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NetworkBridge: validator (authorities) discovery api (#1699)

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* stupid, but it compiles

* redo

* cleanup

* add ValidatorDiscovery to msgs

* sketch network bridge code

* ConnectToAuthorities instead of validators

* more stuff

* cleanup

* more stuff

* complete ConnectToAuthoritiesState

* Update node/network/bridge/src/lib.rs

Co-authored-by: Peter Goodspeed-Niklaus <coriolinus@users.noreply.github.com>

* Collator protocol subsystem (#1659)

* WIP

* The initial implementation of the collator side.

* Improve comments

* Multiple collation requests

* Add more tests and comments to validator side

* Add comments, remove dead code

* Apply suggestions from code review

Co-authored-by: Peter Goodspeed-Niklaus <coriolinus@users.noreply.github.com>

* Fix build after suggested changes

* Also connect to the next validator group

* Remove a Future impl and move TimeoutExt to util

* Minor nits

* Fix build

* Change FetchCollations back to FetchCollation

* Try this

* Final fixes

* Fix build

Co-authored-by: Peter Goodspeed-Niklaus <coriolinus@users.noreply.github.com>

* handle multiple in-flight connection requests

* handle cancelled requests

* Update node/core/runtime-api/src/lib.rs

Co-authored-by: Bernhard Schuster <bernhard@ahoi.io>

* redo it again

* more stuff

* redo it again

* update comments

* workaround Future is not Send

* fix trailing spaces

* clarify comments

* bridge: fix compilation in tests

* update more comments

* small fixes

* port collator protocol to new validator discovery api

* collator tests compile

* collator tests pass

* do not revoke a request when the stream receiver is closed

* make revoking opt-in

* fix is_fulfilled

* handle request revokation in collator

* tests

* wait for validator connections asyncronously

* fix compilation

* relabel my todos

* apply Fedor's patch

* resolve reconnection TODO

* resolve revoking TODO

* resolve channel capacity TODO

* resolve peer cloning TODO

* resolve peer disconnected TODO

* resolve PeerSet TODO

* wip tests

* more tests

* resolve Arc TODO

* rename pending to non_revoked

* one more test

* extract utility function into util crate

* fix compilation in tests

* Apply suggestions from code review

Co-authored-by: Fedor Sakharov <fedor.sakharov@gmail.com>

* revert pin_project removal

* fix while let loop

* Revert "revert pin_project removal"

This reverts commit ae7f529d8de982ef66c3007dd1ff74c6ddce80d2.

* fix compilation

* Update node/subsystem/src/messages.rs

* docs on pub items

* guide updates

* remove a TODO

* small guide update

* fix a typo

* link to the issue

* validator discovery: on_request docs

Co-authored-by: Peter Goodspeed-Niklaus <coriolinus@users.noreply.github.com>
Co-authored-by: Fedor Sakharov <fedor.sakharov@gmail.com>
Co-authored-by: Bernhard Schuster <bernhard@ahoi.io>
This commit is contained in:
Andronik Ordian
2020-10-06 13:34:57 +02:00
committed by GitHub
parent 96f6b5ae2d
commit ca89e3edbe
20 changed files with 1102 additions and 124 deletions
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polkadot/roadmap/implementers-guide/src/node/utility/network-bridge.md
+4 -2
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@@ -92,10 +92,12 @@ Map the message onto the corresponding [Event Handler](#event-handlers) based on
### ConnectToValidators
> TODO: Currently, this request is limited to the validators in the current session.
- Determine the DHT keys to use for each validator based on the relay-chain state and Runtime API.
- Recover the Peer IDs of the validators from the DHT. There may be more than one peer ID per validator.
- Accumulate all `(ValidatorId, PeerId)` pairs and send on the response channel.
- Feed all Peer IDs to peer set manager the underlying network provides, indicating the expected peer-set.
- Send all `(ValidatorId, PeerId)` pairs on the response channel.
- Feed all Peer IDs to peer set manager the underlying network provides.
## Event Handlers
polkadot/roadmap/implementers-guide/src/types/overseer-protocol.md
+18 -4
View File
@@ -212,11 +212,25 @@ enum NetworkBridgeMessage {
SendValidationMessage([PeerId], ValidationProtocolV1),
/// Send a message to one or more peers on the collation peerset.
SendCollationMessage([PeerId], ValidationProtocolV1),
/// Connect to peers who represent the given `ValidatorId`s at the given relay-parent.
/// Connect to peers who represent the given `validator_ids`.
///
/// Also accepts a response channel by which the issuer can learn the `PeerId`s of those
/// validators.
ConnectToValidators(PeerSet, [ValidatorId], ResponseChannel<[(ValidatorId, PeerId)]>>),
/// Also ask the network to stay connected to these peers at least
/// until the request is revoked.
ConnectToValidators {
/// Ids of the validators to connect to.
validator_ids: Vec<AuthorityDiscoveryId>,
/// Response sender by which the issuer can learn the `PeerId`s of
/// the validators as they are connected.
/// The response is sent immediately for already connected peers.
connected: ResponseStream<(AuthorityDiscoveryId, PeerId)>,
/// By revoking the request the caller allows the network to
/// free some peer slots thus freeing the resources.
/// It doesn't necessarily lead to peers disconnection though.
/// The revokation is enacted on in the next connection request.
///
/// This can be done by sending to the channel or dropping the sender.
revoke: ReceiverChannel<()>,
},
}
```