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Erasure encoding availability (#345)

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* Erasure encoding availability initial commit

 * Modifications to availability store to keep chunks as well as
   reconstructed blocks and extrinsics.
 * Gossip messages containig signed erasure chunks.
 * Requesting eraure chunks with polkadot-specific messages.
 * Validation of erasure chunk messages.

* Apply suggestions from code review

Co-Authored-By: Luke Schoen <ltfschoen@users.noreply.github.com>

* Fix build after a merge

* Gossip erasure chunk messages under their own topic

* erasure_chunks should use the appropriate topic

* Updates Cargo.lock

* Fixes after merge

* Removes a couple of leftover pieces of code

* Fixes simple stuff from review

* Updates erasure and storage for more flexible logic

* Changes validation and candidate receipt production.

* Adds add_erasure_chunks method

* Fixes most of the nits

* Better validate_collation and validate_receipt functions

* Fixes the tests

* Apply suggestions from code review

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

* Removes unwrap() calls

* Removes ErasureChunks primitive

* Removes redundant fields from ErasureChunk struct

* AvailabilityStore should store CandidateReceipt

* Changes the way chunk messages are imported and validated.

 * Availability store now stores a validator_index and n_validators for
 each relay_parent.
 * Availability store now also stores candidate receipts.
 * Removes importing chunks in the table and moves it into network
 gossip validation.
 * Validation of erasure messages id done against receipts that are
 stored in the availability store.

* Correctly compute topics for erasure messages

* Removes an unused parameter

* Refactors availability db querying into a helper

* Adds the apis described in the writeup

* Adds a runtime api to extract erasure roots form raw extrinsics.

* Adds a barebone BlockImport impl for avalability store

* Adds the implementation of the availability worker

* Fix build after the merge with master.

* Make availability store API async

* Bring back the default wasmtime feature

* Lines width

* Bump runtime version

* Formatting and dead code elimination

* some style nits (#1)

* More nits and api cleanup

* Disable wasm CI for availability-store

* Another nit

* Formatting
This commit is contained in:
Fedor Sakharov
2019-12-03 17:49:07 +03:00
committed by Robert Habermeier
parent ec54d5b1e4
commit 99d164b5e7
29 changed files with 2957 additions and 572 deletions
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polkadot/primitives/Cargo.toml
+2
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@@ -14,6 +14,7 @@ sp-version = { git = "https://github.com/paritytech/substrate", default-features
rstd = { package = "sp-std", git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-master" }
runtime_primitives = { package = "sp-runtime", git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-master" }
polkadot-parachain = { path = "../parachain", default-features = false }
trie = { package = "sp-trie", git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-master" }
bitvec = { version = "0.15.2", default-features = false, features = ["alloc"] }
babe = { package = "pallet-babe", git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-master" }
@@ -26,6 +27,7 @@ default = ["std"]
std = [
"parity-scale-codec/std",
"primitives/std",
"trie/std",
"sp-api/std",
"rstd/std",
"sp-version/std",