Merge #13080: mempool: Add compile time checking for ::mempool.cs runtime locking assertions

cbba1d2 Add compile time checking for all ::mempool.cs runtime locking assertions (practicalswift)

Pull request description:

  Add compile time checking for `::mempool.cs` runtime locking assertions.

  This PR is a subset of #12665. The PR was broken up to make reviewing easier.

  The intention is that literally all `EXCLUSIVE_LOCKS_REQUIRED`/`LOCKS_EXCLUDED`:s added in this PR should follow either directly or indirectly from `AssertLockHeld(…)`/`AssertLockNotHeld(…)`:s already existing in the repo.

  Consider the case where function `A(…)` contains `AssertLockHeld(cs_foo)` (without
  first locking `cs_foo` in `A`), and that `B(…)` calls `A(…)` (without first locking `cs_main`):
  * It _directly_ follows that: `A(…)` should have an `EXCLUSIVE_LOCKS_REQUIRED(cs_foo)` annotation.
  * It _indirectly_ follows that: `B(…)` should have an `EXCLUSIVE_LOCKS_REQUIRED(cs_foo)` annotation.

Tree-SHA512: 1b5ec1cfca6be67edd1298fea1a52b5572ce833dd4ad05c4583f753c2d3229402663373675df87e950151d5c41aeb3ee02f0ad935ed83fe2f45ca8e4d55d901e

Author: MarcoFalke

src/policy/rbf.h

@@ -23,6 +23,6 @@ bool SignalsOptInRBF(const CTransaction &tx);
 // according to BIP 125
 // This involves checking sequence numbers of the transaction, as well
 // as the sequence numbers of all in-mempool ancestors.
-RBFTransactionState IsRBFOptIn(const CTransaction &tx, CTxMemPool &pool);
+RBFTransactionState IsRBFOptIn(const CTransaction &tx, CTxMemPool &pool) EXCLUSIVE_LOCKS_REQUIRED(pool.cs);
 
 #endif // BITCOIN_POLICY_RBF_H

src/rpc/blockchain.cpp

@@ -383,7 +383,7 @@ static std::string EntryDescriptionString()
            "       ... ]\n";
 }
 
-static void entryToJSON(UniValue &info, const CTxMemPoolEntry &e)
+static void entryToJSON(UniValue &info, const CTxMemPoolEntry &e) EXCLUSIVE_LOCKS_REQUIRED(::mempool.cs)
 {
     AssertLockHeld(mempool.cs);
 

src/txmempool.h

@@ -451,7 +451,7 @@ class CTxMemPool
     mutable bool blockSinceLastRollingFeeBump;
     mutable double rollingMinimumFeeRate; //!< minimum fee to get into the pool, decreases exponentially
 
-    void trackPackageRemoved(const CFeeRate& rate);
+    void trackPackageRemoved(const CFeeRate& rate) EXCLUSIVE_LOCKS_REQUIRED(cs);
 
 public:
 
@@ -512,7 +512,7 @@ class CTxMemPool
     void UpdateParent(txiter entry, txiter parent, bool add);
     void UpdateChild(txiter entry, txiter child, bool add);
 
-    std::vector<indexed_transaction_set::const_iterator> GetSortedDepthAndScore() const;
+    std::vector<indexed_transaction_set::const_iterator> GetSortedDepthAndScore() const EXCLUSIVE_LOCKS_REQUIRED(cs);
 
 public:
     indirectmap<COutPoint, const CTransaction*> mapNextTx;
@@ -572,7 +572,7 @@ class CTxMemPool
      *  Set updateDescendants to true when removing a tx that was in a block, so
      *  that any in-mempool descendants have their ancestor state updated.
      */
-    void RemoveStaged(setEntries &stage, bool updateDescendants, MemPoolRemovalReason reason = MemPoolRemovalReason::UNKNOWN);
+    void RemoveStaged(setEntries &stage, bool updateDescendants, MemPoolRemovalReason reason = MemPoolRemovalReason::UNKNOWN) EXCLUSIVE_LOCKS_REQUIRED(cs);
 
     /** When adding transactions from a disconnected block back to the mempool,
      *  new mempool entries may have children in the mempool (which is generally