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txgraph: Permit transactions that exceed cluster size limit (feature)

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This removes the restriction added in the previous commit that individual
transactions do not exceed the max cluster size limit.

With this change, the responsibility for enforcing cluster size limits can
be localized purely in TxGraph, without callers (and in particular, tests)
needing to duplicate the enforcement for individual transactions.
This commit is contained in:
Pieter Wuille
2025-01-25 14:24:41 -05:00
parent c4287b9b71
commit 19b14e61ea
3 changed files with 85 additions and 36 deletions
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6
src/txgraph.h
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@@ -64,9 +64,9 @@ public:
virtual ~TxGraph() = default;
/** Construct a new transaction with the specified feerate, and return a Ref to it.
* If a staging graph exists, the new transaction is only created there. feerate.size must be
* strictly positive, and cannot exceed the graph's max cluster size. In all further calls,
* only Refs created by AddTransaction() are allowed to be passed to this TxGraph object (or
* empty Ref objects). Ref objects may outlive the TxGraph they were created for. */
* strictly positive. In all further calls, only Refs created by AddTransaction() are allowed
* to be passed to this TxGraph object (or empty Ref objects). Ref objects may outlive the
* TxGraph they were created for. */
[[nodiscard]] virtual Ref AddTransaction(const FeePerWeight& feerate) noexcept = 0;
/** Remove the specified transaction. If a staging graph exists, the removal only happens
* there. This is a no-op if the transaction was already removed.