So far to retrieve a value from the DHT, one would need to:

1. Trigger a DHT event query via `NetworkWorker.get_value`.

2. Somehow retrieve the event from `NetworkWorker.poll`, e.g. by having
it return the responses as a stream.

Instead of the above, this commit suggests having
`NetworkService.get_value` return a future, eventually resolving to the
DHT response. Internally this is coordinated via
`futures::sync::oneshot`, maintaining a list of subscribers for a given
DHT key, notifying each one when a new event comes in.

* 6 second blocks.

* Version bump

* Add test for slashable_balance()

* make staking add_reward_points_to_validator public

* make storage private

* bump version

* Documentation and small cleanup in panic-handler

* Apply suggestions from code review

Co-Authored-By: Sergei Pepyakin <[email protected]>

* Switch to deferred actions

* Make restore_to a deferred action.

* Bump version.

* Review fixes.

* Replace the telemetry Mutex with a channel

* Don't return Err() if channel is full

* Change polling pattern

* Add more issue numbers

* Don't set `HEAP_PAGES` in `BasicExternalities`

* Fix test

This reverts commit fb28e115.

* Update schnorrkel to `0.7.0`

* Apply suggestions from code review

Co-Authored-By: DemiMarie-parity <[email protected]>

* Increase `spec_version`

* node: update BABE authority ids in staging testnet config

* node: update flaming fir chain spec

* babe: don't execute median algorithm

* babe: checked sub in median calculation

* node: bump impl_version to make ci happy

* babe: remove forbid dead_code

* Reorg test

* Fixed informant misreporting reorgs

* Update cache when reorg is caused by applying finality

* Test for finality reorg

* Simplified test

* Typo

Co-Authored-By: André Silva <[email protected]>

Partly due to interaction with #3191.

* Stop block import after error

* Better diagnostic on error

* srml-contracts: Forbid remaining uses of float types.

* Bump node runtime impl version.

* srml: babe: add expected block time constant

* srml: babe: expose epoch duration constant

* node: bump spec_version

* core: don't use moment type in test-runtime

* babe: add docs regarding c parameter

* Allow creating a ChainSpec from a Vec<u8>

* Line widths

* Embedded -> Binary

* Remove from_embedded

* CLI execution flag for import-blocks and factory.

* Fix minimum_balance bug with CLI factory.

Max Inden authored Jul 29, 2019 and Pierre Krieger committed Jul 29, 2019

* core/network: Fix bad import %s/runtime_primitives/sr_primitives/

* Cargo.lock: Update consensus-common-primitives parity-codec version

* core/consensus/common: Remove obsolete package path

* refactor sr_primitives.

* Fix try build error.

* Line-width

* Ui test.

* Final fixes.

* Fix build again.

* bring back ui test.

* Fix unsigned import.

* Another ui fix.

* Also refactor substrate-primitives

* Fix benchmarks.

* Fix doc test.

* fix doc tests

The goal of the commit is to be able to retrieve the current set of
authorities without needing to know the concrete consensus mechanism in
place.

In order to achieve the above this commit introduces the
`core/consensus/common/primitives` crate, declaring the `ConsensusApi`
runtime API. In addition it implements the above mentioned trait
definition in `node/runtime` by returning the current authorities of the
BABE consensus mechanism.

Jim Posen authored Jul 29, 2019 and Sergey Pepyakin committed Jul 29, 2019

* srml-contracts: Change Ext interface to pass-by-value.

* srml-contracts: Refactor ExecutionContext to reduce duplication.

* srml-contracts: Refactor contracts Module to reduce duplication.

* Bump node runtime impl version.

* Switch consensus-common to new futures

* Fix tests

* More tests fixing

* Make Proposer, OnSlot and SyncOracle mut

* Make the Environment mut as well

* Fix test

* Fix Babe tests

* Babe fixes

* Fix CLI service tests

* Fix Babe tests

* Remove unnecessary trait bound

* Inline the code of BlockBuilder and AuthoringApi

* Remove warning lint

* Bounds simplification

* Imports simplification

* Don't panic on bad generated block

* Code style

* Add doc example

* Remove dependency on aura

* Order dependencies alphabetically

* Minor style

* Minor cleanup in native_executor.rs

* Fix tests

* fixed debug flags

* test everything works

* test everything works 2

* sections are rewritten

* everything works

* node: update babe parameters to target 6 second block time

* node: add comment on MILLISECS_PER_BLOCK constant

* Switch consensus-common to new futures

* Fix tests

* More tests fixing

* Pass the block_import by value when importing

* Rewrite the multi-blocks import as a future

* Add some comments

* Add a delay between each block

* Fix Babe tests

* Reverse white space change

* WIP to release subkey im docker

* debug run with publishing

* debug build

* debug build 2

* easier sync

* fix the template

* fix typo