* ethash: implement EIP-1234 (#9187)
* Implement EIP-1052 (EXTCODEHASH) and fix several issues in state account cache (#9234)
* Implement EIP-1052 and fix several issues related to account cache
* Fix jsontests
* Merge two matches together
* Avoid making unnecessary Arc<Vec>
* Address grumbles
* Comply EIP-86 with the new definition (#9140)
* Comply EIP-86 with the new CREATE2 opcode
* Fix rpc compile
* Fix interpreter CREATE/CREATE2 stack pop difference
* Add unreachable! to fix compile
* Fix instruction_info
* Fix gas check due to new stack item
* Add new tests in executive
* Fix have_create2 comment
* Remove all unused references of eip86_transition and block_number
* Implement KIP4: create2 for wasm (#9277)
* Basic implementation for kip4
* Add KIP-4 config flags
* typo: docs fix
* Fix args offset
* Add tests for create2
* tests: evm
* Update wasm-tests and fix all gas costs
* Update wasm-tests
* Update wasm-tests and fix gas costs
* `gasleft` extern implemented for WASM runtime (kip-6) (#9357)
* Wasm gasleft extern added
* wasm_gasleft_activation_transition -> kip4_transition
* use kip-6 switch
* gasleft_panic -> gasleft_fail rename
* call_msg_gasleft test added and gas_left agustments because this https://github.com/paritytech/wasm-tests/pull/52
* change .. to _
* fix comment for the have_gasleft param
* update tests (0edbf860ff)
* Add EIP-1014 transition config flag (#9268)
* Add EIP-1014 transition config flag
* Remove EIP-86 configs
* Change CREATE2 opcode index to 0xf5
* Move salt to the last item in the stack
* Change sendersaltandaddress scheme to comply with current EIP-1014
* Fix json configs
* Fix create2 test
* Fix deprecated comments
* EIP 1283: Net gas metering for SSTORE without dirty maps (#9319)
* Implement last_checkpoint_storage_at
* Add reverted_storage_at for externalities
* sstore_clears_count -> sstore_clears_refund
* Implement eip1283 for evm
* Add eip1283Transition params
* evm: fix tests
* jsontests: fix test
* Return checkpoint index when creating
* Comply with spec Version II
* Fix docs
* Fix jsontests feature compile
* Address grumbles
* Fix no-checkpoint-entry case
* Remove unnecessary expect
* Add test for State::checkpoint_storage_at
* Add executive level test for eip1283
* Hard-code transaction_checkpoint_index to 0
* Fix jsontests
* Add tests for checkpoint discard/revert
* Require checkpoint to be empty for kill_account and commit
* Get code coverage
* Use saturating_add/saturating_sub
* Fix issues in insert_cache
* Clear the state again
* Fix original_storage_at
* Early return for empty RLP trie storage
* Update comments
* Fix borrow_mut issue
* Simplify checkpoint_storage_at if branches
* Better commenting for gas handling code
* Address naming grumbles
* More tests
* Fix an issue in overwrite_with
* Add another test
* Fix comment
* Remove unnecessary bracket
* Move orig to inner if
* Remove test coverage for this PR
* Add tests for executive original value
* Add warn! for an unreachable cause
* Update state tests execution model (#9440)
* Update & fix JSON state tests.
* Update tests to be able to run ethtest at
021fe3d410773024cd5f0387e62db6e6ec800f32.
- Touch user in state
- Adjust transaction tests to new json format
* Switch to same commit for submodule ethereum/test as geth (next includes constantinople changes).
Added test `json_tests::trie::generic::TrieTests_trieanyorder` and a few
difficulty tests.
* Remove trietestnextprev as it would require to parse differently and
implement it.
* Support new (shitty) format of transaction tests.
* Ignore junk in ethereum/tests repo.
* Ignore incorrect test.
* Update to a later commit
* Move block number to a constant.
* Fix ZK2 test - touched account should also be cleared.
* Fix conflict resolution
* Fix checkpointing when creating contract failed (#9514)
* In create memory calculation is the same for create2 because the additional parameter was popped before. (#9522)
* Enable all Constantinople hard fork changes in constantinople_test.json (#9505)
* Enable all Constantinople hard fork changes in constantinople_test.json
* Address grumbles
* Remove EIP-210 activation
* 8m -> 5m
* Temporarily add back eip210 transition so we can get test passed
* Add eip210_test and remove eip210 transition from const_test
* Add constantinople conf to EvmTestClient. (#9570)
* Add constantinople conf to EvmTestClient.
* Skip some test to update submodule etheureum/tests submodule to latest.
* Put skipping 'under issue' test behind a feature.
* Change blockReward for const-test to pass ethereum/tests
* Update tests to new constantinple definition (change of reward at block
5).
Switch 'reference' to string, that way we can include issues from others
repo (more flexible)Update tests to new constantinple definition (change
of reward at block 5).
Switch 'reference' to string, that way we can include issues from others
repo (more flexible).
* Fix modexp and bn128_mul gas prices in chain config
* Changes `run_test_path` method to append its directory results (without
that it stop testing at the first file failure).
Add some missing tests.
Add skip for those (block create2 is one hundred percent false but on
hive we can see that geth and aleth got similar issue for this item).
* retab current.json
* Update reference to parity issue for failing tests.
* Hardfork the testnets (#9562)
* ethcore: propose hardfork block number 4230000 for ropsten
* ethcore: propose hardfork block number 9000000 for kovan
* ethcore: enable kip-4 and kip-6 on kovan
* etcore: bump kovan hardfork to block 9.2M
* ethcore: fix ropsten constantinople block number to 4.2M
* ethcore: disable difficulty_test_ropsten until ethereum/tests are updated upstream
* Don't hash the init_code of CREATE. (#9688)
* Implement CREATE2 gas changes and fix some potential overflowing (#9694)
* Implement CREATE2 gas changes and fix some potential overflowing
* Ignore create2 state tests
* Split CREATE and CREATE2 in gasometer
* Generalize rounding (x + 31) / 32 to to_word_size
* ethcore: delay ropsten hardfork (#9704)
* Add hardcoded headers (#9730)
* add foundation hardcoded header #6486017
* add ropsten hardcoded headers #4202497
* add kovan hardcoded headers #9023489
* gitlab ci: releasable_branches: change variables condition to schedule (#9729)
* HF in POA Core (2018-10-22) (#9724)
https://github.com/poanetwork/poa-chain-spec/pull/87
* 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)
* 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
* Add light client TODO item
* Move existing total-difficulty-based fork choice check to Engine
* Abstract total difficulty and block provider as Machine::BlockMetadata and Machine::BlockProvider
* Decouple "generate_metadata" logic to Engine
* Use fixed BlockMetadata and BlockProvider type for null and instantseal
In this way they can use total difficulty fork choice check
* Extend blockdetails with metadatas and finalized info
* Extra data update: mark_finalized and update_metadatas
* Check finalized block in Blockchain
* Fix a test constructor in verification mod
* Add total difficulty trait
* Fix type import
* Db migration to V13 with metadata column
* Address grumbles
* metadatas -> metadata
* Use generic type for update_metadata to avoid passing HashMap all around
* Remove metadata in blockdetails
* [WIP] Implement a generic metadata architecture
* [WIP] Metadata insertion logic in BlockChain
* typo: Value -> Self::Value
* [WIP] Temporarily remove Engine::is_new_best interface
So that we don't have too many type errors.
* [WIP] Fix more type errors
* [WIP] ExtendedHeader::PartialEq
* [WIP] Change metadata type Option<Vec<u8>> to Vec<u8>
* [WIP] Remove Metadata Error
* [WIP] Clean up error conversion
* [WIP] finalized -> is_finalized
* [WIP] Mark all fields in ExtrasInsert as pub
* [WIP] Remove unused import
* [WIP] Keep only local metadata info
* Mark metadata as optional
* [WIP] Revert metadata db change in BlockChain
* [WIP] Put finalization in unclosed state
* Use metadata interface in BlockDetail
* [WIP] Fix current build failures
* [WIP] Remove unused blockmetadata struct
* Remove DB migration info
* [WIP] Typo
* Use ExtendedHeader to implement fork choice check
* Implement is_new_best using Ancestry iterator
* Use expect instead of panic
* [WIP] Add ancestry Engine support via on_new_block
* Fix tests
* Emission of ancestry actions
* use_short_version should take account of metadata
* Engine::is_new_best -> Engine::fork_choice
* Use proper expect format as defined in #1026
* panic -> expect
* ancestry_header -> ancestry_with_metadata
* Boxed iterator -> &mut iterator
* Fix tests
* is_new_best -> primitive_fork_choice
* Document how fork_choice works
* Engine::fork_choice -> Engine::primitive_fork_choice
* comment: clarify types of finalization where Engine::primitive_fork_choice works
* Expose FinalizationInfo to Engine
* Fix tests due to merging
* Remove TotalDifficulty trait
* Do not pass FinalizationInfo to Engine
If there's finalized blocks in from route, choose the old branch without calling `Engine::fork_choice`.
* Fix compile
* Fix unused import
* Remove is_to_route_finalized
When no block reorg passes a finalized block, this variable is always false.
* Address format grumbles
* Fix docs: mark_finalized returns None if block hash is not found
`blockchain` mod does not yet have an Error type, so we still temporarily use None here.
* Fix inaccurate tree_route None expect description
* 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
* WIP
* Replace Rlp with UntrustedRlp in views, explicity unwrap with expect
First pass to get it to compile. Need to figure out whether to do this or to propogate Errors upstream, which would require many more changes to dependent code. If we do this way we are assuming that the views are always used in a context where the rlp is trusted to be valid e.g. when reading from our own DB. So need to fid out whether views are used with data received from an untrusted (e.g. extrernal peer).
* Remove original Rlp impl, rename UntrustedRlp -> Rlp
* Create rlp views with view! macro to record debug info
Views are assumed to be over valid rlp, so if there is a decoding error we record where the view was created in the first place and report it in the expect
* Use $crate in view! macro to avoid import, fix tests
* Expect valid rlp in decode functions for now
* Replace spaces with tabs in new file
* Add doc tests for creating views with macro
* Update rlp docs to reflect removing of UntrustedRlp
* Replace UntrustedRlp usages in private-tx merge
* 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
* aura: broadcast empty step message instead of sealing empty block
* aura: add empty_step messages to seal
* aura: include parent_hash in empty step message
* aura: verify received empty step messages
* aura: verify empty step messages in block
* aura: fix dead lock on empty_steps
* aura: fix EmptyStep Encodable
* aura: take number of empty steps into account in chain score
* aura: use empty step signers for finality
* aura: add empty "empty step" messages to seal when reading from spec
* aura: fix EmptyStep rlp encoding
* aura: use Vec<u8> instead of Bytes
* aura: fix block empty step verification
* Update .gitlab-ci.yml
fix lint
* aura: fix accumulation of empty step signatures for finality
* aura: include empty steps in seal signature
* aura: configurable max number of empty steps
* engine: pass block header to seal_fields method
This is necessary to make the number of seal fields dynamic,
e.g. activating a transition on a certain block number that changes
the seal.
* aura: add transition to enable empty step messages
* aura: clear old empty step messages on verify_block_external
* aura: ignore empty step messages from the future
* aura: report skipped primaries when empty steps are not enabled
* aura: fix tests
* aura: report misbehavior
* aura: add tests for rolling finality with multiple signatures
* engine: fix validator set test
In this test the block validation wasn't failing because the block was in the
future (expected failure) but was instead failing because the author of the
block isn't the expected authority. Since we added reporting of blocks produced
by the wrong authority this test started failing.
* aura: reward all the authors of empty step messages
* aura: fix reward attribution for new blocks
* aura: add tests for empty steps broadcasting and inclusion in blocks
* aura: reduce size of empty step messages in seal
* aura: add test for empty step inclusion in blocks
* aura: add test for rewarding of empty steps
* aura: add test for empty steps validation
* aura: fix rlp encoding of sealed empty step
* aura: fix grumbles
* 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 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
