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wallet: Minimal fix to restore conflicted transaction notifications

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This fix is a based on the fix by Antoine Riard <ariard@student.42.fr> in
https://github.com/bitcoin/bitcoin/pull/18600.

Unlike that PR, which implements some new behavior, this just restores previous
wallet notification and status behavior for transactions removed from the
mempool because they conflict with transactions in a block. The behavior was
accidentally changed in two `CWallet::BlockConnected` updates:
a31be09bfd and
7e89994133 from
https://github.com/bitcoin/bitcoin/pull/16624, causing issue
https://github.com/bitcoin/bitcoin/issues/18325.

The change here could be improved and replaced with a more comprehensive
cleanup, so it includes a detailed comment explaining future considerations.

Fixes #18325

Co-authored-by: Antoine Riard <ariard@student.42.fr>
This commit is contained in:
Russell Yanofsky
2020-05-15 09:23:55 -04:00
parent e2f6866cca
commit b604c5c8b5
9 changed files with 55 additions and 19 deletions
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3
src/interfaces/chain.h
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@@ -20,6 +20,7 @@ class CRPCCommand;
class CScheduler;
class Coin;
class uint256;
enum class MemPoolRemovalReason;
enum class RBFTransactionState;
struct bilingual_str;
struct CBlockLocator;
@@ -239,7 +240,7 @@ public:
public:
virtual ~Notifications() {}
virtual void transactionAddedToMempool(const CTransactionRef& tx) {}
virtual void transactionRemovedFromMempool(const CTransactionRef& ptx) {}
virtual void transactionRemovedFromMempool(const CTransactionRef& tx, MemPoolRemovalReason reason) {}
virtual void blockConnected(const CBlock& block, int height) {}
virtual void blockDisconnected(const CBlock& block, int height) {}
virtual void updatedBlockTip() {}