* Rough skeleton for what I think the RPC should look like
* Create channel for sending justifications
Sends finalized header and justification from Grandpa to the
client. This lays the groundwork for hooking into the RPC module.
* WIP: Add subscribers for justifications to Grandpa
Adds the Sender end of a channel into Grandpa, through which notifications
about block finality events can be sent.
* WIP: Add a struct for managing subscriptions
Slightly different approach from the last commit, but same
basic idea. Still a rough sketch, very much doesn't compile yet.
* Make naming more clear and lock data in Arc
* Rough idea of what RPC would look like
* Remove code from previous approach
* Missed some things
* Update client/rpc-api/src/chain/mod.rs
Co-Authored-By: Tomasz Drwięga <tomusdrw@users.noreply.github.com>
* Update client/rpc-api/src/chain/mod.rs
Co-Authored-By: Tomasz Drwięga <tomusdrw@users.noreply.github.com>
* Split justification subscription into sender and receiver halves
* Replace RwLock with a Mutex
* Add sample usage from the Service's point of view
* Remove code that referred to "chain_" RPC
* Use the Justification sender/receivers from Grandpa LinkHalf
* Add some PubSub boilerplate
* Add guiding comments
* TMP: comment out to fix compilation
* Return MetaIoHandler from PubSubHandler in create_full
* Uncomment pubsub methods in rpc handler (fails to build)
* node/rpc: make Metadata concrete in create_full to fix compilation
* node: pass in SubscriptionManger to grandpa rpc handler
* grandpa-rpc: use SubscriptionManger to add subscriber
* grandpa-rpc: attempt at setting up the justification stream (fails to build)
* grandpa-rpc: fix compilation of connecting stream to sink
* grandpa-rpc: implement unsubscribe
* grandpa-rpc: update older tests
* grandpa-rpc: add full prefix to avoid confusing rust-analyzer
* grandpa-rpc: add test for pubsub not available
* grandpa-rpc: tidy up leftover code
* grandpa-rpc: add test for sub and unsub of justifications
* grandpa-rpc: minor stylistic changes
* grandpa-rpc: split unit test
* grandpa-rpc: minor stylistic changes in test
* grandpa-rpc: skip returning future when cancelling
* grandpa-rpc: reuse testing executor from sc-rpc
* grandpa-rpc: don't need to use PubSubHandler in tests
* node-rpc: use MetaIoHandler rather than PubSubHandler
* grandpa: log if getting header failed
* grandpa: move justification channel creation into factory function
* grandpa: make the justification sender optional
* grandpa: fix compilation warnings
* grandpa: move justification notification types to new file
* grandpa-rpc: move JustificationNotification to grandpa-rpc
* grandpa-rpc: move JustificationNotification to its own file
* grandpa: rename justification channel pairs
* grandpa: rename notifier types
* grandpa: pass justification as GrandpaJustification to the rpc module
* Move Metadata to sc-rpc-api
* grandpa-rpc: remove unsed error code
* grandpa: fix bug for checking if channel is closed before sendind
* grandpa-rpc: unit test for sending justifications
* grandpa-rpc: update comments for the pubsub test
* grandpa-rpc: update pubsub tests with more steps
* grandpa-rpc: fix pubsub test
* grandpa-rpc: minor indendation
* grandpa-rpc: decode instead of encode in test
* grandpa: fix review comments
* grandpa: remove unused serde dependency
Co-authored-by: Tomasz Drwięga <tomusdrw@users.noreply.github.com>
Co-authored-by: Jon Häggblad <jon.haggblad@gmail.com>
Co-authored-by: Tomasz Drwięga <tomasz@parity.io>