a8b5d20 Reset pblocktree before deleting LevelDB file (Sjors Provoost)
Pull request description:
#11043 repaced:
```
delete pblocktree;
pblocktree = new CBlockTreeDB(nBlockTreeDBCache, false, fReset);
```
With:
```
pblocktree.reset(new CBlockTreeDB(nBlockTreeDBCache, false, fReset));
```
This is problematic because `new CBlockTreeDB` tries to delete the existing file, which will fail with `LOCK: already held by process` if it's still open. That's the case for QT.
When QT finds a problem with the index it will ask the user if they want to reindex. At that point it has already opened `blocks/index`. It then runs this [while loop](https://github.com/bitcoin/bitcoin/blob/v0.16.0rc3/src/init.cpp#L1415) again with `fReset = 1`, resulting in the above error.
This change makes that error go away, presumably because `reset()` without an argument closes the file.
Tree-SHA512: fde8b546912f6773ac64da8476673cc270b125aa2d909212391d1a2001b35c8260a8772126b99dfd76b39faaa286feb7c43239185fe584bd4dc2bc04a64044ce
1687cb4 Refactor: One CBaseChainParams should be enough (Jorge Timón)
Pull request description:
There's no need for class hierarchy with CBaseChainParams, it is just a struct with 2 fields.
This starts as a +10-43 diff
Tree-SHA512: 0a7dd64ab785416550b541787c6083540e4962d76b6cffa806bb3593aec2daf1752dfe65ac5cd51b34ad5c31dd8292c422b483fdd2d37d0b7e68725498ed4c2d
c8edc2c [docs] initial QT documentation, move Qt Creator instructions (Sjors Provoost)
Pull request description:
I'll update this as I figure out how everything is tied together, but I think it's a useful enough start.
Tree-SHA512: d96e5c9ba8ccc3a1b92a0894a8a8449317100eebb14e5d390b51793534458f50eac296cf2945fccf81b85aff23fa32d91d6015a0a76ada4f7091a400d7508ae5
This resolves a bug introduced in
66aa1d58a1 where, if when responding
to a series of transaction requests in a getdata we hit the send
buffer limit and set fPauseSend, we will skip one transaction per
call to ProcessGetData.
Bug found by Cory Fields (@theuni).
669c943 Avoid leaking prioritization information when relaying transactions (Suhas Daftuar)
e868b22 fee estimator: avoid sorting mempool on shutdown (Suhas Daftuar)
0975406 Correct mempool mapTx comment (Suhas Daftuar)
Pull request description:
Following up on #12127 and #12118, this cleans up a comment that was left incorrect in txmempool.h, and addresses a couple of the observations @TheBlueMatt made about an unnecessary use of `queryHashes()` and a small information leak when prioritizing transactions.
Left undone is nuking queryHashes altogether; that would require changing the behavior of the `getrawmempool` rpc call, which I think I might be in favor of doing, but wanted to save for its own PR.
Tree-SHA512: c97d10b96dcd6520459287a4a2eda92774173757695100fcfe61e526aef86f394507c331d17f9e0c14b496c33ec46198a0f165a847762ca50f7c6780b993f162
2f960b5 [wallet] Indent only change of CWallet::AvailableCoins (João Barbosa)
1beea7a [wallet] Make CWallet::ListCoins atomic (João Barbosa)
Pull request description:
Fix a potencial race in `CWallet::ListCoins`.
Replaces `cs_main` and `cs_wallet` locks by assertions in `CWallet::AvailableCoins`.
Tree-SHA512: 09109f44a08b4b53f7605d950ab506d3f748490ab9aed474aa200e93f7b0b9f96f9bf60abe1c5f658240fd13d9e3267c0dd43fd3c1695d82384198ce1da8109f
fa795cf wallet: Disallow abandon of conflicted txes (MarcoFalke)
Pull request description:
Abandon transactions that are already conflicted is a noop, so don't try and return false/throw instead.
Tree-SHA512: fd2af4149bd2323f7f31fe18685c763790b8589319b4e467b464ab456d5e8971501ab16d124e57a22693666b06ae433ac3e59f0fd6dfbd2be2c6cae8be5bcbd8
a9d0ebc262 Enable flake8 warnings for all currently non-violated rules (practicalswift)
4cbab15e75 tests: Fix accidental redefinition of previously defined variable via list comprehension (practicalswift)
0b9207efbe Enable flake8 warning for "list comprehension redefines 'foo' from line N" (F812) (practicalswift)
Pull request description:
* Enable `flake8` warnings for all currently non-violated rules
* Fix accidental redefinition via list comprehension
Tree-SHA512: 738b87789e99d02abb2c6b8ff58f65c0cbfeb93e3bf320763e033e510ebd0a4f72861bc8faaf42c14a056a5d4659c33dc70a63730a32cc15159559427bf21193
db1cbcc [RPC] Remove deprecated addmultisigaddress return format (John Newbery)
cb28a0b [RPC] Remove deprecated createmultisig object (John Newbery)
ed45c82 [tests] Remove test for deprecated createmultsig option (John Newbery)
d066a1c [rpc] Remove deprecated getmininginfo RPC option (John Newbery)
c6f09c2 [rpc] remove deprecated estimatefee RPC (John Newbery)
a8e437a [tests] Remove estimatefee from rpc_deprecated.py test (John Newbery)
a5623b1 [tests] Remove tests for deprecated estimatefee RPC (John Newbery)
d119f2e [tests] Fix style warnings in feature_fee_estimation.py (John Newbery)
Pull request description:
There were some RPC/RPC options deprecated in v0.16. Those can now be removed from master since v0.16 has been branched.
- `estimatefee` RPC has been removed. The `feature_fee_estimation.py` test has been updated to remove the RPC, but doesn't yet have good coverage of the replacement RPC `estimatesmartfee`. Improving the test coverage should be done in a new PR. (#11031)
- the `errors` field returned by `getmininginfo` has been deprecated and replaced by a `warning` field. (#10858)
- providing addresses as inputs to `createmultisig` has been deprecated. Users should use `addmultisigaddress` instead (#11415)
- The return format from `addmultisigaddress` has changed (#11415)
`getwitnessaddress` was also deprecated in v0.16 and can be removed, but many tests are using that RPC, so it's a larger job to remove. It should be removed in a separate PR (possibly after #11739 and #11398 have been merged and the segwit test code tidied up)
Tree-SHA512: 8ffaa5f6094131339b9e9e468e8b141de4b144697d2271efa2992b80b12eb97849ade3da8df5c1c9400ed4c04e6a029926550a3e5846d2029b644f9e84ac7124
5bdbbdc Refactor HaveKeys to early return on false result (João Barbosa)
Pull request description:
This consists in a trivial change where the return type of `HaveKeys()` is now `bool` meaning that it returns whether all keys are in the keystore, and early returns when one isn't.
Tree-SHA512: 03e35ea8486404b84884b49f6905c9f4fc161a3eeef080b06482d77985d5242a2bdd57a34b8d16abe19ee8c6cfa3e6fbcb935c73197d53f4cd468a2c7c0b889b
45eea40 Bech32 addresses in dumpwallet (fivepiece)
Pull request description:
Output bech32 addresses in dumpwallet if address type is not as legacy
Tree-SHA512: f6b6f788293779fe6339b94d9b792180e1d1dcb9c8e826caef8693557e1710213ba57891981c17505ace8d67b407eeca6fd9a8825757dd292cca2aa12575d15c
02fc886 Add braces to meet code style on line-after-the-one-changed. (Matt Corallo)
85aa839 Hold mempool.cs for the duration of ATMP. (Matt Corallo)
Pull request description:
This resolves an issue where getrawmempool() can race mempool
notification signals. Intuitively we use mempool.cs as a "read
lock" on the mempool with cs_main being the write lock, so holding
the read lock intermittently while doing write operations is
somewhat strange.
This also avoids the introduction of cs_main in getrawmempool()
which reviewers objected to in the previous fix in #12273
Tree-SHA512: 29464b9ca3890010ae13b7dc1c53487cc2bc9c3cf3d32a14cb09c8aa33848f57959d8991ea096beebcfb72f062e4e1962f104aefe4252c7db87633bbfe4ab317
11e0151 http: Remove numThreads and ThreadCounter (Wladimir J. van der Laan)
f946654 http: Remove WaitExit from WorkQueue (Wladimir J. van der Laan)
b1c2370 http: Join worker threads before deleting work queue (Wladimir J. van der Laan)
Pull request description:
This prevents a potential race condition if control flow ends up in
`ShutdownHTTPServer` before the thread gets to `queue->Run()`,
deleting the work queue while workers are still going to use it.
Meant to fix#12362.
Tree-SHA512: 8108514aeee5b2067a3736ed028014b580d1cbf8530ac7682b8a23070133dfa1ca21db4358c9158ea57e8811e0551395b6cb769887876b9cfce067ee968d0642
1e5d14b qt: Clarify some comments (Wladimir J. van der Laan)
f5a4c3d qt: Make sure splash screen is freed on AppInitMain fail (Wladimir J. van der Laan)
Pull request description:
The `splashFinished` event was never sent if AppInitMain fails, causing the splash screen to stick around, causing problems later.
This bug has existed for a while but is now trigging potential crashed because the splash screen subscribes to wallet events.
Meant to fix#12372.
Tree-SHA512: 192a7e3a528015e771d7860dd95fd7b772292fd8064abf2a3cf3a8ea0d375cd43a6e8ed37ca1a38962fe1410c934599e557adf6a8ef9d87ec7f61b6e5fd8db7e
2222bf0 qt: Poll ShutdownTimer after init is done (MarcoFalke)
Pull request description:
The shutdown process has started in `requestShutdown`, but initialize will happily continue with `initializeResult` and start threads late in the shutdown progess. Deleting this running thread will crash the application according to the qt docs:
e5033a5c9b/src/corelib/thread/qthread.cpp (L412-L415)
Potential fix for https://github.com/bitcoin/bitcoin/issues/12372#issuecomment-363642332
This reverts #11831 for now and hopefully restores the previous behaviour.
Tree-SHA512: 8e1706afe90ddf2d972aca12c12d4cb2a9a4f38646c59c5466fe5a1a67361896b93c43917d5ac283841ee2bcc62e6bb8dc2bc81dea9129c899b354e9a4ef241b
dd2de47 Fix fast-shutdown crash if genesis block was not loaded (Matt Corallo)
1c9394a Fix fast-shutdown hang on ThreadImport+GenesisWait (Matt Corallo)
Pull request description:
The second commit is a much simpler alternative fix for the issue fixed in #12349. To test I made ShutdownRequested() always StartShutdown() after a certain number of calls, which turned up one other hang, fixed in the first commit.
Tree-SHA512: 86bde6ac4b8b4e2cb99fff87dafeed02c0d9514acee6d94455637fb2da9ffc274b5ad31b0a6b9f5bd7b700ae35395f28ddb14ffc65ddda3619aa28df28a5607d
9ad6746ccd Use static_cast instead of C-style casts for non-fundamental types (practicalswift)
Pull request description:
A C-style cast is equivalent to try casting in the following order:
1. `const_cast(...)`
2. `static_cast(...)`
3. `const_cast(static_cast(...))`
4. `reinterpret_cast(...)`
5. `const_cast(reinterpret_cast(...))`
By using `static_cast<T>(...)` explicitly we avoid the possibility of an unintentional and dangerous `reinterpret_cast`. Furthermore `static_cast<T>(...)` allows for easier grepping of casts.
For a more thorough discussion, see ["ES.49: If you must use a cast, use a named cast"](https://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines#es49-if-you-must-use-a-cast-use-a-named-cast) in the C++ Core Guidelines (Stroustrup & Sutter).
Tree-SHA512: bd6349b7ea157da93a47b8cf238932af5dff84731374ccfd69b9f732fabdad1f9b1cdfca67497040f14eaa85346391404f4c0495e22c467f26ca883cd2de4d3c
The `splashFinished` event was never sent if AppInitMain fails,
causing the splash screen to stick around, causing problems
later.
This bug has existed for a while but is now trigging potential crashed
because the splash screen subscribes to wallet events.
Meant to fix#12372.
Signed-off-by: Wladimir J. van der Laan <laanwj@gmail.com>
The HTTP worker thread counter, as well as the RAII object that was used
to maintain it, is unused now, so can be removed.
Signed-off-by: Wladimir J. van der Laan <laanwj@gmail.com>
