Commit Graph

7 Commits

Author SHA1 Message Date
Marek 2a48d4cf25
change(chain): Refactor the handling of height differences (#6330)
* Unify the `impl`s of `Sub` and `Add` for `Height`

* Adjust tests for `Height` subtraction

* Use `Height` instead of `i32`

* Use `block:Height` in RPC tests

* Use `let .. else` statement

Co-authored-by: Arya <aryasolhi@gmail.com>

* Update zebra-consensus/src/block/subsidy/general.rs

* Refactor the handling of height differences

* Remove a redundant comment

* Update zebrad/src/components/sync/progress.rs

Co-authored-by: Arya <aryasolhi@gmail.com>

* Update progress.rs

* impl TryFrom<u32> for Height

* Make some test assertions clearer

* Refactor estimate_up_to()

* Restore a comment that was accidentally removed

* Document when estimate_distance_to_network_chain_tip() returns None

* Change HeightDiff to i64 and make Height.sub(Height) return HeightDiff (no Option)

* Update chain tip estimates for HeightDiff i64

* Update subsidy for HeightDiff i64

* Fix some height calculation test edge cases

* Fix the funding stream interval calculation

---------

Co-authored-by: Arya <aryasolhi@gmail.com>
Co-authored-by: teor <teor@riseup.net>
2023-03-29 23:06:31 +00:00
teor 80a6d3cdab
change(rpc): Return from long polling immediately when the chain tip changes (#5862)
* Add constants and fix comments for mempool timer / state watch

* Add a best_tip_changed() method to trait ChainTip

* Check for chain tip changes using a future, and return on error

* Ignore state changes before the most recent state fetch

* Add a submit old field to the getblocktemplate RPC during long polling

* Make the submit_old field optional, rather than `null` in JSON

* Update some TODOs

* Add long polling snapshot tests, use RON for deserialized coinbase fields

* Clarify some comments

* Simplify the BestTipChanged future implementations

* Fix some comment typos
2022-12-15 15:33:00 +00:00
Arya 57fde15e5e
change(rpc): return an error from getblocktemplate method if Zebra is not synced to network tip (#5623)
* Returns error from getblocktemplate if not synced

* sets max estimated distance to 1

* removes unnecessary calls to best_tip_height

adds info log when estimated_distance_to_chain_tip is too high

* trigger GitHub actions

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
2022-11-18 00:12:10 +00:00
teor e973508911
build(deps): bump chrono from 0.4.19 to 0.4.20 (#4898)
* Bump chrono to 0.4.20

* Fix clippy::assign_op_pattern

* Update deprecated constant names

* Drop old `time` crate dependency from `chrono`

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
2022-08-28 17:08:27 +00:00
Alfredo Garcia f687ab947f
feat(rpc): Implement `getblockchaininfo` RPC method (#3891)
* Implement `getblockchaininfo` RPC method

* add a test for `get_blockchain_info`

* fix tohex/fromhex

* move comment

* Update lightwalletd acceptance test for getblockchaininfo RPC (#3914)

* change(rpc): Return getblockchaininfo network upgrades in height order (#3915)

* Update lightwalletd acceptance test for getblockchaininfo RPC

* Update some doc comments for network upgrades

* List network upgrades in order in the getblockchaininfo RPC

Also:
- Use a constant for the "missing consensus branch ID" RPC value
- Simplify fetching consensus branch IDs
- Make RPC type derives consistent
- Update RPC type documentation

* Make RPC type derives consistent

* Fix a confusing test comment

* get hashand height at the same time

* fix estimated_height

* fix lint

* add extra check

Co-authored-by: Janito Vaqueiro Ferreira Filho <janito.vff@gmail.com>

* fix typo

Co-authored-by: Janito Vaqueiro Ferreira Filho <janito.vff@gmail.com>

* split test

Co-authored-by: Janito Vaqueiro Ferreira Filho <janito.vff@gmail.com>

* fix(rpc): ignore an expected error in the RPC acceptance tests (#3961)

* Add ignored regexes to test command failure regex methods

* Ignore empty chain error in getblockchaininfo

We expect this error when zebrad starts up with an empty state.

Co-authored-by: teor <teor@riseup.net>
Co-authored-by: Janito Vaqueiro Ferreira Filho <janito.vff@gmail.com>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
2022-03-25 12:25:31 +00:00
Janito Vaqueiro Ferreira Filho eb98b7a4b2
Estimate network chain tip height based on local node time and current best tip (#3492)
* Remove redundant documentation

The documentation was exactly the same as the documentation from the
trait.

* Calculate a mock time block delta for tests

Simulate a block being added to the chain with a random block time based
on the previous block time and the target spacing time.

* Add a `time` field to `ChainTipBlock`

Store the block time so that it's ready for a future chain that allows
obtaining the chain tip's block time.

* Add `ChainTip::best_tip_block_time` method

Allow obtaining the bes chain tip's block time.

* Add method to obtain both height and block time

Prevent any data races by returning both values so that they refer to
the same chain tip.

* Add `NetworkUpgrade::all_target_spacings` method

Returns all the target spacings defined for a network.

* Create a `NetworkChainTipEstimator` helper type

Isolate the code to calculate the height estimation in a new type, so
that it's easier to understand and doesn't decrease the readability of
the `chain_tip.rs` file.

* Add `ChainTip::estimate_network_chain_tip_height`

This is more of an extension method than a trait method. It uses the
`NetworkChainTipHeightEstimator` to actually perform the estimation, but
obtains the initial information from the current best chain tip.

* Fix typo in documentation

There was an extra closing bracket in the summary line.

* Refactor `MockChainTipSender` into a separate type

Prepare to allow mocking the block time of the best tip as well as the
block height.

* Allow sending mock best tip block times

Add a separate `watch` channel to send the best tip block times from a
`MockChainTipSender` to a `MockChainTip`.

The `best_tip_height_and_block_time` implementation will only return a
value if there's a height and a block time value for the best tip.

* Fix off-by-one height estimation error

Use Euclidean division to force the division result to round down
instead of rounding towards zero. This fixes an off-by-one error when
estimating a height that is lower than the current height, because the
fractionary result was being discarded, and it should have forced the
height to go one block back.

* Fix panics on local times very far in the past

Detect situations that might cause the block height estimate to
underflow, and return the genesis height instead.

* Fix another off-by-one height estimation error

The implementation of `chrono::Duration::num_seconds` adds one to the
number of seconds if it's negative. This breaks the division
calculation, so it has to be compensated for.

* Test network chain tip height estimation

Generate pairs of block heights and check that it's possible to estimate
the larger height from the smaller height and a displaced time
difference.
2022-02-11 01:27:02 +00:00
teor d076b999f3
Fix syncer download order and add sync tests (#3168)
* Refactor so that RetryLimit::Future is std::marker::Sync

* Make the syncer future std::marker::Send by spawning tips futures

* Download synced blocks in chain order, not HashSet order

* Improve MockService failure messages

* Add closure-based responses to the MockService API

* Move MockChainTip to zebra-chain

* Add a MockChainTipSender type alias

* Support MockChainTip in ChainSync and its downloader

* Add syncer tests for obtain tips, extend tips, and wrong block hashes

* Add block too high tests for obtain tips and extend tips

* Add syncer tests for duplicate FindBlocks response hashes

* Allow longer request delays for mocked services in syncer tests
2022-01-11 14:11:35 -03:00