core-lightning/lightningd/build_utxos.h
Rusty Russell d77e7963f9 funding_tx: permute inputs, don't re-calculate fees
built_utxos needs to calculate fees for figuring out how many utxos to
use, so fix that logic and rely on it.

We make build_utxos return a pointer array, so funding_tx can simply hand
that to permute_inputs.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-03-07 11:28:09 +10:30

16 lines
652 B
C

#ifndef LIGHTNING_LIGHTNINGD_BUILD_UTXOS_H
#define LIGHTNING_LIGHTNINGD_BUILD_UTXOS_H
#include "config.h"
#include <lightningd/lightningd.h>
#include <lightningd/utxo.h>
/* Reserves UTXOs to build tx which pays this amount; returns NULL if
* impossible. *change_satoshis 0 if no change needed. */
const struct utxo **build_utxos(const tal_t *ctx,
struct lightningd *ld, u64 satoshi_out,
u32 feerate_per_kw, u64 dust_limit,
u64 *change_satoshis, u32 *change_keyindex);
/* Once we've spent them, mark them confirmed. */
void confirm_utxos(struct lightningd *ld, const struct utxo **utxos);
#endif /* LIGHTNING_LIGHTNINGD_BUILD_UTXOS_H */