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onchaind: simplify reasonable-depth code a little.

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Suggested-by: Christian Decker
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell 2017-09-28 09:17:22 +09:30
parent f082c7b80e
commit f3025ce147
1 changed files with 16 additions and 12 deletions
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28
onchaind/onchain.c
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@ -750,30 +750,34 @@ static void output_spent(struct tracked_output ***outs,
static void update_resolution_depth(struct tracked_output *out, u32 depth)
{
bool reached_reasonable_depth;
status_trace("%s/%s->%s depth %u",
tx_type_name(out->tx_type),
output_type_name(out->output_type),
tx_type_name(out->resolved->tx_type),
depth);
/* We only set this once. */
reached_reasonable_depth = (out->resolved->depth < reasonable_depth
&& depth >= reasonable_depth);
/* BOLT #5:
*
* If the HTLC output has *timed out* and not been *resolved*,
* the node MUST *resolve* the output and MUST fail the
* corresponding incoming HTLC (if any) once the resolving
* transaction has reached reasonable depth. */
if (out->resolved->tx_type == OUR_HTLC_TIMEOUT_TX
|| out->resolved->tx_type == OUR_HTLC_TIMEOUT_TO_US) {
if (out->resolved->depth < reasonable_depth
&& depth >= reasonable_depth) {
u8 *msg;
status_trace("%s/%s reached reasonable depth %u",
tx_type_name(out->tx_type),
output_type_name(out->output_type),
depth);
msg = towire_onchain_htlc_timeout(out, out->htlc);
wire_sync_write(REQ_FD, take(msg));
}
if ((out->resolved->tx_type == OUR_HTLC_TIMEOUT_TX
|| out->resolved->tx_type == OUR_HTLC_TIMEOUT_TO_US)
&& reached_reasonable_depth) {
u8 *msg;
status_trace("%s/%s reached reasonable depth %u",
tx_type_name(out->tx_type),
output_type_name(out->output_type),
depth);
msg = towire_onchain_htlc_timeout(out, out->htlc);
wire_sync_write(REQ_FD, take(msg));
}
out->resolved->depth = depth;
}