Co-Authored-By: thiolliere <[email protected]>

Co-Authored-By: thiolliere <[email protected]>

André Silva authored Apr 08, 2019 and asynchronous rob committed Apr 08, 2019

* core: grandpa: migrate to grandpa 0.7

* core: grandpa: store current round votes and load them on startup

* core: grandpa: resend old persisted votes for the current round

* core: grandpa: store base and votes for last completed round

* core: grandpa: fix latest grandpa 0.7 changes

* core: grandpa: update to grandpa 0.7.1

* core: grandpa: persist votes for last two completed rounds

* core: grandpa: simplify VoterSetState usage

* core: grandpa: use Environment::update_voter_set_state

* core: grandpa: fix aux_schema test

* core: grandpa: add docs

* core: grandpa: add note about environment assumption

* core: grandpa: don't update voter set state on ignored votes

* core: grandpa: add test for v1 -> v2 aux_schema migration

* core: grandpa: add test for voter vote persistence

* core: grandpa: use grandpa 0.7.1 from crates.io

* core: grandpa: use try_init in test

* core: grandpa: add comment about block_import in test

* core: grandpa: avoid cloning HasVoted

* core: grandpa: add missing docs

* core: grandpa: cleanup up can_propose/prevote/precommit

* Reject validation of contract with unknown exports

* Validate imports eagerly

* Increment spec version

* Fix state inconsistency between handler and behaviour

* Fix the error! being in the wrong place

Instead of calculating the `storage_root` a second time, we just can
take the `storage_root` from the new header.

* Peerset::discovered accepts many peer ids

* Improve tracing in peerset

* Introduction of PeersetHandle

* integrate PeersetHandle with the rest of the codebase

* fix compilation errors

* more tests for peerset, fixed overwriting bug in add_reserved_peer

* Slots data structure and bugfixes for peerset

* bend to pressure

* updated lru-cache to 0.1.2 and updated linked-hash-map to 0.5.2

* peerset discovered list is now a LinkedHashMap

* fix review suggestions

* split back Peerset and PeersetHandle

* test for Peerset::discovered

* applied review suggestions

* fixes to peerset::incoming

* peerset disconnects are all instantaneous

* instantaneous drop in peerset finished

* Peerset::set_reserved_only can also reconnect nodes

* Peerset scores cache uses lru-cache

* remove redundant function call and comment from Peerset::on_set_reserved_only

* add_peer returns SlotState enum

* apply review suggestions

* is_reserved -> is_connected_and_reserved

Both functions will ignore any overlayed changes and access the backend
directly.