Commit Graph

235 Commits

Author SHA1 Message Date
André Silva b457f46c81 ethash: implement Progpow (#9762)
* ethash: initial implementation of progpow

* progpow: use wrapping arithmetic

* progpow: cleanup comments

* progpow: fix keccak_f800

* progpow: reorder definitions

* progpow: general fixing

* progpow: add basic tests from geth

* progpow: generate c_dag and add test

* progpow: fix progpow_init and progpow_loop

* progpow: fix and add new test

* progpow: tabify

* progpow: add shared testvectors from geth and aleth

* progpow: add benchmarks

* progpow: don't read bytes from dag

* ethash: use criterion for progpow benchmarks

* progpow: dont borrow hash on fnv1a_hash

* progpow: don't borrow operand on progpow merge

* progpow: hardcode dag lookup function

we only support light verification anyway

* progpow: read double words directly from the dag

* progpow: inline some small functions

* progpow: remove some bounds checking from the main loop

* progpow: remove unreachable match cases

* progpow: remove bounds check in keccak_f800_round

* progpow: fix ptr::swap

* progpow: force loop unroll in keccak_f800_round

* progpow: remove unnecessary branching in progpow_loop

* progpow: force loop unroll in fill_mix

* progpow: silence unused warning

* progpow: dont run last keccak_f800_round out of the loop

rustc generates the same assembly, it unrolls the loop

* progpow: fix output of keccak_f800_short

* ethcore: support progpow in ethash engine

* ethash: fix typo

* ethcore, ethash: fix tests

* json: fix ethash spec tests

* ethash: update quick_get_difficulty for progpow

* ethash: drop light cache on progpow transition block

* ethash: fix quick_get_difficulty tests

* progpow: update to spec v0.9.0

* progpow: update to spec v0.9.1

* progpow: update to spec v0.9.2

* ethash: rename progpow benchmarks

* fix Cargo.lock bad merge

* ethash: only export modules for benchmarks

* ethash: progpow: remove unsafe unchecked indexing

* ethash: create enum for pow algorithm

* ethash: box the progpow cdag

* ethash: skip slow progpow test vectors on ci

* ethash: don't skip progpow test vectors

they don't take too long when running in release mode which is the case
for CI.

* ethash: progpow: update copyright date

Co-Authored-By: andresilva <andre.beat@gmail.com>

* ethcore: remove verification of ci-skip-tests on non-test builds
2019-02-20 10:05:11 +01:00
Hernando Castano 6dfc1bd474 Add Statetest support for Constantinople Fix (#10323)
* Update Ethereum tests repo to v6.0.0-beta.3 tag

* Add spec for St.Peter's / ConstantinopleFix statetests
2019-02-11 17:13:36 +01:00
Tomasz Drwięga d5c19f8719 Deprecate account management (#10213)
* Extract accounts from ethcore.

* Fix ethcore.

* Get rid of AccountProvider in test_helpers

* Fix rest of the code.

* Re-use EngineSigner, fix tests.

* Simplify EngineSigner to always have an Address.

* Fix RPC tests.

* Add deprecation notice to RPCs.

* Feature to disable accounts.

* extract accounts in RPC

* Run with accounts in tests.

* Fix RPC compilation and tests.

* Fix compilation of the binary.

* Fix compilation of the binary.

* Fix compilation with accounts enabled.

* Fix tests.

* Update submodule.

* Remove android.

* Use derive for Default

* Don't build secretstore by default.

* Add link to issue.

* Refresh Cargo.lock.

* Fix miner tests.

* Update rpc/Cargo.toml

Co-Authored-By: tomusdrw <tomusdrw@users.noreply.github.com>

* Fix private tests.
2019-02-07 14:34:24 +01:00
Wei Tang fb07ffa676 Add EIP-1283 disable transition (#10214) 2019-01-21 12:22:29 +01:00
Afri Schoedon 7c335e8764
misc: bump license header to 2019 (#10135)
* misc: bump license header to 2019

* misc: remove_duplicate_empty_lines.sh

* misc: run license header script

* commit cargo lock
2019-01-07 11:33:07 +01:00
Tomasz Drwięga 81b7698428 Strict empty steps validation (#10041)
* Add two failings tests for strict empty steps.

* Implement strict validation of empty steps.
2018-12-10 18:58:38 +00:00
Wei Tang f092c10de5
Remove tendermint engine support (#9980)
* Remove tendermint engine support

* Remove tendermint test json spec

* Fix ethcore test compile

* Remove tendermint test in sync
2018-11-29 06:47:11 +08:00
Wei Tang 14c9cbd40e
Deny unknown fields for chainspec (#9972)
* Add deny_unknown_fields to chainspec

* Add tests and fix existing one

* Remove serde_ignored dependency for chainspec

* Fix rpc test eth chain spec

* Fix starting_nonce_test spec
2018-11-28 06:21:31 +08:00
cheme a511264433 Implement NoProof for json tests and update tests reference (replaces #9744) (#9814)
* Update test reference.
Block test are really not working so I disabled a few by commenting
directly in source.

* Move ethtest commit cursor.

* Implements 'NoProof' engine from https://github.com/ethereum/tests/issues/464 .

Since tests has been regenerated those one were failing on block
difficulty check.

Update ethereum/tests, waiting for cost fix (block test are still
commented).

* Update tests submodule reference to latest (all test passing except an
identified case).
Fix block reward of constantinople json.

* Restore broken test by using old json tests files.

* Use CanonNoSeal instead of a custom engine, still have to include some
additional tests code.

* Gas upper limit check in json_chain test was bad, moving the test to
verification, the test is running in `verify_header_param`.
Note that test was previously only for ethash, and now for any engine.

* Restore old behavior (gas uper limit only for ethash engine), at the
cost of an additional trait method.

* Proper rpc test fix.

* Update tests submodule, add SStore bug tests.

* Fix json issue tabulation.
Update tests submodule to latest master (lot of new sstore tests
passing)

* Switch ethereum/tests to tag 6.0.0-beta.1 (no tests changes from latest
synch).

* Display hex with separator, use indirection instead of clone for copy
types.
2018-11-01 11:04:32 +01:00
Wei Tang 05be4b5b0e
Clean up serde rename and use rename_all = camelCase when possible (#9823)
* Clean up serde rename and use rename_all = camelCase when possible

* snake_case for pricing

* Use camelcase for engine

* Use camel case for seal

* Use camel case for validator set

* Use camel case for confirmation payload

* Use camel case for consensus status

* Use camel case for nodekind

* Use kebab case for provenance

* Use camel case for pubsub

* Use lowercase and camelcase for trace

* Use camel case for whisper

* rename Ethash as irregular name
2018-10-29 23:49:04 +08:00
Andronik Ordian 6643b6a306 Revert "prevent zero networkID (#9763)" (#9815)
This reverts commit 73f08b376f.
2018-10-27 02:53:19 +08:00
Seun LanLege 73f08b376f prevent zero networkID (#9763)
* prevent zero networkID, closes #8345

Signed-off-by: Seun LanLege <seunlanlege@gmail.com>

* updated networkID of olymic chain spec

Signed-off-by: Seun LanLege <seunlanlege@gmail.com>
2018-10-17 07:47:11 +08:00
Marek Kotewicz 6b286a5dee make instantSeal engine backwards compatible, closes #9696 (#9700) 2018-10-04 15:08:20 +02:00
André Silva 5b87327a43 ethcore: mcip3 block reward contract (#9605)
* Use static call and apparent value transfer for block reward contract code

* ethcore: implement musicoin block reward logic with contract

* ethcore: update musicoin block reward contract bytecode

* ethcore: add comment with source of musicoin block reward contract

* ethcore: remove unused mcip6_byz chain spec
2018-10-03 12:44:43 +01:00
cheme 692d5b4e08 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.
2018-09-25 12:24:40 +02:00
Tomasz Drwięga 6e5a1c00dc 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
2018-09-10 22:38:30 +02:00
Wei Tang e1f333021f Generalized blockReward and difficultyBombDelays config (#9480)
* Implement multi blockReward

* Implement difficultyBombDelays

* Fix json crate compile

* json keys can only be string
2018-09-09 00:38:07 +02:00
Wei Tang 915c366056
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
2018-09-07 18:51:08 +08:00
Wei Tang 5752869824 Support millisecond timestamp for instant seal engine (#9469)
* Support millisecond timestamp for instant seal engine

* Forgot to checkin instant_seal mod

* Fix instant seal config

* Fix json crate compile

* Fix private_spec.json

* Option<bool> -> bool
2018-09-06 11:38:00 +02:00
David 72fd1fa58d
Fetch `parity-common` crates from crates.io (#9410)
* Fetch `parity-common` crates from crates.io

* Add doc tests from `patricia-trie` to `patricia-trie-ethereum`
Fix/update a few deps

* [ethkey] upgrade ethereum-types

* [whisper] update deps

* [network] deps

* [network-devp2p] deps

* [journaldb] deps

* [fastmap] deps

* [miner] deps and test fixes

* [machine] deps

* [json] deps

* [hw] deps

* [ethash] deps

* [registrar] deps

* Update a few more dependencies with new ethabi-*

* [updater] Update deps

* deps

* [ethcore] Update deps

* Use new parity-snappy and parity-rocksdb crates

* Updated submodules

* Use parity-snappy 0.1

* Use kvdb-rocksdb 0.1.2

* Don't use latest ethereum/tests

* Fix merge conflicts errors

* Remove superseeded comment

* Address grumbles: add newlines, add/remove spaces
2018-09-04 20:13:51 +02:00
Wei Tang caca3a8048
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
2018-08-31 23:43:51 +08:00
Wei Tang 74ce0f738e Add block reward contract config to ethash and allow off-chain contracts (#9312)
This adds block reward contract config to ethash. A new config `blockRewardContractCode` is also added to both Aura and ethash. When specified, it will execute the code directly and overrides any `blockRewardContractAddress` config. Having this `blockRewardContractCode` config allows chains to deploy hard fork by simply replacing the current config value, without the need from us to support any `multi` block reward scheme.
2018-08-29 16:17:18 +01:00
Alexey 5ed2527663 `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)
2018-08-24 18:03:46 +02:00
André Silva 4eab8672b8 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
2018-08-10 15:36:19 +02:00
André Silva 712101b63d ethcore: add transition flag for transaction permission contract (#9275)
* ethcore: add transition flag for transaction permission contract

* ethcore: fix transaction permission contract tests
2018-08-07 15:18:19 +01:00
Wei Tang 1f18dbb17c
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
2018-08-07 20:52:23 +08:00
Wei Tang e8b13cb77e
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
2018-08-06 23:15:52 +08:00
Wei Tang 29baccd857
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
2018-07-31 13:27:57 +08:00
Niklas Adolfsson 98b7c07171 Update `license header` and `scripts` (#8666)
* 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
2018-06-04 10:19:50 +02:00
Wei Tang 3fde07b2e1 Refactor EIP150, EIP160 and EIP161 forks to be specified in CommonParams (#8614)
* Allow post-homestead forks to be specified in CommonParams

* Fix all json configs

* Fix test in json crate

* Fix test in ethcore

* Fix all chain configs to use tabs

Given we use tabs in .editorconfig and the majority of chain configs.
This change is done in Emacs using `mark-whole-buffer` and `indent-region`.
2018-05-22 12:24:09 +08:00
Wei Tang a4c7843a07 EIP 145: Bitwise shifting instructions in EVM (#8451)
* Add SHL, SHR, SAR opcodes

* Add have_bitwise_shifting schedule flag

* Add all EIP tests for SHL

* Add SHR implementation and tests

* Implement SAR and add tests

* Add eip145transition config param

* Change map_or to map_or_else when possible
2018-05-05 10:23:50 +02:00
Anton Gavrilov 01d399ad66 Return error if RLP size of transaction exceeds the limit (#8473)
* Return error if RLP size of transaction exceeds the limit

* Review comments fixed

* RLP check moved to verifier, corresponding pool test added
2018-04-27 15:02:45 +02:00
Ayrat Badykov baeda93474 fix typos in vm description comment (#8446) 2018-04-24 14:25:27 +02:00
André Silva 24f6d8296b Block reward contract (#8419)
* engine: add block reward contract abi and helper client

* aura: add support for block reward contract

* engine: test block reward contract client

* aura: test block reward contract

* engine + aura: add missing docs

* engine: share SystemCall type alias

* aura: add transition for block reward contract

* engine: fix example block reward contract source link and bytecode
2018-04-20 12:32:00 +02:00
Andronik Ordian 811d165458 Validate if gas limit is not zero (#8307) 2018-04-05 00:14:59 +09:00
Tomasz Drwięga 9108a3bb50 Bump ethabi & ethereum-types. (#8258)
* Bump ethabi & ethereum-types.

* Fix test.

* Fix hex encodings.
2018-04-02 12:12:52 +01:00
Pierre Krieger 04931618ed
Implement hardcoded sync in the light client (#8075)
* Implement hardcoded sync

* Fix concerns

* Remove artifact

* Fix cli tests

* Fix compilation

* Update hardcoded sync block

* Don't use any data fetch for the light service
2018-03-27 13:56:59 +02:00
Tomasz Drwięga d716bae3d5 Max code size on Kovan (#8067)
* Enable code size limit on kovan

* Fix formatting.
2018-03-07 15:11:09 +01:00
Nikolay Volf 684322cd6f Kovan WASM fork code (#7849)
* kovan fork code

* introduce ethcore level vm_factory and let it fail

* fix json tests

* wasmcosts as option

* review changes

* wasm costs in parser

* fix evm tests

* review fixes

* fix test

* remove redundant json field
2018-02-19 12:27:42 +01:00
Lorenzo Manacorda e630f647d1 spec: Validate required divisor fields are not 0 (#7933)
* Add validate_non_zero function

It's used to validate that a Spec's uint field used as a divisor is not zero.

* Add deserialize_with to gas_limit_bound_divisor

Prevents panics due to divide-by-zero on the gas_limit_bound_divisor
field.

* Add deserialize_with to difficulty_bound_divisor

Prevents panics due to divide-by-zero on the difficulty_bound_divisor
field.

* Add validate_optional_non_zero function

Used to validate Option<Uint> divisor fields.

* Use deserialize_with on optional divisor fields.

* Add #[serde(default)] attribute to divisor fields

When using `#[serde(deserialize_with)]`, `#[serde(default)]` must be specified so that missing
fields can be deserialized with the deserializer for `None`.
2018-02-19 10:36:34 +01:00
André Silva aab63c339d Aura: Broadcast empty step messages instead of creating empty blocks (#7605)
* 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
2018-02-15 01:39:29 +01:00
Marek Kotewicz c060d9584d
ethabi version 5 (#7723)
* 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
2018-02-09 09:32:06 +01:00
Marek Kotewicz 668d910c44
bloom refactor (#7475)
* ethereum-types refactor in progress

* ethereum-types refactor in progress

* ethereum-types refactor in progress

* ethereum-types refactor in progress

* ethereum-types refactor finished

* cleanup bloom mess

* simplify usage of Bloom in few places

* removed obsolete util/src/lib.rs

* removed commented out code

* ethereum-types 0.1.4

* updated ethereum-types and tiny-keccak
2018-01-14 22:43:28 +01:00
Marek Kotewicz e95b093483 dissolve util (#7460)
* ethereum-types refactor in progress

* ethereum-types refactor in progress

* ethereum-types refactor in progress

* ethereum-types refactor in progress

* ethereum-types refactor finished

* removed obsolete util/src/lib.rs

* removed commented out code
2018-01-10 15:35:18 +03:00
Afri Schoedon 36e230ee16
Expanse Byzantium update w/ correct metropolis difficulty increment divisor (#7463)
* Byzantium Update for Expanse

Here the changes go. Hope I didnt miss anything.

* expip2 changes - update duration limit

* Fix missing EXPIP-2 fields

* Format numbers as hex

* Fix compilation errors

* Group expanse chain spec fields together

* Set metropolisDifficultyIncrementDivisor for Expanse

* Revert #7437

* Add Expanse block 900_000 hash checkpoint
2018-01-05 13:49:07 +01:00
Marek Kotewicz 7c24d0665e
Merge pull request #7355 from paritytech/td-clippy
Get rid of clippy remainings.
2017-12-22 07:09:26 -04:00
Yurii Rashkovskii d5b81ead71 Problem: AuRa's unsafeties around step duration (#7282)
Firstly, `Step.duration_remaining` casts it to u32, unnecesarily
limiting it to 2^32. While theoretically this is "good enough" (at 3
seconds steps it provides room for a little over 400 years), it is
still a lossy way to calculate the remaining time until the next step.

Secondly, step duration might be zero, triggering division by zero
in `Step.calibrate`

Solution: rework the code around the fact that duration is
typically in single digits and never grows, hence, it can be represented
by a much narrower range (u16) and this highlights the fact that
multiplying u64 by u16 will only result in an overflow in even further
future, at which point we should panic informatively (if anybody's
still around)

Similarly, panic when it is detected that incrementing the step
counter wrapped around on the overflow of usize.

As for the division by zero, prevent it by making zero an invalid
value for step duration. This will make AuRa log the constraint
mismatch and panic (after all, what purpose would zero step duration
serve? it makes no sense within the definition of the protocol,
as finality can only be achieved as per the specification
if messages are received within the step duration, which would violate
the speed of light and other physical laws in this case).
2017-12-21 14:59:09 +01:00
Tomasz Drwięga 00883e477a
Get rid of clippy remainings. 2017-12-21 11:27:26 +01:00
Tomasz Drwięga 7e3872fddc Maximum uncle count transition (#7196)
* Enable delayed maximum_uncle_count activation.

* Fix tests.

* Defer kovan HF.
2017-12-05 15:57:45 +01:00
keorn 261c0d5368 no default uncles 2017-11-09 23:56:02 +00:00