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babe: support online configuration upgrades (#5514)

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* babe: support online configuration upgrades

* Switch to use NextConfigDescriptor instead of changing runtime interface

* Fix tests

* epoch-changes: map function that allows converting with different epoch types

* Add migration script for the epoch config change

* Fix migration tests

* Fix migration: Epoch should be EpochV0

* Update client/consensus/babe/src/lib.rs

Co-Authored-By: André Silva <123550+andresilva@users.noreply.github.com>

* Fix new epochChanges version

* Fix unused imports

Co-authored-by: André Silva <123550+andresilva@users.noreply.github.com>
This commit is contained in:
Wei Tang
2020-04-24 15:59:14 +02:00
committed by GitHub
parent a01e608dff
commit 770cc24c47
12 changed files with 300 additions and 86 deletions
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substrate/client/consensus/babe/src/tests.rs
+10 -6
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@@ -127,7 +127,7 @@ impl DummyProposer {
&self.parent_hash,
self.parent_number,
this_slot,
|slot| self.factory.config.genesis_epoch(slot),
|slot| Epoch::genesis(&self.factory.config, slot),
)
.expect("client has data to find epoch")
.expect("can compute epoch for baked block");
@@ -505,9 +505,13 @@ fn can_author_block() {
randomness: [0; 32],
epoch_index: 1,
duration: 100,
config: BabeEpochConfiguration {
c: (3, 10),
secondary_slots: true,
},
};
let mut config = crate::BabeConfiguration {
let mut config = crate::BabeGenesisConfiguration {
slot_duration: 1000,
epoch_length: 100,
c: (3, 10),
@@ -517,7 +521,7 @@ fn can_author_block() {
};
// with secondary slots enabled it should never be empty
match claim_slot(i, &epoch, &config, &keystore) {
match claim_slot(i, &epoch, &keystore) {
None => i += 1,
Some(s) => debug!(target: "babe", "Authored block {:?}", s.0),
}
@@ -526,7 +530,7 @@ fn can_author_block() {
// of times.
config.secondary_slots = false;
loop {
match claim_slot(i, &epoch, &config, &keystore) {
match claim_slot(i, &epoch, &keystore) {
None => i += 1,
Some(s) => {
debug!(target: "babe", "Authored block {:?}", s.0);
@@ -632,7 +636,7 @@ fn importing_block_one_sets_genesis_epoch() {
&mut block_import,
);
let genesis_epoch = data.link.config.genesis_epoch(999);
let genesis_epoch = Epoch::genesis(&data.link.config, 999);
let epoch_changes = data.link.epoch_changes.lock();
let epoch_for_second_block = epoch_changes.epoch_data_for_child_of(
@@ -640,7 +644,7 @@ fn importing_block_one_sets_genesis_epoch() {
&block_hash,
1,
1000,
|slot| data.link.config.genesis_epoch(slot),
|slot| Epoch::genesis(&data.link.config, slot),
).unwrap().unwrap();
assert_eq!(epoch_for_second_block, genesis_epoch);