* fix(extract `timestamp_checked_add` as lib)
* fix(whisper types): remove unused `EmptyTopics`
* fix(time-lib): feature-flag to use time-lib or std
This commit adds conditional compilation checks that falls back to `our time-lib` when
`time_checked_add` is not available in the standard library
Note, `time_checked_add` covers both `checked_add` and `checked_sub`
* fix(grumble): use cfg_attr to define rustc feature
* 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
Define a new `enum` where devp2p subprotocol packet ids (currently eth and par) are defined. Additionally provide functionality to query id value and protocol of a given id object.
* Add function to update minimum gas price
* Update TestMinerService to handle min_gas_price changes
* Place minimum gas price test behind feature flag
* Update check for fixed gas pricer to be more explicit
* Use errors::unsupported instead of errors::request_rejected
* Add test that fails to set minimum gas price
* Fix test that should fail when setting new gas price
* Put dev dependencies behind feature flag
* Fix deadlock in set_minimal_gas_price()
* Update RPC tests with mocked error response
* Remove unnecessary cfg flag
* Remove duplicate crate imports
* fix(light-rpc): Make `light_sync` generic
The motivation behind this change is to easily mock `light-sync` to make it possible to enable `rpc-integration` tests
for the light-client.
Currently the `rpc's` requires the concrete type `sync::LightSync` which makes it very hard to do so
* fix(bad merge)
* Make the specification of the protocol to which a packet_id belongs to
explicit when calling "SyncRequester::send_packet".
* Remove "SyncIO::send" and leave only "SyncIO::send_protocol"
* Adapt tests to new code.
* Strengthen tests to check if packet_id and protocol match when sending
a devp2p packet.
* Increase the number of block bodies requested during Sync.
* Increase the number of block bodies requested during Sync.
* Check if our peer is an older parity client with the bug
of not handling large requests properly
* Add a ClientVersion struct and a ClientCapabilites trait
* Make ClientVersion its own module
* Refactor and extend use of ClientVersion
* Replace strings with ClientVersion in PeerInfo
* Group further functionality in ClientCapabilities
* Move parity client version data from tuple to its own struct.
* Implement accessor methods for ParityClientData and remove them
from ClientVersion.
* Minor fixes
* Make functions specific to parity return types specific to parity.
* Test for shorter ID strings
* Fix formatting and remove unneeded dependencies.
* Roll back Cargo.lock
* Commit last Cargo.lock
* Convert from string to ClientVersion
* * When checking if peer accepts service transactions just check
if it's parity, remove version check.
* Remove dependency on semver in ethcore-sync
* Remove unnecessary String instantiation
* Rename peer_info to peer_version
* Update RPC test helpers
* Simplify From<String>
* Parse static version string only once
* Update RPC tests to new ClientVersion struct
* Document public members
* More robust parsing of ID string
* Minor changes.
* Update version in which large block bodies requests appear.
* Update ethcore/sync/src/block_sync.rs
Co-Authored-By: elferdo <elferdo@gmail.com>
* Update util/network/src/client_version.rs
Co-Authored-By: elferdo <elferdo@gmail.com>
* Update util/network/src/client_version.rs
Co-Authored-By: elferdo <elferdo@gmail.com>
* Update tests.
* Minor fixes.
* 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.
* Make check_epoch_end_signal to only use immutable data
* Move check_epoch_end_signals out of commit_block
* Make check_epoch_end_signals possible to fail
* Actually return the error from check_epoch_end_signals
* Remove a clone
* Fix import error
* Patch available private contracts during private transaction
* Key acl ABI added
* Work with secret store keys moved to the separate struct
* Private tx test refactored
* Revert "Private tx test refactored"
This reverts commit 476c132d692c7a886bc7b7cd7fe47b3d7692bd63.
* Test for calling private contract from another one added
* Test fixed
* Redundant tab removed
* ACL contract processing fixed, test added
* Merge with head
* Expect replaced with closure
* Allow specifying local accounts via CLI
* Add `tx-queue-locals` CLI option
* ethcore: modify miner to check options vec before importing transaction
* modify tests (ethcore/parity)
Resolves#9634
* fix formatting
* fixes: Make prefer HashSet over Vec<>, add test, comment formatting
* Update ethcore/src/miner/miner.rs
Co-Authored-By: insipx <aplaza@liquidthink.net>
* Fix comments and add helper for set->vec conversion
* remove blank line from use statement
* fix helper test
* formatting
* fix test to pass on nightly
* revert test fix for nightly
* Tx permission contract improvement
* Take in account zero gas price certification when doing transact_contract
* DRY in ServiceTransactionChecker
* Fix typos and regroup mod
* Fix imports
* Simplify code in struct instantiation
Co-Authored-By: VladLupashevskyi <vlad@lupashevskyi.com>
* fix(ManageNetwork): replace Range -> RangeIncls
Fixes `TODO: Range should be changed to RangeInclusive once stable (https://github.com/rust-lang/rust/pull/50758)`
* fix(tests)
* fix(grumbles): off-by-one error in debug_asserts
* RangeInclusive::end() is inclusive which means that if start and end is equal the `debug_assert(range.end() >
range.start()` will fail which is shouldn't
* Remove re-export of `CallContract` and `RegistryInfo` from `ethcore/client`
* Remove CallContract and RegistryInfo re-exports again
This was missed while fixing merge conflicts
* added BlockChainReset trait, client impl, and cli interface
* show block hashes to be deleted and new best block, update best block in db, better cli interface
* delete BlockNumber from COL_EXTRA
* add TODO comment
* add BlockReciepts to imports
* refactor block_headers_from_best_block, better cli documentation
* exit gracefully if reset arg isn't supplied
* fix cli usage macro
* removed stray int literals
* use Vec::with_capacity
Co-Authored-By: seunlanlege <seunlanlege@gmail.com>
* cast n to usize
* correct imports
* make db reset arg required
* Add is_base_storage_root_unchanged
* Fix compile, use a shortcut for check, and remove ignored tests
* Add a warn!
* Update ethereum/tests to v6.0.0-beta.2
* grumble: use {:#x} instead of 0x{:x}
Co-Authored-By: sorpaas <accounts@that.world>
currently trace_filter can't return failed contract creation transaction
but trace_block can query the failed contract creation transaction.it
because the logic of parity-ethereum/ethcore/src/trace/types/filter.rs
Line 109 in 9982eba
```
_ => false
```
this patch correct the logic:
```
_ => self.to_address.matches_all()
```
Signed-off-by: Deshi Xiao <xiaods@gmail.com>
* Make sure parent block is not in importing queue when importing ancient blocks
* Clear queue when an ancient import fails
* Lock only once in clear
* Add comments why queued check is needed
* Should push the value back to the queue
* Directly check in chain.read()
* Remove extra empty line
* Revert unused verification change
* Replace ethcore-logger with env-logger.
* Fix logger initialization in WASM tests.
* uncomment logger initialization in secret store
* Don't use ethcore-logger in whisper.
* Move ethcore-logger within parity dir.
* Uncomment rest from secret-store.
* Use `let _ =` in private_contract for consistency
* `ok()` to `let _ =` fix in service
* Use `let _ = ` for state_db
* Add private tx enabled flag into status packet
* Error log added for the case with no peers available
* Add flag only for supported protocol versions
* Work with private handler refactored
* Log target changed
* Cargo.lock updated
* ethcore: update hardcoded headers for foundation
* ethcore: update hardcoded headers for ropsten
* ethcore: update hardcoded headers for kovan
* ethcore: use consistant formatting
* ethcore: restore spaces after colon in chain spec
* ethcore: fix bootnodes in chain specs
* ethcore: fix bootnodes in chain specs
* ethcore: enforce newline at the end of chainspecs
* fix#10125
fix service transaction version detection if --identity is enabled, change test to match how --identity actually works
* fix wrong var
* get the index of v, not /
* idx, not idx.len()
* Update ethcore/sync/src/chain/propagator.rs
Co-Authored-By: joshua-mir <43032097+joshua-mir@users.noreply.github.com>
* Update ethcore/sync/src/chain/propagator.rs
Co-Authored-By: joshua-mir <43032097+joshua-mir@users.noreply.github.com>
* change version prefix to a const
* space
Co-Authored-By: joshua-mir <43032097+joshua-mir@users.noreply.github.com>
Fix: new blocks notifications sometimes missing in pubsub RPC
Implement new struct to pass to `new_blocks()` with extra parameter - `has_more_blocks_to_import`, which was previously used to determine whether the notification should be sent. Now it's up to each implementation to decide what to do.
Updated all implementations to behave as before, except `eth_pubsub`, which will send notification even when the queue is not empty.
Update tests.
- Refactor (and rename crate) and implement RwLock len cache.
- improve docs
- update ethcore verification queue to new version
- Implement Default, From, also derive Debug
- update: parking_lot to 0.7
* ethcore: change blockreward to 2e18 for foundation after constantinople
* ethcore: delay diff bomb by 2e6 blocks for foundation after constantinople
* ethcore: enable eip-{145,1014,1052,1283} for foundation after constantinople
If system uptime is less than the duration in the test, thread
will panic due to: 'overflow when subtracting duration from instant'.
Changed duration to 20 seconds to make it unlikely the test will
fail due to this condition.
Since no operations that carry a similar risk of panic occur outside
of the tests, it doesn't seem warranted to depend on an external crate
to fix this.
New util LenCachingMutex can be used in place of a Mutex, when working
with collections, or other types with a len() method. When
the Guard is dropped, the value returned from len() is stored
into an AtomicUsize and can be queried using load_len() without
needing to lock the Mutex. Implementations for ```Vec``` and
```VecDeque```.
Now used in [Verification](4ded4181a6/ethcore/src/verification/queue/mod.rs (L196)) so that calls to ```VerificationQueue.queue_info()```
no longer require locks.
* Version and notification for private contract wrapper added
* Error handling improved
* Style for comments in file fixed
* TODO issue added into comments
* Add `is_idle` to LightSync to check importing status
* Use SyncStateWrapper to make sure is_idle gets updates
* Update is_major_import to use verified queue size as well
* Add comment for `is_idle`
* Add Debug to `SyncStateWrapper`
* `fn get` -> `fn into_inner`
* Add a dump of the state at the end of transaction for --json-test.
Also fixes json-test output on finish, and allow to put both on err or
out (--out-only and --err-only).
* Dump state resolution from trie, function behind evm-bin feature to avoid misuse.
* Rename 'slow' method to 'to_pod_full'.
Use cache first in 'to_pod_full', for in between commits case.
Change dump activation to use a function pointer instead.
* Fix tests.
* Query and add storage values to dump.
* Switch to use `require` method, even if less efficient it is better in
this case to reuse existing code.
Reuse of `storage_at` was not easy in this case (could not iterate and
use the method at the same time (refcell mutable borrow panics) so
keeping code as is.
* Switch to returning error.
Use 'base_storage_root' instead of 'storage_root'.
Added a test, it will only execute with json-test in ci, or when launch
with the feature.
* Renaming of command line parameters.
Comments fixes.
Minor code changes.
* Fix evmbin cmd parsing test.
* README update.
* Fix extra space and avoid clone call on copiable address.
* Revert test submodule.
* Revert wasm-test submodule.
* Use map_or instead of map + unwrap_or
* restore tests submodule
* PIP Table Cost relative to average peers instead of max peers
* Add tracing in PIP new_cost_table
* Update stat peer_count
* Use number of leeching peers for Light serve costs
* Fix test::light_params_load_share_depends_on_max_peers (wrong type)
* Remove (now) useless test
* Remove `load_share` from LightParams.Config
Prevent div. by 0
* Add LEECHER_COUNT_FACTOR
* PR Grumble: u64 to u32 for f64 casting
* Prevent u32 overflow for avg_peer_count
* Add tests for LightSync::Statistics
* Rename db_restore => client
* First step: make it compile!
* Second step: working implementation!
* Refactoring
* Fix tests
* PR Grumbles
* PR Grumbles WIP
* Migrate ancient blocks interating backward
* Early return in block migration if snapshot is aborted
* Remove RwLock getter (PR Grumble I)
* Remove dependency on `Client`: only used Traits
* Add test for recovering aborted snapshot recovery
* Add test for migrating old blocks
* Fix build
* PR Grumble I
* PR Grumble II
* PR Grumble III
* PR Grumble IV
* PR Grumble V
* PR Grumble VI
* Fix one test
* Fix test
* PR Grumble
* PR Grumbles
* PR Grumbles II
* Fix tests
* Release RwLock earlier
* Revert Cargo.lock
* Update _update ancient block_ logic: set local in `commit`
* Update typo in ethcore/src/snapshot/service.rs
Co-Authored-By: ngotchac <ngotchac@gmail.com>
* ethcore: use Machine::verify_transaction on parent block
also fixes off-by-one activation of transaction permission contract
* ethcore: clarify call to verify_transaction
* Add FIXME link for a state mod statement
* Remove unused benches feature in ethcore
* Fix evm benches compile
* Fix ethash benches compile
* Switch to criterion
* 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.
* Fixing and disabling some tests for windows 10 compatibility.
* Few adjustment for windows in tests (eg bigger timeout for keyserver tests)
* Spaces and temporary single thread ci (to be able to spot the error).
* 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
* aura: emit ancestry actions for finalizing blocks
* aura: refactor is_epoch_end to get finalized blocks as argument
* ethcore: add is_epoch_end_light method to Engine
The full client now tracks finality by querying the engine on each block import,
and it also persists the finalization state to the DB. For the light client
current it doesn't persist finality information and only keeps track of finality
for epoch signals, by calling `is_epoch_end_light`. This method implements the
previously existing logic of building finality for all the blocks in the current
epoch and then checking the finalized blocks against the transition store.
* ethcore: allow finalizing current block
* aura: fix construction of finality proof
* aura: fix warnings
- missing docs for is_epoch_end_light
- unused method unfinalized_hashes in RollingFinality
* aura: fix clone on copy types
* If no subchain heads then try a different peer
* Add log when useless chain head
* Restrict ChainHead useless peer to ancient blocks
* sync: replace `limit_reorg` with `block_set` condition
* Replace `tokio_core` with `tokio`.
* Remove `tokio-core` and replace with `tokio` in
- `ethcore/stratum`
- `secret_store`
- `util/fetch`
- `util/reactor`
* Bump hyper to 0.12 in
- `miner`
- `util/fake-fetch`
- `util/fetch`
- `secret_store`
* Bump `jsonrpc-***` to 0.9 in
- `parity`
- `ethcore/stratum`
- `ipfs`
- `rpc`
- `rpc_client`
- `whisper`
* Bump `ring` to 0.13
* Use a more graceful shutdown process in `secret_store` tests.
* Convert some mutexes to rwlocks in `secret_store`.
* Consolidate Tokio Runtime use, remove `CpuPool`.
* Rename and move the `tokio_reactor` crate (`util/reactor`) to
`tokio_runtime` (`util/runtime`).
* Rename `EventLoop` to `Runtime`.
- Rename `EventLoop::spawn` to `Runtime::with_default_thread_count`.
- Add the `Runtime::with_thread_count` method.
- Rename `Remote` to `Executor`.
* Remove uses of `CpuPool` and spawn all tasks via the `Runtime` executor
instead.
* Other changes related to `CpuPool` removal:
- Remove `Reservations::with_pool`. `::new` now takes an `Executor` as an argument.
- Remove `SenderReservations::with_pool`. `::new` now takes an `Executor` as an argument.
* 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>
* Add signed refund
* Use signed 256-bit integer for sstore gas refund substate
* Fix tests
* Remove signed mod and use i128 directly
* Fix evm test case casting
* Fix jsontests ext signature
* Log block set in block_sync for easier debugging
* logging macros
* Match no args in sync logging macros
* Add QueueFull error
* Only allow importing headers if the first matches requested
* WIP
* Test for chain head gaps and log
* Calc distance even with 2 heads
* Revert previous commits, preparing simple fix
This reverts commit 5f38aa885b22ebb0e3a1d60120cea69f9f322628.
* Reject headers with no gaps when ChainHead
* Reset block sync download when queue full
* Simplify check for subchain heads
* Add comment to explain subchain heads filter
* Fix is_subchain_heads check and comment
* Prevent premature round completion after restart
This is a problem on mainnet where multiple stale peer requests will
force many rounds to complete quickly, forcing the retraction.
* Reset stale old blocks request after queue full
* Revert "Reject headers with no gaps when ChainHead"
This reverts commit 0eb865539e5dee37ab34f168f5fb643300de5ace.
* Add BlockSet to BlockDownloader logging
Currently it is difficult to debug this because there are two instances,
one for OldBlocks and one for NewBlocks. This adds the BlockSet to all
log messages for easy log filtering.
* Reset OldBlocks download from last enqueued
Previously when the ancient block queue was full it would restart the
download from the last imported block, so the ones still in the queue would be
redownloaded. Keeping the existing downloader instance and just
resetting it will start again from the last enqueued block.:wq
* Ignore expired Body and Receipt requests
* Log when ancient block download being restarted
* Only request old blocks from peers with >= difficulty
https://github.com/paritytech/parity-ethereum/pull/9226 might be too
permissive and causing the behaviour of the retraction soon after the
fork block. With this change the peer difficulty has to be greater than
or euqal to our syncing difficulty, so should still fix
https://github.com/paritytech/parity-ethereum/issues/9225
* Some logging and clear stalled blocks head
* Revert "Some logging and clear stalled blocks head"
This reverts commit 757641d9b817ae8b63fec684759b0815af9c4d0e.
* Reset stalled header if useless more than once
* Store useless headers in HashSet
* Add sync target to logging macro
* Don't disable useless peer and fix log macro
* Clear useless headers on reset and comments
* Use custom error for collecting blocks
Previously we resued BlockImportError, however only the Invalid case and
this made little sense with the QueueFull error.
* Remove blank line
* Test for reset sync after consecutive useless headers
* Don't reset after consecutive headers when chain head
* Delete commented out imports
* Return DownloadAction from collect_blocks instead of error
* Don't reset after round complete, was causing test hangs
* Add comment explaining reset after useless
* Replace HashSet with counter for useless headers
* Refactor sync reset on bad block/queue full
* Add missing target for log message
* Fix compiler errors and test after merge
* ethcore: revert ethereum tests submodule update
* `ExecutionsRequest` from light-clients as read-only
This changes so all `ExecutionRequests` from light-clients are executed
as read-only which the `virtual``flag == true ensures.
This boost up the current transaction to always succeed
Note, this only affects `eth_estimateGas` and `eth_call` AFAIK.
* grumbles(revert renaming) : TransactionProof
* grumbles(trace) : remove incorrect trace
* grumbles(state/prove_tx) : explicit `virt`
Remove the boolean flag to determine that a `state::prove_transaction`
whether it should be executed in a virtual context or not.
Because of that also rename the function to
`state::prove_transction_virtual` to make more clear
* 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
* sync: Validate received BlockHeaders packets against stored request.
* sync: Validate received BlockBodies and BlockReceipts.
* sync: Fix broken tests.
* sync: Unit tests for BlockDownloader::import_headers.
* sync: Unit tests for import_{bodies,receipts}.
* tests: Add missing method doc.
* Add new Vm trappable interface
* Exec/Resume interface
* Basic implementation of CallCreateExecutive
* Implement resume_call and resume_create for executive
* Move convertion to call/create result to separate function
* Implement consume that converts resumable to non-resumable
* Use consume for Executive::call/create
* Resumable EVM
* Implement tracing mode without needing subtracers
* Implement vmtracer so it doesn't require extra structs for subtracing
* Use the new tracing mode in executive
* Fix most of the linting errors for cargo build
* Add the concept of stack_depth
* Add back crossbeam
* Fix some test compile
* Fix prefix address test
* Fix evm crate tests
* Fix wasm crate test compile
* Fix wasm runner compile
* Fix jsontests compile
* Fix evmbin compile
* Fix an issue with create nonce and better vm tracing interface
* Fix linting
* Fix evmbin compile
* Fix unconfirmed_substate and static_flag
* Fix an issue in create address logic
* Fix top-level tracing
* Handle builtin tracing
* Fix suicide and reward tracing index stack
* Fix an issue where trap conflicts with tracing
* Fix an issue in parent step vm tracing
* Fix revert tracing
* Fix evmbin tests
* Remove params clone
* Fix TODO proofs
* Fix jsontests compile
* Fix evmbin merge issue
* Fix wasm merge issue
* Fix wasm test
* Fix ethcore merge warnings
* Fix evmbin compile
* Better expect messages and add some trace::skip_one asserts
* 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
* VerificationQueue don't spawn up extra threads
In the verification queue we spawn up worker threads to do the work.
However, if `num-verifiers` is specified we still spawn the maximum
number of threads which consume extra memory.
There is one catch though when `--scale-verifiers` is specified then
we can't do it because all threads are created upon initilization AFAIK.
In my opinion, is doesn't to use both `num-verifiers` and
`scale-verifiers` they are kind of contradictory!
* Fix nits in logic and add tests for verification
* refactor(verification queue) - rm hardcoded const
* Address grumbles in new tests
* Remove hardcoded `MAX_VERIFIERS` constant and replace it by relying
entirely on `num_cpu` crate instead inorder to support CPUs that have
more cores/logical cores
