the separate crate
* Refactoring in order to remove late initialisation
* Tests fixed after moving to the separate crate
* Fetch method removed
* Sync test helpers refactored
* Interaction with encryptor refactored
* Contract address retrieving via substate removed
* Sensible gas limit for private transactions implemented
* New private contract with nonces added
* Parsing of the response from key server fixed
* Build fixed after the merge, native contracts removed
* Crate renamed
* Tests moved to the separate directory
* Handling of errors reworked in order to use error chain
* Encodable macro added, new constructor replaced with default
* Native ethabi usage removed
* Couple conversions optimized
* Interactions with client reworked
* Errors omitting removed
* Fix after merge
* Fix after the merge
* private transactions improvements in progress
* private_transactions -> ethcore/private-tx
* making private transactions more idiomatic
* private-tx encryptor uses shared FetchClient and is more idiomatic
* removed redundant tests, moved integration tests to tests/ dir
* fixed failing service test
* reenable add_notify on private tx provider
* removed private_tx tests from sync module
* removed commented out code
* Use plain password instead of unlocking account manager
* remove dead code
* Link to the contract changed
* Transaction signature chain replay protection module created
* Redundant type conversion removed
* Contract address returned by private provider
* Test fixed
* Addressing grumbles in PrivateTransactions (#8249)
* Tiny fixes part 1.
* A bunch of additional comments and todos.
* Fix ethsync tests.
* resolved merge conflicts
* final private tx pr (#8318)
* added cli option that enables private transactions
* fixed failing test
* fixed failing test
* fixed failing test
* fixed failing test
* Very primitive test of the Client API
* [WIP] getting rid of request
* Add support for redirects.
* Remove CpuPool from `fetch::Client`.
* Adapt code to API changes and fix tests.
* Use reference counter to stop background thread.
On `clone` the counter is incremented, on `drop` decremented. Once 0 we
send `None` over the channel, expecting the background thread to end.
* Fix tests.
* Comment.
* Change expect messages.
* Use local test server for testing fetch client.
* Ensure max_size also in BodyReader.
* Replace `Condvar` with `sync_channel`.
* Re-export `url::Url` from `fetch` crate.
* Remove spaces.
* Use random ports in local test server.
* Improves `BestBlock` comment
* Improves `TraceDB` comment
* Improves `journaldb::Algorithm` comment.
Probably the whole enum should be renamed to `Strategy` or something alike.
* Comments some of the `Client`'s fields
* Deglobs client imports
* Fixes comments
* Extracts `import_lock` to `Importer` struct
* Extracts `verifier` to `Importer` struct
* Extracts `block_queue` to `Importer` struct
* Extracts `miner` to `Importer` struct
* Extracts `ancient_verifier` to `Importer` struct
* Extracts `rng` to `Importer` struct
* Extracts `import_old_block` to `Importer` struct
* Adds `Nonce` trait
* Adds `Balance` trait
* Adds `ChainInfo` trait
* Fixes imports for tests using `chain_info` method
* Adds `BlockInfo` trait
* Adds more `ChainInfo` imports
* Adds `BlockInfo` imports
* Adds `ReopenBlock` trait
* Adds `PrepareOpenBlock` trait
* Fixes import in tests
* Adds `CallContract` trait
* Fixes imports in tests using `call_contract` method
* Adds `TransactionInfo` trait
* Adds `RegistryInfo` trait
* Fixes imports in tests using `registry_address` method
* Adds `ScheduleInfo` trait
* Adds `ImportSealedBlock` trait
* Fixes imports in test using `import_sealed_block` method
* Adds `BroadcastProposalBlock` trait
* Migrates `Miner` to static dispatch
* Fixes tests
* Moves `calculate_enacted_retracted` to `Importer`
* Moves import-related methods to `Importer`
* Removes redundant `import_old_block` wrapper
* Extracts `import_block*` into separate trait
* Fixes tests
* Handles `Pending` in `LightFetch`
* Handles `Pending` in filters
* Handles `Pending` in `ParityClient`
* Handles `Pending` in `EthClient`
* Removes `BlockId::Pending`, partly refactors dependent code
* Adds `StateInfo` trait
* Exports `StateOrBlock` and `BlockChain` types from `client` module
* Refactors `balance` RPC using generic API
* Refactors `storage_at` RPC using generic API
* Makes `MinerService::pending_state`'s return type dynamic
* Adds `StateOrBlock` and `BlockChain` types
* Adds impl of `client::BlockChain` for `Client`
* Exports `StateInfo` trait from `client` module
* Missing `self` use
To be fixed up to "Adds impl of `client::BlockChain` for `Client`"
* Adds `number_to_id` and refactors dependent RPC methods
* Refactors `code_at` using generic API
* Adds `StateClient` trait
* Refactors RPC to use `StateClient` trait
* Reverts `client::BlockChain` trait stuff, refactors methods to accept `StateOrBlock`
* Refactors TestClient
* Adds helper function `block_number_to_id`
* Uses `block_number_to_id` instead of local function
* Handles `Pending` in `list_accounts` and `list_storage_keys`
* Attempt to use associated types for state instead of trait objects
* Simplifies `state_at_beginning`
* Extracts `call` and `call_many` into separate trait
* Refactors `build_last_hashes` to accept reference
* Exports `Call` type from the module
* Refactors `call` and `call_many` to accept state and header
* Exports `state_at` in `StateClient`
* Exports `pending_block_header` from `MinerService`
* Refactors RPC `call` method using new API
* Adds missing parentheses
* Refactors `parity::call` to use new call API
* Update .gitlab-ci.yml
fix gitlab lint
* Fixes error handling
* Refactors `traces::call` and `call_many` to use new call API
* Refactors `call_contract`
* Refactors `block_header`
* Refactors internal RPC method `block`
* Moves `estimate_gas` to `Call` trait, refactors parameters
* Refactors `estimate_gas` in RPC
* Refactors `uncle`
* Refactors RPC `transaction`
* Covers missing branches
* Makes it all compile, fixes compiler grumbles
* Adds casts in `blockchain` module
* Fixes `PendingBlock` tests, work on `MinerService`
* Adds test stubs for StateClient and EngineInfo
* Makes `state_db` public
* Adds missing impls for `TestBlockChainClient`
* Adds trait documentation
* Adds missing docs to the `state_db` module
* Fixes trivial compilation errors
* Moves `code_hash` method to a `BlockInfo` trait
* Refactors `Verifier` to be generic over client
* Refactors `TransactionFilter` to be generic over client
* Refactors `Miner` and `Client` to reflect changes in verifier and txfilter API
* Moves `ServiceTransactionChecker` back to `ethcore`
* Fixes trait bounds in `Miner` API
* Fixes `Client`
* Fixes lifetime bound in `FullFamilyParams`
* Adds comments to `FullFamilyParams`
* Fixes imports in `ethcore`
* Fixes BlockNumber handling in `code_at` and `replay_block_transactions`
* fix compile issues
* First step to redundant trait merge
* Fixes compilation error in RPC tests
* Adds mock `State` as a stub for `TestClient`
* Handles `StateOrBlock::State` in `TestBlockChainClient::balance`
* Fixes `transaction_count` RPC
* Fixes `transaction_count`
* Moves `service_transaction.json` to the `contracts` subfolder
* Fixes compilation errors in tests
* Refactors client to use `AccountData`
* Refactors client to use `BlockChain`
* Refactors miner to use aggregate traits
* Adds `SealedBlockImporter` trait
* Refactors miner to use `SealedBlockImporter` trait
* Removes unused imports
* Simplifies `RegistryInfo::registry_address`
* Fixes indentation
* Removes commented out trait bound
* Refactor updater to use ethabi-derive
* Grumble: do_call type alias
* Empty commit to trigger test re-run
* migration to ethabi-5.0
* migration to ethabi-5.0 in progress
* use ethabi_deriven to generate TransactAcl contract
* use ethabi_deriven to generate Registry contract
* hash-fetch uses ethabi_derive, removed retain cycle from updater, fixed#7720
* node-filter crate uses ethabi_derive to generate peer_set contract interface
* use LruCache in node-filter instead of HashMap
* validator_set engine uses ethabi_derive
* ethcore does not depend on native_contracts
* miner does no depend on native_contracts
* secret_store does not use native_contracts (in progress)
* removed native-contracts
* ethcore and updater does not depend on futures
* updated ethereum-types
* fixed all warnings caused by using new version of ethereum-types
* updated ethabi_derive && ethabi_contract to get rid of warnings
* removed another retain cycle in updater, fixed following minor version on update
* moved contracts out of native_contracts res
* updated ethabi_contract
* fixed failing test
* fixed failing test
* there is no need to create two contracts of the same kind any more
* simplify updater::ReleaseTrack conversion into u8 and add several tests for it
* applied review suggestions
* applied review suggestions
* Move miner away from ethcore.
* Fix ethcore to use miner/transaction.
* Fix tests and warnings.
* fixed incorrect merge of the test in the documentation
* move common forks and parameters to common params
* port specs over to new format
* fix RPC tests
* parity-machine skeleton
* remove block type
* extract out ethereum-specific methods into EthereumMachine
* beginning to integrate Machine into engines. dealing with stale transitions in Ethash
* initial porting to machine
* move block reward back into engine
* abstract block reward logic
* move last hash and DAO HF logic into machine
* begin making engine function parameters generic
* abstract epoch verifier and ethash block reward logic
* instantiate special ethereummachine for ethash in spec
* optional full verification in verify_block_family
* re-instate tx_filter in a way that works for all engines
* fix warnings
* fix most tests, further generalize engine trait
* uncomment nullengine, get ethcore tests compiling
* fix warnings
* update a bunch of specs
* re-enable engine signer, validator set, and transition handler
* migrate basic_authority engine
* move last hashes into executedblock
* port tendermint
* make all ethcore tests pass
* json-tests compilation
* fix RPC tests: change in gas limit for new block changed PoW hash
* fix minor grumbles
* validate chainspecs
* fix broken import
* fix transaction verification for pre-homestead
* Rebase and fix compilation errors (tests not yet fixed)
* Use `debug_assert` over `assert`
* Fix tests
* Assert safety, clean up
* Fix up stale cache removal, move one assert to debug_assert
* Remove printlns
* Add licenses
* Fix benches
* Inline some no-ops in a hot loop that weren't being inlined
* Add spooky comment to make sure no-one removes the inlining annotations
* Minor cleanup
* Add option to switch between mmap and ram
* Flag ethash to use less memory when running light client
* Fix tests
* Remove todo comment (it's done)
* Replace assertion with error return
* Fix indentation
* Use union instead of `transmute`
* Fix benches
* Extract to constants
* Clean up and fix soundness holes
* Fix formatting
* Ignore missing-file errors
* Make incorrect cache size an error condition instead of a panic, remove dead code
* Fix compilation errors from rebase
* Fix compilation errors in tests
* Fix compilation errors in tests
