This is a huge change, which includes some changes to replace code that
originally cloned to reuse allocations instead. The updated
`elastic-array` crate renames its consuming `Vec`-conversion method to
`into_vec`, which means that I can do a simple
`sed -i 's/to_vec/into_vec/'` and then fix the compilation errors.
This commit is probably a minor performance win and definitely a
significant readability win.
* separate modules for consensus snapshot chunks
* bulk of authority warp logic
* finish authority warp implementation
* squash warnings and enable authority snapshot mode
* test harness for PoA
* fiddle with harness
* epoch generation proof fixes
* update constructor code
* store epoch transition proof after block commit
* basic snap and restore test
* use keyvaluedb in state restoration
* decompress chunks
* fix encoding issues
* fixed-to-contract-to-contract test
* implement ancient block import
* restore genesis transition in PoW snapshot
* add format version method to snapshot components
* supported version numbers in snapshot_components
* allow returning of ancient epoch transitions
* genesis hash mismatch check
* remove commented code
* return errors on database corruption
* fix tests, json tests
* fix remainder of build
* buffer flow -> request credits
* proving state backend
* generate transaction proofs from provider
* network messages for transaction proof
* transaction proof test
* test for transaction proof message
* fix call bug
* request transaction proofs from on_demand
* most of proved_execution rpc
* proved execution future
* initial request definitions
* RLP encoding and decoding for requests
* proofs of non-existance in ProvingBlockChainClient
* new requests in provider.
* encode and decode responses
* complete initial request changes
* handle request packet in LightProtocol
* handle response packets
* implement requesting from
* re-do cost table
* get tests compiling
* fix cost table RLP encoding
* roundtrip tests for request types
* request builder tests
* move request_builder -> request::builder
* get network tests working
* return only complete headers responses
* request builder improvements
* New version of jsonrpc.
* split request filling into fill,complete
* Better invalid encoding messages
* Fixing deprecated methods of tokio_core
* use PIP messages in on_demand, old API
* migrate oneshot::complete to send in on_demand
* get on_demand tests to compile
* port ethsync to PIP messages
* adjust to minor on_demand API changes in RPC
* Using dedicated branch for jsonrpc
* Bump
* state backend trait mirroring state_db API
* minimal state backend trait
make state module public
* fix json tests
* return errors on database corruption
* fix tests, json tests
* fix remainder of build
* add Backend bound on state
* triedb cleanup
* factor out common portion of trie query
* allocate far fewer times in node decoding
* fix bench compilation
* introduce OwnedNode variant to make iter fast again
* generalize recorder trait to Query
* decode trie outputs cost-free in state
* test for passing closure as query
