faf8dc496e fuzz: Remove legacy int parse fuzz tests (MarcoFalke)
Pull request description:
The fuzz tests checked that the result of the new function was equal to the legacy function. (Side note: The checks were incomplete, as evident by the follow-up fix in commit b5c9bb5cb9).
Given that they haven't found any issues in years (beside missing the above issue, that they couldn't catch), it seems time to remove them.
They may come in handy in the rare case that someone would want to modify `LocaleIndependentAtoi()` or `Parse*Int*()`, however that seems unlikely. Also, appropriate checks can be added then.
ACKs for top commit:
fanquake:
ACK faf8dc496e
dergoegge:
ACK faf8dc496e
Tree-SHA512: 4ec88b9fa8ba49a923b0604016f0f471b3c9b9e0ba6c5c3dc4e20503c6994789921e7221d9ec467a2a37a73f21a70ba51ba3370ed5ad311dee989e218290b29a
cd0c8eeb09 [net] Pass nRecvFloodSize to CNode (dergoegge)
860402ef2e [net] Remove trivial GetConnectionType() getter (dergoegge)
b5a85b365a [net] Delete CNetMessage copy constructor/assignment op (dergoegge)
Pull request description:
Follow-up PR for #27257
* Deletes the copy constructor/assignment operator of `CNetMessage`
* Removes trivial getter for the connection type
* Avoids passing `nRecvFloodSize` to CNode methods by passing it to `CNode` on creation
ACKs for top commit:
jnewbery:
utACK cd0c8eeb09
theStack:
ACK cd0c8eeb09
Tree-SHA512: 673a758668617f69fba77e61f0eaa1538da27a4849c82c98742436692baa2d7f001129af3e7a66b160e599d12109dac08137a146f10ff9b9ebdc5c2237311d41
9a1d73fdff Fix segfault when shutdown during wallet open (John Moffett)
Pull request description:
Fixes #689
## Summary
If you open a wallet and send a shutdown signal during that process, you'll get a segfault when the wallet finishes opening. That's because the `WalletController` object gets deleted manually in bitcoin.cpp during shutdown, but copies of the pointer (and pointers to child objects) are dangling in various places and are accessed in queued events after the deletion.
## Details
The issue in #689 is caused by the following sequence of events:
1. Wallet open modal dialog is shown and worker thread does the actual work.
2. Every 200ms, the main event loop checks to see if a shutdown has been requested, but only if a modal is not being shown.
3. Request a shutdown while the modal window is shown.
4. The wallet open process completes, the modal window is dismissed, and various `finish` signals are sent.
5. During handling of one of the `finish` signals, `qApp->processEvents()` is [called](e9262ea32a/src/qt/sendcoinsdialog.cpp (L603)), which causes the main event loop to detect the shutdown (now that the modal window has been dismissed). The `WalletController` and all the `WalletModel`s are [deleted](65de8eeeca/src/qt/bitcoin.cpp (L394-L401)).
6. Control returns to the `finish` method, which eventually tries to send a [signal](e9262ea32a/src/qt/sendcoinsdialog.cpp (L167)) from a wallet model, but it's been deleted already (and the signal is sent from a now-[dangling](d8bdee0fc8/src/qt/walletview.cpp (L65)) pointer).
The simplest fix for that is to change the `qApp->processEvents()` into a `QueuedConnection` call. (The `qApp->processEvents() was a [workaround](https://github.com/bitcoin/bitcoin/pull/593#issuecomment-3050699) to get the GUI to scroll to the last item in a list that just got added, and this is just a safer way of doing that).
However, once that segfault is fixed, another segfault occurs due to some queued wallet events happening after the wallet controller object is deleted here:
65de8eeeca/src/qt/bitcoin.cpp (L394-L401)
Since `m_wallet_controller` is a copy of that pointer in `bitcoingui.cpp`, it's now dangling and `if(null)` checks won't work correctly. For instance, this line:
65de8eeeca/src/qt/bitcoingui.cpp (L413)
sets up a `QueuedConnection` to `setCurrentWallet`, but by the time control reaches that method (one event cycle after shutdown deleted `m_wallet_controller` in `bitcoin.cpp`), the underlying objects have been destroyed (but the pointers are still dangling).
Ideally, we'd use a `QPointer` or `std::shared_ptr / std::weak_ptr`s for these, but the changes would be more involved.
This is a minimal fix for the issues. Just set `m_wallet_controller` to `nullptr` in `bitcoingui.cpp`, check its value in a couple places, and avoid a use of `qApp->processEvents`.
ACKs for top commit:
hebasto:
ACK 9a1d73fdff, I have reviewed the code and it looks OK.
furszy:
ACK 9a1d73fdff
Tree-SHA512: a1b94676eb2fcb7606e68fab443b1565b4122aab93c35382b561842a049f4b43fecc459535370d67a64d6ebc4bcec0ebcda981fff633ebd41bdba6f7093ea540
8c47d599b8 doc: improve -debuglogfile help to be a bit clearer (jonatack)
20d89d6802 bench: document expected results in logging benchmarks (jonatack)
d8deba8c36 bench: add LogPrintfCategory and LogPrintLevel benchmarks (Jon Atack)
102b203349 bench: order the logging benchmark code by output (Jon Atack)
4b3fdbf6fe bench: update logging benchmark naming for clarity (Jon Atack)
4684aa8733 bench: allow logging benchmarks to be order-independent (Larry Ruane)
Pull request description:
Update our logging benchmarks for evaluating ongoing work like #25203 and refactoring proposals like #26619 and #26697.
- make the logging benchmarks order-independent (Larry Ruane)
- add missing benchmarks for the `LogPrintLevel` and `LogPrintfCategory` macros that our logging is migrating to; at some later point it should be feasible to drop some of the previous logging benchmarks
- update the logging benchmark naming to be clear which benchmark corresponds to which log macro, and update the ordering to be the same as the output
- add clarifying documentation to the logging benchmarks
- improve the `-debuglogfile` config option help to be clearer; can be tested by running `./src/bitcoind -help | grep -A4 '\-debuglogfile'`
Reviewers can run the logging benchmarks with:
```bash
./src/bench/bench_bitcoin -filter='LogP*.*'
```
ACKs for top commit:
LarryRuane:
ACK 8c47d599b8
martinus:
code review & tested ACK 8c47d599b8, here are my benchmark results:
achow101:
ACK 8c47d599b8
Tree-SHA512: 705f8720c9ceaf14a1945039c7578a0c17a12215cbc44908099af4ac444561c3f95d833c5a91b325cdd4470737d8a01e2da64db2d542dd7c9a3747fbfdbf213e
3566aa7d49 [net] Remove CNode friends (dergoegge)
3eac5e7cd1 [net] Add CNode helper for send byte accounting (dergoegge)
60441a3432 scripted-diff: [net] Rename CNode process queue members (dergoegge)
6693c499f7 [net] Make cs_vProcessMsg a non-recursive mutex (dergoegge)
23d9352654 [net] Make CNode msg process queue members private (dergoegge)
897e342d6e [net] Encapsulate CNode message polling (dergoegge)
cc5cdf8776 [net] Deduplicate marking received message for processing (dergoegge)
ad44aa5c64 [net] Add connection type getter to CNode (dergoegge)
Pull request description:
We should define clear interfaces between CNode, CConnman and PeerManager. This PR makes a small step in that direction by ending the friendship of CNode, CConnman and ConnmanTestMsg. CNode's message processing queue is made private in the process and its mutex is turned into a non-recursive mutex.
ACKs for top commit:
jnewbery:
utACK 3566aa7d49
vasild:
ACK 3566aa7d49
theStack:
re-ACK 3566aa7d49
brunoerg:
re-ACK 3566aa7d49
Tree-SHA512: 26b87da5054e32401b693b2904e9c5f40e35a53937c0b6cf44b8597034ad07bacf27d87cdffc54d3e7ccfebde4231ef30a38d326f88cc18133bbb34688ead567
f3221d373a test: add wallet too-long-mempool-chain error coverage (furszy)
acf0119d24 wallet: return error msg for too-long-mempool-chain failure (furszy)
Pull request description:
Fixes #23144.
We currently return a general "Insufficient funds" from Coin
Selection when we actually skipped unconfirmed UTXOs that
surpassed the mempool ancestors limit.
This PR make the error clearer by returning:
"Unconfirmed UTXOs are available, but spending them creates
a chain of transactions that will be rejected by the mempool"
Also, added an early return from Coin Selection if the sum of
the discarded coins decreases the available balance below the
target amount.
ACKs for top commit:
achow101:
ACK f3221d373a
S3RK:
Code review ACK f3221d373a
Xekyo:
ACK f3221d373a
Tree-SHA512: 13e5824b75ac302280ff894560a4ebf32a74f32fe49ef8281f2bc99c0104b92cef33d3b143c6e131f3a07eafe64533af7fc60abff585142c134b9d6e531a6a66
fa18504d57 rpc: Add submit option to generateblock (MarcoFalke)
fab9a08e14 refactor: Replace block_hash with block_out (MarcoFalke)
Pull request description:
When submit is turned off, a block can be generated and returned as hex, to be used for further tests. For example, it can be submitted on a different node, on a different interface (like p2p), or just never submitted and be used for other testing purposes.
ACKs for top commit:
instagibbs:
ACK fa18504d57
TheCharlatan:
tACK fa18504d57
Tree-SHA512: 1b2ab6b71bb7e155c6482d75f5373f4e77de6446cb16bc2dfd19e7a4075b3a6ad87d7ad7a049a9eed934cb71574acfd27202f54c8bb3b03fac869f2e95db7ee5
faf3f12424 refactor: Replace GetTimeMicros by SystemClock (MarcoFalke)
Pull request description:
It is unclear from the name that `GetTimeMicros` returns the system time. Also, it is not using the type-safe `std::chrono` types.
Fix both issues by replacing it with `SystemClock` in the only place it is used.
This refactor should not change behavior.
ACKs for top commit:
willcl-ark:
tACK faf3f1242
john-moffett:
ACK faf3f12424 changes, but left a comment for the existing code.
Tree-SHA512: 069e6ef26467a469f128b98a4aeb334f141742befd7880cb3a7d280480e9f0684dc0686fa6a828cdcb3d11943ae5c7f8ad5d9d9dab4c668be85e5d28c78cd489
fae349076d test: Remove unused Check* default constructors (MarcoFalke)
Pull request description:
They are no longer needed after the removal of `swap`, see https://github.com/bitcoin/bitcoin/pull/26749#discussion_r1144532693
Also, flatten a redundant `if` check.
ACKs for top commit:
hebasto:
ACK fae349076d
Tree-SHA512: c0bc0c16b5df0f16fc25e18d2414a2a3c4769da1aa30d53f8d267bc2e97dd79a0296db94c1e49cd1ca89bd42275d8c462f7bf47f03f105dfe867ebea6563454b
95ad70ab65 test: Default initialize `should_freeze` to `true` (Hennadii Stepanov)
cea50521fe refactor: Drop no longer used `swap` member functions (Hennadii Stepanov)
a87fb6bee5 clang-tidy: Fix modernize-use-default-member-init in `CScriptCheck` (Hennadii Stepanov)
b4bed5c1f9 refactor: Drop no longer used `CScriptCheck()` default constructor (Hennadii Stepanov)
d8427cc28e refactor: Use move semantics in `CCheckQueue::Loop` (Hennadii Stepanov)
9a0b524139 clang-tidy, test: Fix bugprone-use-after-move in `Correct_Queue_range()` (Hennadii Stepanov)
04831fee6d refactor: Make move semantics explicit for callers (Hennadii Stepanov)
6c2d5972f3 refactor: Use move semantics in `CCheckQueue::Add` (Hennadii Stepanov)
0682003214 test, refactor: Avoid `CScriptCheck::swap` in `transaction_tests` (Hennadii Stepanov)
15209d97c6 consensus, refactor: Avoid `CScriptCheck::swap` in `CheckInputScripts` (Hennadii Stepanov)
Pull request description:
This PR makes code more succinct and readable by using move semantics.
ACKs for top commit:
martinus:
re-ACK 95ad70ab65
achow101:
ACK 95ad70ab65
TheCharlatan:
re-ACK 95ad70ab65
MarcoFalke:
re-ACK 95ad70ab65🚥
Tree-SHA512: adda760891b12d252dc9b823fe7c41eed660364b6fb1a69f17607d7a31eb0bbb82a80d154a7acfaa241b5de37d42a293c2b6e059f26a8e92d88d3a87c99768fb
fa67b8181c Refactor: Remove unused FlatFilePos::SetNull (MarcoFalke)
Pull request description:
This is unused outside of tests and the default constructor. With C++11, it can be replaced by C++11 member initializers in the default constructor.
Beside removing unused code, this also makes it less fragile in light of uninitialized memory. (See also https://github.com/bitcoin/bitcoin/pull/26296#issuecomment-1477801767)
If new code needs to set this to null, it can use `std::optional`, or in the worst case re-introduce this method.
ACKs for top commit:
dergoegge:
Code review ACK fa67b8181c
TheCharlatan:
ACK fa67b8181c
john-moffett:
ACK fa67b8181c
Tree-SHA512: 465c5e3eb4625405c445695d33e09a1fc5185c7dd1e766ba06034fb093880bfc65441d5334f7d9b20e2e417c2075557d86059f59d9648ca0e62a54c699c029b9
2c3a90f663 log: on new valid header (James O'Beirne)
e5ce857634 log: net: new header over cmpctblock (James O'Beirne)
Pull request description:
Alternate to #27276.
Devs were [suprised to realize](https://twitter.com/jamesob/status/1637237917201383425) last night that we don't have definitive logging for when a given header was first received.
This logs to the main stream when new headers are received outside of IBD, as well as when headers come in over cmpctblocks. The rationale of not hiding these under log categories is that they may be useful to have widely available when debugging strange network activity, and the marginal volume is modest.
ACKs for top commit:
dergoegge:
Code review ACK 2c3a90f663
achow101:
ACK 2c3a90f663
Sjors:
tACK 2c3a90f663
josibake:
ACK 2c3a90f663
Tree-SHA512: 49fdcbe07799c8adc24143d7e5054a0c93fef120d2e9d5fddbd3b119550d895e2985be6ac10dd1825ea23a6fa5479c1b76d5518c136fbd983fa76c0d39dc354f
fabb95e7bf doc: add release note for 26899 (brunoerg)
c84c5f6e89 p2p: set `-dnsseed` and `-listen` false if `maxconnections=0` (brunoerg)
Pull request description:
If `maxconnections=0`, it means our possible connections are going to be manual (e.g via `addnode`). For this reason, we can skip DNS seeds and set `listen` false.
ACKs for top commit:
achow101:
ACK fabb95e7bf
vasild:
ACK fabb95e7bf
1440000bytes:
reACK fabb95e7bf
Tree-SHA512: 33919a784723a32450f39ee4f6de3e27cc7c7f4c6ab4b8ce673981d461df334197deaf43e3f882039fa1ac36b2fddc6c6ab4413512d6c393d4a6865302dd05e7
4b7aec2951 Add mempool tracepoints (virtu)
Pull request description:
This PR adds multiple mempool tracepoints.
| tracepoint | description |
| ------------- | ------------- |
| `mempool:added` | Is called when a transaction enters the mempool |
| `mempool:removed` | ... when a transaction is removed from the mempool |
| `mempool:replaced` | ... when a transaction is replaced in the mempool |
| `mempool:rejected` | ... when a transaction is rejected from entering the mempool |
The tracepoints are further documented in `docs/tracing.md`. Usage is demonstrated in the example script `contrib/tracing/mempool_monitor.py`. Interface tests are provided in `test/functional/interface_usdt_mempool.py`.
The rationale for passing the removal reason as a string instead of numerically is that the benefits of not having to maintain a redundant enum-string mapping seem to outweigh the small cost of string generation. The reject reason is passed as string as well, although in this instance the string does not have to be generated but is readily available.
ACKs for top commit:
0xB10C:
ACK 4b7aec2951
achow101:
ACK 4b7aec2951
Tree-SHA512: 6deb3ba2d1a061292fb9b0f885f7a5c4d11b109b838102d8a8f4828cd68f5cd03fa3fc64adc6fdf54a08a1eaccce261b0aa90c2b8c33cd5fd3828c8f74978958
Tracepoints for added, removed, replaced, and rejected transactions.
The removal reason is passed as string instead of a numeric value, since
the benefits of not having to maintain a redundant enum-string mapping
seem to outweigh the small cost of string generation. The reject reason
is passed as string as well, although here the string does not have to
be generated but is readily available.
So far, tracepoint PRs typically included two demo scripts: a naive
bpftrace script to show raw tracepoint data and a bcc script for a more
refined view. However, as some of the ongoing changes to bpftrace
introduce a certain degree of unreliability (running some of the
existing bpftrace scripts was not possible with standard kernels and
bpftrace packages on latest stable Ubuntu, Debian, and NixOS), this PR
includes only a single bcc script that fuses the functionality of former
bpftrace and bcc scripts.
