f8cfda60f1 refactor: simplify and optimize creation of rotation IS quorum in functional tests (Konstantin Akimov)
Pull request description:
## Issue being fixed or feature implemented
Mining rotation quorum currently is not trivial. All over a codebase used this template to get a rotating quorum:
```
self.move_to_next_cycle()
self.log.info("Cycle H height:" + str(self.nodes[0].getblockcount()))
self.move_to_next_cycle()
self.log.info("Cycle H+C height:" + str(self.nodes[0].getblockcount()))
self.move_to_next_cycle()
self.log.info("Cycle H+2C height:" + str(self.nodes[0].getblockcount()))
self.mine_cycle_quorum(llmq_type_name='llmq_test_dip0024', llmq_type=103)
```
The performance of this code is not great also because generating 3 or 4 batches of blocks requires time to sync nodes after each batch.
## What was done?
This PR move instantly to 3-4 DKG sessions forward and starts from cycling quorum.
It's only one cycling quorum (instant-send), so, extra params are also removed.
To get it just call:
```
self.mine_cycle_quorum() # first time, which is usually used to get IS feature working in functional tests
self.mine_cycle_quorum(is_first=False) # if you don't need preparing 3 DKG sessions in advance
```
## How Has This Been Tested?
Run unit and functional tests
By my benchmark it gives roughly 10 seconds for each functional test that uses rotation quorum.
## Breaking Changes
N/A
## Checklist:
- [x] I have performed a self-review of my own code
- [x] I have commented my code, particularly in hard-to-understand areas
- [x] I have added or updated relevant unit/integration/functional/e2e tests
- [x] I have made corresponding changes to the documentation
- [x] I have assigned this pull request to a milestone _(for repository code-owners and collaborators only)
ACKs for top commit:
PastaPastaPasta:
utACK f8cfda60f1b47c358f8fbca3eaccb6f7a7fbf310; I wish that is_first could be automatically detected instead of manually set.
UdjinM6:
utACK f8cfda60f1
Tree-SHA512: 993f42b54c0c11ba146e164cc6db8b5c3f302dd78488aa2572b3ed199d25c266d8d1ff1a027a4e450eab2349b691c19fcd8f5859e2c423ccf2357db29ee3d536
852f55e23c merge bitcoin#24932: Convert lint-locale-dependence.sh to Python (Kittywhiskers Van Gogh)
f745b7f7ef merge bitcoin#24802: convert format strings linter test to python (Kittywhiskers Van Gogh)
a0b051b4ef partial revert dash#4807: enable more multi-threading and caching in linters (Kittywhiskers Van Gogh)
7864c21645 merge bitcoin#24895: Convert lint-includes.sh to Python (Kittywhiskers Van Gogh)
f63bafe253 merge bitcoin#24853: Convert lint-git-commit-check.sh to Python (Kittywhiskers Van Gogh)
d463d7d397 fix: clone full history on GitHub Actions build job, track `develop` (Kittywhiskers Van Gogh)
d23b6614e8 merge bitcoin#24844: Convert lint-whitespace.sh to Python (Kittywhiskers Van Gogh)
fe165168ba merge bitcoin#24849: Convert lint-logs.sh to Python (Kittywhiskers Van Gogh)
dbfd0b04e1 merge bitcoin#24766: convert spellchecking lint test to python (Kittywhiskers Van Gogh)
5c23addddd merge bitcoin#24778: Convert Python dead code linter test to Python (Kittywhiskers Van Gogh)
829dcfb936 partial bitcoin#23462: Enable SC2046 and SC2086 shellcheck rules (Kittywhiskers Van Gogh)
df6be0e8c0 partial bitcoin#23212: enable mypy import checking (Kittywhiskers Van Gogh)
f77eca9256 fix: make sure that parallelized `lint-all` runs incl. python scripts (Kittywhiskers Van Gogh)
e220175d0f merge bitcoin#22861: Update test README and lint script (Kittywhiskers Van Gogh)
Pull request description:
## Additional Information
* Dependency for https://github.com/dashpay/dash/pull/6429
* Even though support for Python scripts was extended to `lint-all` in [bitcoin#24762](f226e8dc1f) ([dash#6023](https://github.com/dashpay/dash/pull/6023)), the changes needed were not extended to parallelized linting added in [dash#4637](https://github.com/dashpay/dash/pull/4637).
This meant the match expression didn't include non-shell scripts and additionally, `parallel` interpreted all scripts as Bash scripts. This has been resolved in this PR.
* [bitcoin#23212](https://github.com/bitcoin/bitcoin/pull/23212) is partial as `--ignore-missing-imports` has not been removed from `mypy` arguments as the version of `mypy` used in the PR (0.910) isn't syntax aware to `imports` like [here](f9d044d5ec/test/functional/test_framework/crypto/bip324_cipher.py (L16-L17)) and [here](f9d044d5ec/test/functional/test_framework/crypto/muhash.py (L9)).
<details>
<summary>Lint errors:</summary>
```
dash@96b217d539f7:/src/dash$ ./test/lint/lint-python.sh
Consider install flake8-cached for cached flake8 results.
[...]
test/functional/test_framework/crypto/muhash.py:9: error: Skipping analyzing ".chacha20": found module but no type hints or library stubs [import]
test/functional/test_framework/crypto/ellswift.py:15: error: Cannot find implementation or library stub for module named "test_framework.crypto.secp256k1" [import]
test/functional/test_framework/crypto/bip324_cipher.py:16: error: Skipping analyzing ".chacha20": found module but no type hints or library stubs [import]
test/functional/test_framework/crypto/bip324_cipher.py:17: error: Skipping analyzing ".poly1305": found module but no type hints or library stubs [import]
test/functional/test_framework/messages.py:29: error: Cannot find implementation or library stub for module named "test_framework.crypto.siphash" [import]
test/functional/test_framework/messages.py:32: error: Cannot find implementation or library stub for module named "dash_hash" [import]
test/functional/test_framework/script.py:20: error: Cannot find implementation or library stub for module named "test_framework.crypto.ripemd160" [import]
test/functional/test_framework/key.py:16: error: Cannot find implementation or library stub for module named "test_framework.crypto" [import]
test/functional/test_framework/v2_p2p.py:9: error: Cannot find implementation or library stub for module named "test_framework.crypto.bip324_cipher" [import]
test/functional/test_framework/v2_p2p.py:10: error: Cannot find implementation or library stub for module named "test_framework.crypto.chacha20" [import]
test/functional/test_framework/v2_p2p.py:11: error: Cannot find implementation or library stub for module named "test_framework.crypto.ellswift" [import]
test/functional/test_framework/v2_p2p.py:12: error: Cannot find implementation or library stub for module named "test_framework.crypto.hkdf" [import]
test/functional/p2p_v2_encrypted.py:22: error: Cannot find implementation or library stub for module named "test_framework.crypto.chacha20" [import]
test/functional/feature_utxo_set_hash.py:12: error: Cannot find implementation or library stub for module named "test_framework.crypto.muhash" [import]
Found 17 errors in 12 files (checked 275 source files)
```
</details>
And upgrading to the latest version of `mypy` used upstream (1.4.1, [source](f7144b24be/ci/lint/04_install.sh (L52))) brings syntax awareness but new errors.
<details>
<summary>Lint errors:</summary>
```
dash@96b217d539f7:/src/dash$ ./test/lint/lint-python.sh
Consider install flake8-cached for cached flake8 results.
[...]
test/functional/test_framework/coverage.py:23: error: Incompatible default for argument "coverage_logfile" (default has type "None", argument has type "str") [assignment]
test/functional/test_framework/coverage.py:23: note: PEP 484 prohibits implicit Optional. Accordingly, mypy has changed its default to no_implicit_optional=True
test/functional/test_framework/coverage.py:23: note: Use https://github.com/hauntsaninja/no_implicit_optional to automatically upgrade your codebase
test/functional/test_framework/util.py:322: error: Incompatible default for argument "timeout" (default has type "None", argument has type "int") [assignment]
test/functional/test_framework/util.py:322: note: PEP 484 prohibits implicit Optional. Accordingly, mypy has changed its default to no_implicit_optional=True
test/functional/test_framework/util.py:322: note: Use https://github.com/hauntsaninja/no_implicit_optional to automatically upgrade your codebase
test/functional/test_framework/util.py:322: error: Incompatible default for argument "coveragedir" (default has type "None", argument has type "str") [assignment]
test/functional/test_framework/messages.py:32: error: Cannot find implementation or library stub for module named "dash_hash" [import]
test/functional/test_framework/test_framework.py:122: note: By default the bodies of untyped functions are not checked, consider using --check-untyped-defs [annotation-unchecked]
test/functional/test_framework/test_framework.py:123: note: By default the bodies of untyped functions are not checked, consider using --check-untyped-defs [annotation-unchecked]
test/functional/test_framework/test_framework.py:124: note: By default the bodies of untyped functions are not checked, consider using --check-untyped-defs [annotation-unchecked]
test/functional/test_framework/test_framework.py:125: note: By default the bodies of untyped functions are not checked, consider using --check-untyped-defs [annotation-unchecked]
test/functional/p2p_message_capture.py:48: note: By default the bodies of untyped functions are not checked, consider using --check-untyped-defs [annotation-unchecked]
Found 6 errors in 5 files (checked 275 source files)
```
</details>
* [bitcoin#23462](https://github.com/bitcoin/bitcoin/pull/23462) is partial as neither `SC2046` nor `SC2086` have been enabled. This backport was done for the sole purpose of backporting changes to shell scripts that would be replaced with their Python counterparts in later backports.
The necessary changes needed to enable `SC2046` and `SC2086` will be done in a later pull request.
* `actions/checkout` does not do a full clone nor tracks the default branch by default. It is already documented that `git merge-base` (used by `lint-git-commit-check.py` and `lint-whitespace.py`, [source](4aaa314a57/test/lint/lint-git-commit-check.py (L45))) doesn't play nice with it (see [actions/checkout#423](https://github.com/actions/checkout/discussions/423)).
No such issue exists on GitLab ([build](https://gitlab.com/dashpay/dash/-/jobs/8456260939#L113)), but it remains present on GitHub Actions ([build](https://github.com/dashpay/dash/actions/runs/11996049800/job/33440106874?pr=6428#step:7:103)). This PR does a full clone, switches to the `develop` branch, then switches back to the intended commit, as a workaround (see working build [here](https://github.com/dashpay/dash/pull/6428#issuecomment-2495980410))
* Changes to `run-lint-format-strings.py` made in [dash#4807](https://github.com/dashpay/dash/pull/4807) were reverted as they were interfering with `lint-format-strings.py`
<details>
<summary>Lint error:</summary>
```
dash@96b217d539f7:/src/dash$ ./test/lint/lint-format-strings.py
Traceback (most recent call last):
File "/src/dash/test/lint/run-lint-format-strings.py", line 308, in <module>
main()
File "/src/dash/test/lint/run-lint-format-strings.py", line 304, in main
sys.exit(max(exit_codes))
ValueError: max() arg is an empty sequence
Traceback (most recent call last):
File "/src/dash/test/lint/run-lint-format-strings.py", line 308, in <module>
main()
File "/src/dash/test/lint/run-lint-format-strings.py", line 304, in main
sys.exit(max(exit_codes))
ValueError: max() arg is an empty sequence
```
</details>
## Breaking Changes
None expected.
## Checklist
- [x] I have performed a self-review of my own code
- [x] I have commented my code, particularly in hard-to-understand areas **(note: N/A)**
- [x] I have added or updated relevant unit/integration/functional/e2e tests
- [x] I have made corresponding changes to the documentation
- [x] I have assigned this pull request to a milestone _(for repository code-owners and collaborators only)_
ACKs for top commit:
knst:
utACK 852f55e23c
UdjinM6:
utACK 852f55e23c
Tree-SHA512: e508311c00249e7e48f91ca23e6f62117c07497f9c4471d07659b233e43a9f4d09ee2bfe0dd76f0c9746209cdba5895cb002a708924daa19d7aa76869815a7d9
2d7c7f81b8 fix: do not transfer wallet ownership to CTransactionBuilder{Output} (UdjinM6)
0aeeb8583a fix: add missing `AddWallet` call in `TestLoadWallet` (UdjinM6)
e800d9d09c fix: hold wallet shared pointer in CJ Manager/Sessions to prevent concurrent unload (UdjinM6)
Pull request description:
## Issue being fixed or feature implemented
https://github.com/dashpay/dash/pull/6440#discussion_r1865042366
## What was done?
## How Has This Been Tested?
## Breaking Changes
## Checklist:
- [ ] I have performed a self-review of my own code
- [ ] I have commented my code, particularly in hard-to-understand areas
- [ ] I have added or updated relevant unit/integration/functional/e2e tests
- [ ] I have made corresponding changes to the documentation
- [ ] I have assigned this pull request to a milestone _(for repository code-owners and collaborators only)_
ACKs for top commit:
PastaPastaPasta:
utACK 2d7c7f81b8
Tree-SHA512: 308e3bed077baa2167b7f9d81b87e5a61a113e4d465706548f303dfc499bc072d4e823e85772e591a879986b0fb0413d5afe0e3995e1f939fa772b29adc0300d
e5114da325 fix: coin selection with `include_unsafe` option should respect `nCoinType` (UdjinM6)
Pull request description:
## Issue being fixed or feature implemented
The issue was introduced in #6074 via 69c5aa8947
## What was done?
## How Has This Been Tested?
## Breaking Changes
## Checklist:
- [ ] I have performed a self-review of my own code
- [ ] I have commented my code, particularly in hard-to-understand areas
- [ ] I have added or updated relevant unit/integration/functional/e2e tests
- [ ] I have made corresponding changes to the documentation
- [ ] I have assigned this pull request to a milestone _(for repository code-owners and collaborators only)_
ACKs for top commit:
PastaPastaPasta:
utACK e5114da325
kwvg:
utACK e5114da325
Tree-SHA512: 5d4e22f9d2cecf2239185e0f4c9d8b29b995b25b4f53a74d6c9b7929aac6ec918ebfb4029a83b72a003fe42fe82619f7ab4892d620bf5846cadf99f1f0cb0969
36893e4ba4 fix: add platform transfer to "most common" filter on transactions tab (Konstantin Akimov)
d033a3ae06 refactor: change mask from Dec presentation to Hex for transaction filter (Konstantin Akimov)
Pull request description:
## Issue being fixed or feature implemented
Follow-up https://github.com/dashpay/dash/pull/6131 - missing 'Platform Transfer' in the list of most common. Reported by splawik.
## What was done?
Updated filter, added comment to prevent similar mistakes in future, present filter in hex for better readability.
## How Has This Been Tested?
Transaction with platform transfer appeared in filter "Most Common"
![image](https://github.com/user-attachments/assets/ccc17553-d71a-45f8-be2f-8ce5fb699c1a)
Also they are added to Overview page (compare screenshots by 'address' field)
![image](https://github.com/user-attachments/assets/ea657672-46c8-4a66-a972-15768feb4d57)
## Breaking Changes
N/A
## Checklist:
- [x] I have performed a self-review of my own code
- [ ] I have commented my code, particularly in hard-to-understand areas
- [ ] I have added or updated relevant unit/integration/functional/e2e tests
- [ ] I have made corresponding changes to the documentation
- [x] I have assigned this pull request to a milestone
ACKs for top commit:
UdjinM6:
utACK 36893e4ba4
PastaPastaPasta:
utACK 36893e4ba4
Tree-SHA512: e072b78e257b2c262a912a3cc0daebde93aca655edfee9bbf4869f2528f10377d7d234c73c4fd7ab6006e87607d5a7c4eddd7634d55b16d1b3885d0bc48f225a
4629bb9ba5 fix: add missing cs_main annotation for ForceSignalDBUpdate (Konstantin Akimov)
05041a4572 fix: force ehf signal db update (UdjinM6)
94d80323d4 fix: typo name of key (Konstantin Akimov)
9ceba88cdb style: clang suggestion (Konstantin Akimov)
c6bb9a5685 perf: re-use evo data about signals between v20 and mn_rr as non-corrupted (Konstantin Akimov)
7a7c9f12a4 fix: early EHF and buried EHF are indistinguish (Konstantin Akimov)
Pull request description:
## Issue being fixed or feature implemented
It seems as EHF signal will be mined before node is updated, this signal is lost and node can't activate hard-fork anymore.
## What was done?
EHF signals doesn't expire anymore.
To avoid full re-index key in database is changed.
Client with enabled "pruned mode" will be required to do re-index.
Alternate solution - revert this commit 4b046bb608 and introduce time-out for expiring EHF signals.
## How Has This Been Tested?
Test on my local instance with testnet and mainnet.
Testing on miner-1 on testnet is done.
First start of miner took 50 seconds, 29 of them the node was re-scanning blockchain and looking for EHF transaction
## Breaking Changes
It requires re-index for nodes with enabled pruning of blocks.
## Checklist:
- [ ] I have performed a self-review of my own code
- [ ] I have commented my code, particularly in hard-to-understand areas
- [ ] I have added or updated relevant unit/integration/functional/e2e tests
- [ ] I have made corresponding changes to the documentation
- [x] I have assigned this pull request to a milestone _(for repository code-owners and collaborators only)_
ACKs for top commit:
PastaPastaPasta:
utACK [4629bb9](4629bb9ba5)
UdjinM6:
utACK 4629bb9ba5
Tree-SHA512: 189533da5726edbcf2d9cf0e9a3957a10ebc223c25fd88aec3aa9095ae2e7d955ea1f7a1384bc2c97a0cc06110c9e38845a8cafdbd56ff9637bb907ddc639850
da0b8e2ce1 refactor: drop unneeded MIN_PEER_PROTO_VERSION from RelayInv (pasta)
94da0de6ef refactor: implement minimal RelayInv which doesn't rely on m_connman (pasta)
Pull request description:
## Issue being fixed or feature implemented
Vast majority of usages of RelayInv don't use the minProtoVersion, we may as well have these not contribute to contention of m_nodes_mutex / use m_connman
## What was done?
new implementation of RelayInv which doesn't rely on m_connman
## How Has This Been Tested?
See CI
## Breaking Changes
## Checklist:
- [ ] I have performed a self-review of my own code
- [ ] I have commented my code, particularly in hard-to-understand areas
- [ ] I have added or updated relevant unit/integration/functional/e2e tests
- [ ] I have made corresponding changes to the documentation
- [x] I have assigned this pull request to a milestone _(for repository code-owners and collaborators only)_
ACKs for top commit:
kwvg:
utACK da0b8e2ce1
knst:
utACK da0b8e2ce1
UdjinM6:
utACK da0b8e2ce1
Tree-SHA512: 55e3e18607f3da104a943e09b29068ecf3bced869efbc804d6242c818ec3f7eb6768ea0cc6a409677559d3206dfc21bfff096a050ebbeb903e3fc2883e9bc8a4
0a63029c96 feat: increase threshold from 2000 DASH to 21M DASH for CJ amount in option (Konstantin Akimov)
Pull request description:
## Issue being fixed or feature implemented
With rpc and command line option you can choose any amount of CJ (threshold to stop), but UI let to choose maximum 2000 Dash.
Assuming, that Evo collateral is 4000 it's unwisely to limit UI to just 2k.
## What was done?
Limits are increased to `MAX_COINJOIN_AMOUNT` (21M)
## How Has This Been Tested?
Run UI and set
## Breaking Changes
n/a
## Checklist:
- [x] I have performed a self-review of my own code
- [ ] I have commented my code, particularly in hard-to-understand areas
- [ ] I have added or updated relevant unit/integration/functional/e2e tests
- [ ] I have made corresponding changes to the documentation
- [x] I have assigned this pull request to a milestone
ACKs for top commit:
UdjinM6:
utACK 0a63029c96
PastaPastaPasta:
utACK 0a63029c96
Tree-SHA512: 0e3498b3788e3786d51b4f0534e719201ce2c90ddba094f7e1d7a8ee5f88d860db62efc480c1910d80fe2c0ec4536c9f339a4a0c36ab781974da03b1453cdfd0
37fbdee1d9 feat: do not mine extra quorum in feature_dip3_v19.py (Konstantin Akimov)
70ba007f1a feat: do not mine extra quorum in feature_llmq_evo.py (Konstantin Akimov)
129385d349 feat: remove regular masternodes from feature_asset_locks tests (Konstantin Akimov)
8ea45bbf69 fix: make helper get_merkle_root works with no masternodes (Konstantin Akimov)
7e0c2ca5a5 fix: make dynamic masternode register even without is-quorum (Konstantin Akimov)
Pull request description:
This PR has important fixes to implement "single-node quorum" feature.
## Issue being fixed or feature implemented
Without IS-quorum you can not dynamically add a new MN or Evo node.
For evo nodes adding it dynamically is the only way.
## What was done?
Fixed a function that dynamically adds a masternode without Instant Send quorums; use it in a functional test feature_asset_locks.py
As side effect it improves performance of functional tests which do not wait more IS lock significantly; for feature_asset_locks.py it gave ~20 seconds per run.
## How Has This Been Tested?
See updates in `feature_asset_locks.py`, `feature_llmq_evo.py`, `feature_dip3_v19.py`
## Breaking Changes
N/A
## Checklist:
- [x] I have performed a self-review of my own code
- [x] I have commented my code, particularly in hard-to-understand areas
- [x] I have added or updated relevant unit/integration/functional/e2e tests
- [x] I have made corresponding changes to the documentation
- [x] I have assigned this pull request to a milestone _(for repository code-owners and collaborators only)_
ACKs for top commit:
UdjinM6:
utACK 37fbdee1d9
PastaPastaPasta:
utACK 37fbdee1d9
Tree-SHA512: 2da036ccd9842946f20450606621108fa8cd8fae31927ac2d1fc5f02bf9c2f6955a67e23ef76141a02299510c8cbf206fcd4947b0ec41b776fe80f70947afc14
Vast majority of usages of RelayInv don't use the minProtoVersion, we may as well have these not contribute to contention of m_nodes_mutex / use m_connman
6f75a7f601 refactor: use swap instead assign+clean in GetAndClearDirtyGovernanceObjectHashes (Konstantin Akimov)
83e0bb6e35 fix: potential bug due to unspecified state of std::vector after move (Konstantin Akimov)
Pull request description:
## Issue being fixed or feature implemented
All standard library objects that have been moved from are placed in a "valid but unspecified state", meaning the object's class invariants hold (so functions without preconditions, such as the assignment operator, can be safely used on the object after it was moved from). See example:
```
std::vector<int> v = {2, 3, 3};
std::vector<int> u = std::move(v); // the value of v is unspecified
v.clear(); // we are good now
```
Instead, let's have swap better!
```
WITH_LOCK(cs_pendingSigns, v.swap(pendingSigns));
```
## What was done?
Fixed `CSigSharesManager::SignPendingSigShares`, `CSigningManager::ProcessPendingReconstructedRecoveredSigs` and refactored `CMasternodeMetaMan::GetAndClearDirtyGovernanceObjectHashes` for unification.
## How Has This Been Tested?
Run unit and functional tests.
## Breaking Changes
N/A
## Checklist:
- [x] I have performed a self-review of my own code
- [ ] I have commented my code, particularly in hard-to-understand areas
- [ ] I have added or updated relevant unit/integration/functional/e2e tests
- [ ] I have made corresponding changes to the documentation
- [x] I have assigned this pull request to a milestone
ACKs for top commit:
PastaPastaPasta:
utACK 6f75a7f601
UdjinM6:
utACK 6f75a7f601
Tree-SHA512: 5dd8664dbe9ce78329dfae24f6e8b67b7032ff7d2c066da0e01c4ed1b13bf76359a0307ee76e5b006820318693f067b505e59408614f47ee2fa8a979a1e0dc4d
1bba72d824224f8a2625f529963d8982a00dfe14 Clarify in -maxtimeadjustment that only outbound peers influence time data (Jon Atack)
Pull request description:
#23631 changed our adjusted time to only take into account time from outbound peers.
Update `-maxtimeadjustment` to clarify this for users.
ACKs for top commit:
MarcoFalke:
cr ACK 1bba72d824224f8a2625f529963d8982a00dfe14
mzumsande:
code Review ACK 1bba72d824224f8a2625f529963d8982a00dfe14
brunoerg:
crACK 1bba72d824224f8a2625f529963d8982a00dfe14
Tree-SHA512: ad610ab3038fb83134e21d31cca952ef9ac926e88992ff93023b7010f2499f9a4d952e8e98a0ec56f8949872d966e5ffdd01a81e6b6115768f1992bd81be7a56
0c85dc30e6b628f7538a67776c7eefcb84ef4f82 p2p: Don't use timestamps from inbound peers (Martin Zumsande)
Pull request description:
`GetAdjustedTime()` (used e.g. in validation and addrman) returns a time with an offset that is influenced by timestamps that our peers have sent us in their version message.
Currently, timestamps from all peers are used for this.
However, I think that it would make sense to ignore the timedata samples from inbound peers, making it much harder for others to influence the Adjusted Time in a targeted way.
With the extra feeler connections (every 2 minutes on average) and extra block-relay-only connections (every 5 minutes on average) there are also now plenty of opportunities to gather a meaningful number of timedata samples from outbound peers.
There are some measures in place to prevent abuse: the `-maxtimeadjustment` parameter with a default of 70 minutes, warnings in cases of large deviations, only using the first 200 samples ([explanation](383d350bd5/src/timedata.cpp (L57-L72))), but I think that only using samples from outbound connections in the first place would be an additional safety measure that would make sense.
See also issue #4521 for further context and links: There have been several discussions in the past about replacing or abolishing the existing timedata system.
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jnewbery:
Concept and code review ACK 0c85dc30e6b628f7538a67776c7eefcb84ef4f82
naumenkogs:
ACK 0c85dc30e6b628f7538a67776c7eefcb84ef4f82
vasild:
ACK 0c85dc30e6b628f7538a67776c7eefcb84ef4f82
Tree-SHA512: 2d6375305bcae034d68b58b7a07777b40ac430dfed554c88e681a048c527536691e1b7d08c0ef995247d356f8e81aa0a4b983bf2674faf6a416264e5f1af0a96
fad81548fa03861c244397201d6b6e6cbf883c38 test: Avoid testing negative block heights (MarcoFalke)
Pull request description:
A negative chain height is only used to denote an empty chain, not the height of any block.
So stop testing that and remove a suppression.
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brunoerg:
crACK fad81548fa03861c244397201d6b6e6cbf883c38
Tree-SHA512: 0f9e91617dfb6ceda99831e6cf4b4bf0d951054957c159b1a05a178ab6090798fae7368edefe12800da24585bcdf7299ec3534f4d3bbf5ce6a6eca74dd3bb766