Commit Graph

178 Commits

Author SHA1 Message Date
Zahary Karadjov f23ee4ccae Fix a wrong assert 2019-03-28 16:54:50 +02:00
Jacek Sieka 3ad6053298 Use block, slot tuple to idenfiy fork
this is the beginning of tracking block-slots more precisely, so we can
the justification epoch slot bug.

* avoid asyncDiscard (swallows assertions)
* fix attestation delay
* fix several state root cache bugs
* introduce workaround for genesis epoch spec issue
2019-03-28 10:32:09 +02:00
Jacek Sieka 81c66fbce0
use signed_root as canonical block root (#211)
* no need to pass prev_block_root when updating state
* some Slot fixes
* fix `hash_tree_root` for Slot, Epoch
* detect missing hash_tree_root type support
* remove some <0.5 state checks
2019-03-26 19:32:35 -06:00
Jacek Sieka 1b0e67c88c
ssz: update to 0.5.1:ish (#202)
* ssz: update to 0.5.1:ish
* slightly fewer seq allocations
* still a lot of potential for optimization
* fixes #174
* ssz: avoid reallocating leaves (logN merkle impl)
2019-03-25 10:46:31 -06:00
Dustin Brody f36c2d86dc begin 0.5.0 spec update (#179)
* begin 0.5.0 spec update: parent_root -> previous_block_root, BeaconState.justified_epoch -> BeaconState.current_justified_epoch, DOMAIN_PROPOSAL -> DOMAIN_BEACON_BLOCK, temporarily rename BeaconBlockHeader to BeaconBlockHeaderRLP to allow for gradual re-merging without disrupting RLP; mark a few unchanged functions and data types, implement get_temporary_block_header/get_empty_block/should_update_validator_registry/processBlockHeader/cacheState; update a few others

* a dozen or so more trivial mostly comment changes, finding more unchanged parts of 0.5.0

* several more trivial changes; goal is to reduce noise around the upcoming substantial changes (epoch processing, etc)
2019-03-16 13:52:37 -06:00
Jacek Sieka b0f4034060
implement fork choice (#175)
* keep track of a finalized block
* keep track of all justified blocks
* use naive spec version of LMD ghost
* cache slot number and a few more things in BlockRef
* keep track of the latest vote of each validator
* depend less on the state of node.state (it's a cache, effectively)
2019-03-13 16:59:20 -06:00
Zahary Karadjov 903cb8a8b5 A LibP2P-based networking stack;
To enable it, comment out the 'withLibp2p' line in nim.cfg

The history was squashed in order to remove an accidentally
commited binary file.

Other changes:

* SSZ was adapted to use the common serialization framework

* gossibsup.subscribe is not using async handlers at the moment
  and this allowed me to simplify it
2019-03-12 13:36:55 +02:00
Yuriy Glukhov b587455e7b Use BlockPool for slot->blocks mapping (#166) 2019-03-11 09:38:36 -06:00
Jacek Sieka 6bcefc0e42
verify blocks before storing in block pool / database (#158)
* fix state db lookup typo
* fix randao reveal slot when proposing blocks
* only store blocks that can be applied to a state
* store state at every epoch boundary (yes, needs pruning!)
* split out state advancement function when there's no block
* default state sim to 0.9 attestation ratio
2019-03-08 10:40:17 -06:00
Yuriy Glukhov 9ea0bf4326
Comments addressed 2019-03-04 13:50:26 +02:00
Yuriy Glukhov bed6510da3
Initial full sync impl 2019-03-01 19:39:38 +02:00
Jacek Sieka 125231d321
add initial block pool (#139)
* implement in-memory block graph
* store tail block in database
* resolve unknown parents by syncing them from peers
* introduce concept of resolved blocks and attestations - those that
follow minimal protocol rules
* update state head lazily
* log more stuff
* shortHash -> shortLog
* start 9/10 beacon nodes by default, last can be started manually
* see also #134
* fix start.sh epoch length
2019-02-28 15:21:29 -06:00
Jacek Sieka 4c2d212781
updates
* comment on last finalized state
* use explicitly named proc's instead of type tricks
2019-02-21 15:38:26 -06:00
Jacek Sieka 1d9c91d230
cleanups
* add ancestor getter to db layer, and use
* remove head block call
* add trivial beacon chain db test
2019-02-21 11:20:50 -06:00
Jacek Sieka 2d307e2257
initial state replay implementation
* fix initial attestation pool on reordered attestations
* simplify db layer api
* load head block from database on startup, then load state
  * significantly changes database format
* move subscriptions to separate proc's
* implement block replay from historical state
* avoid rescheduling epoch actions on block receipt (why?)
* make sure genesis block is created and used
* relax initial state sim parameters a bit
2019-02-20 22:42:17 -06:00
Dustin Brody 132f1147a2 spec 0.3.0 updates: EPOCH_LENGTH -> SLOTS_PER_EPOCH, SlotNumber -> Slot, EpochNumber -> Epoch (#127)
* spec 0.3.0 updates: EPOCH_LENGTH -> SLOTS_PER_EPOCH, SlotNumber -> Slot, EpochNumber -> Epoch
2019-02-19 19:33:58 -06:00
Jacek Sieka c64cd2f275 a few simple SlotNumber cleanups 2019-02-18 22:43:33 +02:00
Yuriy Glukhov 7f1bddb267 Use nim-eth (#82) 2019-02-05 20:21:18 +01:00
Yuriy Glukhov bbd94185a4 State storage predicate moved to beacon_node, split persistBlock to persistBlock and persistState 2019-02-04 21:44:37 +01:00
Yuriy Glukhov 1606bc6f92 Cosmetics 2019-02-04 21:44:37 +01:00
Yuriy Glukhov 917c48d9a5 More persistance 2019-02-04 21:44:37 +01:00
Yuriy Glukhov 7e4d264887 Back the db by rocksdb backend 2019-01-17 14:38:16 +02:00
mratsim 423f632606 Fork choice compiles (but untested) 2019-01-12 13:57:50 +02:00
Zahary Karadjov 8f9a5441f1 More reliable network simulation
You'll need the latest versions of nim-eth-p2p, nim-serialization
and nim-json-serialization.

Before starting the simulation script, make sure to delete any previous
json files from the simulation folder:

```
rm tests/simulation/*.json
tests/simulation/start.sh
```

This should survive the creation of few blocks before diying with a
block validation error.
2019-01-05 14:35:47 +02:00
Jacek Sieka 12a819c110
spec updates (#48)
* spec updates
* balances move out to separate seq
* bunch of placeholders for proof-of-custody / phase1
* fix inclusion distance adjustment
* modify state in-place in `updateState` (tests spent over 80% time
copying state! now it's down to 25-50)
* document several conditions and conversations
* some renames here and there to follow spec
2018-12-27 14:14:37 -06:00
Zahary Karadjov abb199d6dc Chain creation and network simulation start script 2018-12-19 15:39:00 +02:00
Zahary Karadjov e4d1bebf4d Get the code to compiling state 2018-11-29 03:17:57 +02:00
Zahary Karadjov 4920c0a357 work-in-progress beacon node skeleton (not compiling at the moment) 2018-11-28 22:55:04 +02:00