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MarcoFalke 608359b071
Merge #16426: Reverse cs_main, cs_wallet lock order and reduce cs_main locking
6a72f26968 [wallet] Remove locked_chain from CWallet, its RPCs and tests (Antoine Riard)
841178820d [wallet] Move methods from Chain::Lock interface to simple Chain (Antoine Riard)
0a76287387 [wallet] Move getBlockHash from Chain::Lock interface to simple Chain (Antoine Riard)
de13363a47 [wallet] Move getBlockHeight from Chain::Lock interface to simple Chain (Antoine Riard)
b855592d83 [wallet] Move getHeight from Chain::Lock interface to simple Chain (Antoine Riard)

Pull request description:

  This change is intended to make the bitcoin node and its rpc, network and gui interfaces more responsive while the wallet is in use. Currently, because the node's `cs_main` mutex is always locked before the wallet's `cs_wallet` mutex (to prevent deadlocks), `cs_main` currently stays locked while the wallet does relatively slow things like creating and listing transactions.

  Switching the lock order so `cs_main` is acquired after `cs_wallet` allows `cs_main` to be only locked intermittently while the wallet is doing slow operations, so the node is not blocked waiting for the wallet.

  To review the present PR, most of getting right the move is ensuring any `LockAssertion` in `Chain::Lock` method is amended as a `LOCK(cs_main)`. And in final commit, check that any wallet code which was previously locking the chain is now calling a  method, enforcing the lock taking job. So far the only exception I found is `handleNotifications`, which should be corrected.

ACKs for top commit:
  MarcoFalke:
    re-ACK 6a72f26968 🔏
  fjahr:
    re-ACK 6a72f26968
  ryanofsky:
    Code review ACK 6a72f26968. Only difference compared to the rebase I posted is reverting unneeded SetLastBlockProcessed change in wallet_disableprivkeys test

Tree-SHA512: 9168b3bf3432d4f8bc4d9fa9246ac057050848e673efc264c8f44345f243ba9697b05c22c809a79d1b51bf0de1c4ed317960e496480f8d71e584468d4dd1b0ad
2020-05-01 06:59:09 -04:00
.github Remove GitHub Actions CI workflow. 2020-01-30 18:45:28 +00:00
.tx tx: Bump transifex slug to 020x 2020-03-16 10:52:55 +01:00
build-aux/m4 Update ax_cxx_compile_stdcxx.m4 2020-04-11 02:15:20 -07:00
build_msvc scripted-diff: Bump copyright headers 2020-04-16 13:33:09 -04:00
ci ci: Merge C++17 build with one of the existing ones 2020-04-30 12:50:36 -04:00
contrib Merge #18556: build: Drop make dist in gitian builds 2020-04-28 16:44:17 +08:00
depends Revert "Merge #16367: Multiprocess build support" 2020-04-10 19:38:21 -04:00
doc fix: update rest info on block size and json 2020-04-28 20:17:03 -05:00
share Merge #18556: build: Drop make dist in gitian builds 2020-04-28 16:44:17 +08:00
src Merge #16426: Reverse cs_main, cs_wallet lock order and reduce cs_main locking 2020-05-01 06:59:09 -04:00
test Merge #18576: test: use unittest for test_framework unit testing 2020-04-30 09:30:13 -04:00
.appveyor.yml Merge #18640: appveyor: Remove clcache 2020-04-15 16:19:52 -04:00
.cirrus.yml appveyor: Disable functional tests for now 2020-04-14 09:15:18 -04:00
.gitattributes Separate protocol versioning from clientversion 2014-10-29 00:24:40 -04:00
.gitignore Revert "Merge #16367: Multiprocess build support" 2020-04-10 19:38:21 -04:00
.python-version .python-version: Specify full version 3.5.6 2019-03-02 12:06:26 -05:00
.style.yapf test: .style.yapf: Set column_limit=160 2019-03-04 18:28:13 -05:00
.travis.yml ci: Merge C++17 build with one of the existing ones 2020-04-30 12:50:36 -04:00
autogen.sh scripted-diff: Bump copyright of files changed in 2019 2019-12-30 10:42:20 +13:00
configure.ac Merge #18591: Add C++17 build to Travis 2020-04-30 11:16:56 +02:00
CONTRIBUTING.md Merge #18283: doc: Explain rebase policy in CONTRIBUTING.md 2020-03-11 16:01:25 +01:00
COPYING doc: Update license year range to 2020 2019-12-26 23:11:21 +01:00
INSTALL.md Update INSTALL landing redirection notice for build instructions. 2016-10-06 12:27:23 +13:00
libbitcoinconsensus.pc.in build: remove libcrypto as internal dependency in libbitcoinconsensus.pc 2019-11-19 15:03:44 +01:00
Makefile.am Merge #18107: build: Add cov_fuzz target 2020-03-27 14:29:48 +01:00
README.md Adding build instructions to Bitcoin Core, fixes #18658 2020-04-16 21:01:00 -07:00
SECURITY.md doc: Remove explicit mention of version from SECURITY.md 2019-06-14 06:39:17 -04:00

Bitcoin Core integration/staging tree

https://bitcoincore.org

What is Bitcoin?

Bitcoin is an experimental digital currency that enables instant payments to anyone, anywhere in the world. Bitcoin uses peer-to-peer technology to operate with no central authority: managing transactions and issuing money are carried out collectively by the network. Bitcoin Core is the name of open source software which enables the use of this currency.

For more information, as well as an immediately usable, binary version of the Bitcoin Core software, see https://bitcoincore.org/en/download/, or read the original whitepaper.

License

Bitcoin Core is released under the terms of the MIT license. See COPYING for more information or see https://opensource.org/licenses/MIT.

Development Process

The master branch is regularly built (see doc/build-*.md for instructions) and tested, but is not guaranteed to be completely stable. Tags are created regularly to indicate new official, stable release versions of Bitcoin Core.

The contribution workflow is described in CONTRIBUTING.md and useful hints for developers can be found in doc/developer-notes.md.

Testing

Testing and code review is the bottleneck for development; we get more pull requests than we can review and test on short notice. Please be patient and help out by testing other people's pull requests, and remember this is a security-critical project where any mistake might cost people lots of money.

Automated Testing

Developers are strongly encouraged to write unit tests for new code, and to submit new unit tests for old code. Unit tests can be compiled and run (assuming they weren't disabled in configure) with: make check. Further details on running and extending unit tests can be found in /src/test/README.md.

There are also regression and integration tests, written in Python, that are run automatically on the build server. These tests can be run (if the test dependencies are installed) with: test/functional/test_runner.py

The Travis CI system makes sure that every pull request is built for Windows, Linux, and macOS, and that unit/sanity tests are run automatically.

Manual Quality Assurance (QA) Testing

Changes should be tested by somebody other than the developer who wrote the code. This is especially important for large or high-risk changes. It is useful to add a test plan to the pull request description if testing the changes is not straightforward.

Translations

Changes to translations as well as new translations can be submitted to Bitcoin Core's Transifex page.

Translations are periodically pulled from Transifex and merged into the git repository. See the translation process for details on how this works.

Important: We do not accept translation changes as GitHub pull requests because the next pull from Transifex would automatically overwrite them again.

Translators should also subscribe to the mailing list.