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-rw-r--r--src/txmempool.h20
1 files changed, 12 insertions, 8 deletions
diff --git a/src/txmempool.h b/src/txmempool.h
index 2c2127f326..1763930ba0 100644
--- a/src/txmempool.h
+++ b/src/txmempool.h
@@ -15,6 +15,7 @@
#include "indirectmap.h"
#include "primitives/transaction.h"
#include "sync.h"
+#include "random.h"
#undef foreach
#include "boost/multi_index_container.hpp"
@@ -328,14 +329,17 @@ struct TxMempoolInfo
};
/**
- * CTxMemPool stores valid-according-to-the-current-best-chain
- * transactions that may be included in the next block.
+ * CTxMemPool stores valid-according-to-the-current-best-chain transactions
+ * that may be included in the next block.
*
- * Transactions are added when they are seen on the network
- * (or created by the local node), but not all transactions seen
- * are added to the pool: if a new transaction double-spends
- * an input of a transaction in the pool, it is dropped,
- * as are non-standard transactions.
+ * Transactions are added when they are seen on the network (or created by the
+ * local node), but not all transactions seen are added to the pool. For
+ * example, the following new transactions will not be added to the mempool:
+ * - a transaction which doesn't make the mimimum fee requirements.
+ * - a new transaction that double-spends an input of a transaction already in
+ * the pool where the new transaction does not meet the Replace-By-Fee
+ * requirements as defined in BIP 125.
+ * - a non-standard transaction.
*
* CTxMemPool::mapTx, and CTxMemPoolEntry bookkeeping:
*
@@ -462,7 +466,7 @@ public:
indexed_transaction_set mapTx;
typedef indexed_transaction_set::nth_index<0>::type::iterator txiter;
- std::vector<std::pair<uint256, txiter> > vTxHashes; //!< All tx hashes/entries in mapTx, in random order
+ std::vector<std::pair<uint256, txiter> > vTxHashes; //!< All tx witness hashes/entries in mapTx, in random order
struct CompareIteratorByHash {
bool operator()(const txiter &a, const txiter &b) const {