f3d27d126b
9402ef0739 Remove temporary method assumeLocked(). Remove LockingStateImpl. Remove redundant cs_main locks. (practicalswift)
593a8e8a2c wallet: Use chain.lock() instead of temporary chain.assumeLocked() (practicalswift)
Pull request description:
Fixes #16028.
Problem description:
`LockAnnotation lock(::cs_main)` is a guarantee to the compiler thread analysis that `::cs_main` is locked (when it couldn't be determined otherwise).
Despite being annotated with the locking guarantee ...
65526fc866/src/interfaces/chain.cpp (L134-L138)
... `getTipLocator()` reads `chainActive` (via `::ChainActive()`) without holding `cs_main`.
This can be verified by adding the following `AssertLockHeld(cs_main)`:
```
$ git diff
diff --git a/src/interfaces/chain.cpp b/src/interfaces/chain.cpp
index 59623284d..9fc693a0f 100644
--- a/src/interfaces/chain.cpp
+++ b/src/interfaces/chain.cpp
@@ -134,6 +134,7 @@ class LockImpl : public Chain::Lock
CBlockLocator getTipLocator() override
{
LockAnnotation lock(::cs_main);
+ AssertLockHeld(::cs_main);
return ::ChainActive().GetLocator();
}
Optional<int> findLocatorFork(const CBlockLocator& locator) override
$ make check
../build-aux/test-driver: line 107: 12881 Aborted "$@" > $log_file 2>&1
FAIL: qt/test/test_bitcoin-qt
```
ACKs for commit 9402ef:
MarcoFalke:
utACK 9402ef0739fdcd8e989c07c0595095e9608b243c
ryanofsky:
utACK 9402ef0739fdcd8e989c07c0595095e9608b243c. Changes are consolidating commits and removing redundant lock2 cs_main calls
Tree-SHA512: 0a030bf0c07eb53194ecc246f973ef389dd42a0979f51932bf94bdf7e90c52473ae03be49718ee1629582b05dd8e0dc020b5a210318c93378ea4ace90c0f9f72
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