Allow parachains to send messages (#274)

* Slots module

* Integrate slots

* More drafting

* Minor updates

* Update parachains to use trati

* More build fixes

* Full code now compiles

* Add renew bid function

* Implement calculate_winner

* Warning remove

* Update gitignore

* Test framework

* Tests

* Further testing

* More tests, new parameterisation.

* Fix and new test

* Thread-safe tests

* Test off-boarding and a fix.

* Test onboarding

* Allow late onboarding.

* Another test and fix

* Avoid println in nostd

* Compact representation of paraids

* Introduce documentation.

* Introduce events.

* Additional test and fix

* Additional test

* Tidy up line lengths.

* Remove printlns

* Use later substrate utils.

* Allow parachains to send messages.

* Fix build/test

* Make slots work with latest substrate

* Update runtime/src/slot_range.rs

Co-Authored-By: Robert Habermeier <rphmeier@gmail.com>

* Update runtime/src/slots.rs

Co-Authored-By: Shawn Tabrizi <shawntabrizi@gmail.com>

* Update runtime/src/slots.rs

Co-Authored-By: Shawn Tabrizi <shawntabrizi@gmail.com>

* Polish logic

* Rewind to earlier substrate master

* Remove dead code.

* Fix build

* Update substrate ref to master

* Update to new inherent digests API

* address grumbles

* fix

* Fix a warning.

* Reworded a comment.

* Check that receipt matches expectations

* Add test for final checks

* Split out queuing logic.

* Test final piece of queuing logic

* Fix up docs.

* More docs fixes

polkadot/network/src/collator_pool.rs

@@ -277,10 +277,10 @@ mod tests {
 				collator: primary.into(),
 				signature: Default::default(),
 				head_data: HeadData(vec![1, 2, 3]),
-				balance_uploads: vec![],
 				egress_queue_roots: vec![],
 				fees: 0,
 				block_data_hash: [3; 32].into(),
+				upward_messages: Vec::new(),
 			},
 			pov: make_pov(vec![4, 5, 6]),
 		});
@@ -304,10 +304,10 @@ mod tests {
 				collator: primary,
 				signature: Default::default(),
 				head_data: HeadData(vec![1, 2, 3]),
-				balance_uploads: vec![],
 				egress_queue_roots: vec![],
 				fees: 0,
 				block_data_hash: [3; 32].into(),
+				upward_messages: Vec::new(),
 			},
 			pov: make_pov(vec![4, 5, 6]),
 		});

polkadot/network/src/gossip.rs

@@ -643,10 +643,10 @@ mod tests {
 			collator: [255; 32].unchecked_into(),
 			head_data: HeadData(vec![9, 9, 9]),
 			signature: Default::default(),
-			balance_uploads: Vec::new(),
 			egress_queue_roots: Vec::new(),
 			fees: 1_000_000,
 			block_data_hash: [20u8; 32].into(),
+			upward_messages: Vec::new(),
 		};
 
 		let statement = GossipMessage::Statement(GossipStatement {

polkadot/network/src/lib.rs

@@ -69,7 +69,7 @@ mod benefit {
 type FullStatus = GenericFullStatus<Block>;
 
 /// Specialization of the network service for the polkadot protocol.
-pub type NetworkService = ::substrate_network::Service<Block, PolkadotProtocol>;
+pub type NetworkService = ::substrate_network::NetworkService<Block, PolkadotProtocol>;
 
 /// Status of a Polkadot node.
 #[derive(Debug, PartialEq, Eq, Clone, Encode, Decode)]

polkadot/network/src/tests/mod.rs

@@ -158,10 +158,10 @@ fn fetches_from_those_with_knowledge() {
 		collator: [255; 32].unchecked_into(),
 		head_data: HeadData(vec![9, 9, 9]),
 		signature: Default::default(),
-		balance_uploads: Vec::new(),
 		egress_queue_roots: Vec::new(),
 		fees: 1_000_000,
 		block_data_hash,
+		upward_messages: Vec::new(),
 	};
 
 	let candidate_hash = candidate_receipt.hash();
@@ -242,10 +242,10 @@ fn fetches_available_block_data() {
 		collator: [255; 32].unchecked_into(),
 		head_data: HeadData(vec![9, 9, 9]),
 		signature: Default::default(),
-		balance_uploads: Vec::new(),
 		egress_queue_roots: Vec::new(),
 		fees: 1_000_000,
 		block_data_hash,
+		upward_messages: Vec::new(),
 	};
 
 	let candidate_hash = candidate_receipt.hash();