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-rw-r--r--src/interfaces/chain.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/src/interfaces/chain.h b/src/interfaces/chain.h
index a9b05f27fc..d11a59241e 100644
--- a/src/interfaces/chain.h
+++ b/src/interfaces/chain.h
@@ -269,6 +269,16 @@ public:
//! Register handler for RPC. Command is not copied, so reference
//! needs to remain valid until Handler is disconnected.
virtual std::unique_ptr<Handler> handleRpc(const CRPCCommand& command) = 0;
+
+ //! Synchronously send TransactionAddedToMempool notifications about all
+ //! current mempool transactions to the specified handler and return after
+ //! the last one is sent. These notifications aren't coordinated with async
+ //! notifications sent by handleNotifications, so out of date async
+ //! notifications from handleNotifications can arrive during and after
+ //! synchronous notifications from requestMempoolTransactions. Clients need
+ //! to be prepared to handle this by ignoring notifications about unknown
+ //! removed transactions and already added new transactions.
+ virtual void requestMempoolTransactions(Notifications& notifications) = 0;
};
//! Interface to let node manage chain clients (wallets, or maybe tools for