- /// Sends a transaction out to (hopefully) be mined.
- pub broadcast_transaction: extern "C" fn (this_arg: *const c_void, tx: crate::c_types::Transaction),
+ /// Sends a list of transactions out to (hopefully) be mined.
+ /// This only needs to handle the actual broadcasting of transactions, LDK will automatically
+ /// rebroadcast transactions that haven't made it into a block.
+ ///
+ /// In some cases LDK may attempt to broadcast a transaction which double-spends another
+ /// and this isn't a bug and can be safely ignored.
+ ///
+ /// If more than one transaction is given, these transactions should be considered to be a
+ /// package and broadcast together. Some of the transactions may or may not depend on each other,
+ /// be sure to manage both cases correctly.
+ ///
+ /// Bitcoin transaction packages are defined in BIP 331 and here:
+ /// https://github.com/bitcoin/bitcoin/blob/master/doc/policy/packages.md
+ pub broadcast_transactions: extern "C" fn (this_arg: *const c_void, txs: crate::c_types::derived::CVec_TransactionZ),